Technical Information
Chapter
3
HC8X Heat Control
Electrical Installation
8010043
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SICK AG · All rights reserved
3-25
3.6
Connecting the Control Electronics Supply Voltage
3.6.1
Supply Voltage and Fuse Preselection, Primary Side
The supply voltage of the control electronics is connected via the mains socket with variable
voltage preselection 115 V/230 V, 50
–
60 Hz (see Fig. 3-1).
1.
Unlock the fuse holder with a screwdriver on the side tongue and pull it out.
2.
Pull out contact bridge of supply voltage switch-over and turn so that the desired voltage
rating is visible in the indicator window of the mains socket (e.g. 115).
3.
Reinsert the contact bridge of the supply voltage switch-over.
4.
Reinsert the required fuses in the fuse holder:
– With 115 V preselected voltage: 2 x 0.4 AT (slow blow), size 5 x 20
– With 230 V preselected voltage: 2 x 0.2 AT (slow blow), size 5 x 20
5.
Firmly press in the fuse holder until you hear it click into place.
3.6.2
Connecting the Supply Voltage
Destruction of control unit by overvoltage!
The control electronics of the HC8X operate without additional mains switching immediately
upon inserting the plug.
Check the value of the preset supply voltage by visual inspection of the indicator win-
dow in the fuse holder.
Correct the supply voltage selection as required.
1.
Connect the plug (not included in items delivered) with the correct polarization to the
supply line of the supply voltage for the control electronics.
2.
Insert the plug into the socket.
