Chapter 8 Troubleshooting and Countermeasures
-81-
Constant Speed over Current
Check if the output loop of the inverter is
short circuited or has leakage current
Perform troubleshooting, and install
output reactor if the line is too long
If the motor parameters are identified
Identify the motor parameters
If load is added suddenly
during the running
Remove the additional load
If the inverter load can be lightened
Lighten the load
The inverter model is
rather small
Yes
Yes
Yes
Yes
No
No
No
o
No
Fig.8-4 Constant speed over current ˄ERR04˅
No
No
No
Yes
Yes
Yes
Acceleration over Voltage
If the input voltage is too high Adjust the voltage to normal range
If there are external forces
driving the motor to run during
the acceleration process.
Remove the external forces
or install brake resistor
If the acceleration time is too short
Prolong the acceleration time
If the brake unit and brake
resistor are installed
Install brake unit and brake resistor
Ask for technical
support
Fig.8-5 Acceleration over voltage˄ERR05˅
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