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Setup, Led indicators, Initial setup – EUCHNER CES-AR-CL2-CH (Multicode) User Manual

Page 21: Functional check

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Operating Instructions Safety Switches CES-AR-C.2-CH

21

Setup

LED indicators

LED

Color

State

Significance

STATE

green

illumi-

nated

Normal operation

flashing

- Teach-in operation or Power Up 

- Actuator in boundary area (V. 1.1.2 or higher

(further signal functions: see status table)

DIA

red

illumi-

nated

- Internal electronics fault

- Fault at the inputs/outputs

Initial setup

1.  Apply operating voltage to the safety switch.

¨

The green LED flashes quickly (approx. 10 Hz). 

A self-test is performed during this time (approx. 8 s). After this, the LED 

flashes cyclically one time and signals that it is in standby state.

2.  Move actuator to the read head (observe distance < S

ao

).

¨

The  green  LED  illuminates  continuously  and  indicates  the  detection  of  the 

actuator.

If the green LED is flashing at approx. 2 Hz, the actuator is in the boundary area. 

In this case the safety guard must be re-adjusted such that the actuator is com-

pletely in the read area.

Functional check

After installation and any fault, the safety function must be fully checked. Proceed 

as follows:

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 per-
sons in the danger area.

 Ì

Observe the valid accident prevention regulations.

1.  Switch on operating voltage.

 Ì

The safety switch carries out a self-test.  

The green LED STATE flashes for 8 s with 10 Hz. 

The STATE LED then flashes at regular intervals.

2.  Close all safety guards.

 Ì

The machine must not start automatically.

 Ì

The green STATE LED illuminates continuously.

3.  Enable operation in the control system.
4.  Open the safety guard.

 Ì

The machine must switch off and it must not be possible to start it as long as 

the safety guard is open.

 Ì

The green LED STATE flashes at regular intervals.

Repeat steps 2-4 for each safety guard.

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