Fv Reversing Starter; Description - GE MM3 Instruction Manual

9 STARTER TYPES

9.2 FV REVERSING STARTER

This starter type is a full voltage or across-the-line reversing starter. When the forward button is pressed, the F
coil is picked up and sealed in by CR1. The TR1 timing relay coil is also picked up, thus preventing a change in
direction until TR1 drops out and closes again. When the R button is pressed, the R coil picks up and is sealed-
in by CR2. The TR2 timing relay is also picked up. The motor will reverse direction, provided TR1 has timed
out and closed the circuit.
To program the MM3 for full-voltage reversing starter, set:
S1 CONFIGURATION\STARTER\STARTER TYPE: FV REVERSING
S1 CONFIGURATION\STARTER\TRANSFER TIME: 1 to 125 seconds
The TRANSFER TIME setpoint appears if the FV REVERSING starter type has been selected. This delay occurs
when the motor is running in the forward direction (Contactor A) and the MM3 receives a Start B command to
run in the reverse direction (Contactor B) and vice versa.
GE Power Management
Figure 9–3: FULL VOLTAGE REVERSING STARTER
MM3 Motor Manager 3
9.2 FV REVERSING STARTER

9.2.1 DESCRIPTION

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