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Installing a thyristor
1. Clean the thyristor surfaces of the new thyristor with ethanol.
2. Spray contact oil onto a clean cloth and apply to the contact area.
3. Place the new thyristor in the plastic holder.
Pay attention to the mounting position, especially the polarity of the thyristor. The adhesive
symbols on the clamping pressure plates show the appropriate information.
4. Reconnect the two twisted gating leads.
5. Tighten the clamping screw with the socket wrench until the open-ended wrench
easily removed.
When the slot in the steel bolt is flush with the surface of the side plate, the clamping force
is correctly set.
6. Enter the thyristor numbers and the replacement data in the equipment installation log. The
first number on the thyristor label is the thyristor number.
9.6.6.4
Disconnecting the fiber-optic cables
Tools required
You require a fiber-optic cable cutter (Order No. A5E02615209) to cut the fiber-optic cables to
length.
Procedure
NOTICE
Destruction of the fiber-optic cables
Fiber-optic cables can be destroyed under the following conditions:
• The bending radius is less than 20 mm.
• The fiber-optic cables are subject to strong light.
• The fiber-optic cables are exposed to temperatures of over 80° C.
Handle the fiber-optic cables carefully. Do not bend them with a bending radius of less than
20 mm. Protect the fiber-optic cables from heat and strong light.
①
②
Figure 9-10
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
Knurled nut
Fiber-optic cable
Releasing a fiber-optic cable
Maintenance
9.6 Repairs
①
can be
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