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