SSZ SSZ-BAT, System Manual, Page: 39 / 66

39
Safety mats
3 4 5
6
SSZ-control unit
If the safety mat is activated the controller‘s relay contacts open and the dangerous
movement is stopped.
If more than one safetymat has to be attached to the controller these have to be wired in
sequence.
For further information about sequence switching, please see the connection examples in
the annex.
After the device has been installed and before starting the machine every time thecorrect
functioning of the safety device must be checked.
Function test
The safety mat can be testedwith a multimeter or gauge.
To do a function test the mat has to be disconnected from the controller and further safety
components.
The test areas and results are in the following table.
Testleads to wires Meter range Test result
3 and 4 wires 5 and 6 open 20 MOhm ∞
3 and 4 wires 5 and 6 linked 400 KOhm <280 KOhm
3 and 5 200 KOhm <140 KOhm
4 and 6 200 KOhm <140 KOhm
The test results from wire 3/ 5 and wire 4/ 6 are not the same however, the difference may
not exceed 20%!
To test the controller, please see the chapter about controllers.
Sequential wiring of safety mats