Toshiba NV Series Hardware Manual page 129

Chapter 5 Troubleshooting
5.1 Troubleshooting Procedure
If a failure occurs, it is important to determine the source of failure in the T series migration
system for type1 light controller module PUM12, whether it is caused by the controlled or
the controller.
In some cases, a single failure may cause the secondary failure. Accordingly, a
comprehensive approach across the system is required for determining the cause of
failure.
If there is a possibility that failure may be caused by controller module PUM12 or I/O
module, check the following by referring to "Unified controller nv series type1 light
Controller Unit User's Manual - Basic Hardware -" (6F8C1497):
Check:
■ Power system
■ Controller module
■ Programs
■ Input signals
■ Output signals
■ External factors
• If the controller does not operate normally, take actions by checking 5.2 "Confirmation of Failure."
• If a failure occurs, contact a Toshiba branch office (store) or service agent to request return or
repair.
• Normal system operation is not guaranteed if the failed product is repaired not by Toshiba or a
designated service agent.
110
6F8C1497
Be sure to turn off the power before mounting or
dismounting modules, terminal blocks, wiring cables and
Caution
terminal block signal conversion adapter.
Failure to do so may cause malfunction or system failure.
Remark
Instruction