EPM 3000P THREE-PHASE DIGITAL VOLT/AMPS MONITOR EPM 3000P –F THREE-PHASE VOLTS/AMPS/FREQUENCY MONITOR Instruction Manual g GE Industrial System NORTH AMERICA GE Industrial Systems, 41 Woodford Avenue, Plainville, CT 06062 Internet: http: www.geindustrial.
All Rights Reserved. Printed in the United States of America. NORTH AMERICA GE Industrial Systems, 41 Woodford Avenue, Plainville, CT 06062 Internet: http: www.geindustrial.
Customer Service and Support Customer service and support is available 24 hours a day, 7 days a week. Please have the model, serial number and a detailed problem description available. If the problem concerns a particular reading, please have all meter readings available. For customer or technical assistance, call: 1-888-GE4SERVICE (1-888-434-7378).
TABLE OF CONTENTS INSTALLATION & OPERATION CHAPTER 1 MECHANICAL INSTALLATION CHAPTER 2 Installation of the EPM3000P with K-110 Option for limited space conditions Standard Installation of the EPM3000P Standard Cutout of EPM3000P Communication Converter Installation or DC Output ELECTRICAL INSTALLATION Section 2.1 2.2 2.3 2.4 2.
TABLE OF CONTENTS PROGRAMMING CHAPTER 5 Section 5.1 5.2 5.3 5.4 CHAPTER 6 GENERAL PROCEDURE OVERVIEW 19 How to Use This Portion of the Manual Switch Packs Programming Mode Entry Standard Numeric Data Entry 19 19 20 20 ENTERING THE PROGRAMMING MODE 21 Section 6.1 Checksum Error - Protective Mechanism 6.2 Password Entry CHAPTER 7 Section 7.1 7.2 7.3 7.4 7.5 7.
INSTALLATION & OPERATION CHAPTER 1 MECHANICAL INSTALLATION The following diagrams display the various possible EPM3000P and EPM3000P-F mechanical installations and Communication Converter installation. All illustrations are of the EPM3000P with notes on the F Model. NOTE: ALL MEASUREMENTS ARE IN INCHES. 36" CABLE 3.00 0.80 AC VOLTS A B C A B C N N N B C A 4.50 SQ. AC AMPS A B C N MAX MIN MAX/MIN PRINT LIMITS PROG LM1 VOLTS AMPS 0.336 LM2 2.45 PHASE 2.425 NEXT 4.
Chapter 1 Mechanical Installation SIDE VIEW (4) 8-32 SCREWS FIRST PUT (16) PIN CONNECTOR TOGETHER. 0.80 (2) 8-32 SCREWS WILL LINE UP WITH 2 PEMS ON THE BACK PLATE. RECOMMENDED CUTOUT 0.198 DIA. 1.6875 4.0 DIA. 3.375 1.6875 3.375 BACK VIEW Diagram 1.3 Standard cutout for EPM3000P. W Port Diagram 1.4 Optional Communication Converter or DC Output Module Installation NOTE: CAREFULLY LINE UP THE GUIDE SCREW AND 8 PIN PORT CONNECTOR TO PREVENT PINS FROM BREAKING.
CHAPTER 2 ELECTRICAL INSTALLATION 2.1 CONNECTING THE CURRENT CIRCUIT The cable used for the current should be installed at 600V AC minimum. The cable connector should be rated at 6 Amps or greater, and it should have a cross-sectional area of 16 AWG. The current transformers should be mounted as close as possible to the meter. The following table gives the maximum recommended distances for various CT sizes, assuming the connection is made via 16 AWG cable.
Chapter 2 Electrical Installation 2.5 ELECTRICAL CONNECTION INSTALLATION Choose the diagram that best suits your application and maintain the polarity. Follow the outlined procedure to verify correct connection. NOTE: THE NEUTRAL READING IS CALCULATED FROM THE SUM OF THE 3 PHASES OF CURRENT. HIGH NEUTRAL CURRENT INDICATES REVERSE CT POLARITY. LISTING OF CONNECTION DIAGRAMS NOTE: SEE PHASE REVERSAL IF A MESSAGE OF PH APPEARS AFTER INSTALLATION.
