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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.
Devices with unicode evaluation: The actuator must be assigned to the
Ì
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.
Devices with multicode evaluation: Unlike systems with unicode evaluation,
Ì
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 distances are 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 are switched off when the guard is released.
In the event of a fault in the safety switch, the safety outputs are switched off and the DIA LED illuminates red. The occurrence
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.
Monitoring outputs/status bits
Depending on version, the signals listed in the following are available as a status bit or at the monitoring output. The status
bits are evaluated via the BR/IO-Link Gateway. Please refer to the corresponding data sheet for further information.
6.2.1. Guard locking signal OL
The guard locking signal is present if the guard locking is active.
6.2.2. Door position signal OD
The door position signal is sent as soon as the actuator is inserted into the switch head (state: guard closed and not locked).
The signal is also present if the guard locking is active.
6.2.3. Diagnostic signal OI
The diagnostic signal is present if there is an error (switch-on condition as for DIA LED).
6.2.4. Escape release signal OER
The escape release signal is present if the device has been released manually (see chapter 7. Manual release on page 13).
The signal is reset if the guard locking is re-activated or the reset function has been activated.
6.2.5. Status signal OM
The status signal is present if the device's safety outputs are switched.
MAN20001654-01-03/23 (translation of the original operating instructions)
Transponder-Coded Safety Switch CTP/CTA-L1/2-BR
Operating Instructions
Transponder-coded
actuator
Guard locking pin
EN
9
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