Communication Related Tips; Control Related Tips - Autonics TM Series User Manual

7 Troubleshooting Tips
7.2

Communication Related Tips

No response or abnormal data received on an external device
while using the product:
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When communication between the main body and external
connecting device is not available:
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7.3

Control Related Tips

Output is not working while using the product.
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Make sure no errors are found on communication converter: RS485↔SERIAL
Converter (SCM-38I, sold separately), SERIAL↔USB Converter (SCM-US, sold
separately).
Do not tie the communications line with the AC power line.
Use a separate power supply for the communication converter and the main body if
possible.
If inner circuit is influenced or broken by strong external noise, please consult
Autonics service center. In addition, make sure that proper countermeasures are
taken for external noise. This product is designed with proper countermeasures for
external noise. However, the inner circuit could be damaged by continuous noise that
exceeds the range defined in the specifications.
Check if the power to the converter is on, and if it is wired correctly.
Check if the communications setting is correct.
Check if the main body and external devices are properly connected.
Check if the output display LED on the front is working.
If output display LED is not working, examine every setup parameter. If output display
is working, disconnect the wire from the controller to check the output (relay, SSR).
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