Troubleshooting - Omron CJ1W-NC271 - 12-2009 Operation Manual

Troubleshooting

12-5 Troubleshooting
12-5-1 Initial Troubleshooting
The Servo Drive cannot communicate.
The Servomotor will not operate in
response to commands.
Is the RUN indicator lit?
N
Are any other
indicators lit?
N
Is power being supplied to
the PLC correctly?
N
Supply the correct
power supply
voltage to the PLC.
This section provides troubleshooting flowcharts when Servo Drive communi-
cations cannot be established or movement is not possible even when move-
ment commands are sent from the ladder program.
The following troubleshooting flowchart is for errors that occur during initial
checking.
This flowchart can be used to determine whether the PCU is faulty and cannot
be started.
Y
Y
Y
Is the ERH indicator lit?
N
Y
Is the unit number
set correctly?
Are the I/O tables
set correctly?
Make sure that the PCU
is installed correctly,
and turn the power OFF
and ON again.
If the problem occurs
again, the probable
cause is a faulty PCU
Unit. Replace the PCU.
N
Y
N
Y
Create the I/O Check whether the
tables for the CPU PCU's unit number is
Unit again. the same as another
Unit.
Section 12-5
See 12-5-2
Troubleshooting
during PCU
Operations.
501