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Variants for process protection (actuator monitoring)
OSSDs go into the ON state when the following conditions are all met.
•
Movable physical guard is closed.
•
A valid signal is present at the inputs In1 and In2.
Important information
DANGER
Hazard due to lack of effectiveness of the protective device
b
Do not use variants for process protection in applications where the dangerous
state cannot be ended immediately (stopping/run-down time).
3.2.5
Application diagnostic output
Important information
NOTE
The application diagnostic output cannot be evaluated for a safe series connection with
T-connectors.
Switching behavior
The application diagnostic output switches depending on the detection of the actuator.
This is not a safety output.
Status of the movable physi‐
cal guard
Switching behavior of the application diagnostic output
Open
OFF
Closed
ON
3.2.6
Coded actuators
The safety locking device comes with RFID-coded actuators.
•
Uniquely coded
Only one actuator is valid at any one time. Actuators need to be taught-in
to become valid. Each time a new actuator is taught-in, the previous actuator
becomes invalid.
Coding level: High (ISO 14119)
•
Universally coded
The device accepts all actuators that are suitable for the device.
Coding level: Low (ISO 14119)
3.3
Manual unlocking
In some situations, it necessary to unlock the locking device manually (e.g. if faults are
present). When unlocking, the safe output signal switching devices (OSSD) switch to the
OFF status. A stop command must be generated as a result.
After manual unlocking, a function check-out must be performed (
during commissioning and modifications", page 30
3.3.1
Auxiliary release
Using the auxiliary release, the safety locking device can be manually unlocked regard‐
less of the status.
PRODUCT DESCRIPTION
3
8020562/2022-07-07 | SICK
O P E R A T I N G I N S T R U C T I O N S | flexLock
11
Subject to change without notice