Two-Wire Control - GE Multilin MM3 Motor Manager 3 Instruction Manual

GE Consumer & Industrial
Multilin
ACTUAL STORE
SETPOINT RESET
MESSAGE
RUNNING RELAY A RELAY A
RELAY B RELAY B
STOPPED
VALUE
TRIPPED AUX RELAY 1 AUX RELAY 1
AUX RELAY 2 AUX RELAY 2
ALARM AUTO MANUAL
STOP
START START START START
A A B B
9.1.1 Two-wire
Control
NOTE
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
MM3 Motor Manager 3
Chapter 9: Applications
Applications
9.1 Control Wire Applications
This control scheme is used when a maintained contact is in series with the starter coil.
When the PLC contact is closed the motor runs. When the PLC contact opens the motor
stops.
To program the MM3 Motor Manager 3 for two-wire control, set:
S3 PROCESS PROGRAMMABLE INPUTS
S3 PROCESS STOP CONFIGURATION
The setpoint was chosen to match the wiring diagram provided. Any of
INTERLOCK INPUT 1
the available Interlocks 1 through 10 could be programmed for two-wire control.
START operation:
• Start command received (switch input) and maintained.
STOP operation:
• Start command removed.
• Pressing the STOP key causes a latched trip. The motor cannot be restarted until
RESET is pressed.
Terminal 11 (Stop input) must be closed to allow a start. The MM3 Motor Manager 3 display
will read MOTOR STATUS UNAVAILABLE when the stop input is open.
If feedback is not received by the Contactor A relay Status N.O. inputs within 1 second of
closing contactor A output relay, an
cause contactor A output relay to open.
INTERLOCK INPUT
FACEPLATE STOP: "LATCHED"
OPEN CONTROL CIRCUIT
1: "TWO WIRE CONTROL"
alarm will occur. This will
9–1