Troubleshooting 4-5
Decel Inhibit 24
➂
The drive is not following a
commanded deceleration
because it is attempting to limit
bus voltage.
1. Verify input voltage is within drive
specified limits.
2. Verify system ground impedance
follows proper grounding
techniques.
3. Disable bus regulation and/or add
dynamic brake resistor and/or
extend deceleration time. Refer to
the Attention statement on page
P-4
Drive OverLoad 64 Drive rating of 110% for 1 minute
or 150% for 3 seconds has been
exceeded.
Reduce load or extend Accel Time.
Drive Powerup 49 No fault displayed. Used as a Power Up Marker in the Fault Queue
indicating that the drive power has been cycled.
Excessive Load 79 Motor did not come up to speed in
the allotted time during autotune.
1. Uncouple load from motor.
2. Repeat Autotune.
Encoder Loss 91 Requires differential encoder.
One of the 2 encoder channel
signals is missing.
1. Check Wiring.
2. Replace encoder.
Encoder Quad Err 90 Both encoder channels changed
state within one clock cycle.
1. Check for externally induced
noise.
2. Replace encoder.
Faults Cleared 52 No fault displayed. Used as a marker in the Fault Queue indicating that
the fault clear function was performed.
Flt QueueCleared 51 No fault displayed. Used as a marker in the Fault Queue indicating that
the clear queue function was performed.
FluxAmpsRef
Rang
78 The value for flux amps
determined by the Autotune
procedure exceeds the
programmed [Motor NP FLA].
1. Reprogram [Motor NP FLA] with
the correct motor nameplate
value.
2. Repeat Autotune.
Ground Fault 13
➀
A current path to earth ground
greater than 25% of drive rating.
Check the motor and external wiring
to the drive output terminals for a
grounded condition.
Hardware Fault 93 Hardware enable is disabled
(jumpered high) but logic pin is
still low.
1. Check jumper.
2. Replace Main Control Board.
Hardware Fault 130 Gate array load error. 1. Cycle power.
2. Replace Main Control Board.
Hardware Fault 131 Dual port failure. 1. Cycle power.
2. Replace Main Control Board.
Heatsink OvrTemp 8
➀
Heatsink temperature exceeds
100% of [Drive Temp].
1. Verify that maximum ambient
temperature has not been
exceeded.
2. Check fan.
3. Check for excess load.
Fault
No.
Type
(1)
Description Action
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