6-14 i3070 Series 5i Help
Troubleshooting
Troubleshooting PHS-16 and PHS-17
These sensors detect if the rear and front safety hooks on the Press are
disengaged.
Figure 6-4 Rear Safety Hook
Check the sensor response
• Disengage the hook to trigger the sensor and see whether it responds.
If the sensor doesn’t respond
Check the sensor response after each step and continue only if the sensor
fails to respond.
1 Check the connectors and ensure there is power to the sensor.
2 Replace the sensor.
If the sensor responds
1 Trigger the sensor again and check if the PLC responds (through the
PLC I/O indicator).
If the PLC responds, it was likely an intermittent failure and no further
action is needed.
2 If the PLC does not respond, perform a continuity check on the PLC’s
connector signal terminals.
3 If the continuity check fails, check the cables and connectors.
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