Chapter 2 Electrical Installation A LINE B BACK VIEW C 7 8 9 10 11 12 13 6 PORT 5 4 3 CONTROL LOAD POWER + 2 L1 - 1 L 3-PHASE, 3-WIRE DELTA WITH DIRECT VOLTAGE AND CTs I. Three Phase System A LINE B BACK VIEW C 7 8 9 10 11 12 13 6 5 PORT 4 3 CONTROL LOAD + 2 L1 - 1L POWER 3-PHASE, 3-WIRE OPEN DELTA WITH 2 CTs AND 2 PTs II. Open Delta PT Connection Special programming required.
Chapter 2 Electrical Installation A LINE B BACK VIEW C 7 8 10 11 9 12 13 6 PORT 5 4 3 + 2 L1 - 1L POWER LOAD 3-PHASE, 3-WIRE OPEN DELTA WITH 3 CTs AND 2 PTs III. Open Delta PT Connection N LINE A B Special programming required. BACK VIEW C 7 8 9 10 11 12 13 6 5 PORT 4 3 CONTROL LOAD POWER + 2 L1 - 1 L 3-PHASE, 4-WIRE WYE WITH DIRECT VOLTAGE AND CTs IV.
Chapter 2 Electrical Installation LINE N A B BACK VIEW C 7 8 9 10 11 12 13 6 PORT 5 4 3 + 2 L2 - 1 L1 POWER LOAD 3-PHASE, 4-WIRE WYE WITH CTs AND PTs V. Three Phase System Wye System with PTs LINE A BACK VIEW 7 8 9 10 11 12 13 6 5 PORT 4 3 LOAD POWER + 2 L2 - 1 L1 SINGLE-PHASE WITH CT AND PT CONNECTION VI.
Chapter 2 Electrical Installation LINE N A BACK VIEW B 7 8 9 10 11 12 13 6 5 PORT 4 3 POWER LOAD + 2 L2 - 1 L1 DUAL-PHASE WITH CTs AND Direct Voltage VII. Dual-Phase System 2.6 RELAYS AND PROTECTION NOTE: THIS SECTION IS APPLICABLE ONLY IF THE -NL RELAY OPTION WAS ORDERED. The EPM3000P allows the user to access a variety of relay options through the programming mode. The relay option package consists of two relays, which can be dedicated to alarm or communication (or both).
Chapter 2 Electrical Installation Figure 2.1 - Relay Connection Close-up of the relays on the rear panel. The relays shown are in the NOT energized state. (Form C relays, rated 250V, 5A, 2 each) 20 N.O. 21 N.C. 22 COM 23 N.O. 24 N.C.
CHAPTER 3 COMMUNICATION INSTALLATION 3.1 RS-232C All EPM3000P and EPM300P-F instruments can be equipped with: the EIA RS-232C or the EIA RS-485. RS-232C communication links a single instrument with a computer or device such as an RTU or PLC. Its capability is up to 100 feet. A standard 9-pin female serial port connector mounts on the instrument for direct connection to a computer with a 9-pin cable. NOTE: ONLY THREE PINS ARE USED IN RS-232C. (See Figure 3.1).
Chapter 3 Communication Installation RS-485 is used to parallel multiple instruments on the same link. Its operating capability is up to 4000 feet. • When only 2 wires are used (on the RS-485), the link can include up to 30 instruments, (Figure 3.2). • When using all 4 wires, the link can include up to 60 instruments, (Figure 3.3).
Chapter 3 Communication Installation RS-485 Hookup Diagram (2 wire) Half Duplex: Detail View RS-485 Communications Port RS-485 Communications Port Model# SF485DB Model# SF485DB G R+ T+ R- T- G R+ T+ R- T- RT RS-485 RS-232 TRT+ R+ Gnd UNICOM 2500 (Bottom View Shown) Figure 3.3 2-Wire RS-485 Communication Connection Installation Half Duplex Detailed View NOTE: Communication is supported over Belden 3074F and Belden 9841 cable types.
