SERVICE MANUAL - O. Rensch OHG
SERVICE MANUAL - O. Rensch OHG
SERVICE MANUAL - O. Rensch OHG
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(1) Interlock switch<br />
The interlock switch is located on the high voltage board and opened and closed in conjunction with the front cover or the<br />
front top cover via the interlock lever. This switch connects and disconnects the +24 V DC power supply line. If the front<br />
cover or the front top cover is open, the interlock switch is open, and the +24 V DC to the high voltage output circuit, bias<br />
board, engine board, and the power supply board is disconnected, deactivating the high voltage output, laser output, main<br />
motor output for safety. The cooling fan is an exception: Since the cooling fan is directly fed with +24 V DC from the power<br />
supply unit at the primary side (+24V1) of the interlock switch, the cooling fan is not deactivated even the cover is open.<br />
2DC<br />
Front top cover<br />
Projection<br />
Interlock lever<br />
Projection<br />
Engine board,<br />
Bias board,<br />
etc.<br />
Power supply unit<br />
+24V2<br />
Front cover<br />
+24V2<br />
Triac, etc.<br />
+24V2<br />
High voltage<br />
output circuit<br />
Interlock<br />
switch<br />
+24V2<br />
+24 V DC<br />
output<br />
+24V1<br />
+24V1<br />
Machine left side view<br />
Cooling fan<br />
High voltage board<br />
Figure 2-3-10 Interlock switch<br />
2-3-11
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