
Chapter 5 Trouble shooting and maintenance
5-3
3.
Errors which can only be recovered manually but cannot be auto-recovered
Display Error
Cause
Remedy
Over-current
during stop
1. Detection circuit
malfunctions
2. Bad connection for CT
signal cable
Send the inverter back for
repair
Motor overload
1. Heavy load
2. Improper settings of F43
1. Increase motor capacity
2. Set F43 correctly according
to motor nameplate.
Inverter overload Heavy load
Increase inverter capacity
Over current
limit
1. Heavy Load
2. Continuous over load
1. Increase motor capacity
2.Increase ACC/ DEC time
F02~F03
3.set stall prevention function
C1~C6
Under voltage
during operation
1. Power voltage too low
2. Power voltage varies
widely
1.Improve power quality.
2.Set a longer acceleration time
3. Add a reactor at the power
input side
4. Increase inverter capacitor
Note
: 〝
@
〞
means when the inverter broken ,the failure contact does not action.
OC
OL1
OCL
OL2
LVC
Содержание 7300EV
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