CHAPTER 4 EPM3000P OVERVIEW The EPM3000P and EPM3000P-F measure 10 electrical parameters. Values for each parameter are accessed through the keypad on the meter's front panel (See Figure 4.1). The meters illustrated throughout the manual are EPM3000P except for Figure 4.1 below. The EPM3000P-F (Frequency Option) displays the Frequency measurement on the face of the meter. Max, Min and Limits indicators are on the left side of the face.
Chapter 4 EPM3000P Overview 4.2 RESETTING VALUES FROM OPERATING MODE Use the reset function if a new value is desired. It is available in two different modes: 1. UNPROTECTED MODE: allows quick and easy resetting of max/min values. 2. PROTECTED MODE: prevents unauthorized personnel from resetting the max/min. UNPROTECTED RESET MAX AC AMPS A B C N MIN MAX/MIN LIMITS PRINT PROG LM1 VOLTS AMPS LM2 MAX PHASE NEXT AC AMPS A B C N MIN MAX/MIN LIMITS Step 1: a.
Chapter 4 EPM3000P Overview MAX 005 PRINT PROG VOLTS LM1 AMPS MAX LM2 Step 3: a. Press PHASE/NEXT each time the appropriate password number appears. 4.3 MIN MAX/MIN LIMITS PHASE NEXT AC VOLTS ABCA B C I I I I I I NNNB C A AC AMPS A B C N __ _ AC AMPS A B C N MIN MAX/MIN LIMITS __ AC VOLTS ABCA B C I I I I I I NNNB C A LM1 PRINT PROG VOLTS AMPS LM2 PHASE NEXT Step 4: ÖUpon entering the correct password, the display blanks and a checkmark appears, confirming successful reset.
Chapter 4 EPM3000P Overview MAX MIN ph i000 MAX/MIN LIMITS PRINT PROG VOLTS AC VOLTS ABCA B C I I I I I I NNNB C A AC VOLTS ABC A B C I I I I I I NNNB C A AC AMPS A B C N AC AMPS A B C N LM1 AMPS LM2 MAX 0 MIN MAX/MIN LIMITS PHASE NEXT Step 1: a. Press AMPS and PHASE/NEXT simultaneously to access the display. PRINT PROG VOLTS LM1 AMPS LM2 PHASE NEXT Step 2: a. Press PHASE/NEXT to select zero. NOTE: PH INDICATES BOTH VOLTAGE PHASE REVERSALS AND VOLTAGE PHASE IMBALANCES.
Chapter 4 EPM3000P Overview ÖTo PRINT THE OPERATING DATA, follow these steps: MAX MIN i20 i000 MAX/MIN LIMITS PRINT PROG VOLTS AC VOLTS ABCA B C I I I I I I NNNB C A AC VOLTS ABCA B C I I I I I I NNNB C A AC VOLTS ABCA B C I I I I I I NNNB C A AC AMPS A B C N AC AMPS A B C N AC AMPS A B C N LM1 AMPS LM2 MAX PHASE NEXT MAX/MIN LIMITS Step 1: a. Press PRINT/PROG to begin the special printing sequence.
Chapter 4 EPM3000P Overview 4.7 LED TEST FROM OPERATING MODE The EPM3000P is equipped with an LED test to check if the LEDs and annunciators are functioning properly. MAX i i9. ! 300.0 MIN MAX/MIN LIMITS PRINT PROG VOLTS AC VOLTS ABCA B C I I I I I I NNNB C A AC VOLTS ABCA B C I I I I I I NNNB C A AC AMPS A B C N AC AMPS A B C N LM2 LM1 AMPS MAX PHASE NEXT MIN MAX/MIN LIMITS Step 1: a. Press PRINT/PROG to enter the Access Mode.
PROGRAMMING YOUR EPM3000P CHAPTER 5 GENERAL PROCEDURE OVERVIEW 5.1 HOW TO USE THIS PORTION OF THE MANUAL This manual contains programming for basic operation, available options and parameters. Using the Table of Contents or “Quick Reference Guide”, find the programming feature location and read that chapter. Programming tasks are arranged into nine major GROUPS. Within each GROUP are the specific meter FUNCTIONS. Outlined is the general approach to alter programming mode values. 1. 2. 3. 4. 5.
