Page 6–16
DuRApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Chapter 6: Maintenance and Troubleshooting
faulT Codes
The GS4 drive has a comprehensive fault diagnostic system that include a variety of fault
messages. When a fault is detected, the GS4 drive will shut down in order to protect internal
components. The following faults are displayed as shown on the GS4 digital keypad display.
LOCAL
①
Display error signal type
①
Fault
②
Abbreviate error code
e code is displayed as shown on GS4-KPD
②
ocA
③
OC at Accel
③
Display error description
Gaps in the fault ID numbers below are set aside as “reserved” faults for possible future use.
Should your GS4 drive repeatedly display a reserved fault, please note the fault ID number and
contact AutomationDirect technical support.
Fault Codes
Display on GS4-KPD Kepad
Fault Code
in Status
Monitor 1
Fault
Description
Corrective Action
Can be
Bypassed
in Fire
Mode
(Yes / no)
n/a 0
no error none needed n/a
LOCAL
Fault
ocA
OC at Accel
1
Over-current
during acceleration
(Output current
exceeds
triple rated
current during
acceleration�)
1) Short circuit at motor output: Check for
possible poor insulation at the output�
2) Acceleration Time too short: Increase the
Acceleration Time�
3) GS4 drive output power is too small: Replace
the GS4 drive with the next higher power
model�
Yes
LOCAL
Fault
ocd
OC at decel
2
Over-current
during
deceleration
(Output current
exceeds
triple rated
current during
deceleration�)
1) Short circuit at motor output: Check for
possible poor insulation at the output�
2) Deceleration Time too short: Increase the
Deceleration Time�
3) GS4 drive output power is too small: Replace
the GS4 drive with the next higher power
model�
Yes
LOCAL
Fault
ocn
OC at Speed
3
Over-current
during steady state
operation (Output
current exceeds
triple rated current
during constant
speed�)
1) Short circuit at motor output: Check for
possible poor insulation at the output�
2) Sudden increase in motor loading: Check for
possible motor stall�
3) GS4 drive output power is too small: Replace
the GS4 drive with the next higher power
model�
Yes
LOCAL
Fault
GFF
Ground Fault
4
Ground fault
W hen (one of) the output terminal(s) is
grounded, short-circuit current is more than
50% of the GS4 drive rated current, the GS4
drive power module may be damaged�
N OTE: The short-circuit protection is provided
for AC motor drive protection; not for
protecting the user�
1) Check the wiring connections between the
GS4 drive and motor for possible short
circuits, also to ground�
2) Check whether the IGBT power module is
damaged�
3) Check for possible poor insulation at the
output�
Yes
(continued next page)
To Next Page
Loading...
Need help?
General
