Toshiba PROSEC T1-16S User Manual page 284

10. Troubleshooting
10.1 Troubleshooting procedure
!
CAUTION
If a trouble occurs, determine whether the cause lies in the mechanical side or in the
control system (PLC) side. A problem may cause a secondary problem, therefore, try
to determine the cause of trouble by considering the whole system.
If the problem is found in the T1-16S, check the following points:
Normal operation
Normal operation
Also refer to section 10.1.6 for environmental problem.
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T1-16S User's Manual
1. Pay special attention during the troubleshooting to minimize the risk of
electrical shock.
2. Turn off power immediately if the T1-16S or related equipment is
emitting smoke or odor. Operation under such situation can cause fire
or electrical shock.
3. Turn off power before removing or replacing units, modules, terminal
blocks or wires. Failure to do so can cause electrical shock or damage
to the T1 and related equipment.
4. Contact Toshiba for repairing if the T1-16S or related equipment is
failed. Toshiba will not guarantee proper operation nor safety for
unauthorized repairing.
PWR (power) LED
Lit
RUN LED
Lit
User program
Input operation
Output operation
Follow the procedure in
Not lit
10.1.1 Power supply check
Follow the procedure in
Not lit
10.1.2 CPU check
Follow the procedure in
Not normal
10.1.3 Program check
Follow the procedure in
Not normal
10.1.4 Input check
Follow the procedure in
Not normal
10.1.5 Output check
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