UNITROL 1020 User Manual 3BHS335648 E82 165
Chapter 7 - Preventive Maintenance
7.1 General
ABB recommends periodical training for the maintenance personnel.
7.2 Safety Regulations
The secondary voltage of the excitation transformer and the voltage of
the excitation field are fed into the excitation cabinet.
These components present a great danger of electric shocks.
The control elements and the PC interface on the front plate of the
UNITROL 1020 unit are to be touched and/or attached only with
caution.
7.3 Standard Procedures for Maintenance
When the system is at a standstill, the screwed terminals, which can get
loose due to vibrations, should be checked for tightness. Dusty cooling
flanges should also be cleaned.
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