WARNING
The locking device locks even when voltage is not present
People could get trapped!
b
If people are in the hazardous area, do not close the protective device even if volt‐
age is not present.
Or:
b
Use the variant with an escape release.
Power to lock principle
•
Locking the locking device: Apply voltage to magnet
•
Unlocking the locking device: Disconnect voltage from magnet
If voltage is disconnected at the magnet, the locking device is unlocked and the protec‐
tive device can be opened immediately.
DANGER
Hazard due to lack of effectiveness of the protective device
In the event of a voltage drop, the safety locking device unlocks regardless of whether
the dangerous state of the machine has ended.
b
Assess the risk of accident. Use for protecting people requires correct project plan‐
ning.
Activating the locking function
For single-channel activation of the locking function, the controller and the safety lock‐
ing device must have the same ground.
For dual-channel activation of the locking function, clock pulses are tolerated up to a
max. length of 5 ms. If possible, switch off the clocking of outputs in the control system.
NOTICE
•
The locking solenoid of the TR110 Lock safety locking device is controlled exter‐
nally (no control function within the device). Therefore, the TR110 Lock safety lock‐
ing device does not have any characteristic safety values for controlling the locking
function.
•
The safety level for controlling the locking function is determined exclusively by
external control (e.g. by the PFHd of an external standstill monitor).
Types for series connection of OSSDs have a separate pin MAG 0 V DC in order to apply
0 V to the locking solenoids (
see "Device connection", page 29
). In the other types,
the 0 V connection of the locking solenoid is connected using the 0 V connection of the
safety locking device.
4
PROJECT PLANNING
18
O P E R A T I N G I N S T R U C T I O N S | TR110 Lock
8023119/15LY/2019-10-28 | SICK
Subject to change without notice
