C1
ESPE
Muting
A1
A2
B1
B2
!
"
§
t
Figure 16: Signal sequence with configured supplementary signal C1 during a muting cycle
!
Start muting cycle
"
Acceptance
§
End muting cycle
4.3.5.4
Override
Overview
An override is a manual muting triggering after an error in the muting conditions. The
protective device is bypassed and the system can be cleared and an error-free status
can be achieved.
Override is always active.
Important information
WARNING
Risk of the machine starting unexpectedly
b
Install the override control switch outside of the hazardous area so that it cannot
be actuated by a person that is inside the hazardous area.
b
Make sure that the operator can oversee the entire hazardous area when actuat‐
ing the control switch.
Performing an override with the integrated override function
An error occurs while a muting condition is valid. The cause of the error is indicated by
the LEDs on the active unit. If an optional muting lamp is connected, this muting lamp
also flashes.
At the same time, the output signal switching devices (OSSDs) switch to the OFF status.
The system is in the override required status and waits for the operator to actuate the
override control switch or for the cause to be remedied, e.g. for the belt to be cleared.
The status override required is only triggered by the system if the following 3 conditions
are present:
•
An error occurs, i.e. at least one muting sensor is active and at least one is deacti‐
vated
•
Muting ends
•
The ESPE is interrupted by an object
4
PROJECT PLANNING
30
O P E R A T I N G I N S T R U C T I O N S | deTem4 LT Muting A/P
8024802/2020-07-17 | SICK
Subject to change without notice