Maintenances Mode; Led Indication - ABB Knox Original Instructions Manual

Maintenances mode

If any work is to be carried out inside the hazardous area, a padlock can be put
in place in any of the two locking bolts to prevent the door from locking.
This can also act as an indication of presence within the hazardous area
(only helpful if operators are informed of the use of padlocks).
Warning! The use of padlocks is not a part of the safety function and only serves
as an additional measure to reduce the risk of entrapment.

LED indication

LED description
Frame part – left
2TLC172250M0201, rev. D
2013-08-12
Frame part - right
LED Indication
Green
LED
Green-Red (flash)
1
Red
Green
Green-Pause-Green
(flash)
Red
LED
2
Red-Pause-Red
(flash)
20
Description
Locked (and reset)
Locked, no dynamic
signal in
Unlocked
Reset
Reset (dirt indication)
Not reset
Not reset (dirt indication)
www.abb.com/jokabsafety