POWER PROTECTION STATIC TRANSFER SWITCH 2 USER MANUAL

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POWER PROTECTION

STATIC TRANSFER SWITCH 2

USER MANUAL

100-1000 Amp

50-60 Hz

Summary of content (152 pages)

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POWER PROTECTION STATIC TRANSFER SWITCH 2 USER MANUAL 100-1000 Amp 50-60 Hz
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TABLE OF CONTENTS IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 OVERVIEW OF MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.0 SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.0 UNPACKING AND INSPECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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6.12 Input Junction Boxes and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6.13 Seismic Floor Anchors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6.14 Seismic Floor Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7.0 INSTALLATION DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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11.2 Event and History Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 11.2.1 Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 11.2.2 History Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 11.3 Alarm Notes . . . . . . . . . . . . . . . . . . . . . . . . .
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15.0 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 15.1 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 15.1.1 15.1.2 15.1.3 15.1.4 15.1.5 15.1.6 15.1.7 15.1.8 15.2 Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input/Output Voltage . . . . . .
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FIGURES Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 Figure 33 Figure 34 Figure 35 Figure 36 Figure 37 Figure 38 Figure 39 Figure 40 Figure 41 Figure 42 Figure 43 Figure 44 Figure 45 Figure 46 Figure 47 Figure 48 Figure 49 Figure 50 Figure 51 Fig
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Figure 53 Figure 54 Figure 55 Figure 56 Figure 57 Figure 58 Figure 59 Figure 60 Figure 61 Figure 62 Figure 63 Figure 64 Event mask dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 User settings dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Source setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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IMPORTANT SAFETY INSTRUCTIONS Save these instructions This manual contains important instructions that should be followed during the installation and maintenance of the Liebert Static Transfer Switch 2 (STS2). ! WARNING The unit is supplied by more than one power source. the Unit contains hazardous voltages if any of the input sources are ON, even when the unit is in bypass. To isolate the unit, turn OFF and lock out ALL input power sources.
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OVERVIEW OF MANUAL The STS2 Installation, Operation and Maintenance Manual is organized in a logical progression so that you can follow the procedures, in the order provided to get your STS2 installed and running. Read the entire manual before proceeding with the unpacking and installation of the STS2. The major sections are as follows: Important Safety Instructions—review the instructions on the previous page before proceeding.
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Safety Precautions 1.0 SAFETY PRECAUTIONS Read this manual thoroughly before working with the static transfer switch. Be sure to review the warning under Important Safety Instructions on page 1. Refer to the Handling Considerations on page 5 before attempting to move the unit. Under typical operation and with the doors closed, only normal safety precautions are necessary. The area around the static transfer switch should be kept free from puddles of water, excess moisture and debris.
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Unpacking and Inspections 2.0 UNPACKING AND INSPECTIONS NOTE Read the entire manual before installing and operating the unit. Upon receipt of the Static Transfer Switch2, the installer should perform the following steps to assure a high-quality installation. A high-quality installation begins on the receiving dock. The STS2 and its packaging should be inspected when the unit is delivered.
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Unpacking and Inspections 2.2.1 Handling Considerations The static switch is bolted to a wooden shipping pallet to allow handling by forklift equipment or a pallet jack. Easily Moved — The unit is furnished with integral castors that allow the unit to be rolled into place after it has reached its location and is removed from the pallet. ! WARNING Exercise extreme care when handling static switch cabinets to avoid equipment damage or injury to personnel.
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Location Considerations 3.0 LOCATION CONSIDERATIONS The STS2 should be placed in a clean, cool and dry location. The STS2 requires only front access for installation and maintenance. Back or side access is not required. Adequate space is required above the unit for conduit (if configured as such) and cooling air flow. This section provides specific information for these considerations. The unit is designed with top and bottom cable terminations to allow maximum flexibility in its installation.
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Location Considerations 3.4 Altitude The standard units are designed for full load operation up to 4000 feet (1200 m) above sea level. See Figure 1 for recommended deratings for altitudes greater than 4000 feet (1200 m).
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Locating the STS2 4.0 LOCATING THE STS2 This section provides instructions for leveling the STS2 and anchoring the unit to the floor, should that be required. For leveling feet details, see Figures 5 through 10. 4.1 Leveling and Anchoring the Unit to the Floor The STS2 can be anchored to the concrete floor to ensure stability for the unit in the event of seismic activity. The seismic brackets are an option for the STS2 and are shipped separately from the unit when ordered.
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Power and Control Wiring 5.0 POWER AND CONTROL WIRING All power and control wiring should be installed by a qualified electrician. All power and control wiring must comply with the NEC and applicable local codes. Unless otherwise labeled, use the recommended tightening torque as shown in Table 25 - Torque tightening. The busbars are accessible through the front of the STS2 and designed to allow one-handed tightening.
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Power and Control Wiring The input and output power wire size should be based on the upstream overcurrent protection device, observing the NEC and local codes. The molded case switches contained in the STS2 are typically non-automatic circuit breakers that rely on the upstream and/or load overcurrent protection. Upstream overcurrent protection should be rated equal to or less than the rating of the STS2 molded case switches.
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Power and Control Wiring 5.3 System Grounding Equipment grounding — Grounding is primarily for equipment and personnel safety, although proper grounding also enhances equipment performance. All input and output power feeds must include an equipment grounding means as required by the NEC and local codes. An insulated equipment ground conductor is recommended to run with each input and output power feed.
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Power and Control Wiring 5.5 Remote Source Selection Wiring An optional Remote Source Selection board may be installed in your STS2. This board is installed in the same bay as the communications options. See Figures 21 and 22 for the location of these options. See Figure 23 for information on the control wiring for the Remote Source Selection option. The Remote Source Selection allows you choose the preferred input source from a remote location.
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Options 6.0 OPTIONS This section discusses the options available for the STS2. The communications options are also discussed in 12.0 - Communication Interfaces. 6.1 Programmable Relay Board The Programmable Relay Board (PRB) provides a means to trigger an external device when an event occurs in the STS2. Each PRB has 8 channels. Each channel has two sets of Form-C dry contacts, rated 1 Amp @ 30 VDC or 250 mAmp @ 125 VAC. Any alarm/event can be programmed to any channel or channels.
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Options 6.3 Distribution Cabinet With I-Line Panelboard—100-600A Units Only A distribution cabinet with a Square D I-Line panelboard offers space to plug in up to 10 three-pole branch circuit breakers (100A-250A). The panelboard is rated at 600A with an overall short-circuit rating of 100,000 AIC.
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Options 6.7 Network Interface Card (NIC) An OpenComms Network Interface Card (NIC) enables the STS2 to communicate to a network management system (NMS). The NIC provides the internal hardware and software to communicate, via SNMP, to any I.P.-based Ethernet network through an RJ-45 connector using Category 5 cabling.
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Options 6.12 Input Junction Boxes and Cables Two input power junction boxes and interconnecting cables provide under floor connection for the two input power feeds. Power terminal blocks are provided in each junction box for the connection of the input power conductors and a parity-sized ground conductor. The junction boxes are NEMA 1 enclosures. A main input cable assembly is provided for connection between the unit and the junction box.
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17 POWER CABLE BOTTOM ENTRY AREA CONTROL CABLE BOTTOM ENTRY AREA (116) 4.6 (546) 21.5 (213) 8.4 (932) 36.7 (376) 14.8 (272) 10.7 (548) 21.6 (736) 12MM CENTERS CASTER 29.0 CENTERS 12MM CENTERS AIR EXHAUST (238) 9.4 TOP VIEW FRONT (620) 24.4 SIDE VIEW (488) 19.2 CENTER GRAVITY (756) MAX. DOOR SWING 180° 29.8 SEE DETAIL A OUTLINE DRAWING 100 - 250 AMP STATIC TRANSFER SWITCH 2 BOTTOM VIEW (619) 24.4 (265) 10.4 FRONT (594) CASTER 23.4 CENTERS (280) 11.1 FRONT VIEW (477) 18.
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18 (544) 21.4 CONTROL CABLE BOTTOM ENTRY AREA (292) 11.5 (267) 10.5 (88) 3.5 13.3 (548) 21.6 (736) 12MM CENTERS (25) .97 REF CASTER 29.0 CENTERS 12MM CENTERS AIR EXHAUST SEE DETAIL A OUTLINE DRAWING 400 - 600 AMP STATIC TRANSFER SWITCH 2 BOTTOM VIEW (825) 32.5 (435) 17.1 POWER CABLE BOTTOM ENTRY (337) AREA (116) 4.6 (343) 13.5 CASTER CENTERS FRONT (794) 31.3 FRONT VIEW (474) 18.6 AIR INTAKE AREA DO NOT BLOCK AIR FILTER TOP VIEW (752) 29.6 FRONT (910) POWER 35.
