40
Error Trip Messages of Drive
Display
Description
Cause
Troubleshooting
(OC)
RUN
CRG
MAIN
SV
PV
Drive over
current
The output current
of drive during
operation exceeds
220% of driv
e’s
rated current.
●The output
terminals of drive
are short.
●The load is too
heavy.
●The acceleration
time is too short.
●Drive starts at zero
speed while the
motor is still
running in rotation
condition.
●Wrong wiring or
bad insulation.
●Starting voltage is
too high.
●The motor terminal
installs an
advance-phase or
filter capacitor.
●Check wires of
U/T1,V/T2,W/T3
terminals to verify if
there is short
between terminals.
●Check the motor
and drive
compatibility.
●Check for possible
over loading
condition at the
motor
●Check if the the
acceleration time is
too short.
(GF)
RUN
CRG
MAIN
SV
PV
Grounding fault
●The three-phase
output current is
unbalance and
exceeding the
detection level of
grounding fault.
●Grounding fault
protection: F098
Check for possible
bad insulation at
motor
’s output side
or wire.
Check the insulation
value of
motor’s
wire and motor.
(OE)
RUN
CRG
MAIN
SV
PV
Over voltage
●The internal DC
bus voltage of
drive is over the
protection level.
●100V / 200V
series: About
DC410V.
●400V series:
About DC820V.
●The deceleration
time of motor is
too short causing
the regeneration
voltage on DC bus
too high.
●Power voltage is
too high.
●Surge voltage
occurs in drive’s
input power side.
●Increase
deceleration time.
●Add dynamic brake
unit.
●Check if the power
input is within
drive’s rated input
range.
●Add AC reactor at
power input
terminal.
