Disconnect the voltage from terminals 1L1,
3L2 and 5L3 (main supply).
Fig.
These PCB have white colored connectors (see Fig. Mount the cable the PCB from the
thyristors, fans and thermal switch.. Mount also the connector for Supply
Voltage.
4. Please note that
the gate cable connections are different the new PCB, Check this following the cable colors figure 6
below. Discharge the package with the new PCB
by moving earth.
This chapter valid replacing broken with newer revision (rev later) PCB.
11. 6.
8.
Also make sure that you have connected the cables from the thyristors
in the correct position differ from the old PCB DS
Ready for start!!
-. Remove the front cover.
5.
7. New PCB rev later
PS make sure that you are placing the jumper for supply voltage the
correct position, 110 120V 220 240V. Disconnect all cables from the terminals to. Mount the new PCB.
10.
6.Start here if
Replacing PCB marked Rev revision (Not valid for 690V).5) for the gate wires and other internal connections.
Please note that the gate wires have a
new connection position -
See colour marking Fig.
1. Older PCB with connectors.
Fig.12
3. Connect the voltage and the other cable. Remove the old PCB. Discharge the tools and yourself by
touching earth (if you are not earthed).
Step step.
13. Mount the front cover.
9. Disconnect the cable the PCB from the
thyristors, fans and thermal switch.
2
