Trips, Alarms, And Blocks - GE 469 Instruction Manual

Overview
Trips, Alarms, and
Blocks
GE Multilin
MESSAGE
SETPOINTS [ ]
S13 469 TESTING
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
SETPOINTS [ ]
S14 2-SPEED MOTOR
MESSAGE
MESSAGE
MESSAGE
The 469 has three basic categories of protection elements. They are trips, alarms,
and blocks.
• TRIPS: A 469 trip feature may be assigned to any combination of the two
Auxiliary relays, 2 AUXILIARY and 3 AUXILIARY, in addition to the 1 TRIP Relay.
If a Trip becomes active, the appropriate LED (indicator) on the 469 faceplate
will illuminate to show which of the output relays has operated. In addition to
the Trip relay(s), a trip will always operate the Block Start relay. Trip features
are may be programmed as latched or unlatched. Once a relay has been
operated by a latched trip, a reset must be performed to clear the trip when the
condition is no longer present. If there is a lockout time, the Block Start relay
will not reset until the lockout time has expired. If an unlatched trip feature
becomes active, that trip will reset itself (and associated output relays) as soon
as the condition that caused the trip ceases. Immediately prior to issuing a trip,
the 469 takes a snapshot of motor parameters and stores them as pre-trip
values which will allow for troubleshooting after the trip occurs. The cause of
last trip message is updated with the current trip and the 469 display defaults to
that message. All trip features are automatically logged and date and time
stamped as they occur. In addition, all trips are counted and logged as statistics
such that any long term trends may be identified.
• ALARMS: A 469 alarm feature may be assigned to operate any combination of
three output relays, 4 ALARM, 3 AUXILIARY, and 2 AUXILIARY. When an Alarm
becomes active, the appropriate LED (indicator) on the 469 faceplate will
illuminate when an output relay(s) has operated. Each alarm feature may be
http://www.GEindustrial.com/multilin
Motor Management Relay
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SIMULATION [ ]
See page 5–83.
MODE
PRE-FAULT [ ]
See page 5–84.
SETUP
FAULT [ ]
See page 5–85.
SETUP
TEST [ ]
See page 5–86.
OUTPUT RELAYS
TEST [ ]
See page 5–86.
ANALOG OUTPUT
COMMUNICATION [ ]
See page 5–87.
PORT MONITOR
GE MULTILIN [ ]
See page 5–87.
USE ONLY
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SPEED2 [ ]
See page 5–88.
OVERLOAD SETUP
SPEED2 [ ]
See page 5–92.
UNDERCURRENT
SPEED2 [ ]
See page 5–92.
ACCELERATION
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469
5–5