Chapter 5 General Procedure Overview 5.3 PROGRAMMING MODE ENTRY M AX /M IN P R IN T LIM ITS U S ED VO LTS PROG FO R FUNCTION ADVANCE PRINT/PROG CHANGE VALUE STORE 5.4 PHASE NEXT P R O G R A M M IN G BUTTON MAX/MIN/LIMITS VOLTS AMPS U S ED FO R P A S SW O R D E N TR Y DESCRIPTION Scrolls groups, functions, and advances to exit point from function and group level. Scrolls packs, digit counters, and changes Switch PACK position UP or DOWN.
CHAPTER 6 ENTERING THE PROGRAMMING MODE 6.1 CHECKSUM ERROR - PROTECTIVE MECHANISM If the control power is interrupted while in Programming Mode or the user does not fully exit, the meter enters a checksum mode. The display blanks, except for the max LED. Press PRINT/PROG for several seconds and the unit recovers. Follow the procedure to enter the Programming Mode to check program data, then exit. 6.2 PASSWORD ENTRY The EPM3000P is password protected.
CHAPTER 7 PROGRAMMING GROUP 0: GLOBAL METER SETUP The Global Meter Setup includes Functions 0 through 5 that control configuration and basic operation. Below is an outline of GROUP 0 to assist in locating a feature. FUNCTION 3 System Configuration contains Switch PACKS with various options, including open delta installation and communications. TABLE 7-1: GROUP 0 PROGRAMMING FORMAT FUNCTION NUMBER 0. 1. 2. 3. 4. 5. E. 7.
Chapter 7 Global Meter Setup 7.2 GROUP 0, FUNCTION 1 - THE METER ADDRESS METER ADDRESS: Identifies the meter when communicating with a computer system or an RS485 bus. When numerous meters are at one site, it is essential that each meter have its own address. Ö To change the METER ADDRESS, follow these steps: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABCA B C I I I I I I N N NB C A 0. 0 I.
Chapter 7 Global Meter Setup AC VOLTS ABCA B C I I I I I I N N NB C A 0. AC AMPS A B C N MAX MIN LM1 MAX/MIN LIMITS PRINT PROG VOLTS AMPS LM2 MAX PHASE NEXT MIN 02. I20 MAX/MIN LIMITS Step 1: a. Enter Group Level of Programming Mode (see Chapter 6). b. Press MAX/MIN/LIMITS until 0. appears in upper display. AC VOLTS A B CA B C I I I I I I N N NB C A PRINT PROG VOLTS AC AMPS A B C N LM1 AMPS LM2 PHASE NEXT Ö 02. appears in upper display. Ö Lower display indicates current Baud Rate.
Chapter 7 Global Meter Setup ÖPress PRINT/PROG to scroll from PACK to PACK. FUNCTION GROUP PACK AC VOLTS A B CA B C I I I I I I N N NB C A 03.
Chapter 7 Global Meter Setup 7.5 GROUP 0, FUNCTION 3 - PROGRAMMING PROCEDURE ÖTo change the SYSTEM CONFIGURATION SWITCH settings, follow these steps: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABC A B C I I I I I I NNNB C A 0. 03.0 MAX MIN LM1 MAX/MIN LIMITS PRINT PROG VOLTS AMPS _ _ _ AC AMPS A B C N LM2 MAX PHASE NEXT MIN MAX/MIN LIMITS Step 1: a. Enter Group Level of Programming Mode, (see Chapter 6). b. Press MAX/MIN/ LIMITS until 0.
Chapter 7 Global Meter Setup EXAMPLE 1: Relay 1 will be “SET” once the reading exceeds 5.00 amps. Relay 1 will be “RESET” once the reading falls below 5.00 amps. SET L1 5 .0 0 A RESET 0 A N O P O W E R T O T H E U N IT RESET 1. Enter in GROUP 0, FUNCTION 4, Segment C and D: UP, DOWN 2. Enter in GROUP 4, FUNCTION 2, LIMIT 1, Segments B, C, and D: UP, UP, DOWN EXAMPLE 2: NORMALLY RESET - NON-EVENT CONDITION WILL RESET RELAY Relay 1 will be “SET” if the instantaneous reading for amps is below 4.
