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Idiomas disponibles
Idiomas disponibles
If at rated speed the residual supply voltage is less than 5V, increase the residual magnetism of the
generator by following the instructions contained in the User and Maintenance Manual of the device
itself.
Otherwise, go to Step 5.
Step 5.
Replace the voltage controller.
With generator to rated speed, without load, the voltage at the output terminals is higher than the nominal
one.
Step 1.
If the voltage at the output terminals is higher than 120% of the rated voltage of the generator,
INSTANTLY STOP THE GENERATOR and check ALL the connections, particularly those on
specific terminals S-0.
If there is not any connection to the terminals P and Q (external potentiometer or analog control
signal), check that there is no jumper short-circuiting the terminals themselves.
In case of missing or incorrect connections, reconnect following the diagrams supplied with the
generator.
If after restarting the generator the problem persists, go to Step 3.
If the voltage at the output terminals is equal to or less than 120% of the rated voltage, go to Step
2.
Step 2.
Check the calibration of the VOLT meter.
SPECIAL CASE: with external potentiometer connected to terminals P and Q, the voltage internal
reference shifts to higher values (up to a maximum of 20% more); in this case you need to reset
the VOLT meter.
Reset VOLT so as to bring the generator at rated voltage.
Otherwise, go to Step 3.
Step 3.
Replace the voltage controller.
At nominal speed, with or without load, the voltage adjustment is inaccurate and / or unstable (it is
assumed that the prime mover is operating properly).
Step 1. Check the connections.
Change any incorrect connections.
Otherwise, go to Step 2.
Step 2.
Check the correct setting of the stability of the control system.
Rotate STAB clockwise / counter-clockwise until reaching the required stability / accuracy.
Otherwise, go to Step 3.
Step 3.
Replace the controller.
9. EMI SUPPRESSOR
The Voltage Regulator is provided with an internal Electromagnetic Interference filter: this interference suppression
system permits to obtain compliance with relevant EMC standards on MARELLI MOTORI generators (EN 61000-6-
3 [2001] + EN 61000-6-3/A11 [2004]).
10.
FUSE
The voltage regulator is provided with an internal protecting fuse (5 A, 500 V) (which acts in case of faults on the
regulator or very large overloads on exciter circuit).
11.
ACCESSORY
Description
Fuse
Ultra rapid, ceramic, 5 A – 500 V
External potentiometer
100 k - 1.5 W
Part number
963823065 - 10005573
963824430 - 10000302
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