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2110788-13-03/20 (Translation of the original operating instructions)
Operating Instructions
Transponder-Coded Safety Switch CET.-AR-…
EN
11.2.2. Teach-in function with series connection, replacing and teaching in device
It is recommended not to teach-in the actuators in the series connection but to teach them in one by one instead. Teach-in
in a series connection works analogously to separate operation in principle. All switches in the chain can be taught-in at
the same time. The prerequisite is that the switch chain functions without problems and the following steps are followed.
Further steps might have to be observed for mixed switch chains (e.g. for chains with CES and CET). Observe the operating
instructions for the other devices in the chain for this purpose.
Work on the wiring (e.g. during device replacement) should generally be performed in a de-energized state. On certain
systems, it is nevertheless necessary to perform this work and subsequent teach-in during ongoing operation.
The RST input must be connected as shown in
Proceed as follows:
1. Open the guard on which the switch or actuator is to be replaced.
2. Mount the new switch or actuator and prepare it for the teach-in operation (see chapter
11.2.1. Preparing device for the
teach‑in operation and teaching‑in actuator on page 38
3. Close all guards in the chain and activate guard locking.
4. To reset the switch, apply a voltage of 24 V to the RST input for at least 3 s (Reset).
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On the safety switch that is positioned at a new actuator, the green STATE LED flashes at approx. 1 Hz and the actuator
is taught-in. This takes approx. 1 min. Do not switch off during this time and do not actuate reset! The teach-in operation
has ended only when all LEDs on the device are off.
5. Apply a voltage of 24 V to the RST input for at least 3 s.
¨
The system restarts and then continues to function in normal operation.
