7
VFD-V Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
7-3
Code Displayed Error Explanations Treatments
Over-current during decel
Check whether the output wiring is of
poor insulation
Extend the decel time
Replace with the AC drive that
possesses greater output capacity
Over-current during
operation
Check whether the output wiring is of
poor insulation
Check whether the motor is blocked
during operation
Replace with the AC drive that
possesses greater output capacity
Grounding circuit
protections. This
message is displayed when
the AC drive detects that
the output terminal is
grounded and that the
grounding current exceeds
50% of the AC drive’s rated
current. Note: This is a
protection towards the AC
drive rather than the
personnel.
Check whether the connection to
the motor is short circuited or
grounded
Check whether the IGBT power
module is functioning right
Check whether the wiring on the
output side is of poor insulation
PG with a broken cord
Check the PG connection and
whether the motor is blocked
DC high-voltage side is
exceedingly low within the
AC drive
Check whether the input power
voltage is normal
Check whether the loading will be
put on another unexpected heavy
loading
Whether the 3-phase model is of
the single-phase power input or the
phase-lacking
IC data WRITE fault within
the interior memory
Return to the factory
IC data READ fault within
the interior memory
Press the RESET button to reset
the parameter to the factory setting
Return to the factory if the previous
method is not working
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