5 checking input – Toshiba SX 2000 User Manual

Page 175

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Chapt.6 Troubleshooting

6.5 Checking input

If the program is running, but the input signal is not read normally, check the follow­
ing points:

Check the input voltage at

ON/OFF when the LED is

abnormal.

When identical, the internal function

is normal. The input circuit of the

module may have a problem.

Check the installation of that input

module. The input module may have

Check the connection of the

expansion cable. The expansion

interface module may have a problem.

The CPU module is abnormal.

158

Sequence Controller S2T

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