KTR-STOP
®
XS-A-F B-xx
Operating/Assembly instructions
KTR-N
Sheet:
Edition:
445118 EN
22 of 23
1
Please observe protection
note ISO 16016.
Drawn:
2020-12-03 Shg/Mro
Replacing:
---
Verified:
2020-12-03 Shg
Replaced by:
Operation of sensor
There are two micro switches in the housing of the
sensor. The spacer pin activates the switches in two
different positions.
Illustration 22: Pre-
/end wear sensor
Table 4: Switching status of pre- (switch S1) and end wear switch (switch S2) depending on the activat-
ing status of the brake.
Status of brake
Condition of
brake pad
Switch S1
Switch S2
Illustration 23: Switch position
1 - 4
2)
2 - 3
2)
2 - 5
2)
Sensor not
mounted
-
0
0
1
Brake not acti-
vated (unlocked)
-
1
1
0
Brake activated
(locked)
No wear
1
1
0
Pre-wear
0
1
0
End wear
0
0
1
1) Status of brake
on
= brake unlocked
off
= brake locked
2) Switch position
0
= unlocked
1
= locked
The sensor only shows the wear status reliably when the brake is activated (locked). If the brake is not activated
(unlocked), a statement about the condition of wear cannot be given.
The wear of the brake pad is only measured if the brake is activated. If the brake is not acti-
vated, there is no signal.
"Pre-wear" is indicated as soon as the brake pad has worn off so that the brake pads need
to be replaced.
!
The brake pad needs to be replaced immediately if the
signal indicating the status „end
wear“ is displayed. Please note chapter 5.1 Replacement of brake pads.
Fail-safe operation
A proper operating condition is only ensured if the state/wear sensor is wired properly. This provides a signal
since a switch (NO) is locked which is normally unlocked.
!
In case of damages like, for example, faulty cables, bad connections, etc. the signals need
to disappear.
6
Accessories - Sensor
6.1
Technical data „Pre-/end wear sensor”
