12 Troubleshooting
12 - 36
High-function General-purpose Inverter RX2 Series User’s Manual
A shutoff function
is at work.
The main power supply is not
turned ON.
When the power supply is separated to R, S, T and R0,
T0 (J51 connector section), the inverter can not be
operated if the R, S, T, side power is down. The power
supply check is required.
[RS] terminal is ON.
If the [RS] terminal is ON, the inverter enters the reset
mode and does not accept operation commands. The
[RS] terminal needs to be turned OFF.
[FRS] terminal is ON.
If the [FRS] terminal is ON, the inverter enters the
free-run stop mode and does not accept operation
commands. The [FRS] terminal needs to be turned
OFF.
[CS] terminal is ON.
If the [CS] terminal is ON, the inverter enters the mode
switched to commercial power supply shutoff and does
not accept operation commands. Check the commer-
cial switching function.
The [ROK] terminal has been
assigned and is turned OFF.
When the [ROK] terminal is used, if the terminal func-
tion is OFF, the inverter does not accept operation
commands. Check the operation permission signal.
STO terminal is not wired or is in
OFF state.
If you do not use the function of STO terminal, you
need to attach a short-circuit wire to it.
The inverter is tripping.
When the inverter is tripping, it does not accept opera-
tion commands. Identify the factors for trip.
Shutoff functions are not on.
If shutoff functions are not on and the motor is not
driven, there is another factor. Return to The motor
doesn’t rotate although an operation command was
entered.
Occurrence Estimated cause(s) Exemplar measures to be taken
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