Toshiba Q9 Installation And Operation Manual page 213

EOI Display
Over-Current Dec Over-Current During Deceleration.
Over-Current During Fixed Speed
Over-Current Run
Operation.
Over-Speed Speed Error (Over-Speed).
Over-Torque Over-Torque.
Over-Voltage Acc Over-Voltage During Acceleration.
Over-Voltage Dec Over-Voltage During Deceleration.
Over-Voltage During Fixed Speed
Over-Voltage Run
Operation.
Stack Err Stack Overflow Error.
Step-Out (PM) Step-Out (For PM Motors Only).
U-Phase OC U-Phase Over-Current.
V/f Control Err V/f Control Error.
V-Phase OC V-Phase Over-Current.
W-Phase OC W-Phase Over-Current.
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 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 ASD Installation and Operation Manual
Table 12. Fault Codes (Continued)
Fault Description Possible Cause
• Phase-to phase short (U/T1, V/T2, or W/T3).
• Deceleration time is too short.
• Motor/machine jammed.
• Mechanical brake engaged while the ASD is
running.
• ASD current exceeds 320% or 340% of the rated
FLA on ASDs that are great than 100 HP or that
are 100 HP or less, respectively, during
acceleration.
• ASD/Motor improperly matched to the application.
• Load fluctuations.
• ASD is operating at an elevated temperature.
• ASD current exceeds 320% or 340% of the rated
FLA on ASDs that are greater than 100 HP or that
are 100 HP or less, respectively, during
acceleration.
• 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 running during restart.
• Deceleration time is too short.
• Stall prevention is disabled.
• 3-phase input voltage is out of specification.
• Input reactance required.
• Load fluctuations.
• 3-phase input voltage out of specification.
• Service call required.
• Service call required.
• Low impedance at the U/T1 phase.
• Service call required.
• Low impedance at the V/T2 phase.
• Low impedance at the W/T3 phase.
F616
F618
203