GE MM3, Instruction Manual, Page: 205 / 230

CHAPTER 9: APPLICATIONS CONTROL WIRE APPLICATIONS
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 9–7
The
INTERLOCK INPUT 1(3)
setpoints were chosen to match the wiring diagram provided.
Any of the available Interlocks 1 through 10 could be programmed for two-wire control,
auto-permissive, or auto start A.
HAND operation:
• In the hand position, the motor is available to start.
• When the START button is pressed, the motor runs.
• When the STOP button is pressed, the motor stops and a latched trip is generated.
The motor cannot be restarted until reset is pressed.
• When the faceplate stop key is pressed, it causes a latched trip. The motor cannot
be restarted until reset is pressed.
AUTO operation:
• In the auto position, the motor is available to start.
• When the PLC contact closes, the motor runs.
• When the PLC contact opens, the motor stops and a latched trip is generated. The
motor cannot be restarted until reset is pressed.
• When the faceplate stop key is pressed, it causes a latched trip. The motor cannot
be restarted until reset is pressed.
• Start commands from the faceplate, serial port and terminals 12,53 are blocked.
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 Status N.O. input within 1 second of closing
contactor A output relay, an
OPEN CONTROL CIRCUIT alarm will occur. This will cause
contactor A output relay to open.
In the case of a faceplate or process stop trip, the start signal to terminal 43 should be
removed if restarting is not desired. When the MM3 Motor Manager 3 reset key is pressed,
the motor will be restarted based on terminal 43.
The STOP button at the motor remains active in the auto mode.
NOTE