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T1/T1S User’s Manual
10. Troubleshooting
10.1 Troubleshooting procedure
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/T1S, check the following points:
PWR (power) LED Follow the procedure in
10.1.1 Power supply check
Lit
RUN LED Follow the procedure in
10.1.2 CPU check
Lit
User program Follow the procedure in
10.1.3 Program check
Normal operation
Input operation Follow the procedure in
10.1.4 Input check
Normal operation
Output operation Follow the procedure in
10.1.5 Output check
Also refer to section 10.1.6 for environmental problem.
!
CAUTION
1. Pay special attention during the troubleshooting to minimize the risk of
electrical shock.
2. Turn off power immediately if the T1/T1S 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/T1S or related equipment is failed.
Toshiba will not guarantee proper operation nor safety for unauthorized
repairing.
Not lit
Not lit
Not normal
Not normal
Not normal
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net