12. Remove the old PCB.
2.
PS make sure that you are placing the jumper for supply voltage the
correct position, 110 120V 220 240V. Discharge the package with the new PCB
by moving earth. Then all the
internal cable connectors have converted fit the new PCB.
5. Disconnect the cable the PCB from the
thyristors, fans and thermal switch.
8.
Fig.
Make also sure that you have connect the cable from the thyristors
correct DS
Ready for start!!
-. 4. Please note that the gate wires are connected differently the new PCB. Cut the old wires, and exchange the
terminals for the gate wires, fan wires, and
thermal switch the new ones included in
the package.
4. Mount the new PCB.Start here if
Replacing older PCB marked Rev older (for 690V Rev older).
1.
Step step.
7. Mount the cable the PCB from the
thyristors, fans and thermal switch. Mount the front cover. Disconnect the voltage from terminals 1L1
3L2 and 5L3 (main supply).
9. Remove the front cover.
6.
Mount also the connector for Supply
Voltage.
These PCB have tabs (see Fig connectors for the gate wires and other internal connections.
11. Connect the voltage and the other cable.
10. Discharge the tools and yourself by
touching earth (if you are not earthed). Disconnect all cables from the terminals 1
3. New PCB rev I
or later. Please note that the gate wires
have new connection position -
See colour marking Fig.
This chapter valid replacing the broken PCB with the newest revision (rev later) PCB. The needed connectors are enclosed
in the new PCB package
