CONTENTS SECTION 1 – INTRODUCTION Page 4 About this manual Page 4 System design and planning Page 4 Panel types Page 4 General SECTION 2 – INSTALLATION Page 4 – 5 Page 5 General Page 5 ESD Precaution Page 6 Cable Types and Limitations Page 6 Mains Wiring Page 6 Planning the Cable Layout in the Panel Page 7 Fixing the Cabinet Page 7 Additional Zone Cards Page 8 Mains Connections Page 8 Circuit descriptions and wiring details Page 9 Main control pcb (PCENV-M-5) Page 9 Single zo
CONTENTS SECTION 4 – COMMISSIONING Page 17 General Page 17 Powering the Panel Page 17 Connecting the Battery Page 17 Disposal of Batteries Page 17 Initialisation of Zone Cards Page 18 Twin Wire Operation Page 19 Zone Circuits Page 20 Sounder Circuits Page 20 Three Wire Circuits (budget pcb only) Page 20 SECTION 5 – FAULT FINDING Page 21 General Page 21 Fault Latch Page 21 Fault Finding Chart Page 22 SECTION 6 – TECHNICAL DATA Page 23 – 24 SECTION 7 – NETWORKING Page 25 Networ
SECTION 1 – INTRODUCTION About This Manual This manual is intended as a complete guide to the 1 to 4 zone range of conventional Surveyor ENVOY fire alarm control panels. Installation instructions are provided in the first part of the manual with the following sections dealing with commissioning, full technical details and operating procedures. A separate Log Book is also provided.
General – Continued The control panels are compatible with a wide range of detection and alarm devices. Refer to technical specification for details. The panel can be, CONVENTIONAL with separate detection and alarm circuits or “TWIN-WIRE“, with detectors and sounders on the same circuits. This is selectable internally and can be set differently for each zone if using the hy-spec single zone extension cards.
ESD PRECAUTION Electronic components are vulnerable to damage by Electrostatic Discharges (ESD). An ESD wrist strap, suitably grounded, should be worn at all times when handling pcbs. These wrist straps are designed to prevent the build up of static charges, not only within a persons body, but on many other materials. ESD damage is not always evident immediately, faults can manifest themselves at anytime in the future.
Planning the Cable Layout in the Panel The detector and sounder circuit cabling is classed as extra low voltage and must be segregated away from mains voltages. Careful planning is needed to ensure this, refer to Figure 1 (below) for guidance and important information on how to remove the panel’s knockouts. Always ensure that if a knockout is removed, the hole is filled with a good quality cable gland. Any unused knockouts must be securely blanked off.
Additional Zone Cards If fitting additional zone cards to the extendable version of the ENVOY control panel, first refit the main circuit board. Slide additional cards into position using the locating pins, see figure.3. Particular attention must be made to ensuring that the pins are located correctly in the connector. Misalignment of these pins will result in damage to the zone card when the panel is powered up, see figure.4. Fix the card into position using clips and self tapping screws provided.
Circuit Descriptions and Wiring Details MAIN CONTROL PCB (PCENV-M-5) SNDR 1 & 2 2 conventional monitored sounder circuits, 28vdc reverse polarity monitored, 4K7 end of line. SNDR 1 can be selected to function as a “TWIN-WIRE” zone via SW5 on DIL switches. Both circuits fused at 500mA. Maximum panel sounder load 1 Amp. ZONE 1 Conventional 2 wire zone with in built detector removal monitoring. Can be used with zener diode type bases by via SW3 on DIL switches. Maximum detector load 3mA.
WARNING:- Not all makes of detectors and call points etc are suitable for this panel, see page 24 for recommended equipment Drawing No.
WARNING:- Specific detectors and call points etc must be used with “TWIN-WIRE“ systems, see page 24 for details Drawing No.
WARNING:- Not all makes of detectors and call points etc are suitable for this panel, see page 24 for recommended equipment Drawing No. S1599, showing general wiring schematic for PCENV-3Z-5, including 3 wire connection A typical 3 wire circuit is shown on Dwg No. S1599, connected into zone 2. This method of wiring does not meet current standards for new systems, but may be suitable for upgrading certain existing installations.
