
CHAPTER 2: INSTALLATION
STARTER TYPES
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
2–23
3.
Wait 20 ms, close and maintain the auxiliary 1 output relay – power is applied
to the autotransformer.
4.
Wait for the time set in the
CHANGE OVER TIME
setpoint.
5.
Open contactor A and auxiliary output relays.
6.
Wait 20 ms.
7.
Close and maintain contactor B output relay.
Start (
CONTACTOR SEQUENCE
set to 2S-1S) sequence:
1.
Start command received by the MM3 Motor Manager 3 (serial, switch input or
faceplate).
2.
Close and maintain the auxiliary output relay; power is applied to the
autotransformer.
3.
Wait 20 ms, close and maintain contactor A output relay – close the 1S
contactor.
4.
Wait for the time set in the
CHANGE OVER TIME
setpoint.
5.
Open contactor A and auxiliary output relays.
6.
Wait 20 ms.
7.
Close and maintain contactor B output relay.
Stop/trip sequence:
1.
Stop command received by the MM3 Motor Manager 3 or a trip occurs.
2.
Open contactor B output relay.
If feedback is not received from the 1S, 2S or R contacts to the contactor A, B or auxiliary
relay status N.O. inputs within one second of closing contactors A, B or the auxiliary relay,
an open control circuit alarm will occur. This opens contactors A, B and the auxiliary relay.
If feedback remains at any of the Status N.O. inputs for more than one second after
opening the its respective relay, a welded contactor alarm will occur.
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 ...