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LED
LCD
Screen
Screen
E-13
Over-Speed
OT
Over-Torque
Over-Voltage
OP1
Acc
Over-Voltage
OP2
Dec
Over-Voltage
OP3
Run
E-21
Stack Err
SOUT
Step-Out (PM)
OCA1
U-Phase OC
OCA2
V-Phase OC
OCA3
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 cleared.
Q9 Plus ASD Installation and Operation Manual
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Table 19. Fault Codes (Continued)
Fault Description
Speed Error (Over-Speed).
Over-Torque.
Over-Voltage During
Acceleration.
Over-Voltage During
Deceleration.
Over-Voltage During Fixed
Speed Operation.
Stack Overflow Error.
Step-Out (For PM Motors
Only).
U-Phase Over-Current.
V-Phase Over-Current.
W-Phase Over-Current.
Possible Cause
• 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.
• Output torque requirement in excess of the
or
F617
settings for a time longer than the
setting.
• Motor is running during restart.
• Deceleration time is too short.
• Stall prevention is disabled.
• 3-phase input voltage is out of specification.
• Input reactance is required.
• Load fluctuations.
• 3-phase input voltage out of specification.
• Service call is required.
• Service call is required.
• Low impedance at the U/T1 phase.
• Low impedance at the V/T2 phase.
• Low impedance at the W/T3 phase.
F616
F618
255
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