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Connecting cables
To connect the cables, proceed as follows:
1. Reconnect the fiber-optic cables to the opto-transmitter and opto-receiver in accordance with
the markings. Carefully hand-tighten the knurled nut.
2. Check the correct insertion depth of the fiber-optic cables with the aid of the marking rings.
If the white colored ring on the fiber-optic cable is flush with the shaft end of the plug case,
the fiber-optic cables are correctly inserted.
3. Reinsert the connecting leads into the thyristor electronics.
4. Check that everything is correctly connected and that the cables are correctly inserted.
Notes on sending back
Send defective thyristor electronics to the manufacturer for repair. Please observe the following:
• Use suitable containers made of cardboard, wood or plastic for shipping.
• Use filler material to hold the thyristor electronics in place.
• Enclose dehumidification material if the packaging is air-tight.
• Note the ESD in the "Safety instructions" section.
NOTICE
Material damage due to inadequate packaging
Components can be bent by careless packing or insufficient packaging. This makes determining
the exact cause of the error difficult.
• When packing the thyristor electronics, take care not to bend protruding parts.
Note
Any information about the damage to the thyristor electronics will be helpful for determining
the cause of the fault and for repair. Moreover, this data is evaluated for a reliability analysis.
Include information about the most recent operational performance and about any previous
conspicuous behavior.
See also
Components that can be destroyed by electrostatic discharge (ESD) (Page 15)
9.6.6.3
Replacing a thyristor
The tool set provided contains the following parts:
• Open-ended wrench
• Socket wrench
• Contact oil "Cramolin Schutz" (international name "Cramolin Protection")
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
Maintenance
9.6 Repairs
131
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