46
Display Error Cause Remedy
PbL
Pressure Loss
Stop
When feedback pressure is
lower than 18-A (Pressure
losing ratio) and longer then
pressure losing detection
time.
1. Decrease the value of min.
pressure limit
2. Check pressure meter
5.1.3 Errors which can be recovered manually but not automatically
Display Error Cause Remedy
Over-current
during stop
1. Detection circuit
malfunctions
2. Bad connection for CT
signal cable
1. Check the noise between
Power line and motor line
2. Send the inverter back for
repairing
Motor overload Heavy load Increase the motor capacity
Inverter overload
Heavy Load
Increase the inverter capacity
Over torque Heavy Load Increase the inverter capacity
Voltage too
low during
operation
1. Power voltage too low
2. Power voltage varies
widely
3. Main Circuit Relay error
1. Improve power quality
2. Set a longer acceleration
time
3. Increase inverter capacitor
Add a reactor at the power
input side Send the inverter
back for repairing
Heatsink
temperature
too High
during
operation
1. Heavy load
2. Ambient temperature too
high or bad ventilation
1. Check if there are any
problems with the load
2. Increase inverter
capacity
3. Improve ventilation
conditions
5.1.4 Special conditions
Display Error Description
Zero speed stop
Happened when preset frequency <0.1Hz
PID feedback
loss
PID feedback loss detect
Inverter
mal-function
When one unit show " 1BrE " error the other unit can operate
continuously.
5.1.5 Operation errors
Display Error Cause Remedy
Key
operation error
Attempt to modify the parameter
can not be modified during
operation (refer to the parameter
list).
Modify the parameter while
STOP
Err1
1BrE
OC
OL1
OL2
OL3
OH-C
LV-C
STP0
PDER
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