9
2123041-08-01/21 (translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CTP-AR
EN
6. Function
The device permits the locking of movable guards.
The system consists of the following components: coded actuator (transponder)
and switch.
Whether the device learns the complete actuator code (unicode) or not (multi-
code) depends on the respective version.
Ì
Devices with unicode evaluation
: The actuator must be assigned to the
safety switch by a teach-in operation so that it is detected by the system.
This unambiguous assignment ensures a particularly high level of protection
against tampering. The system thus possesses a high coding level.
Ì
Devices with multicode evaluation
: Unlike systems with unicode evalu-
ation, on multicode devices a specific code is not requested but instead it is only checked whether the actuator is of a
type that can be detected by the system (multicode evaluation). There is no exact comparison of the actuator code with
the taught-in code in the safety switch (unicode evaluation). The system possesses a low coding level.
When the guard is closed, the actuator is moved into the safety switch. When the operating distance is reached, power is
supplied to the actuator by the switch and data are transferred.
If a permissible code is detected, the safety outputs
are switched on.
The safety outputs
and the monitoring output (OL) are switched off when the guard is unlocked.
In the event of a fault in the safety switch, the safety outputs are switched off and the DIA LED illuminates red. The oc-
currence of faults is detected at the latest on the next demand to close the safety outputs (e.g. on starting).
6.1.
Guard lock monitoring
All versions feature two safe outputs for monitoring guard locking. The safety outputs (FO1A and FO1B) are switched
off when guard locking is released.
6.2.
Door position monitoring output (OD)
The door position monitoring output is switched on as soon as the actuator is inserted into the switch head (state: guard
closed and not locked). The door position monitoring output also remains switched on when guard locking is active.
6.3.
Diagnostic monitoring output (OI)
The diagnostic monitoring output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.4.
Guard lock monitoring output (OL)
The guard lock monitoring output is switched on when guard locking is active.
6.5.
Version CTP Extended
Devices in the Extended version contain additional controls/indicators in the housing cover. Please refer to the enclosed
data sheet for further information.
6.6.
Guard locking on version CTP-L1
(guard locking actuated by spring force and released by power-ON)
Activating guard locking:
close guard; no voltage at the solenoid.
Releasing guard locking:
apply voltage to the solenoid.
The spring-operated guard locking functions in accordance with the closed-circuit current principle. If the voltage is interrupted
at the solenoid, the guard locking remains active and the guard cannot be opened directly.
Important!
If the guard is open when the power supply is interrupted and is then closed, guard locking is activated.
This can lead to persons being locked in unintentionally.
Transponder-coded
actuator
Guard locking pin
