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2109309-09-03/20 (Translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-AR-C.2-…
EN
9.2.2. 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 safety switches with guard locking).
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
to permit this.
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
9.2.1. Preparing device for the
teach-in operation and teaching-in actuator on page 20
3. Close all guards in the chain.
4. Actuate the reset for at least 3 s (24 V on RST).
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On the safety switch that is positioned at a new actuator, the green 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 when all LEDs on the device are off.
5. Actuate the reset for at least 3 s (24 V on RST).
¨
The system restarts and then continues to function in normal operation.
9.3. Functional check
WARNING
Danger of fatal injury as a result of faults in installation and functional check.
Ì
Before carrying out the functional check, make sure that there are no persons in the danger zone.
Ì
Observe the valid accident prevention regulations.
9.3.1. Electrical function test
After installation and any fault, the safety function must be fully checked. Proceed as follows:
1. Switch on operating voltage.
¨
The machine must not start automatically.
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The safety switch carries out a self-test. The green STATE LED flashes for 10 s at 10 Hz. The green STATE LED then
flashes at regular intervals.
2. Close all guards.
¨
The machine must not start automatically.
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The green STATE LED illuminates continuously.
3. Enable operation in the control system.
4. Open the guard.
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The machine must switch off and it must not be possible to start it as long as the guard is open.
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The green STATE LED flashes at regular intervals.
Repeat steps 2 - 4 for each guard.
