Operating instructions

Operating Instructions Chapter 7

C4000 Standard/Advanced

Subject to change without notice

Commissioning

7.3.3 Daily functional checks of the protective device

The effectiveness of the protective device must be checked daily by a specialist or by

authorised personnel, using the correct test rod.

Always test along the complete hazardous area to be protected, never solely at the

mounting position of the light curtain.

How to check the effectiveness and proper function of the safety light curtain:

 Select the correct test rod depending on device resolution. By means of the configura-

tion, the entire system or individual areas can have a physical resolution that is

different to the effective resolution, e.g. in case of blanking or reduced resolution. In

this case you must select the test rod to suit the effective resolution. The effective

resolution is described with the related function in chapter 4.

Example: – physical resolution 14 mm

– operation with resolution reduced by 1 beam

– effective resolution 22 mm

Use the test rod for a resolution of 22 mm.

Do not operate the machine if the green or yellow LED is lit during the test!

If the green or yellow LED lights up during the test even for a short period, work must stop

at the machine. In this case the mounting and the configuration of the safety light curtain

must be checked by qualified safety personnel (see chapter 5).

 Before inserting the test rod, check that the green LED is lit if the internal restart inter-

lock is deactivated or, if the internal restart interlock is activated, that the yellow LED

flashes (“Reset required”). If this is not the case, make sure that this condition is

reached. The test is otherwise meaningless.

 Move the test rod slowly through the protective field to be tested, as shown in  in

Fig. 43.

 Then move the test rod along the edges of the protective field, as shown in  in Fig. 43.

This procedure allows you to test if the point-of-operation/reaching behind protection is

functioning properly (see 5.2 “Steps for mounting the device” on page 44).

 If you use one or more deflector mirrors (e.g. PNS), then also guide the test rod slowly

through the protective field directly in front of the mirrors.

 If you use the blanking function (see section 4.8 “Blanking” on page 27), then the

protective field is divided into several sections. In this case check all sections of the

protective field.

During all tests, only the red LED is allowed to illuminate on the C4000 receiver.

Note



WARNING

Note

Fig.

Daily checks of the

protective device