Chapter 7 Global Meter Setup ÖTo change the TIME DELAY FOR RELAY 1 OR RELAY 2, follow these steps: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABC A B C I I I I I I NNNB C A 0. 04. 060 AC AMPS A B C N MAX MIN MAX/MIN LIMITS LM1 PRINT PROG VOLTS AMPS MAX LM2 MIN MAX/MIN LIMITS PHASE NEXT Step 1: a. Enter Group Level of Programming Mode (see Chapter 6). b. Press MAX/MIN/LIMITS until 0. appears. c. Press VOLTS to activate the Group.
CHAPTER 8 PROGRAMMING GROUP 1 8.1 SCALE SELECTIONS AND FULL SCALE SETTINGS Programming GROUP 1 functions provide a selection of Full Scale Settings to accommodate the different CT’s and PT’s. The decimal point may be positioned for maximum resolution. The user can perform Scale Selection in each function. The site technician has a choice of Full Scale selection between volts and kilovolts or amps and kiloamps.
Chapter 8 Programming GROUP 1 I0 MAX AC VOLTS ABC A B C I I I I I I NNNB C A _ MIN MAX/MIN LIMITS LM1 PRINT PROG VOLTS AMPS I0 AC AMPS A B C N LM2 MAX PHASE NEXT AC VOLTS ABC A B C I I I I I I NNNB C A . MIN MAX/MIN LIMITS AC AMPS A B C N LM1 PRINT PROG VOLTS AMPS LM2 PHASE NEXT ENTERING THE FULL SCALE FACTOR DECIMAL POINT SELECTION Step 3: ÖA dash appears in lower display. Step 4: a. Press PRINT/PROG to begin decimal placement. a.
CHAPTER 9 PROGRAMMING GROUP 2: METER CALIBRATION 9.1 STANDARD CALIBRATION WARNING - READ THIS SECTION CAREFULLY BEFORE PROCEEDING ⌦ Calibration does not need to be accomplished to change CT or PT ratios. (See GROUP 1). ⌦ Meter calibration cannot be performed if the meter is installed for service. The sensing must be connected to a power supply with variable voltage and separate current outputs. ⌦ The calibration procedure requires highly accurate and stable input signals.
Chapter 9 Programming GROUP 2: Meter Calibration 9.2 GROUP 2, FUNCTIONS 0-8: HIGH END CALIBRATION OF VOLTAGE CHANNELS, HIGH & LOW END CALIBRATION OF AMPERAGE CHANNELS To change the CALIBRATION, follow these steps: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABCA B C I I I I I I NNNB C A 2. 2 I.
Chapter 9 Programming GROUP 2: Meter Calibration FOR FUNCTIONS 6 THROUGH 8, FOLLOW THESE STEPS: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABC A B C I I I I I I NNN B C A 2. 26. 250 AC AMPS A B C N MAX MIN MAX/MIN LIMITS LM1 PRINT PROG VOLTS AMPS AC VOLTS ABC A B C I I I I I I NNNB C A LM2 MAX PHASE NEXT AC AMPS A B C N MIN LM1 MAX/MIN LIMITS PRINT PROG VOLTS AMPS LM2 PHASE NEXT Step 1: a.
CHAPTER 10 PROGRAMMING GROUP 4: SET LIMITS & RELAYS GROUP 4 contains LM1 and LM2 set limit values for the voltage and amperage scale allowing the user to program the limits for the following Groups: VOLTS phase-to-neutral, VOLTS phase-to-phase, AMPS A, B, C, and AMPS neutral. DIAGRAM 10.1: EXAMPLE OF LM1/LM2 SET LIMITS, VOLTS AND AMPS 120 120 LM1 is triggered LM1 SET TO TRIGGER ABOVE 100 AMPS. 100 80 80 CURRENT (AMPS) 60 LM2 SET TO TRIGGER BELOW 50 AMPS. 40 50 40 LM2 is triggered 20 0 10.