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Drawing S1601, showing detector base connections Envoy Installation, Commissioning & Operating Manual 14
SECTION 3 – ENGINEERING OPTIONS General The panel has various options which are programed by the selection of DIL switches on the PCBs. This section explains which switch relates to which option. PCENV-M-5 (Master PCB) Switch Function when ‘off’ Function when ‘on’ 1 Zone 1 latching Zone 1 non latching 2 Short circuit = fault, zone 1 Short circuit = fire, zone 1 3 Detector removal, standard Schottky diode Zener diode head removal base 4 Rem.
Engineering Options Continued PCENV-1Z-5 (hy-spec single zone card) Switch Function when ‘off’ Function when ‘on’ 1 Zone latching Zone non latching 2 Short circuit = fault Short circuit = fire 3 Detector removal, standard Schottky diode base Zener diode head removal 4 Zone operates all aux relays Zone operates own aux relay only 5 Conventional operation Twin wire operation, use SNDR CCT PCENV-3Z-5 (Three zone budget zone card) Switch Function when ‘off’ Function when ‘on’ 1 Zone 2 la
SECTION 4 – COMMISSIONING General The commissioning procedures should be completed one step at a time as described below to avoid unnecessary problems. By following a logical sequence any faults that may occur can be quickly identified and rectified before moving on to the next step. Before connecting external circuits to the control panel it is recommended that the panel is powered up and tested, and any faults cleared before proceeding.
Initialisation of Zone Cards For added security, the master card (PCENV-M-5) keeps a log of fitted zone cards and will indicate a system fault, with a warbling tone, if zone cards are removed, or cease to function. To achieve this, zone cards are logged ‘on’ and ‘off’ of the panel. Proceed as follow: 1 Ensure panel is completely powered down by disconnecting both mains and battery supplies. 2 Insert, or remove, required zone card(s), ensuring pins are securely located. 3 Press and hold button No.
Twin Wire Operation The panel can be converted to ‘Twin Wire’ operation by selecting Dil switch 5 on each zone card (hyspec zone cards only). Any individual zone, or all zones , can be selected as twin wire. The twin wire is designed to operate with polarised 470R call points, Apollo and Hochiki ‘SAV-WIRE’ bases only. See page 24 for part No.s. Any standard 24v bell, siren or strobe, that is polarised and suppressed can be used, providing sounder o/p limits are not exceeded.
Zone Circuits The default mode of operation assumes that the zone circuit is configured for open and short circuit fault monitoring, and detector removal monitoring, i.e. detector bases are fitted with a diode. If these conditions do not apply, e.g. when connecting a circuit from an existing system, the operating parameters for each affected zone must be changed. Refer to the Engineering Options section for details.
SECTION 5 – FAULT FINDING General A fault is indicated by the illumination of the SYSTEM FAULT LEDs and a buzzer tone. Specific faults are identified by additional fascia indicators, e.g. zone fault. The buzzer tone varies depending on the fault and may, or may not, be silenceable. Fault Latch If an intermittent fault exists it is possible to make all fault indications latch to help identify problems. To activate fault latch press the TEST MODE button and then the ENTER button.
Fault Finding Chart The following chart identifies the indications that may be displayed, with the possible cause and the recommended action. Fault location should be tackled logically by isolating fault paths until the source is apparent, e.g. disconnecting zone and sounder circuits to prove if the fault is on the circuit or in the panel, etc. Faults on external circuits can be traced by breaking down the circuit, e.g. placing the EOL at the mid point of the circuit and determining which half is affected.
SECTION 6 – TECHNICAL DATA • • • • Mains input voltage ; 230Vac, 50-60 Hz (Harmonised) +10% to -15% compliant with BSEN54 Pt4 : 1997 for fire alarm power supplies. Nominal system voltage 24V dc. Power supply : Current limited 1amp suits SLA batteries only. Charging voltage 27.6 volts +/0.2V Temperature range: -5 to +40oC.
Technical Data Continued Detector Zones: Voltage 17 – 28V dc. Quiescent current 3.5mA each. End of line value 4K7 Ohm. Schottky diode or zener clamp detector removal monitoring. Sounder Circuits: 17 – 28V dc reverse polarity monitored. Sounders must be polarised and suppressed. End of line value 4K7 Ohm. Output current 500mA. Maximum shared sounder load 1.0 amp. Fuses: Mains: F2AH, 250VAC, 20mm HBC Ceramic.
