GE 469 Manual

GE Power Management 469 Motor Management Relay 4-19
4 SETPOINT PROGRAMMING 4.4 S3 DIGITAL INPUTS
4
4.4.10 DIGITAL INPUT FUNCTION: SPEED SWITCH TRIP
When this function is assigned to a digital input, the following will occur. When a transition from stopped to start
is detected a timer will be loaded with the delay programmed. If that delay expires before a contact closure is
detected, a trip will occur. Once the motor is stopped, the scheme is reset.
4.4.11 DIGITAL INPUT FUNCTION: LOAD SHED TRIP
Once the Load Shed Trip function is chosen for one of the assignable digital inputs, the setpoint messages
shown here will follow the assignment message. A trip relay may be selected. A contact closure on the switch
input assigned as Load Shed Trip will cause a trip within 100 ms.
4.4.12 DIGITAL INPUT FUNCTION: PRESSURE SWITCH ALARM
Once the Pressure Switch Alarm function is chosen for one of the assignable digital inputs, the setpoint mes-
sages shown here will follow the assignment message. The Pressure Switch alarm feature may be blocked for
a specified period of time from a motor start. A value of zero for the block time indicates that the feature is
always active, when the motor is stopped or running. After the block delay has expired, the digital input will be
monitored. If a closure occurs, after the specified delay, an alarm will occur.
ASSIGN TRIP RELAYS:
Trip
Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3,
Trip & Auxiliary3
SPEED SWITCH TRIP
TIME DELAY: 5.0 s
Range: 1.0 to 250.0 sec., step: 0.1
ASSIGN TRIP RELAYS:
Trip
Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3,
Trip & Auxiliary3
BLOCK PRES. SW. ALARM
FROM START: 0 s
Range: 0 to 5000 sec., step: 1 (0 indicates feature is active while
motor is stopped as well as running)
PRESSURE SWITCH
ALARM: Unlatched
Range: Latched, Unlatched
ASSIGN ALARM RELAYS:
Alarm
Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm
& Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3
PRESSURE SW. ALARM
DELAY: 5.0 s
Range: 0.1 to 100.0 sec., step: 0.1
PRESSURE SW. ALARM
EVENTS: Off
Range: On, Off
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GE 469 Specifications

General

Brand	GE
Model	469
Category	Relays
Language	English