Hitachi WJ200-001S Instruction Manual page 308

Troubleshooting Tips
The table below lists typical symptoms and the corresponding solution(s).
1. Inverter does not power up.
Possible Cause(s)
Power cable is incorrectly wired.
Short bar or DCL between [P] and [PD]
is disconnected.
Power cable is breaking.
2. Motor does not start.
Possible Cause(s)
Incorrect RUN command source is
selected.
Incorrect frequency source is selected.
Frequency setting is 0Hz.
RUN command is not set to input
terminal.
"Multi-speed input(s) (02 to 05:CF1 to
CF4)" is (are) set to input terminal(s)
and active.
Both FWD and REV input are active.
Rotation direction restriction (b035) is
enabled.
Incorrect input wiring or short bar
position
Incorrect analog input or variable
resistor wiring
RUN command source is operator, but
input terminal is set to "Force terminal"
and active.
RUN command source is terminal, but
input terminal is set to "Force operator"
and active.
Inverter is in trip status.
(With ALARM LED and "Exxx"
indication)
Corrective Action
Check input wiring
Install short bar or DCL between [P] and [PD] terminal.
Check input wiring.
Corrective Action
Check RUN command source (A002) for correct source.
Ex. Terminal (digital input) : 01
Operator (RUN key) : 02
Check frequency source (A001) for correct source.
Ex. Terminal (analog input) : 01
Operator (F001) : 02
If frequency source is terminal (A001=01), check analog
voltage or current signal at [O] or [OI] terminals.
If frequency source is operator (A001=02), set frequency in
F001.
Depending on frequency source, input proper frequency
reference.
If frequency source is multi-speed operation, set frequency
in A020 to A035 and A220.
If RUN command source is terminal (A002=01), set
"forward" (00:FW) or "reverse" (01:RV) to any input
terminals. In case of 3-wire control, set "3-wire start"
(20:STA), "3-wire stop" (21:STP) and "3-wire FW/RV"
(22:F/R) to any input terminals.
Deactivate the input(s).
If RUN command source is FWD/REV input, activate
either FWD or REV input.
Check b035.
Wire inputs correctly and/or install short bar. (ON/OFF
status of inputs are monitored in d005.)
Wire correctly.
In case of analog voltage or variable resistor input, check
voltage between [O] and [L] terminal.
In case of analog current, check current between current
source and [OI] terminal.
Deactivate the input.
Deactivate the input.
Reset inverter by STOP/RESET key and check error code.
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