Operating Instructions

7.2 Testing
DANGER
Haz
ard due to unexpected starting of the machine
Death or severe injury
b
Before carrying out the functional test, make sure that there are no people in the
hazardous area.
Approach
Check tha
t the device is functioning properly after installation and after every fault. To
do this, proceed as follows:
Mechanical functional test
b
Open the protective device and close it again. The components of the safety
locking device must not collide with other parts. When the protective device is
closed, the actuator must be in a position which enables the lock to be actuated.
Electrical functional test
1. Switch on the supply voltage.
2. Close all protective devices and activate the locks. The machine must not start up
on its own.
3. Check the lock. It must not be possible to open the protective device.
4. Start the machine function.
5. Only variants with lock monitoring (people protection): Make sure that the lock
cannot be deactivated as long as the dangerous machine function is active.
6. Stop the machine function and deactivate the lock.
7. Check whether the protective device is kept locked until there is no more risk of
injury (e.g., due to run-on movements).
8. Check the restart interlock. The machine function must not start while the lock is
deactivated.
9. Repeat steps 3 to 8 individually for each protective device.
Complementary information
NOTE
You can simula
te an active lock command, by applying the referred voltage to the “Lock
input” contact.
•
Variant with locking principle power to lock: 24 V DC
•
Variant with locking principle power to release 0 V DC
7.3 Regular thorough check
Important information
DANGER
Insufficient c
hecks or incorrect repair
Hazard due to lack of effectiveness of the protective device
b
In the event of wear or damage, replace the entire safety locking device with
actuator. Never replace individual parts or assemblies.
b
Check the safety locking device following the inspection intervals specified in the
national rules and regulations.
7 COMMISSIONING
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O P E R A T I N G I N S T R U C T I O N S | flexLock 8020562/2021-04-30 | SICK
Subject to change without notice
Review version 2021-04-30