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Testing of the safety functions
Make sure the safety unit is working properly by following these steps:
Control that the muting of the desired unit is working properly (like the example above).
Control that Vital/Pluto is working properly when the muting is active.
Troubleshooting
LED indication
Mute LED off (on Tina 5A)
Mute LED off (external)
No lights
Weak lights
Warning! Replace defected unit with a new one and never bypass the safety circuit.
2TLC172131M0201, rev. A
2011-09-20
Expected causes of faults
No dynamic signal to S1
Mute resistor removed
Mute lamp broken
Wrong mute lamp
(1 W < Watt < 5 W)
Loss of power supply
The unit is defect
12
Checking and measures to take
Check dynamic signal input
Mount a new 820
/ 2 W resistor at terminals
L1-L2
Replace the mute lamp
Replace the mute lamp with a suitable one
Check 24 VDC / 0 VDC power supply
The unit needs to be replaced. Contact
ABB/Jokab Safety.
www.abb.com/lowvoltage
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