3 checking the s2t cpu – Toshiba SX 2000 User Manual
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Chapt.6 Troubleshooting
6.3 Checking the S2T CPU
When the "POWER" LED of the power supply module is lit, but the "RUN" LED of the
CPU module is out, check the following items.
When it blinks even if power supply
is on, CPU module is defective.
Replace the CPU.
An error has occurred.
Check the content of the Event
History.
Shift to RUN.
It starts up in the HALT mode
despite the setting of the operation
mode switch.
Therefore, either shift the operation
mode switch HALT RUN or start
RUN from the engineering tool.
It is in the HOLD mode.
Release HOLD device
(S[26]. B[15] or %MX2.26.15)
using the engineering tool.
156
Sequence Controller S2T