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19 (592) 23.3 (139) 5.5 (171) 6.7 (1180) 46.4 (378) 14.9 (736) 12MM CENTERS SEE DETAIL A (1956) 77.0 BREAKER CABINET 12MM CENTERS (25) .98 REF CASTER CENTERS 29.0 (548) 21.6 OUTLINE DRAWING 800 - 1000 AMP STATIC TRANSFER SWITCH (1992) 78.4 (560) 22.1 POWER CABLE BOTTOM ENTRY AREA (1149) 45.2 CASTER CENTERS FRONT VIEW (122) 4.8 (530) 20.9 FRONT BOTTOM VIEW (673) 26.5 CONTROL CABLE BOTTOM ENTRY AREA (140) 5.5 (220) 8.7 (642) 25.3 (323) 12.7 (1064) 41.
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20 (546) 21.5 (272) 10.7 BOTTOM VIEW (619) 24.4 (376) (265) 14.8 10.4 FRONT (280) 11.1 (594) CASTER 23.4 CENTERS FRONT VIEW (477) 18.8 (548) 21.6 (736) 12MM CENTERS CASTER 29.0 CENTERS 12MM CENTERS AIR EXHAUST (238) 9.4 TOP VIEW FRONT (620) 24.4 SIDE VIEW (488) 19.2 CENTER GRAVITY (756) MAX. DOOR SWING 180° 29.8 SEE DETAIL A AIR INTAKE AREA DO NOT BLOCK AIR FILTER (1956) 77.
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21 (267) 10.5 (825) 32.5 (88) 3.5 13.3 POWER CABLE BOTTOM ENTRY (337) AREA (435) 17.1 (292) 11.5 BOTTOM VIEW (343) 13.5 (116) 4.6 FRONT (794) CASTER 31.3 CENTERS FRONT VIEW (474) 18.6 (548) 21.6 12MM CENTERS (25) .97 REF 12MM CENTERS (736) CASTER 29.0 CENTERS (228) 9.0 AIR EXHAUST SEE DETAIL A AIR INTAKE AREA DO NOT BLOCK AIR FILTER (1956) 77.0 OUTLINE DRAWING 400 - 600 AMP WITH KEY LOCKOUT SWITCH OPTION STATIC TRANSFER SWITCH 2 (544) 21.4 CONTROL CABLE BOTTOM ENTRY AREA (923) 36.
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(592) 23.3 (965) 38.0 KEY LOCKOUT SWITCH 22 (220) 8.7 (139) 5.5 (171) 6.7 (122) 4.8 (530) 20.9 FRONT CENTER GRAVITY (1992) 78.4 (1180) 46.4 (560) 22.1 POWER CABLE BOTTOM ENTRY AREA (1149) 45.2 (378) 14.9 CASTER CENTERS FRONT VIEW (1321) 52.0 12MM CENTERS (25) .98 REF (548) 21.6 7.1 12MM CENTERS (736) CASTER (180) CENTERS 29.0 SEE DETAIL A (1956) 77.0 BREAKER CABINET OUTLINE DRAWING 800 - 1000 AMP WITH KEY LOCKOUT SWITCH OPTION STATIC TRANSFER SWITCH 2 BOTTOM VIEW (673) 26.
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(832 MM) 32.75" SEE NOTE (7) FOR SPACING (107 MM) 4.2" TOP VIEW (256 MM) 10.1" FRONT (146 MM) 5.75" REAR FLOOR BRACKET SEE NOTE (2) FOR SPACING BACK WALL (107 MM) 4.2" (335 MM) 13.2" 23 4. INSTALL FRONT CABINET BASE BRACKET (FIG. 3) TO EXISTING HOLES ON UNDERSIDE OF UNIT WITH BENT FLANGE FACING FRONT. USE SUPPLIED HARDWARE AND TORQUE TO 365 LB-INCH (41.2 Nm). NOTE, LOOSEN LEVELING BOLT LOCKING NUT AND TIGHTEN AFTER BRACKET IS SECURED. 3. INSTALL REAR CABINET BASE BRACKET (FIG.
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(832 MM) 32.75" SEE NOTE (7) FOR SPACING 24 TOP VIEW (462 MM) 18.2" FRONT (335 MM) 13.2" (107 MM) 4.2" (146 MM) 5.75" REAR FLOOR BRACKET SEE NOTE (2) FOR SPACING BACK WALL 4. INSTALL FRONT CABINET BASE BRACKET (FIG. 3) TO EXISTING HOLES ON UNDERSIDE OF UNIT WITH BENT FLANGE FACING FRONT. USE SUPPLIED HARDWARE AND TORQUE TO 365 LB-INCH (41.2 Nm). NOTE, LOOSEN LEVELING BOLT LOCKING NUT AND TIGHTEN AFTER BRACKET IS SECURED. 3. INSTALL REAR CABINET BASE BRACKET (FIG.
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SIDE WALL 25 (107 MM) 4.2" (335 MM) 13.2" (107 MM) 4.2" (289 MM) 11.4" TOP VIEW (107 MM) 4.2" (396 MM) 15.6" 4. INSTALL FRONT CABINET BASE BRACKET (FIG. 3) TO EXISTING HOLES ON U NDERSIDE OF UNIT WITH BENT FLANGE FACING FRONT. USE SUPPLIED HARDWARE AND TORQUE TO 365 LB-INCH (41.2 Nm). NOTE, LOOSEN LEVELING BOLT LOCKING NUT AND TIGHTEN AFTER BRACKET IS SECURED. 3. INSTALL REAR CABINET BASE BRACKET (FIG. 2) TO EXISTING HOLES ON UNDERSIDE OF UNIT WITH TABS FACING BACK WALL.
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26 GROUND BUS (WITH FRONT PANELS REMOVED) FRONT VIEW FRONT SYSTEM OUTPUT Ø A, Ø B, Ø C CB3 CB5 CB4 SOURCE 2 INPUT Ø A, Ø B, Ø C SOURCE 1 INPUT Ø A, Ø B, Ø C CB2 NEUTRAL BUS PEM NUT SIDE VIEW CB3 PS212100 Rev. 3 ONE-LINE DIAGRAM SYSTEM OUTPUT K1 K3 K2 K1 CB4 CB2 CB1 CB5 SOURCE 2 7. THE TORQUE REQUIREMENT FOR 1/2"-13 PEM NUTS IS 428 INCH-LBS. (48 N-m). 6. HARDWARE KIT IS SUPPLIED FOR INPUT, OUTPUT, NEUTRAL, AND GROUND CABLE CONNECTIONS.
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27 GROUND BUS (WITH FRONT PANELS REMOVED) FRONT VIEW CB3 NEUTRAL BUS FRONT SYSTEM OUTPUT Ø A, Ø B, Ø C CB5 CB4 SOURCE 2 INPUT Ø A, Ø B, Ø C SOURCE 1 INPUT Ø A, Ø B, Ø C CB2 CB3A PEM NUT SIDE VIEW CB3A CB3 ONE-LINE DIAGRAM SYSTEM OUTPUT CB5 PS212101 Rev. 3 K1 K3 K2 K1 CB4 CB2 CB1 SOURCE 2 7. THE TORQUE REQUIREMENT FOR 1/2"-13 PEM NUTS IS 428 INCH-LBS. (48 N-m). 6. HARDWARE KIT IS SUPPLIED FOR INPUT, OUTPUT, NEUTRAL, AND GROUND CABLE CONNECTIONS.
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28 NEUTRAL BUS CB4 CB1 .51 DIA. GROUND BUS PEM NUT CB3 FRONT SYSTEM OUTPUT Ø A, Ø B, Ø C CB5 CB2 SOURCE 2 INPUT Ø A, Ø B, Ø C SOURCE 1 INPUT Ø A, Ø B, Ø C INPUT/OUTPUT BUS RIGHT SIDE VIEW (WITH FRONT PANELS REMOVED) FRONT VIEW GROUND BUS FRONT VIEW SIDE VIEW SECTION A-A NEUTRAL BUS RIGHT SIDE VIEW K2 K3 SYSTEM OUTPUT CB3 CB5 SOURCE 2 K1 K3 K2 CB2 PS212400 Rev. 2 ONE-LINE DIAGRAM K1 CB4 SOURCE 1 NEUTRAL BUS SOURCE 1 INPUT Ø C SOURCE 1 INPUT Ø B CB1 7.
