UNITROL 1020 User Manual 3BHS335648 E82 85
Chapter 5 - Commissioning
5.1 General
The commissioning should be carried out by certified commissioning
personnel.
5.2 Safety Regulations
The safety regulations according to Chapter 2 - Safety Instructions must
be followed.
UNITROL 1020 units operate with dangerous voltages of up to 300 V ac
or 300 V dc.
Manipulation of live parts can lead to death or injury to the persons
involved or damage to the surroundings.
Possible risks are largely excluded if the unit is handled properly in
accordance with these instructions.
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.
After the unit has been switched off, it must be ensured by measurement
that no measuring voltages or control voltages >50 V are present at the
terminals. At an interrupted field circuit the input capacitor is slowly
discharged through internal circuits.
In order to prevent unintentional closing of open voltage circuits by third
parties, the circuits in question should be identified at the point of
interruption (e.g. by means of a warning sign).
Before switching on, check whether the connection terminals are wired up
according to the plant schematic.
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