Q9 Plus ASD Installation and Operation Manual
253
EEP2, EEP3
Main Read Err
Initial Read Error
(Parameter Initialization).
• Service call is required.
ERR8
Net Card Err
Network Option Card Error.
• Optional device malfunction.
• Improper system settings (at ASD or optional
device).
• Loose or improper connection.
OH2
Option
Over-Heat
Over temperature error at
PTC1 or PTC2 (see
F637
and
F638
).
• Over temperature condition detected by option
board.
EPHO
Output Phase
Output Phase Failure.
• Mis-wired output phase.
• Loose output phase connection.
OCL
Output Short
Output Short Circuit at
U-V-W Phases.
• ASD is starting into a rotating motor.
• ASD/Motor is improperly matched to the
application.
• Phase-to-phase short (U/T1, V/T2, or W/T3).
• Acceleration time is too short.
• Voltage Boost setting is too high.
• Motor/machine is jammed.
• Mechanical brake is engaged while the ASD is
running.
• Short Circuit Detection adjustment is required
(
F613
).
• 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.
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.
Table 19. Fault Codes (Continued)
LED
Screen
LCD
Screen
Fault Description
Possible Cause
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