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29 CB3A NEUTRAL BUS CB4 CB1 .51 DIA. GROUND BUS PEM NUT CB3 FRONT SYSTEM OUTPUT Ø A, Ø B, Ø C CB5 CB2 SOURCE 2 INPUT Ø A, Ø B, Ø C SOURCE 1 INPUT Ø A, Ø B, Ø C INPUT/OUTPUT BUS RIGHT SIDE VIEW (WITH FRONT PANELS REMOVED) FRONT VIEW GROUND BUS FRONT VIEW SIDE VIEW SECTION A-A NEUTRAL BUS RIGHT SIDE VIEW K2 K3 CB3 SYSTEM OUTPUT CB3A ONE-LINE DIAGRAM K1 CB4 SOURCE 1 NEUTRAL BUS SOURCE 1 INPUT Ø C SOURCE 1 INPUT Ø B CB1 PS212401 Rev. 2 CB5 SOURCE 2 K1 K3 K2 CB2 7.
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30 FRONT VIEW CB1 .51 DIA. SOURCE 1 INPUT Ø A, Ø B, Ø C INPUT/OUTPUT BUS RIGHT SIDE VIEW (WITH FRONT PANELS REMOVED) CB4 GROUND BUS FRONT VIEW PEM NUT NEUTRAL BUS FRONT CB3 SYSTEM OUTPUT Ø A, Ø B, Ø C GROUND BUS CB5 CB2 SOURCE 2 INPUT Ø A, Ø B, Ø C SIDE VIEW SECTION A-A NEUTRAL BUS RIGHT SIDE VIEW .51 DIA. K2 K3 SYSTEM OUTPUT CB3 K1 K3 K2 CB2 CB5 SOURCE 2 PS212800 Rev.
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31 FRONT VIEW (WITH FRONT PANELS REMOVED) SIDE VIEW SECTION A-A K2 K3 CB3 SYSTEM OUTPUT ONE-LINE DIAGRAM PS212801 Rev. 2 CB5 SOURCE 2 K1 K3 K2 K1 CB3A CB2 CB1 CB4 SOURCE 1 7. THE TORQUE REQUIREMENT FOR 1/2"-13 PEM NUTS IS 428 INCH-LBS. (48 N-m). 6. HARDWARE KIT IS SUPPLIED FOR INPUT, OUTPUT, NEUTRAL, AND GROUND CABLE CONNECTIONS. KIT INCLUDES 1/2" BOLTS, WASHERS, AND NUTS FOR CONNECTING CABLES TO THE BUS BARS. 5. ALL WIRING IS TO BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.
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32 1200A 800A 250A WITHSTAND CURRENT 100K 65K 25K 100K 65K 25K 100K 100K 25K 100K 100K 25K 100K 65K 25K 100K 65K 25K VOLTAGE 200-240V 380-480V 600V 200-240V 380-480V 600V 200-240V 380-480V 600V 200-240V 380-480V 600V 200-240V 380-480V 600V 200-240V 380-480V 600V CIRCUIT BREAKER SCHEDULE 100AMP TO 1000AMP STATIC TRANSFER SWITCH 2 PS214000 REV. NO. 3 2. UPSTREAM DEVICES (BY OTHERS) MUST BE USED TO PROVIDE OVERCURRENT PROTECTION.
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33 FRONT VIEW WITH FRONT DOOR REMOVED CONTROL WIRING OPTION LOCATION DETAIL SEE OPTION LOCATION DETAIL PS213000 Rev. 1 COMMS BOARD FOR SITESCAN, EXTERNAL AND INTERNAL MODEM INTERFACE (OPTION) INPUT CONTACT ISOLATOR BOARD (OPTION) OR PROGRAMMABLE RELAY BOARD (OPTION) SEE NOTE 2 NETWORK INTERFACE CARD (NIC) (OPTION) PROGRAMMABLE RELAY BOARD (OPTION) SEE NOTE 2 PROGRAMMABLE RELAY BOARD (OPTION) SEE NOTE 2 REMOTE SOURCE SELECT (OPTION) 2. MAXIMUM OF TWO (2) PROGRAMMABLE RELAY BOARDS CAN BE USED. 1.
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34 CONTROL WIRING FRONT VIEW WITH FRONT DOOR REMOVED SEE OPTION LOCATION DETAIL OPTION LOCATION DETAIL PS213800 Rev. 1 COMMS BOARD FOR SITESCAN, EXTERNAL AND INTERNAL MODEM INTERFACE (OPTION) INPUT CONTACT ISOLATOR BOARD (OPTION) OR PROGRAMMABLE RELAY BOARD (OPTION) SEE NOTE 2 NETWORK INTERFACE CARD (NIC) (OPTION) PROGRAMMABLE RELAY BOARD (OPTION) SEE NOTE 2 PROGRAMMABLE RELAY BOARD (OPTION) SEE NOTE 2 REMOTE SOURCE SELECT (OPTION) 2. MAXIMUM OF TWO (2) PROGRAMMABLE RELAY BOARDS CAN BE USED. 1.
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35 2 GND 4 GND TB50 3 S2 SOURCE 2 PREFERRED 5 6 REMOTE SOURCE SELECTION 1 S1 SOURCE 1 PREFERRED SEE NOTE 1 PS213007 Rev. 1 5. ALL WIRING MUST BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES. 4. REFER TO STATIC TRANSFER SWITCH CONTROL CONNECTION DIAGRAM FOR LOCATION OF REMOTE SOURCE SELECTION OPT. 3. ALL CONTROL WIRING (BY OTHERS) MUST BE RUN SEPARATE FROM POWER WIRING. CONTROL WIRING RUNS SHOULD NOT BE COMBINED IN THE SAME CONDUIT. 2. MAXIMUM CABLE LENGTH 500 FT.
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J74 36 CH8 CH7 CH6 CH5 CH4 CH3 CH2 2 5 8 11 14 2 5 8 11 14 2 5 8 11 14 2 NC NOTE: PIN 16 NOT USED ON J71, J72, & J73 J74 J73 J72 J71 1 4 7 10 13 1 4 7 10 13 1 4 7 10 13 1 1-3 4-6 7-9 10 - 12 13 - 15 1-3 4-6 7-9 10 - 12 13 - 15 1-3 4-6 7-9 10 - 12 13 - 15 1-3 A B A B A B A B A B A B A B A B CH1 C CHANNEL PIN NO.
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TABLE (J51) J51 INPUT PIN NO. CONTACT 1 1 2 3 2 4 5 3 6 7 4 8 9 5 10 11 6 12 13 7 14 15 8 16 INPUT CONTACT ISOLATOR BOARD 02-810012-XX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 "NO CUSTOMER CONNECTION" 37 PS213002 Rev. 2 8. ALL WIRING MUST BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES. 7. MAXIMUM CABLE LENGTH 500 FT. (152 METERS) WITH #16AWG FLEXIBLE STRANDED CABLE. 6. SIGNAL VOLTAGE: 100mAMP @ 12VDC. 5.
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38 SITESCAN SEE DETAIL B NO CUSTOMER CONNECTION NO CUSTOMER CONNECTION TB56 COMMS BOARD 02-810015-XX TB55 TB51 J81 J1A TB55 DETAIL B 1 2 3 SEE NOTES 1 & 2 CUSTOMER SUPPLIED INTERCONNECTING CABLE TO SITESCAN PS213003 Rev. 2 6. ALL WIRING MUST BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES. J81 DETAIL A - + EXTERNAL MODEM SEE DETAIL A 5. REFER TO CONTROL CONNECTION LOCATION DIAGRAM OF STATIC TRANSFER SWITCH FOR LOCATION OF COMMS BOARD. 4.
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CUSTOMER SUPPLIED INTERCONNECTING CABLE (SEE NOTES) 39 DETAIL A RJ-11 CONNECTOR J1A MODEM LINE COMMUNICATIONS TO TELEPHONE LINE COMMS BOARD J1A PS213004 Rev. 2 SEE DETAIL A 6. ALL WIRING MUST BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES. 5. REFER TO CONTROL CONNECTION LOCATION DIAGRAM OF STATIC SWITCH FOR LOCATION OF COMMS BOARD. 4. ALL CONTROL WIRING (BY OTHERS) MUST BE RUN SEPARATE FROM POWER WIRING. CONTROL WIRING RUNS SHOULD NOT BE COMBINED IN THE SAME CONDUIT. 3.