Chapter 10 Set Limits & Relays GROUP 4, FUNCTIONS 0 - 3: LM1/LM2 SET LIMITS I MAX MIN MAX/MIN LIMITS PRINT PROG VOLTS LIMIT VALUE AMPS AC AMPS A B C N LM1 LM2 FROM LEFT TO RIGHT: SET LIMIT ABOVE OR BELOW, TRIP RELAY I AND TRIP RELAY II 40.
Chapter 10 Set Limits and Relays ÖTo program LIMITS OR RELAYS, follow these steps: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABC A B C I I I I I I NNNB C A 4. 40. MIN MAX/MIN LIMITS LM1 PRINT PROG VOLTS AMPS _ _ _ AC AMPS A B C N MAX AC VOLTS ABC A B C I I I I I I NNNB C A LM2 MAX PHASE NEXT MIN MAX/MIN LIMITS AC AMPS A B C N LM1 PRINT PROG VOLTS AMPS LM2 PHASE NEXT Step 1: a. Enter Group Level of Programming Mode, (see Chapter 2).
Chapter 10 Set Limits & Relays AC VOLTS ABCA B C I I I I I I NNNB C A AC AMPS A B C N _ MAX MIN MAX/MIN LIMITS LM1 PRINT PROG VOLTS 40 2_ I 40 __ AMPS AC VOLTS ABCA B C I I I I I I NNNB C A LM2 MAX PHASE NEXT MIN MAX/MIN LIMITS Step 4: a. Press PRINT/PROG to toggle between LM1 and LM2 settings. b. Press VOLTS to store. c. Press PRINT/PROG to change current Set Above/Below, Trip Relay 1, and Trip Relay 2 settings. Ö This toggles the segments UP (above limit) or DOWN (below limit). d.
CHAPTER 11 PROGRAMMING GROUP 7: PHASE REVERSAL & PHASE IMBALANCE SET LIMITS/RELAYS 11.1 VOLTAGE PHASE REVERSAL AND PHASE IMBALANCE The set limit alerts the user of an unbalanced or a reversed phase in a Three-phase System. The EPM3000P has two options for this purpose. PHASE REVERSAL: Activates when a reversed phase enters the EPM3000P’s metering system. PERCENT PHASE IMBALANCE: Activates when the user’s present value percent phase imbalance is exceeded. For example: an unbalanced Threephase System.
Chapter 11 Phase Reversal & Phase Imbalance Set Limits/Relays 11.3 GROUP 7, FUNCTION 0: VOLTAGE PHASE REVERSAL DETECTION ÖTo change the PHASE REVERSAL settings, follow these steps: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABCA B C I I I I I I NNNB C A 7. 70. MIN LM1 MAX/MIN LIMITS PRINT PROG VOLTS AMPS _ _ _ AC AMPS A B C N MAX AC VOLTS ABCA B C I I I I I I NNNB C A MAX LM2 MIN MAX/MIN LIMITS PHASE NEXT Step 1: a.
Chapter 11 Phase Reversal & Phase Imbalance Set Limits/Relays 11.4 GROUP 7, FUNCTION 1: PERCENTAGE VOLTAGE PHASE IMBALANCE ÖTo change PERCENTAGE VOLTAGE PHASE IMBALANCE, follow these steps: NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH. AC VOLTS ABCA B C I I I I I I NNNB C A 7. MIN LM1 MAX/MIN LIMITS PRINT PROG VOLTS AMPS _ _ AC AMPS A B C N MAX AC VOLTS ABCA B C I I I I I I NNNB C A 7 I.
CHAPTER 12 EXITING THE PROGRAMMING MODE NOTE: STEPS TO EXIT THE PROGRAMMING MODE VARIES AS THE PROGRAMMING STAGE VARIES. Exiting the Programming Mode is ALWAYS necessary to store any new changes and to calculate a new checksum. Failure to exit results in a checksum error. The display blanks and the max LED intermittently flashes. IF YOU ARE LOCATED AT: AC VOLTS ABCA B C I I I I I I NNNB C A 00. I25 MAX LM1 PRINT PROG VOLTS AC VOLTS ABCA B C I I I I I I NNNB C A IE.
