GE 269Plus User Manual

ii 269Plus Motor Management Relay GE Power Management
TABLE OF CONTENTS
3.13 CONTACTOR/BREAKER WIRING.......................................................... 3-51
3.14 UNDERCURRENT SETPOINTS ............................................................. 3-52
3.15 RAPID TRIP / MECHANICAL JAM SETPOINTS..................................... 3-52
3.16 SHORT CIRCUIT SETPOINTS ............................................................... 3-52
3.17 IMMEDIATE OVERLOAD ALARM SETPOINT........................................ 3-53
3.18 STATOR RTD SETPOINTS..................................................................... 3-53
3.19 OTHER RTD SETPOINTS....................................................................... 3-54
3.20 OVERLOAD CURVE SETPOINTS.......................................................... 3-55
3.21 THERMAL CAPACITY ALARM ............................................................... 3-59
3.22 THERMAL MEMORY............................................................................... 3-59
a U/B INPUT TO THERMAL MEMORY................................................... 3-60
b RTD INPUT TO THERMAL MEMORY ................................................. 3-61
c LEARNED COOLING TIMES ............................................................... 3-62
d START INHIBIT .................................................................................... 3-62
3.23 EMERGENCY RESTART........................................................................ 3-63
3.24 RESETTING THE RELAY ....................................................................... 3-64
a SINGLE SHOT RESTART.................................................................... 3-64
b SPECIAL EXTERNAL RESET.............................................................. 3-64
3.25 RELAY SELF-TEST................................................................................. 3-65
3.26 STATISTICAL DATA FEATURES ........................................................... 3-65
3.27 FACTORY SETPOINTS .......................................................................... 3-65
3.28 METER OPTION...................................................................................... 3-66
a THE PHENOMENON ........................................................................... 3-68
b RECOMMENDATIONS ........................................................................ 3-68
3.29 PRESET CONFIGURATIONS / FUNCTIONS ......................................... 3-69
4. COMMUNICATIONS 4.1 INTRODUCTION ....................................................................................... 4-1
4.2 MODES OF OPERATION.......................................................................... 4-1
4.3 PHYSICAL LAYER .................................................................................... 4-1
4.4 PACKET FORMAT .................................................................................... 4-3
4.5 THE HANDSHAKE .................................................................................... 4-4
4.6 SUPPORTED FUNCTIONS....................................................................... 4-5
a FUNCTION 03h: READ SETPOINTS (HOLDING REGISTERS) ........... 4-5
b FUNCTION 04H: READ ACTUAL VALUES (INPUT REGISTERS) ....... 4-6
c FUNCTION 16 (10H): WRITE SETPOINT VALUES .............................. 4-6
4.7 EXCEPTION OR ERROR REPLIES.......................................................... 4-7
4.8 ERROR CHECKING CODE....................................................................... 4-8
a DESCRIPTION ....................................................................................... 4-8
b CRC-16 ALGORITHM ............................................................................ 4-8
c SAMPLE PACKET WITH CRC-16.......................................................... 4-9
4.9 MEMORY MAP.......................................................................................... 4-9
4.10 FORMAT CODES.................................................................................... 4-24
5. RELAY TESTING 5.1 PRIMARY INJECTION TESTING.............................................................. 5-1
5.2 SECONDARY INJECTION TESTING........................................................ 5-1
5.3 PHASE CURRENT INPUT FUNCTIONS .................................................. 5-1
5.4 GROUND FAULT CURRENT FUNCTIONS.............................................. 5-4
5.5 RTD MEASUREMENT TESTS.................................................................. 5-4
5.6 POWER FAILURE TESTING..................................................................... 5-5
5.7 ANALOG CURRENT OUTPUT.................................................................. 5-5
5.8 ROUTINE MAINTENANCE VERIFICATION ............................................. 5-5
5.9 DIELECTRIC STRENGTH (HI-POT) TEST ............................................... 5-6

GE 269Plus Specifications

General

Brand	GE
Model	269Plus
Category	Relays
Language	English