
CHAPTER 2: INSTALLATION
STARTER TYPES
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
2–31
3.
Open auxiliary output relay 1M contact
When the power to the MM3 Motor Manager 3 is interrupted, all output relays on the MM3
Motor Manager 3 will de-energize causing them to open and stop the motor. The MM3
Motor Manager 3 can only be wired for fail-safe operation.
If feedback is not received from the Contactor A Status N.O. input within one second of
closing contactor A relay, an open control circuit alarm will occur. This will cause all starter
output relays to open. If feedback remains at the Contactor A Status N.O. input more than
one second after opening the contactor A output relay, a welded contactor alarm will
occur.
If feedback is not received from the Contactor B Status N.O. input within one second of
closing contactor B relay, an open control circuit alarm will occur. This will cause All starter
output relays to open. If feedback remains at the Contactor B Status N.O. input more than
one second after opening the contactor B output relay, a welded contactor alarm will
occur.
If feedback is not received from the Wye Delta 1M contact interlock input within one
second of closing contactor A relay, an open control circuit alarm will occur. This will cause
All starter output relays to open. If feedback remains at the Wye Delta 1M contact interlock
input more than one second after opening the auxiliary output relay, a welded contactor
alarm will occur.
Figure 2-24: Wye-delta Open Transition Starter
GE POWER MANAGEMENT
Summary of Contents for MM3
Page 8: ...vi MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL TABLE OF CONTENTS ...
Page 18: ...1 10 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL TECHNICAL SPECIFICATIONS CHAPTER 1 INTRODUCTION ...
Page 80: ...4 18 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL CHASSIS MOUNT UNITS CHAPTER 4 SOFTWARE ...
Page 124: ...5 44 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL S7 TESTING CHAPTER 5 SETPOINTS ...
Page 198: ...8 54 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL MODBUS MEMORY MAP CHAPTER 8 COMMUNICATIONS ...
Page 220: ...10 14 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL GE MULTILIN WARRANTY CHAPTER 10 MISCELLANEOUS ...