© Panasonic Industrial Devices SUNX Co., Ltd. 2016
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Chapter 7 Troubleshooting
<Reference>
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Check the wiring.
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Check the power supply voltage and the power supply capacity.
<All indicators are OFF>
Cause
Remedy
Power is not being supplied.
Check that the power supply capacity is sufficient.
Connect the power supply correctly.
Supply voltage is out of the specified range.
Set the supply voltage correctly.
Connector is not connected securely.
Connect the connector securely.
<Input indicator (orange) 1 to 8 blinks>
Cause
Remedy
The time for which the safety input is ON exceeds the input
mismatch allowable time.
Turn OFF the blinking input block once and turn it
ON within the input mismatch allowable time.
Wiring connecting safety contact or safety sensor is discon-
nected while safety input is ON. (One of duplex inputs is
turned OFF.)
Recheck the wiring of the safety inputs, turn OFF
the blinking input block, and then turn it ON.
<Interlock indicator (yellow) 1 / 2 lights up>
Cause
Remedy
Reset is not released.
Reset input terminals are not wired.
Correctly wire reset input terminals (between
INT11 and INT12 or between INT21 and INT22).
Use NC contact of forced guide type relay to as-
sure the system safety.
Relay is welded.
Replace the relay.
The response time of relay is long.
Replace the relay with a one whose response
time is appropriate.
Rise-up reset signal has not been
entered. (Manual)
Use a momentary switch.
Replace the switch.