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8 Maintenance
Maintenance precautions
Maintenance shall be done in accordance with a risk assessment for the individual application.
Warning!
The safety functions and the mechanics must be tested regularly, at least
once every year to confirm that all the safety functions are working
properly.
Warning!
In case of breakdown or damage to the product, contact ABB. Do not try to
repair the product. It might accidentally cause permanent damage,
impairing the safety of the device and in turn lead to serious injury to
personnel.
Troubleshooting
LED on Adam
Lights red
No light
Lights green/red
(flashing)
Fast flashing red
Fast flashing green
Warning!
Never bypass the safety circuit. Always replace a defect unit with a new one.
2TLC172272M0201
Rev.H
Expected causes of faults
Eva away from Adam
Metal between Adam and
Eva
Loss of power supply
No input (Eva in position
with Adam)
Fail safe mode
At end of detection
distance
Corrective actions
Move Eva closer to Adam
Remove the metal
Check +24 VDC / 0 VDC power supply
Check the unit before in the safety
circuit (make it active).
1.
Power cycle
2.
Erase and reteach code
3.
Replace unit
Move Eva closer to Adam.
24
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