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"NO CUSTOMER CONNECTION" "NO CUSTOMER CONNECTION" 40 CUSTOMER SUPPLIED INTERCONNECTING CABLE TO MODBUS SEE NOTE 2 + - 1 2 3 TB2 P18 NETWORK INTERFACE CARD (NIC) 416241GX RS-232 (DB9 CONNECTOR) FOR SETUP ONLY. USES STANDARD COMPUTER SERIAL PORT CABLE J3 ETHERNET NETWORK RJ-45 CONNECTOR SEE NOTES 1 & 2 PS213005 REV. 2 CUSTOMER SUPPLIED INTERCONNECTING CABLE 6. ALL WIRING MUST BE IN ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES. 5.
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UPPER HALF OF UNIT WITH DOOR OPENED FRONT VIEW LCD DISPLAY SEE DETAIL A 41 RXD GND PS213006 Rev. 1 DETAIL A DB9 CONNECTOR TXD 1 2 3 4 5 6 7 8 9 2. CONNECTOR ACCESSIBLE WITH FRONT DOOR OPENED. CONNECTOR MUST BE REMOVED PRIOR TO CLOSING DOOR. 1. RS-232 COMMUNICATION THROUGH DB9 CONNECTOR.
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42 B 14 [356] 30 [762] A 16 [406] 16 [406] 100A 250A - 600A RATING RECOMMENDED LOCATION FOR CUSTOMER CONNECTION OF INPUT POWER RACEWAY (BY OTHERS) 3 PHASE, 3 WIRE PLUS GROUND. H 6 [152] 6 [152] C 33 [830] 17 1/2 [445] D 10 [254] 12 [305] E DIMENSIONAL DATA - INCHES [mm] INPUT JUNCTION BOX D B F 32 [813] 16 3/4 [426] INPUT JUNCTION BOX G C B A POWER TERMINAL BLOCK 7/16 [11] 5/16 [8] G A G DIA.
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EVENT DISPLAY ALARM CONTROLS MIMIC 43 SILENCE CONFIG LOGS AMBIENT OVERTEMP EQUIPMENT OVERTEMP HEATSINK OVERTEMP S2 SCR OPEN S1 SCR OPEN S2 SCR SHORT SI SCR SHORT RESET ALTERNATE PREFERRED CB 2 CB 1 SOURCE XFERS -30 0 OUTPUT 70 KVA 70 KW 80 % LOAD 0 XFERS CB 5 CB 3 SOURCE 1 BYP. PROC. HELP SOURCE 2 SOURCE 1 LEADS SOURCE 2 BY 3.5 DEG. STARTUP PROC. SOURCE 2 A-B B-C C-A 195V 195V 195V 0A 0A 0A 0.0 HZ SOURCE 1 A-B B-C C-A 208V 208V 208V 200A 200A 200A 60.
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44 (B ) ~ 2 (K ) (D) ~ (C ) (A ) 1 ~ ~ (L) (F) 2 (G ) 1 (E ) (I) (H) (M) 5 3A 3 4 (N) (J ) ~ C 3 3A 4 5 2 M N 1 L G H I J K D E F GREEN GREEN GREEN YELLOW YELLOW RED GREEN GREEN YELLOW GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN A B LED S Y MB O L CB2 CLOSED CB3 CLOSED CB3A CLOSED CB4 CLOSED CB5 CLOSED ALARM PRESENT CB1 CLOSED ALARM RESET PUSHBUTTON PS211002 Rev.
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45 29.44" TYP. 6" TYP. 2.47" TYP. .625" DIA x 2 TYP. SEE HEIGHT TABLE 36.9" A BOTTOM VIEW 17.48" TYP. FRONT VIEW TOP VIEW 29.9" 2.47" TYP B 53 FT -LBS M12 - 1.75 HEIGHT 18.0" 24.0" 30.0" 36.0" P/N OF FLOOR STAND: 523401G1 523402G1 523403G1 523404G1 34.75" 16.75" 22.75" 28.75" HEIGHT MIN: PS215000 REV. NO. 0 37.25" 19.25" 25.25" 31.25" HEIGHT MAX: HEIGHT TABLE 16FT - LBS 31 FT - LBS M10 - 1.5 320 FT - LBS M8 - 1.25 1.0" NUT HARDWARE TORQUE CHART 6.
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REAR UPPER STS2 BRACKET (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 (SEE DETAIL C) FRONT UPPER STS2 BRACKET 46 INSTALLATION DRAWING FOR SEISMIC FLOOR STAND 100-250A STS2 (3 PLACES) CAP SCREW M12-1.75 x40mm SPLIT LOCK WASHER M12 FLAT WASHER M12 REAR LOWER STS2 BRACKET FIG. 3 TOP VIEW OF FLOOR STAND WITH LOWER REAR MOUNTING BRACKET FRONT REAR FIG.
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47 FIG. 3 RIGHT SIDE VIEW FIG. 1 FRONT LEFT ISOMETRIC VIEW A 2 PLACES DETAIL A PS215002 Rev. 0. LOWER FRONT BRACKET (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 (2 PLACES) CAP SCREW M10-1.5X30MM SPLIT LOCK WASHER M10 FLAT WASHER M10 FIG. 2 REAR RIGHT ISOMETRIC VIEW UPPER REAR BRACKET TABS TO SLIDE INTO LOWER REAR BRACKET SLOTS REAR LOWER STS2 BRACKET REAR UPPER STS2 BRACKET SEE DWGS PS215000, PS215001, AND PS215003 FOR DETAILS.
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77.0" FRONT VIEW 30.0" RAISED FLOOR ISOMETRIC VIEW RIGHT SIDE VIEW 32.1" PS215003 Rev. 0 SEE DWGS PS215000, PS215001, AND PS215002 FOR DETAILS.
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49 6" TYP. 29.44" TYP. .625" DIA x 2 TYP. 36.9" A BOTTOM VIEW 25.59" TYP. FRONT VIEW TOP VIEW 38" FRONT SIDE 2.47" TYP FOOT DETAIL B ALIGN FOOT PARALLEL TO MOUNTING PLATE AS SHOWN B MOUNTING PLATE 2.47" TYP SEE HEIGHT TABLE FOOT DETAIL A NUT NUT B JAM NUT ISOMETRIC VIEW #1 53 FT -LBS M12 - 1.75 HEIGHT 18.0" 24.0" 30.0" 36.0" P/N OF FLOOR STAND: 523405G1 523406G1 523407G1 523408G1 16.75" 22.75" 28.75" 374.75" PS216000 Rev.0 25.25" 31.25" 37.25" 19.
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REAR UPPER STS2 BRACKET (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 (SEE DETAIL C) FRONT UPPER STS2 BRACKET 50 REAR LOWER STS2 BRACKET FIG. 3 TOP VIEW OF FLOOR STAND WITH LOWER REAR MOUNTING BRACKET FRONT REAR (3 PLACES) CAP SCREW M12-1.75 x40mm SPLIT LOCK WASHER M12 FLAT WASHER M12 FIG.
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51 FIG. 3 RIGHT SIDE VIEW FIG. 1 FRONT LEFT ISOMETRIC VIEW A 2 PLACES DETAIL A LOWER FRONT BRACKET (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 PS216002 Rev. 0 (2 PLACES) CAP SCREW M10-1.5X30MM SPLIT LOCK WASHER M10 FLAT WASHER M10 FIG. 2 REAR RIGHT ISOMETRIC VIEW UPPER REAR BRACKET TABS TO SLIDE INTO LOWER REAR BRACKET SLOTS REAR LOWER STS2 BRACKET REAR UPPER STS2 BRACKET SEE DWGS PS216000, PS216001, AND PS216003 FOR DETAILS.
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77.0" FRONT VIEW 38" RAISED FLOOR 52 ISOMETRIC VIEW RIGHT SIDE VIEW 32.1" PS216003 Rev. 0 SEE DWGS PS216000, PS216001, AND PS216002 FOR DETAILS.
