The status of the protective fields is transmitted using EFI and can be combined in the
Flexi Soft safety controller as required. The signal of the Flexi Soft safety controller
safety outputs is transmitted, for example, to a machine or vehicle controller.
DANGER
Incorrect signal evaluation
The dangerous state may not be stopped in the event of non-compliance.
b
Note the logical values of the status information of the protective fields when
transferred to the Flexi Soft safety controller.
•
The status of an evaluated protective field is logical 1 if the protective field is clear.
•
The status is logical 0 if the protective field is interrupted.
•
The status of an unallocated protective field defaults initially to logical 1.
If you evaluate the status of the protective fields using Flexi Soft, then on the
field mode
tab first select the
Transfer unallocated fields as interrupted
option.
Further topics
•
"EFI status information and control commands", page 150
7.9.1
External device monitoring (EDM)
The EDM checks if the contactors actually de-energize when the protective device is
tripped. If you activate external device monitoring, then the safety laser scanner checks
the contactors after each interruption of the protective field and prior to the machine
restart. External device monitoring is then able to detect if one of the contactor’s con‐
tacts is welded, for instance. In this case the external device monitoring places the sys‐
tem in a safe operational status and the OSSDs are not switched back to the ON state.
The table shows how the device reacts if the external device monitoring detects a con‐
tactor malfunction:
Table 21: Behavior of the device on a contactor malfunction
Without internal restart
interlock or with restart
delay
•
The system locks completely (lock-out).
•
The error message
appears in the 7-segment display.
•
The safety laser scanner switches its OSSDs to the OFF state.
•
The LED
Ê
is illuminated.
•
The error message
appears in the 7-segment display.
External device monitoring can be configured in the CDS.
NOTE
b
If the external device monitoring function is not being used, leave the inputs dis‐
connected.
Further topics
•
"Connection diagrams", page 54
•
7.10
Restart
Overview
You can configure the restart behavior as follows:
7
CONFIGURATION
96
O P E R A T I N G I N S T R U C T I O N S | S3000
8009942/ZA18/2019-11-14 | SICK
Subject to change without notice
