Toshiba 6F3B0253 user manual Troubleshooting procedure

6F3B0253

10.Troubleshooting

10.1Troubleshooting procedure

!	CAUTION	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.

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:

PWR (power) LED

Lit

RUN LED

Lit

User program

Normal operation

Input operation

Normal 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
Not normal	Follow the procedure in
	10.1.4 Input check
Not normal	Follow the procedure in
	10.1.5 Output check

Also refer to section 10.1.6 for environmental problem.

282 T1-16S User’s Manual