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53 29.44" TYP. 6" TYP. 2.47" TYP. SEE HEIGHT TABLE 36.9" A BOTTOM VIEW ALIGN FOOT PARALLEL TO MOUNTING PLATE AS SHOWN MOUNTING PLATE 71.55" TYP. FRONT VIEW TOP VIEW 83.9" 2.47" TYP NUT JAM NUT NUT 53 FT -LBS M12 - 1.75 18.0" 24.0" 30.0" 36.0" 523409G1 523410G1 523411G1 523412G1 HEIGHT P/N OF FLOOR STAND: 19.25" 25.25" 31.25" 37.25" 16.75" 22.75" 28.75" 34.75" HEIGHT MAX: HEIGHT MIN: HEIGHT TABLE 16FT - LBS 31 FT - LBS M10 - 1.5 320 FT - LBS 1.0" NUT M8 - 1.25 B PS217000 Rev.
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FRONT REAR REAR SIDE REAR UPPER STS2 BRACKET FRONT UPPER STS2 BRACKET FIG. 3 TOP VIEW OF FLOOR STAND WITH LOWER REAR MOUNTING BRACKET REAR LOWER STS2 BRACKET FIG. 1 BOTTOM VIEW OF STS2 WITH UPPER BRACKETS FRONT (3 PLACES) CAP SCREW M12-1.75 x40mm SPLIT LOCK WASHER M12 FLAT WASHER M12 (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 (2 PLACES) CAP SCREW M12-1.
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A 55 FIG. 3 RIGHT SIDE VIEW FIG. 1 FRONT RIGHT ISOMETRIC VIEW 4 PLACES DETAIL A LOWER FRONT BRACKET (2 PLACES) CAP SCREW M12-1.75X40MM SPLIT LOCK WASHER M12 FLAT WASHER M12 PS217002 Rev. 0 (2 PLACES) CAP SCREW M10-1.5X30MM SPLIT LOCK WASHER M10 FLAT WASHER M10 FIG. 2 REAR RIGHT ISOMETRIC VIEW UPPER REAR BRACKET TABS TO SLIDE INTO LOWER REAR BRACKET SLOTS RIGHT REAR LOWER STS2 BRACKET RIGHT REAR UPPER STS2 BRACKET NOTE: SEE DWGS PS217000, PS217002, AND PS217003 FOR DETAILS.
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77.0" 32" FRONT VIEW 84" 52" RAISED FLOOR 56 ISOMETRIC VIEW PS217003 Rev. 0 SEE DWGS PS217000, PS217001, AND PS217002 FOR DETAILS. NOTE: RIGHT SIDE VIEW 32.
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Introduction to STS2 Operations 8.0 INTRODUCTION TO STS2 OPERATIONS 8.1 System Description A STS2 provides an automatic, seamless transfer between input power sources to an output load. The STS2 monitors the input sources, to ensure each source is operating within set parameters, as well as ensure that each source is within acceptable tolerances for a transfer between sources to be completed.
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Introduction to STS2 Operations 8.1.2 Reliability and Agency Requirements The STS2 is designed for high reliability and high availability with a critical bus Mean Time Between Failure (MTBF) exceeding 1,000,000 hours.
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Introduction to STS2 Operations 8.2.4 Bypass The static transfer switch can be manually bypassed to allow the power from a source to directly flow to the output load. This bypass allows the unit’s electronics to be serviced without dangerous voltages being present. The STS2 includes key-interlocked maintenance bypass breakers that allow either input source’s electronics to be bypassed for maintenance without interruption of power to the load.
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Theory of Operation 9.0 THEORY OF OPERATION 9.1 General Description The STS2 contains all the equipment necessary to prevent an interruption in power flow to the AC load, should your primary source fail. 9.1.1 STS2 Static Transfer Switch The STS2 is a 3 pole, double-throw, solid state automatic transfer switch that is fed from two sources. The Preferred source is the input source that normally carries the load when both sources are available.
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Theory of Operation 9.1.4 Emergency Transfer To ensure that power remains connected to the load, the STS2 automatically performs an emergency transfer from one input source to the other when an outage occurs on the existing source. The automatic transfer takes place if the other source’s voltage is within acceptable limits, and regardless of the phase difference between the two sources. Emergency transfers occur with a loss of power on the output of less than 4 ms.
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Theory of Operation Hardware • The STS2 operator interface in the Color Graphical Display unit is designed to provide all of the information required to configure and monitor the unit’s operation. • The control logic performs automatic operations with minimal operator interface. • Each STS2 unit is equipped with either a color LCD touch screen or a panel of LEDs and push buttons. • The STS2 can have optional communication ports installed. See 6.0 - Options and 12.
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Theory of Operation 9.2.4 Logic Modules The logic contains three separate redundant logic modules. The modules contain the logic necessary to run the STS2 and control transfers and shunt trips under all circumstances, without any outside assistance once set-up and started properly. 9.2.5 Audible Alarm An audible alarm is installed on the control board. This alarm is triggered by an alarm condition detected on the unit.
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Operating Instructions for the Touch Screen Interface 10.0 OPERATING INSTRUCTIONS FOR THE TOUCH SCREEN INTERFACE ! CAUTION Before unit is placed into service for the first time, after equipment relocation, or after the equipment has been de-energized for an extended period of time, a thorough equipment inspection and supervised start-up by qualified personnel are strongly recommended.
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Operating Instructions for the Touch Screen Interface 10.1 Normal System Turn-On NOTE If your STS2 is connected to a PDU with a Wye configuration, enable the Wye Output Transformer before starting the system. This setting can be made from the touch screen. Refer to Wye Output Transformer on page 100 for instructions. 1. Ensure that all STS2 breakers—CB1, CB2, CB3, CB3A (if supplied), CB4, and CB5—are in the OFF position. a. Ensure that the key interlocks for CB1 and CB2 have their bolts retracted. b.
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Operating Instructions for the Touch Screen Interface 10.2 Manual Transfer / Preferred Source Selection The Source Transfer option (Source Xfers) in the touch screen menu allows you to select a preferred source. Transfers are only permitted when the voltage and current are within their proper operating range and the sources are synchronized. The Source Transfer screen indicates the synchronization between the two sources, while the voltage and frequency are displayed on the Mimic. See Figure 47.
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Operating Instructions for the Touch Screen Interface To manually select the preferred source: 1. Verify that the input breakers CB1 and CB2 are closed. 2. Select SOURCE XFERS from the menu bar. The Select Preferred Source screen is displayed in the Event Display. 3. Check the Mimic to verify that Source 1 and Source 2 input voltages are correct. 4. Select SOURCE 1 or SOURCE 2 as your preferred source.
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Operating Instructions for the Touch Screen Interface Figure 48 Gate board viewing slot locations Touch Screen Viewing Slot for the Source 1 Gate Drive Board Viewing Slot for the Source 2 Gate Drive Board GREEN LEDS ON THE GATE DRIVER BOARD ARE VIEWABLE THROUGH THIS SLOT INDICATE THAT THE STS IS ON SOURCE 1 GREEN LEDS ON THE GATE DRIVER BOARD ARE VIEWABLE THROUGH THIS SLOT INDICATE THAT THE STS IS ON SOURCE 1 GREEN LEDS ON THE GATE DRIVER BOARD ARE VIEWABLE THROUGH THIS SLOT INDICATE THAT THE STS IS ON
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Operating Instructions for the Touch Screen Interface 10.4.1 Bypass Procedures for Source 1 To bypass the switch for Source 1: NOTE If you wish to bypass the Source 1 static transfer switch but Source 2 is presently active, you must first transfer to Source 1. See Manual Transfer / Preferred Source Selection on page 66. 1. Verify Source 1 is supplying power via the Mimic. • If the Color Graphical Display is not available, check the gate driver board LEDs through the slots in the control panel.
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Operating Instructions for the Touch Screen Interface 10.4.2 Bypass Procedures for Source 2 To bypass the switch for Source 2: NOTE To bypass the Source 2 static transfer switch when Source 1 is presently active, you must first transfer to Source 2. See Manual Transfer / Preferred Source Selection on page 66. 1. Verify Source 2 is supplying power via the Mimic. • If the Color Graphical Display is not available, check the gate driver board LEDs through the slots in the control panel. See Figure 48. 2.
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Alarm and Faults 11.0 ALARM AND FAULTS Alarms and faults are events that are triggered when the operation of the static transfer switch falls outside of the defined parameters. These events can also be triggered by: user actions, such as changing configurations, clearing logs, etc.; failed components such as a fan failure, an SCR that is open or closed, etc.; and system status, such as open circuit breakers, load on alternate source, etc.
