Chapter 14 Fault Codes And Descriptions - Delta C2000 Series User Manual

Chapter 14 Fault Codes and Descriptions

* Refer to setting of Pr06-17~Pr06~22.
ID* Fault Name
Fault
1
ocA
Oc at accel
Fault
2
ocd
Oc at decel
Fault
3
ocn
Oc at normal SPD
Fault
4
GFF
Ground fault
Fault
5
occ
Short Circuit
Dis p la y e rro r sig n a l
A b b re v ia te e rro r c o d e
T h e co d e is d isp la ye d a s s h o wn o n K P C-CE 0 1 .
Dis p la y e rro r d e s c rip tio n
Fault Descriptions
Over-current during
acceleration
(Output current exceeds
triple rated current during
acceleration.)
Over-current during
deceleration
(Output current exceeds
triple rated current during
deceleration.)
Over-current during
steady state operation
(Output current exceeds
triple rated current during
constant speed.)
Ground fault
Short-circuit is detected
between upper bridge
and lower bridge of the
IGBT module
Chapter 14 Fault Codes and Descriptions
Corrective Actions
1. Short-circuit at motor output: Check for possible
poor insulation at the output.
2. Acceleration Time
Acceleration Time.
3. AC motor drive output power is too small: Replace
the AC motor drive with the next higher power
model.
1. Short-circuit at motor output: Check for possible
poor insulation at the output.
2. Deceleration Time
Deceleration Time.
3. AC motor drive output power is too small: Replace
the AC motor drive with the next higher power
model.
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. AC motor drive output power is too small: Replace
the AC motor drive with the next higher power
model.
When (one of) the output terminal(s) is grounded,
short circuit current is more than 50% of AC motor
drive rated current, the AC motor drive power module
may be damaged.
NOTE: The short circuit protection is provided for AC
motor drive protection, not for protecting the user.
1. Check the wiring connections between the AC
motor 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.
Return to the factory
14-1
C2000 Series
too short: Increase
too short: Increase
the
the