Swatch Lasag SLS 200 CL Series, Service Instructions Manual

Page: 253 / 347

I N D U S T R I A L - L A S E R S
A COMPANY OF THE
© Lasag AG, Thun, 15.05.08 CM
Service instructions
Laser sources KLS CL/SLS CL
13 Description and repair LV CL
86 . 0631 - 13 - 06
13.2.2 Main switch and mains filter
DANGER OF ELECTRIC SHOCK
Even with the main switch switched off, the mains power supply line and the mains filter
are still under voltage!
13.2.3 Transformer
The transformer T1 serves for adaptation to the most customary mains voltages worldwide. By the step-
ping ratio selected, local over- or undervoltages can be compensated as well.
13.2. Mains module
13.2..1 Overview of components mains module
13.2..2 Safety relay A10
The safety relay A10 is built-up as a 2-channel device for the safety category 3.
One channel is formed by the interlock switches (opener contacts respectively), while the 2nd channel
is actuated by the control system. When the Laser On key is pushed, the control system only releases
the 2nd channel, if it through the 2nd contacts of the IL switch does not identify any contradiction to the
status of the 1st channel.
The Laser On key is in the return circuit, with which it is also monitored, whether both power contactors
have really released. Only in this case, if both safety channels are OK, can the relay pick-up.
The yellow and the green LED indicate, that the safety relay has picked-up.