2TLC172131M0201, rev. A
12
www.abb.com/lowvoltage
2011-09-20
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
Expected causes of faults
Checking and measures to take
Mute LED off (on Tina 5A)
No dynamic signal to S1
Check dynamic signal input
Mute resistor removed
Mount a new 820 / 2 W resistor at terminals
L1-L2
Mute LED off (external)
Mute lamp broken
Replace the mute lamp
Wrong mute lamp
(1 W < Watt < 5 W)
Replace the mute lamp with a suitable one
No lights
Loss of power supply
Check 24 VDC / 0 VDC power supply
Weak lights
The unit is defect
The unit needs to be replaced. Contact
ABB/Jokab Safety.
Warning!
Replace defected unit with a new one and never bypass the safety circuit.
