Delta Electronics AFE150A43A [105/131] Chapter 13 fault codes and descriptions

Delta Electronics AFE370A43A [105/131] Chapter 13 fault codes and descriptions
Chapter 13 Fault Codes and Descriptions AFE2000 Series
13-103
Chapter 13 Fault Codes and Descriptions
OcA
Oc at accel
Fault
Abbreviate error code
The code is displayed as shown on KPC-CE01.
Display error signal
Display error description
Fault Name Fault Descriptions Corrective Actions
ocn
Oc at normal SPD
Fault
Over-current during steady state
operation
(Output current exceeds 2.5 times
of the rated current during
constant speed.)
1. Check for possible poor insulation at the
output.
2. Sudden increase in motor loading: Check
for possible motor stall.
3. Replace the AFE2000 with the next
higher power model.
ocS
Oc at stop
Fault
Hardware failure in current
detection
Return to the factory
GFF
Ground fault
Fault
Ground fault
When (one of) the output terminal(s) is
grounded, short circuit current is more than
50% of AFE2000 rated current.
NOTE: The short circuit protection is
provided for AFE2000 protection, not for
protecting the user.
1. Check whether the IGBT power module
is damaged.
2. Check for possible poor insulation at the
output .
occ
Short Circuit
Fault
Short-circuit is detected between
upper bridge and lower bridge of
the IGBT module
Return to the factory
ovn
Ov at normal SPD
Fault
DC BUS over-voltage at constant
speed (230V: 425Vdc460V:
850Vdc)
1. Check if the input voltage falls within the
rated AFE2000 input voltage range.
2. Check for possible voltage transients.
ovS
Ov at stop
Fault
Hardware failure in voltage
detection at stop status.
1. Check if the input voltage falls within the
rated AFE2000 input voltage range.
2. Check for possible voltage transients.
Lvn
Lv at normal SPD
Fault
DC BUS voltage is less than
Pr.03-00 at constant speed
1. Check if the input voltage is normal
2. Check for possible sudden load

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