GE 469 Instruction Manual page 45

CHAPTER 1: GETTING STARTED
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
if the measured voltage is greater than 20% of nominal voltage. A trip condition will be
initiated only if undervoltage is detected in all the phases.
• In order to monitor for VT Fuse Failure or to monitor for undervoltage in one phase
only, set an Alarm when the voltage is 90% of nominal voltage both during start and
running.
For the Undervoltage element, enter the following values in the
settings page. Press the
UNDERVOLTAGE
key, after each settings is completed, to move to the next message:
U/V ACTIVE ONLY IF BUS ENERGIZED
UNDERVOLTAGE ALARM
ASSIGN ALARM RELAYS
UNDERVOLTAGE ALARM PICKUP
STARTING U/V ALARM PICKUP
UNDERVOLTAGE ALARM DELAY
UNDERVOLTAGE ALARM EVENTS
: "Latched"
UNDERVOLTAGE TRIP
UNDRVOLTAGE TRIP MODE
: "Trip"
ASSIGN TRIP RELAYS
UNDERVOLTAGE TRIP PICKUP
STARTING U/V TRIP PICKUP
UNDERVOLTAGE TRIP DELAY
key to save, and then the
ENTER
: "Yes"
: "Unlatched"
: "Alarm"
: "0.9 x RATED"
: "0.9 x RATED"
: "0.0 s"
: "Yes"
: "3-Phase"
: "0.8 x RATED"
: "0.7 x RATED"
: "13.0 s"
S9 VOLTAGE ELEMENTS
MESSAGE
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