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Alarm and Faults 11.2 Event and History Logs The system tracks events through the Events Log and tracks significant events through the History Logs. These logs allow you to quickly spot trends or diagnose problems that the unit may have had. Both logs are written in nonvolatile memory. The logs can be accessed from the touch screen menu or the RS-232 port. See 13.6.2 - Logs for more instructions on viewing the logs from the touch screen.
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Alarm and Faults The History Log has the following fields: • Replay Rate — indicates how long it takes for the replay to play. Use the UP and DOWN buttons to set the time. • Status — the status of the STS2 at the point of the current frame in the replay. The History log has three statuses: Frozen, Not Frozen and Retrieving Data, please stand by. • Critical Event — The event which triggered this log to be written. The event is indicated in red on the bar graph.
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Alarm and Faults 11.4 List of Messages Table 9 lists available event messages, a definition of the event, and the functions that are activated with the event by default. The functions are indicated as follows: D — The indicated event initiates the Auto-Dial sequence through the optional modem. A — The indicated event activates the Audible alarm. F — The indicated event triggers a Freeze of the History Log. L — The indicated event Latches.
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Alarm and Faults Table 9 ID 024 Event Messages Alarm Message CB2 SHUNT TRIP FAIL Description/Cause Action CB2 shunt trip failed. D, A, E 064 HEATSINK OVERTEMP Heatsink has exceeded the recommended temperature. A, E 067 S1 UV Source 1 under voltage, fast detection. A, E 068 S1 UV (RMS) Source 1 under voltage, slow detection. L, A, E 069 S1 OV Source 1 over voltage A, E 070 S1 OF/UF Source 1 over frequency/under frequency A, E 071 S1 FAIL Source 1 failure.
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Communication Interfaces 12.0 COMMUNICATION INTERFACES The STS2 monitoring system offers several choices for communications. The RS-232 terminal port is standard on all units. The port is located inside the front door, to the left of the touch screen/LED front panel mounting as shown in Figure 29. This port is primarily used as an alternate user interface to configure, control, and diagnose the system, especially for systems that do not include the HMI touch screen.
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Communication Interfaces 12.1.1 Connecting and Using a Terminal An RS-232 connection can be used to connect the STS2 to either a terminal or a PC running terminal emulation software. If you are unsure of the cable pin out, see 15.2.10 - Terminal Port Connections. 1. Connect the terminal to the STS2 by plugging the cable from the terminal into the RS-232 port. This connection can be made at any time. 2. After making the connection, verify the communications link by pressing on the terminal keyboard.
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Communication Interfaces 12.1.2 Configuring the STS2 via the Terminal The SPT command is used to configure the systems setpoints. The SVT syntax for the setpoints consists for four parameters: SPT [group] [item] [value] where the parameters are: • SPT — is the terminal command that is used to configure setpoints. • group — the group under the setpoint command which contains the desired settings. • item — the item number within the selected group. • value — the desired value for this item.
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Communication Interfaces Value Parameter Item settings, depending on what they are, use various value types. Table 11 provides a list of the possible value types and their description. Table 11 Value types Type Definition Numeric An integer numeric value in the units indicated by the item name. For example, a System Voltage Rating of 480 would indicate 480 volts.
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Communication Interfaces Table 12 Group settings and values (continued) Group Group 3: User Settings Group 4: Event Mask Settings Item: Description Value Type Value Notes 1 SRC1 Fast Undervoltage Setpoint Integer In % of nominal below nominal 2 SRC1 Slow Undervoltage Setpoint Integer In % of nominal below nominal 3 SRC1 Slow Undervoltage Detect Delay Integer In number of lines cycles 4 SRC1 Overvoltage Setpoint Integer In % of nominal above nominal 5 SRC1 Overvoltage Detect Delay
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Communication Interfaces 12.1.3 Setting Bitpacked Options with the Terminal Five sets of options and features settings are available through the terminal to control the system operation.
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Communication Interfaces Critical Option Enabling bit0—EnableManual_IPeakReset bit1—EnableAutoRestart bit2 through bit15 - not used (set to 0) Non-Critical Option Enab bit0 — EnableAutoReXfer bit1 through bit15 — not used (set to 0) The bits are set in reverse order, from bit 15 on the left to bit 0 (zero) on the right. The bits are grouped in four sets of four bits each, as such: 0000 0000 0000 0000 |................................| bit 15.........................
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Communication Interfaces Putting the Terminal Command Together For example, a unit only has the Remote Source Selection and Dual-Output Breaker options installed. Checking the bits list under Options_1 on page 81, bits 7 and 0 each must be set to 1 to indicate that these options are installed. The bit setting is as follows, starting with bit 15 on the left and going down to bit 0: 0000 0000 1000 0001 With the bits combined in groups of four, the binary settings can be translated into hexidecimal values.
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Communication Interfaces Examples of Event Mask Settings • To latch event #001, S1 SCR SHORT, use SPT 4 1 +L. • To disable event #128, CONFIG MODIFIED, from sounding the horn, use SPT 4 100 -A. • To enable event #012, OUT VOLT SENSE FAIL, to Dial and go into the Event Log, use SPT 4 12 +D+E. • To disable all masks for event #120, INPUT CONTACT #1, use SPT 4 120 -D-L-S-E-A.
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STS2 Touch Screen Display 13.0 STS2 TOUCH SCREEN DISPLAY The STS2 can be configured with a Color Graphical LCD touch screen display that allows you to quickly check the status of the unit and identify problems. A touch screen LCD is available through the front of the STS2. This screen provides a graphical (Mimic) display of the switch’s operation, plus system information including system parameters, alarms and faults. The LCD provides a color, back-lit touch screen as a user interface.
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STS2 Touch Screen Display 13.2 Menu Overview The touch screen menu provides access to configuration settings and more device information. The CONFIG (Configuration) and LOGS menus provide multiple choices through pop-up menus. The SOURCE XFER menu selection allows you to select the preferred source. The other menu choices provide information in the display panel. The menu choices are discussed later in this manual. All programmable functions are preset at the factory to default settings.
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STS2 Touch Screen Display 13.2.1 Security Because the STS2 Color Graphical Display provides access to various configuration and monitoring choices, a password or key lockout switch may be used to protect access to certain changes, including: • • • • Change configuration settings. Clear logs. Make a source transfer. Reset an alarm. Without entering the password or enabling changes with the key lockout switch, you still can: • • • • View the display, including the mimic, status and event help. View logs.
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STS2 Touch Screen Display 13.3 Mimic Display The Mimic display provides a color diagram of the operation of the STS2. This display imitates the power flow through the static transfer switch and indicates source status, breaker status, switch status, source voltage and current readings, output power measurements, and active alarm messages. See Figure 49 on page 85. 13.4 Event Controls The STS 2 detects events when certain thresholds are passed or certain problems occur.
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STS2 Touch Screen Display To set the event masks: 1. Access the Event Mask dialog box: a. Select CONFIG. b. Select EVENT MASK from the pop-up menu. The Event Mask dialog box is displayed. See Figure 53. 2. Select the mask settings for each fault and alarm. a. Select YES to enable the setting, – or – b. Select NO to disable the setting. 3. Select SAVE to keep the settings. Figure 53 Event mask dialog box User Settings The User Settings choice allows you to adjust the user-accessible switch settings.
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STS2 Touch Screen Display Figure 54 User settings dialog box Source Set Points The Source 1/2 Set Points allows you to configure trigger points for each input source (1 or 2) for the STS2 via a keypad dialog or HI/LO dialog box. The source numbers do not designate the source as the preferred or alternate source. The numbers simply identify the input source. See 10.2 - Manual Transfer / Preferred Source Selection to set the preferred source.
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STS2 Touch Screen Display To configure the set points for each source: 1. Select SOURCE 1/2 SET POINTS from the User Settings dialog box. The Source 1/2 Set Points dialog is displayed. Figure 55 Source setpoints 2. Select 1 to configure the settings for Source 1. 3. Configure the settings using the keypad or dialog box that is displayed when you touch a button.
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STS2 Touch Screen Display 8. Select FREQUENCY TRIP POINT. A keypad is displayed. This choice verifies that the source is running at the proper frequency. This choice sets the frequency deviation in the frequency that triggers the frequency trip point alarm. The frequency deviation setting is the allowable frequency variation from nominal (60.0 or 50.0 Hz) before activating the frequency deviation alarm. The frequency setting applies to both input sources. a. Configure this setting with a range of 0.1 – 3.
