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6. Function
The safety switch monitors the position of movable guards. The safety outputs are switched on/off when the actuator is
moved to/removed from the actuating range.
The system consists of the following components: coded actuator (transponder) and switch.
Whether the device learns the complete actuator code (unicode) or not (multicode) 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 tam-
pering. The system thus possesses a high coding level.
Ì
Devices with multicode evaluation: Unlike systems with unique code detection, 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 detection). There is no exact comparison of the actuator code with the taught-in code in the safety switch
(unique code detection). The system possesses a low coding level.
When the guard is closed, the actuator is moved towards 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 are turned off when the guard is opened.
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. Door monitoring output
The door monitoring output is switched on as soon as a valid actuator is detected in the actuating range.
6.2. Diagnostic output
The diagnostic output is switched on in the event of a fault (switch-on condition as for DIA LED).
6.3. Limit-range monitoring
If the safety door with the actuator should settle over time, the actuator can drift out of the read head actuating range. The
device recognizes this situation and indicates that the actuator is in the limit range by flashing the STATE LED. This allows
the safety door to be readjusted in time. Also see chapter 11. System status table on page 18.
6.4. Switching states
The detailed switching states for your switch can be found in the system status table (see chapter 11. System status table
on page 18). All safety outputs, monitoring outputs and display LEDs are described there.
Safety outputs OA and OB
Monitoring output OUT
2112663-08-02/20 (Translation of the original operating instructions)
Non-Contact Safety Switch CES-AP-C01-...
Guard closed
(actuator in the actuating range and permissible
code detected)
on
on
Operating Instructions
Guard open
(actuator not in the actuating range)
off
off
EN
7
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