FC100 Series User Manaul
Operation
Panel
Name
Indicati on
OTO
during stop
OT1 during
accelerati on
OT2 during
Motor overload
decelerati on
OT3
during
constant
speed
OHO during
stop
OH1 during
accelerati on
Inverter
OH2 during
overheat
decelerati on
OH3 during
constant
speed
ES
Emergency stop
Communicati on
CO
error
4- 20mA wire
20
broken
Parameter
Pr
write error
Wrong
parameter
Err
group
Possible fault reason
1: The motor for use
under overload
2: Acceleration time
is too short
3: Motor protection
setting is too small
4: V/F curve is
incorrectly set
5: Torque boost is too
fast
6: Bad motor
insulation 7: Motor
setting is too small
1: Cooling fan broken
2: Heatsink clogging
3: The ambient
temperature is high
1: Inverter is in
Emergency stop
condition
1: Communication line
connection has problem
2:Communication parameter is
incorrectly set
3: Transmission
format is wrong
1: Terminal is loose;
signal input line is
bad connected
Parameter setting is
wrong
parameter does not exist or the
factory setting parameter
105
Chapter 8 Troubleshooting and Fault Informatin
Correc tive action
weight.
1: Reduce the load
2: Increase acceleration time
3: Increase protection setting
curve
4: Correctly set V/F
rate
5: Reduce torque boost
6: Check motor insulation and
replace motor
7; Use larger inverter
or motor
1: Replace the cooling
fan.
2: Clean thr heatsink
3: Set the ambient
temperature
to within the specifications.
1; After release
Emergency stop, start
up as regular procedure
1: Perform wiring of
the RS - 485 terminals
properly.
again
2: Set parameter over
3: Check data transmission format
1: Perform wiring of
the 4 - 20mA terminals
properly.
After stopping operation, make
parameter setting.
Quit this parameter
8
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