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STS2 Touch Screen Display System Settings The System Settings choice under the Config menu displays another pop-up menu with three choices: • Comm Options • System Options • System ID To access the System Settings menu: 1. Select CONFIG from the menu bar. 2. Select SYSTEM SETTINGS from the Config menu. Comm Options The Comm Options dialog box allows you to configure the communications settings for the STS2. • Select COMM OPTIONS from the System Settings Menu. The Comm Options dialog box is displayed.
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STS2 Touch Screen Display Configuring the Modem The Modem dialog box allows you to configure the optional, internal modem or an external modem that is connected to the static transfer switch. Only one modem can be utilized by the STS2. The dialog box contains a series of choices that access either a keypad or a secondary dialog to configure settings. Auto dial can also be configured for the modem to be triggered by events, as set up in the Event Mask choices.
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STS2 Touch Screen Display 9. Select INIT. STRING to configure the initialization string. This string configures the parameters of the modem. • This setting only needs to be configured if an external modem is used. Check your modem’s documentation for this setting. • The string for the internal modem set by the manufacturer and does not need to be changed. 10. Select BAUD RATE to display a dialog with the baud rate choices: • For an external modem, select from 2400 bps, 9600 bps or 19200 bps.
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STS2 Touch Screen Display The delay allows you to set the number of seconds which a condition needs to persist to trigger an alarm. These input alarms can also be configured to activate a programmable relay output, which is discussed in Configuring the Programmable Relay Board Settings on page 97. To configure the Input Contact Isolator relays: 1. Select INPUT CONTACT ISOLATOR from the Comm Options menu. The Input Contact Isolator dialog box is displayed. Figure 58 Input contact isolator dialog box 2.
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STS2 Touch Screen Display Configuring the Programmable Relay Board Settings The STS2 can contain up to two Programmable Relay Boards (PRB) that can trigger an external device when an event occurs in the static transfer switch. For example, if Source 1 fails, an external light flashes. See 6.1 - Programmable Relay Board for more information on the PRBs. The Programmable Relay Board dialog box with two options: STANDARD SET and USER DEFINED SET. The STANDARD SET are the factory-configured settings.
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STS2 Touch Screen Display Figure 59 Programmable relay board dialog box 2. Select your configuration settings. • Select STANDARD SET to use the settings configured at the factory. See Go to step 4. • Select USER DEFINED SET to configure your own settings. Go to step 3. If you enter a user defined settings, this information is not saved if control power is removed. Record the settings in Programmable Relay Board Settings Record on page 139. 3. To define your relay board settings: a.
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STS2 Touch Screen Display SiteScan Configuration An optional RS-422 port, contained in the Comms Board, can be installed in the static transfer switch to provide communications with Liebert’s SiteScan. SiteScan is Liebert’s system monitoring software that allows you to utilize a PC to monitor the static transfer switch’s status and check alarms. See 6.5 - Comms Board for more information on this board.
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STS2 Touch Screen Display 4 Pole Transfer Switch This selection is set at the factory to indicate whether the system is a 3 pole or 4 pole unit. Shunt This selection is set at the factory. Wye Output Transformer The Wye Output Transformer controls the firing of the SCRs on startup, which minimizes the inrush into PDU transformers. Output breakers and PDU input breakers have to be closed when you start up the system.
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STS2 Touch Screen Display 13.6.2 Logs Two types of logs are kept by the STS2: Event Log and History Log. Event Log The Event Log tracks the alarms and faults of the STS2. See 11.0 - Alarm and Faults for more information on these events and see 11.2.1 - Event Log for more information on the Event Log and definitions of the fields displayed in the Event Log screen. Figure 61 Event log To use the Event Log: 1. 2. 3. 4. Select LOGS from the menu bar to open the Logs menu. Select EVENT LOG from the menu.
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STS2 Touch Screen Display To use the History Log: 1. Select LOGS from the menu bar to open the Logs menu. 2. Select either HISTORY LOG 1 or HISTORY LOG 2 from the menu. 3. Select the appropriate buttons to replay the log: • Select PREV to go to the previous frame in the sequence. • Select NEXT to go to the next frame in the sequence. • Move the green cursor to the location from which you would like to play the sequence of events.
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Operating the LED Display STS2 14.0 OPERATING THE LED DISPLAY STS2 Certain models of the STS2 do not include the LCD Color Graphical Display with the touch screen interface. This display is replaced by an LED front panel to allow you to monitor the unit and alert you when a problem occurs. The LED panel can be replaced with the Color Graphical Display, if desired. Instructions for using the LCD are in 13.0 - STS2 Touch Screen Display.
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Operating the LED Display STS2 14.1.2 LED and push button description The following table defines the LEDs and pushbuttons in the LED display: Table 16 Symbol LED and push button description LED Description Action A Green Source 1 power is present A green LED is lit if the Source 1 input power is present. This LED only indicates that power is present to the power supply; it does not indicate if the power is within the programmed tolerances of the unit.
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Operating the LED Display STS2 14.1.3 Event Controls When an alarm is triggered, a red LED is lit in the control panel. A pair of buttons allows you to turn off the horn and reset the alarm. 14.1.4 Key Lockout Switch An optional key lockout switch for the STS2 enables or disables all push button inputs, except for the alarm silence button. The key lockout switch is mounted on the front of the unit. See Figures 8 to 10 for the key lockout switch location on each unit.
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Operating the LED Display STS2 6. Verify that the preferred source LED (green) (LED_PREFx) is lit for the source that you want the switch to be using. 7. Verify that the green LED for the corresponding SCR (STS1 or STS2) is lit, indicating that the SCR is closed. 8. Close Output Breaker CB3 (and CB3A in a redundant output configuration). 9. Verify the CB3 LED is lit, indicating that CB3 is closed and the output and load are energized.
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Operating the LED Display STS2 14.2.3 Maintenance Bypass The STS2 is equipped with two key-interlocked, bypass breakers, CB4 and CB5, to allow manual bypass of the switch electronics for either input source in the event of switch failure or for maintenance of the switch. Refer to the static transfer switch one-line diagram (Figure 3).
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Operating the LED Display STS2 Bypass Procedures for Source 2 If transfer to Source 1 is not desired: 1. Follow the instructions to transfer the load to Source 2, if it is not the currently used source. 2. Remove the interlock key from CB4 and place it in CB5 interlock. 3. Open the alternate source input breaker CB1. The LED for CB1 is turned off. 4. Rotate and remove the interlock key. 5.
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Operating the LED Display STS2 14.2.4 Normal System Shutdown The STS2 can be shut down from either the static switch mode or the bypass mode. Shutdown in Static Transfer Switch Mode When the Static Transfer Switch is operating on static transfer switch mode (not maintenance bypass mode): 1. Turn off the load equipment per manufacturer’s recommendations. 2. Open CB3 to turn off the static switch output. • Open CB3A if the static transfer switch is a redundant output configuration.
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Specifications 15.0 SPECIFICATIONS This section provides the specifications for the STS2. 15.1 System Configuration The STS2 can be set in several different configurations, according to the model and location. The configuration is set at the factory and does not need to be changed by the customer. These configurations apply to both units, the Color Graphical Display and an LED Display. 15.1.1 Frequency The STS2 accepts input frequencies of 50 Hz and 60 Hz. The frequency shall be within +/- 0.
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Specifications 15.1.4 Grounding Refer to 5.3 - System Grounding for specifications and instructions regarding grounding. 15.1.5 Electrical Requirements Table 19 Electrical Requirements Item Requirement Maximum Continuous Current 100, 250, 400, 600, 800, 1000 amps Load Power Factor Range 0.75 to 1.0, leading or lagging Load Crest Factor Up to 3.
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Specifications 15.2 System Components All STS2 models provide two static transfer switches within one enclosure, with the ability to transfer between two input sources to a single output. All STS2s are configured with either an LCD Color Graphical Interface touch screen display or LEDs for monitoring and configuring the unit. This section lists the common components and the differences for both types of units. 15.2.1 Frame and Enclosure The complete STS2 is housed in a freestanding enclosure.
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Specifications 15.2.4 Access The STS2 is designed so all repairs and maintenance can be done from the front or top of the unit. All components that may need repair or replacement during routine field maintenance are safely accessed with the units in bypass without removing power from the unit.
