Toshiba ACE-tronics G9 ASD Installation And Operation Manual page 261

LCD Screen
Screen
MS Relay Off/Soft Start
Alarm
Over-Current
*Over-Heat
Over-Torque
* Reset ignored if active.
ACE-tronics G9 ASD Installation and Operation Manual
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
LED
Description
MOFF
Under-voltage condition at
the 3-phase AC input to the
ASD.
OC
ASD output current greater
than F601 setting.
OH
ASD ambient temperature
excessive.
OT
Torque requirement in excess
of the setting of F616
for a time longer than the
setting of F618.
Possible Causes
• Low 3-phase utility voltage.
• Defective IGBT (U, V, or W).
• ASD output to the motor is connected
incorrectly.
• ASD output phase-to-phase short.
• The ASD is starting into a spinning motor.
• Motor/machine jammed.
• Mechanical brake engaged while the ASD is
starting or while running.
• Accel/Decel time is too short.
• Voltage Boost setting is too high.
• Load fluctuations.
• ASD operating at an elevated temperature.
• ASD is operating at an elevated temperature.
• ASD is too close to heat-generating
equipment.
• Cooling fan vent is obstructed (see
the ASD on pg.
• Cooling fan is inoperative.
• Internal thermistor is disconnected.
• ASD is not correctly matched to the
or F617 application.
• F616 or F617 setting is too low.
• Obstructed load.
Mounting
15).
251