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 converter's recent operational performance and about any
previous conspicuous behavior.
See also
Components that can be destroyed by electrostatic discharge (ESD) (Page 19)
9.6.10.3 Replacing a thyristor
The tool set provided contains the following parts:
● Open-ended wrench
● Socket wrench
● Contact oil "Cramolin Schutz" (international name "Cramolin Protection")
Note
Selecting replacement thyristors
Use only the approved thyristor types for the mounting location. Observe the equipment
installation log when replacing the thyristor.
DANGER
Failure to adhere to the following five safety rules is potentially fatal
Work must only be performed on adequately grounded power unit. Non-observance of the
five safety rules can cause death or serious injury. Serious material damage can also result.
Observe the five safety rules.
The thyristors are centered in the stack using their outer diameter and plastic bolts. The plastic
bolts are attached to the heat sinks. A disk spring at the end of the stack provides the necessary
pressure.
Maintenance
9.6 Repairs
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions 04/2017 127
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