SECTION 7 – NETWORKING A feature of the Envoy is the ability to provide 2 wire (RS 485) communications for repeating and networking capability. All standard panels of verion 5.0 and above can be networked. The PCENV-NET is an ‘add-on’ card which provides the RS 485 interface and address switches. A PCENV-NET is required for each panel in the network. Up to four panels can be networked.
Set Up Network Once all cards are fitted , set Dil switch addresses on PCENV-NET. Designate one panel as the ‘master’ Dil switch positions:Both off 1 off 2 on 1 on 2 off 1 on 2 on = = = = Master First repeater / panel Second repeater / panel Third repeater / panel Each panel must have a different setting. For monitoring purposes, the master must be instructed how many panels are in the network. If it changes, the panel will show system fault and will warble.
Network Control and Operation Cont’d Indications Common fire Common fault Zones 1 – 4 = = = Global fire indication Global fault indication Global zone indication All other indications work at the local level Option Switches As a rule, all option switches function at the local level only, e.g. if on panel A the option switch No. 8 (zonal bells) is selected ‘on’, this will cause sounders on panel B, C & D to pulse when the fire is on either B, C or D panels.
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Drawing No.
SECTION 8 – OPERATOR INSTRUCTIONS Controls and Indications SEE TABLE 1 Buttons on keypad will not operate unless the Activate Controls key-switch is in the ON position.
Controls and Indications Continued TABLE 1 A SUPPLY HEALTHY Indicates permanently when panel is correctly powered. B TEST MODE Pulses when the control panel is in engineer’s test mode. The individual circuit fault lamp will be on (steady) whilst the circuit is in test mode. It is not possible to test a disabled zone. See page 33 “Test Mode” for more details. C DISABLED Indicates when a zone or sounder circuit has been disabled using the disable button on the keypad.
Controls and Indications Continued TABLE 2 P TEST MODE “Test mode” button. Puts zones into test mode. See relevant section, page 33. Q DISABLE “Disable” button. To disable or isolate zones or sounder circuits. See relevant section, page 34. R TEST LEDs Pressing this button will cause all LEDs, except remote fire and fault, to illuminate briefly. S ENTER “Enter” button. Used to acknowledge selection of zone or sounder circuits for disablement. Also mutes internal fault buzzer when active.
Test Mode ZONE TEST To put zone(s) into test mode, turn the Activate Controls key-switch to the ON position and press the TEST MODE button on the keypad. Now use buttons 1 – 4 to select which zone(s) to put into test mode and press ENTER when all selections have been made. The test mode entry will “time out” within 5 seconds if the ENTER button is not pressed. It is possible to have any or all zones in test mode at the same time. The Test Mode and Common Fault LEDs will be pulsing.
Disable Zones or Sounders DISABLE ZONES To disable / isolate zones , turn the Activate Controls key-switch to the ON position and press the DISABLE button on the keypad Now use buttons 1 – 4 to select which zone(s) to disable and then press ENTER when all selections have been made. The disable mode will “time out” within 5 seconds if the ENTER button is not pressed. It is possible to select any, or all zones, to be isolated at the same time.
Routine Maintenance and Testing It is essential that the fire alarm installation is checked regularly by a responsible person for correct operation in accordance with EN54 Part 2 or BS5839 Part 1. or applicable standard. CLEANING The exterior of the cabinet may be cleaned when required using a clean, moistened cloth. Do not use solvents or abrasives as these will damage the panel. ROUTINE TESTING Routine checks should be carried out as detailed in this section of the manual.
USER INSTRUCTIONS Alarm Condition If all the sounders or bells are ringing, the system is in an alarm condition. YOU MUST EVACUATE THE BUILDING OR FOLLOW YOUR NORMAL FIRE DRILL PROCEDURES. A responsible person should then:1 2 3 4 Check the control panel to see which area or zone has caused the system to go into alarm. The zone in alarm will be indicated by a red light on the front of the control panel, see fig 1. Go to the area which has caused the alarm to check if a fire exists.
