S4 Control; Description; Undervoltage Auto Restart - GE MM3 Instruction Manual

4 SETPOINTS

4.5 S4 CONTROL

]] SETPOINTS
]] S4: CONTROL
This page is used to configure all control features in the MM3. Setpoints Page 4 is divided into three sections,
UNDERVOLTAGE AUTO-RESTART, AUX RELAY 1 CONFIG, and AUX RELAY 2 CONFIG.
]] SETPOINTS
]] S4: CONTROL
PATH: SETPOINTS MMMM S4: CONTROL M UNDERVOLTAGE AUTO RESTART
UNDERVOLTAGE
RESTART: ENABLE
MESSAGE
IMMED. RESTART POWER
MESSAGE
LOSS TIME: 200 ms
DELAY RESTART POWER
MESSAGE
LOSS TIME: 2.0 s
RESTART TIME DELAY
MESSAGE
2.0 s
GE Power Management
] UNDERVOLTAGE
MESSAGE
] AUTO RESTART
] AUX RELAY 1 CONFIG
MESSAGE
]
] AUX RELAY 2 CONFIG
]
MESSAGE
Range: ENABLE, DISABLE
It is possible to restart the motor after a momentary power loss if this
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 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
that exceeds the MM3 ride-through initializes a backup timer that
continues to run without power for approximately 1 hour. Once control
power is restored, the MM3 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 0.5 sec.), the motor will be restarted
immediately. If the supply is restored after the IMMED. RESTART POWER
LOSS TIME but before the DELAY RESTART POWER LOSS TIME, the motor will
be restarted after the RESTART TIME DELAY. If a delayed restart is always
required, set the DELAY RESTART POWER LOSS TIME to UNLIMITED. Select
DISABLE if this feature is not required.
Range: 100 to 520 ms or OFF; Step: 20 ms
This is the time measured by the MM3 backup processor; it is not the
time the AC power has been off. See UNDERVOLTAGE RESTART for details.
Range: 0.1 to 10 seconds or TIME UNLIMITED; Step: 0.1 sec.
This is the time measured by the MM3 backup processor; it is not the
time the AC power has been off. See UNDERVOLTAGE RESTART for details.
Range: 0.2 to 1200.0 seconds; Step: 0.2 seconds
See UNDERVOLTAGE RESTART for details.
MM3 Motor Manager 3
4.5 S4 CONTROL

4.5.1 DESCRIPTION

4.5.2 UNDERVOLTAGE AUTO RESTART

2
PROM at this time. A power outage
4
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