Toshiba G7 Operation Manual page 185

Fault Screen Display
Overheat
Over Speed
Overtorque
Overvoltage During Acceleration
Note: The event that caused the Trip(s) must be corrected or must decrease to less than the threshold
value required to cause the trip to allow for a Reset to be recognized. In the event of multiple
active trips, the trip displayed will remain until all faults are corrected and all trips are cleared.
Overvoltage During Deceleration
Overvoltage During Run
PG Type/Connection Error
Phantom Fault
Position Deviation Error
RAM Fault
ROM Fault
Sink/Source Setting Error
Torque Proving Fault
G7 ASD Operation Manual
• Cooling fan inoperative.
• Ventilation openings are obstructed.
• Internal thermistor is disconnected.
• Result of a motor speed that is greater than the commanded speed when using an
encoder for speed control.
• Improper encoder connection or setup information.
• Defective encoder.
• A torque requirement by the load in excess of the setting of F616 or F617 for a
time longer than the setting of F618.
• The ASD is improperly matched to the application.
• The load is obstructed.
• Motor running during restart.
• Deceleration time is too short.
• DBR value is too high.
• DBR required (DBR setup required).
• Stall protection is disabled.
• 3-phase input voltage is out of specification.
• Input reactance required.
• Load fluctuations.
• 3-Phase input voltage out of specification.
• ASD is configured to receive a signal from a shaft-mounted encoder and no signal
is being received while running.
• Disconnection at the Encoder circuit.
• Motor is stopped and is generating torque via torque limit control.
• ASD is not configured properly.
• In a multiple ASD configuration a faulted ASD signals the remaining ASDs that a
fault has occurred and shuts down the non-faulted ASDs.
• Operating in the Position Control mode and the resulting position exceeds the
limits of the F631 setting.
• Internal RAM malfunction.
• Internal ROM malfunction.
• Improperly positioned Sink/Source jumper on the control board or on an option
device.
• Sink/Source configuration of an option device is incorrect.
• Lift-First Pulse Count (F743) adjustment required.
Possible Causes
179