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2528734-01-07/19 (Translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-I-BP-.-C07-…
EN
6. Function
The safety switch monitors the position of movable guards. The safety outputs are switched on/off when the actuator is
moved into/out of the operating distance.
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 switch-on 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 switched 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. Diagnostic output OD/C
The device has a diagnostic output that can be used either as a door monitoring output or as a communication output to a
BR evaluation unit (e.g. ESM-CB). During starting, the device automatically detects whether it is connected to an input on a
BR evaluation unit. In this case the diagnostic output OD/C operates as a communication output OC.
6.1.1. Door monitoring output OD
The door monitoring output is switched on as soon as a valid actuator is detected in the operating distance.
6.1.2. Communication output OC
The communication output is used to exchange data with an evaluation unit for BR series connections. The switch delivers
process data determined cyclically. Acyclical data can also be sent by means of specifically polling by the evaluation unit.
You will find an overview of the communication data in chapter 8.8. Connection to a BR evaluation unit.
6.2. Limit-range monitoring
If the safety door with the actuator should settle over time, the actuator can drift out of the read head operating distance.
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 10. System status table CES‑I‑BP‑… on page 17.