___________________________________________________________________________________________
EA341
5
4.6
Excitation (EXC) Adjustment
This adjustment is set and sealed in the works and
should not be tampered with. An over excitation
condition is indicated by the illumination of the red LED
which also indicates under-speed running and
over-volt.
The generator must be stopped to reset an
over-excitation trip.
4.7
DIP Adjustment
This feature is mostly used when the generator is
coupled to turbo charged engines with limited block
load acceptance. The feature works by increasing the
V/Hz slope to give greater voltage roll off in proportion
to speed.
With the DIP control fully anti-clockwise, the generator
voltage will follow the normal V/Hz line as the speed
falls below nominal. Turning the DIP control clockwise
provides greater voltage roll off aiding engine recovery.
WARNING
Please make sure you have read and understand
the contents of the instruction manual prior to
installation. Incorrect wiring connection may
result in irreversible damage to the product and
other equipments.
SECTION 5 : FITTING AND OPERATING (Refer to generator wiring diagram for connection
details)
ATTENTION
1. AVR can be mounted directly on the engine, genset, switchgear, control panel, or any position that will
not affects operation. For dimension reference, please see Figure 1.
2. All voltage readings are to be taken with an average-reading voltmeter Meggers and high-potential test
equipment must not be used. Use of such equipment could damage the AVR.
3. Improper setting of under-frequency protection could cause the output voltage of the unit to drop or
become unstable under with changes in load. Avoid making any changes to the U/F setting unless
necessary.
4. Set the O/E potemtiometer at max. position when paralleling.
Figure 1
Outline Drawing
DIP
EXC. TRIP
STABILITY
DROOP
TRIM
VOLT
UFRO
LED
C B A
C-A < 90KW
C-B < 90-550KW
B-A < 550KW
115.0
135.0
130.
0
150.
0
48.0
21.5
5.5
