Toshiba Q7 Installation And Operation Manual page 156

Fault Screen Display
Speed Error
Overtorque
Overvolt Accel
Overvolt Decel
Overvolt Run
Positional Err
RAM Err
ROM Err
Sink/Source Error
Type(form) Error
U Phase OC
V Phase OC
W Phase OC
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.
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• 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 parameter
F617 for a time longer than the setting of parameter 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.
• Operating in the Position Control mode and the resulting position exceeds the
limits of the Position Control 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.
• Firmware information (typeform) loaded into the Gate Driver board is
inconsistent with the device in which the firmware is being used.
• The Gate Driver board has been replaced.
• The Gate Driver board is defective.
• Low impedance at the U lead of the ASD output.
• Low impedance at the V lead of the ASD output.
• Low impedance at the W lead of the ASD output.
Possible Causes
Q7 ASD Installation and Operation Manual
F616 or