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