GE 469

CHAPTER I:
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL I–3
specifications................................................................................................................... 2-13
BEARING RTD......................................................................................................... 5-70, 5-73
BEARING RTD TRIPS ....................................................................................................... 6-30
BLOCK START...................................................................................................................... 5-7
C
CALIBRATION DATE ........................................................................................................ 6-36
CAPTURE TRACE .............................................................................................................. 5-32
CASE ..................................................................................................................................... 2-15
CAUSE OF EVENTS TABLE ............................................................................................ 6-34
CERTIFICATIONS.............................................................................................................. 2-14
CHANGING PASSCODE.................................................................................................... 5-8
CHANGING SETPOINTS ................................................................................................... 1-9
CLEAR DATA ...................................................................................................................... 5-15
CLOCK....................................................................................................................... 5-13, 6-10
COMM PORT MONITOR ...............................................................................................5-102
COMMUNICATIONS
clear buffers ...................................................................................................................5-102
control ............................................................................................................................... 5-20
monitoring ......................................................................................................................5-102
RS232 ........................................................................................................... 4-11
, 4-16, 4-18
RS485 .................................................................................................3-24, 4-12, 4-16, 4-18
setpoints ................................................................................................... 5-10, 5-20, 5-102
specifications................................................................................................................... 2-13
wiring ...................................................................................................................... 4-11
, 4-12
CONTACTOR, ALTERNATE WIRING ........................................................................... 3-24
CONTROL POWER
connection diagram ...........................................................................................................3-12
description........................................................................................................................ 3-12
COOL TIME CONSTANTS...............................................................5-38, 5-55, 5-57, 5-67
CORE BALANCE................................................................................................................ 5-18
CORE BALANCE GROUND CT
connection.............................................................................................................................3-15
method .............................................................................................................................. 3-16
CTs
differential ........................................................................................................................ 3-16
ground ......................................................................................................... 3-13
, 3-14, 5-17
phase ............................................................................................................. 3-13, 5-17, A-7
phasors.............................................................................................................................. 6-19
see CURRENT TRANSFORMER
CURRENT DEMAND.............................................................................................. 5-87, 6-15
CURRENT METERING...................................................................................................... 6-11
CURRENT SENSING......................................................................................................... 5-17
CURRENT TRANSFORMERS
see CTs ................................................................................................................................. A-6
CURRENT UNBALANCE
actual value...................................................................................................................... 6-11
event record ..................................................................................................................... 6-33
pre-trip value ..................................................................................................................... 6-5
setpoints ........................................................................................................................... 5-62
specifications..................................................................................................................... 2-8
trip counter....................................................................................................................... 6-30
CUSTOM OVERLOAD CURVES
description........................................................................................................................ 5-43
example............................................................................................................................. 5-45