![background image](http://html.mh-extra.com/html/sick/tr10-lock/tr10-lock_operating-instructions-manual_1264350028.webp)
Fault indicators are repeated until a reset is performed.
b
To perform a reset, interrupt the voltage supply for at least 3 s.
8.2.2
Fault indicators in the case of cascading
If a fault occurs on a device in a cascade, the relevant device displays the fault and
switches the output signal switching devices off (DIAG light emitting diodes flash red).
All downstream devices switch their output signal switching devices off (STATUS light
emitting diodes flash green).
!
1
2
3
4
5
Figure 22: Fault indicators for cascaded safety locking devices. In the example: internal fault on
safety locking device 3
Device
Device
Device
Device
Device
STATUS light
emitting
diodes (green)
DIAG light
emitting
diodes (red)
Fault in device No
No
Yes
No
No
Protective
device closed
and lock acti‐
vated
Yes
Yes
No statement
possible
Yes
Yes
State of OSSD
signal at
inputs
ON
ON
ON
OFF
OFF
OSSD output
state
ON
ON
OFF
OFF
OFF
Table 7: Light emitting diode displays in the case of cascading
8.2.3
Fault indicators
STATUS light
emitting
diodes (green)
DIAG light
emitting
diodes (red)
Possible cause
OSSD state
No supply voltage
OFF
Flashes
three times
Flashes
three times
Start sequence with self-test
OFF
Protective device closed and lock activated
ON
Table 8: Fault indicators
8
TROUBLESHOOTING
28
O P E R A T I N G I N S T R U C T I O N S | TR10 Lock
8019972/2016-07-19 | SICK
Subject to change without notice