X5 AC Drive User’s Manual
Chapter 8: Troubleshooting
DPD00089A
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126 -
© 2009 Vacon Incorporated All Rights Reserved
3
Curr Calibr
Current calibration
fault
0
Current calibration fault on phase
T1/U
• Check the motor connections to
the terminal strip of the drive
and at the motor.
• Have motor checked.
• Consult factory for repair or
replacement of drive.
1
Current calibration fault on phase
T3/W
2
Current calibration fault on phase
T2/V
4
Power Supp
Power supply fault
0
5V supply is below 4 Vdc for more
than 100 ms
• Increase resistance between
REF and analog inputs.
• Check wiring to REF terminals.
• Consult factory.
6
IOC Trip
Instantaneous
overcurrent trip
0
Short circuit was detected on
power-up
• Remove the short from the
power wiring
• Check for shorted motor
• Consult factory.
1
Short circuit was detected during
operation
7
MOL
MOL contact fault
0
The MOL digital input was
activated, depending on pull-up or
pull-down logic configuration
Reset MOL contact or remove
condition causing the MOL
contact activation.
8
Model ID
ID # out of range
0,1,2
Control board is not reading the
drive ID properly
Consult factory for repair or
replacement.
10
Res Lockout
Restart lockout
0
The number of fault restarts is
greater than the limit defined in
the customer parameter.
Check the actual fault in the fault
log and use the appropriate
remedy.
11
Ground
Ground fault
0
The drive has detected current
imbalance between output
phases. Imbalance determined to
be current flow to ground.
• Check for unbalanced currents.
• Check for grounded motor
leads or motor.
• Consult factory.
12
Vac Imblnce
Input voltage
imbalance
0
The drive has detected a single-
phase condition or a voltage
imbalance outside the drive’s
rating while running a load that
could be damaging to the drive.
Check input voltage and current
for imbalance, and correct.
13
OverVoltage
Overvoltage
condition
0
• The drive has detected an
overvoltage condition during
power-up
(not auto-resettable)
.
Verify incoming line power is
within specification. Add reactor
or transformer to correct.
1,3
• The drive has detected an
overvoltage condition during a
running condition.
Verify incoming line power and
check for regenerative load.
Reduce Regen load or add
dynamic braking resistors. Regen
Current Limit may help; consult
factory.
2
• The drive has detected an
overvoltage condition on
power-up on the load side.
Verify incoming line power is
within specification. Add reactor
or transformer to correct.
Table 8-1: X5 Fault Codes
(Page 2 of 6)
Code
Fault Display
Description
Adv. Fault
Code
Explanation
Suggestions for Recovery
Note:
Shaded faults are auto-resettable, except where noted.