Wiring Diagrams For Different Circuits; Initial Start-Up - Sincro FB2 MB Manual Del Usuario

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ensure optimum operation under specific working conditions.
According at the working frequency (50Hz or 60Hz) set both
switches as in figure.
The output voltage can be changed by adjusting
potentiometer "V". Run the generating set to its nominal
speed and turn until the required voltage is obtained. If a
small variation in speed causes a change in voltage, then
the under speed protection should first be calibrated.
The voltage reference (orange wires) should be connected:
• to terminals "AuxN" and "230" if connected to a voltage
between 200 and 280V
• to terminals "AuxN" and "400" if connected to a voltage
between 350 and 500V.
If the voltage is set any higher than its
maximum limit the generator may be
damaged.
CAUTION!
Setting the under speed at 50 (60)Hz: start up rotation of
the generating set adjusting it to obtain a frequency of 47
(57)Hz. Turn trimmer "UF" until the voltage begins to drop.
Restore nominal speed.
If the under speed is set at too low a
frequency, the generator may be damaged.
On the other hand, too high a frequency
CAUTION!
can cause voltage drops with high loads.
Remote voltages adjustment : remove the jumper on
terminals "EXT POT" and wire the potentiometer (5kOhm,
½W) to the free terminals, however make sure that it is set at
its maximum resistance.Turn trimmer "V" anticlockwise to its
limit. Run the generating set to its nominal speed and adjust
the potentiometer until the required voltage is obtained.
Stability adjustment : if on load voltage fluctuations are
experienced adjust potentiometer "ST", which modulates
the reaction time of the regulator to external inputs, thereby
eliminating any instability in the alternator-load system.
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6.4.5 Wiring diagrams for different circuits

In the appendix of this manual there are diagrams for any
connections other than the factory star-series (standard
unless otherwise specified on order).

6.4.6 Initial start-up

Before starting up the generating set, check that all external
connections are in order and that the protections are in
place.
During the initial start-up pay particular attention for any
unusual noises that might signal an incorrect alignment
between engine and generator.
Do not touch the generator while in
!
operation and straight after the generating
set has stopped, since certain parts may
WARNING!
still be very hot.
Generators are rotating electrical machines that involve
potentially hazardous live or moving parts, therefore the
following is strictly prohibited:
• an improper use
• removal of covers and disconnection of safeties.
The lack of routine check-ups and poor
!
maintenance can cause severe damage to
persons and/or objects.
WARNING!
Due to these inherent hazards, all work of an electrical or me-
chanical nature must be carried out by qualified specialists.