Operating Instructions
Safety Systems with Locking ESL-IH-AR
20
(translation of the original operating instructions) 119138-05-10/15
9.2.2. Teach-in function with series connection, replacing and teaching in device
It is recommended not to teach in the handle modules 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 ESL-AR 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.
Input RST must be connected as shown in
Figure 4 on page 17
to permit this.
Proceed as follows:
1. Open the safety guard on which the interlocking module or handle module is to be replaced.
2. Mount the new interlocking module or handle module and prepare it for the teach-in operation (see chapter
9.2.1. Pre‑
paring device for the teach‑in operation and teaching‑in handle module on page 19
).
3. Close all safety guards in the chain.
4. Actuate the reset for at least 3 s (24 V on RST).
¨
The system restarts (approx. 10 s).
¨
On the interlocking module at which a new handle module is positioned, the green LED flashes at approx. 1 Hz and the
handle module is taught-in. This takes approx. 30 s. 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.
