
CHAPTER 5: SETPOINTS
S4 CONTROL
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
5–31
5.5
S4 Control
5.5.1
Undervoltage
Auto Restart
PATH: S4 CONTROL
Ö
UNDERVOLTAGE AUTO RESTART
It is possible to restart the motor after a momentary power loss if the undervoltage
autorestart feature is enabled. When the control voltage (derived from the incoming motor
supply) drops below the dropout voltage, both contactors are de-energized. Voltage
thresholds for the two internally set control voltage levels are 80 V for 120 V setting and
150 V for 240 V setting. At nominal voltage, the MM3 Motor Manager 3 rides through a
power outage less than 135 ms (varies according to the number of output relays energized
at the time of power failure). Critical data is saved to E
2
PROM at this time. A power outage
that exceeds the MM3 Motor Manager 3 ride-through initializes a backup timer that
continues to run without power for approximately 1 hour. Once control power is restored,
the MM3 Motor Manager 3 can take up to 300 ms to initialize; this time includes the
initializing of the microprocessor, variables in the code, the determination that a restart is
required, and the closure of the internal output relay. The reaction time of the contactor
will be in addition to the 300 ms power-up time. If control voltage is restored within the
IMMED. RESTART POWER LOSS TIME
(0.1 to 0.52 s), the motor will be restarted immediately.
If the supply is restored after the
IMMED. RESTART POWER LOSS TIME
but before the
DELAY1
RESTART POWER LOSS TIME
, the motor will be restarted after the
DELAY 1 RESTART TIME
DELAY
. If the supply is restored after the
DELAY1 RESTART POWER LOSS TIME
but before the
DELAY2 RESTART POWER LOSS TIME
, the motor will be restarted after the
DELAY2 RESTART
TIME DELAY
. If the
DELAY1 RESTART POWER LOSS TIME
to “UNLIMITED”, the MM3 Motor
Manager 3 ignores the
DELAY2 RESTART POWER LOSS TIME
and will always attempt a
restart using the
DELAY1 RESTART TIME DELAY
.
] UNDERVOLTAGE
] AUTO RESTART
UNDERVOLTAGE
RESTART: ENABLE
Range: ENABLE, DISABLE
IMMED. RESTART POWER
LOSS TIME:
200 ms
Range: 100 to 520 ms or OFF in steps
of 20
DELAY1 RESTART POWER
LOSS TIME:
2.0 s
Range: 0.1 to 10 s or UNLIMITED in
steps of 0.1
DELAY2 RESTART POWER
LOSS TIME:
OFF min.
Range: 0.5 to 60 min. or OFF in steps of
0.5
DELAY1 RESTART TIME
DELAY:
2.0 s
Range: 0.2 to 1200.0 s in steps of 0.2
DELAY2 RESTART TIME
DELAY: 10.0 s
Range: 0.2 to 1200.0 s in steps of 0.2
Содержание MM3
Страница 8: ...vi MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 11: ...CHAPTER 1 INTRODUCTION OVERVIEW MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL 1 3 Figure 1 1 Functional block diagram ...
Страница 18: ...1 10 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL TECHNICAL SPECIFICATIONS CHAPTER 1 INTRODUCTION ...
Страница 80: ...4 18 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL CHASSIS MOUNT UNITS CHAPTER 4 SOFTWARE ...
Страница 124: ...5 44 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL S7 TESTING CHAPTER 5 SETPOINTS ...
Страница 198: ...8 54 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL MODBUS MEMORY MAP CHAPTER 8 COMMUNICATIONS ...
Страница 220: ...10 14 MM3 MOTOR MANAGER 3 INSTRUCTION MANUAL GE MULTILIN WARRANTY CHAPTER 10 MISCELLANEOUS ...