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Specifications 15.2.9 RS-232 Port The unit is equipped with an RS-232 port for connecting a terminal or PC. See Figure 29 for the port’s location. See 12.1 - Using the RS-232 Port for instructions on using a PC terminal with the unit. 15.2.10Terminal Port Connections The system has an asynchronous serial port configured as Data Terminal Equipment for terminal access only (half duplex). The CPU services the terminal port with no handshaking.
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Specifications 15.2.11RS-232 Interface Parameters The service terminal interface parameters are the following settings and cannot be changed. Table 24 RS-232 Settings Parameter Setting Interface RS-232 Using EIA Voltage Levels Baud Rate 9600 Parity None Number of Data Bits 8 Number of Stop Bits 1 Hardware Flow Control Off Terminator Handshaking Not supported Structure Full duplex Local Echo Off 15.2.
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Event Message Help Text 16.0 EVENT MESSAGE HELP TEXT Key: ALL CAPS = event message displayed in the Event Display panel in the lower left corner of the LCD display. Indented text = help text shown in the Display Panel in the lower right corner of LCD display. BOLD = commands that are sent through the RS-232 port. S1 SCR SHORT Source 1 SCR Short. One or more of the SCRs for Source 1 has shorted. Transferring between sources has been inhibited.
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Event Message Help Text S2 SCR OPEN Source 2 SCR Open. One or more SCRs on Source 2 is open. Transferring between sources has been inhibited. STS2 output has been transferred to Source 1. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378). Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
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Event Message Help Text PWR SPLY DC A FAIL Power Supply DC Bus A Failed The primary power supply is no longer providing DC power to the control board and the touch screen. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378). Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. This event was written to the Event Log, if so configured.
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Event Message Help Text PWR SPLY S2 AC FAIL Power Supply Source 2 AC Failed The AC input power to the power supplies from Source 2 has failed. The power supplies are now operating on AC power from Source 1. The AC input from Source 2 is still good. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378). Press SILENCE on the touch screen to turn off the audible alarm, if so configured.
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Event Message Help Text S1 VOLT SENSE FAIL Source 1 Voltage Sense Module Failed The module contained on the snubber monitoring the input voltage from Source 1 has failed. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378). This event was written to the Event Log, if so configured.
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Event Message Help Text S2 SCR SENSE FAIL Source 2 SCR Sense Module Failed The module contained on the snubber monitoring the SCRs for Source 2 has failed. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378). This event was written to the Event Log, if so configured.
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Event Message Help Text S2 GATE DRIVE FAIL Source 1 Gate Drive Failure The gate drive module for an SCR for Source 2 has failed. This module is contained on the left side gate driver board. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378).
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Event Message Help Text CB1 SHUNT TRIP FAIL Circuit Breaker 1 Shunt Trip Failure Circuit Breaker 1 failed to trip open when the control issued a command for the circuit breaker to trip. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. Contact Liebert for technical support at 1-800-LIEBERT (800-543-2378).
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Event Message Help Text S1 UV Source 1 Under Voltage (fast detection). The input voltage from Source 1 dropped below a set percentage of the nominal voltage, as set in the Fast UV set point under the User Settings. An S1 Fail alarm was also issued and source transfer has been inhibited. The load of the STS2 has been transferred to Source 2. Press SILENCE on the touch screen to turn off the audible alarm, if so configured.
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Event Message Help Text S1 OF/UF Source 1 Over Frequency/Under Frequency The frequency for Source 1 is running outside the acceptable operating range, as set in the Frequency Trip Point under User Settings. An S1 Fail alarm was also issued and source transfer has been inhibited. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
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Event Message Help Text S2 UV (RMS) Source 2 Under Voltage (slow detection). The input voltage from Source 2 remained below a set percentage of the nominal voltage for a designated period, as set in the Slow UV Setting and Slow UV Detection Delay set points configured under the User Settings. An S2 Fail alarm was also issued and source transfer has been inhibited. The load of the STS2 has been transferred to Source 1. Press SILENCE on the touch screen to turn off the audible alarm, if so configured.
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Event Message Help Text S2 FAIL Source 2 Failure Source 2 has failed due to under voltage (UV), over voltage (OV), or running with an over or under frequency (OF/UF). This alarm is a companion to S2 UV, S2 UV (RMS), S2 OV and S2 OF/UF. The load of the STS2 has been transferred to Source 1. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
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Event Message Help Text S1 I-PEAK Current Peak on Source 1 The peak current from Source 1 has exceeded the set point as defined in the I-PK Xfer Lockout setting under User Settings. Transferring to Source 2 has been inhibited. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
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Event Message Help Text LOAD ON ALT SOURCE STS2 load on the alternate source. The static transfer switch is running on the alternate power source. Check the Event Log to determine the reason for the transfer from the preferred source. Another event has caused the system to transfer to the alternate source. The system returns the load to the preferred source either automatically or manually, depending on how the system is configured.
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Event Message Help Text CB2 (S2) OPEN Circuit Breaker 2 (for Source 2) Open Circuit Breaker 2 is not closed. CB1 is only assigned to Source 2. Check that the Circuit Breaker 2 switch is in the desired position. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. This event was written to the Event Log, if so configured.
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Event Message Help Text CB3A (OUTPUT) OPEN Circuit Breaker 3A (Output breaker) is Open (Optional) Circuit breaker 3A is not closed. This circuit breaker is assigned to the output load. The power flow to the load cannot flow through the static transfer switch. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
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Event Message Help Text TRANSFER INHIBITED Transfer Inhibited Uninterrupted transfer between sources is inhibited due to input source failure, sources out of sync, switch failure, or the unit is in bypass mode. Check the Event Log for the event or events that may have caused the alarm. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm.
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Event Message Help Text INPUT CONTACT #2 Input Contact Isolator #2 Occurrence of the indicated external event has been detected by Input Contact Isolator #2 of the Open Comms Digital Input option board. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. The event, with its assigned name, was written to the Event Log, if so configured.
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Event Message Help Text INPUT CONTACT #6 Input Contact Isolator #6 Occurrence of the indicated external event has been detected by Input Contact Isolator #6 of the Open Comms Digital Input option board. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. The event, with its assigned name, was written to the Event Log, if so configured.
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Event Message Help Text CONFIG MODIFIED Configuration Modified A set point has been updated and saved. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. The event was written to the Event Log, if so configured. The alarm has triggered a message to be sent to the modem, if so configured.
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Event Message Help Text EVENT LOG CLEARED Event Log Cleared All past alarms and faults are no longer recorded in the system’s event log. Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2 system from a terminal, type SH and press RETURN on your keyboard to turn off the audible alarm. This event was written to the Event Log, if so configured. The alarm has triggered a message to be sent to the modem, if so configured.
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Maintenance 17.0 MAINTENANCE ! WARNING Only qualified service personnel should perform maintenance on the static switch. Lethal voltages exist inside the unit during normal operation. The unit is supplied by multiple ac power sources. disconnect and lock-out all power sources before working inside unit. Minimal periodic maintenance of the STS2 is required.
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Maintenance SUPPORT INFORMATION To contact Liebert Global Services for information or repair service in the United States, call 1-800-LIEBERT (1-800-543-2378). Liebert Global Services is available to assure fast repair of your unit with minimal downtime. Liebert Global Services offers a complete range of start-up services, repair services, preventive maintenance plans, and service contracts.
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Maintenance PROGRAMMABLE RELAY BOARD SETTINGS RECORD The optional Programmable Relay Board (PRB) has eight channels to report events to an external device. Up to ten (10) events can be programmed to each channel. See 6.1 - Programmable Relay Board for more information on the PRB. If your STS2 has the PRB option installed, list the settings below for future reference. If control power is lost in the STS2, the settings are not saved.
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Maintenance Channel 8: Channel 9: Channel 10: PRB Notes: 140
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Maintenance INPUT CONTACT ISOLATOR SETTINGS RECORD The Input Contact Isolator board (ICI) provides an STS2 module interface for up to eight external user alarm or message inputs to be routed through the static transfer switch’s alarm network. See 6.4 - Input Contact Isolator Board for more information on the ICI. If your STS2 has the ICI option installed, list the settings below for future reference. If control power is lost in the STS2, the settings are not saved.
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Maintenance 142
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POWER PROTECTION STATIC TRANSFER SWITCH 2 The Company Behind the Products With over a million installations around the globe, Liebert is the world leader in computer protection systems.