______________________________________________________________________________________
EA04C 3
3. Ensure proper fuse is installed.
4. Turn voltage and stability potentiometer full
anticlockwise (lowest voltage level).
5. If used, turn external voltage potentiometer to the
middle position.
6. Use 600 VAC Voltage meter connect to AC
output terminal and measure the output voltage.
5.2 Startup Procedure
1. To start and run the generator at no load and
rated speed. The generator output voltage
should build up to a minimum level if the voltage
does not build up, It may cause by low residual
voltage of generator. Refer to field flashing
section in generator manual.
2. Slowly adjust voltage potentiometer until the
generator voltage reach the proper value.
6. STABILITY ADJUSTMENTS
1. Slowly rotate the STAB control in the clockwise
(CW) direction will change the AVR and
generator’s response time, if over adjusted the
voltage will become unstable, if under, the
instant heavy load voltage will change
significantly.
2. It is advised to use a voltmeter DCV to adjust the
STAB control F+, F–until the oscillate becomes
minor. By doing so helps to improve and reduce
the voltage change under heavy load.
7. FIELD FLASHING
When the regulator is operated with the generator
for the first time, the polarity residual magnetism
may not correct or the magnitude not enough. If the
generator does not build-up after startup, shut down
the prime mover and proceed with the following
steps :
1. With the prime mover at rest, apply a dc source
(not grounded) of not more than 12V, to
terminals F+ (positive) and F–(negative) in
series with a limiting resistor of 3 ~ 5 ohms.
2. Allow approximately 3 seconds before removing
the dc source.
3. Start prime mover and measure voltage at
regulator leads 3 and 4. If voltage is greater then
5 volts, voltage build-up should be successful.
Repeat field flashing procedure if less than 6V
residual is measured.
4. If repeating steps 1 and 2 does not result in
generator voltage build-up, replace the voltage
regulator.
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.
Volt
EXT
VR
FUSE
5A SW Stab
FUSE VR
EXT
Volt
SW
Stab
F- 3F+ 4 P
(% OF NOMINAL)
GENERATOR OUTPUT VOLTAGE
0
40
20
60
10 20 30 40 6050
80
100
120
50HZ 60HZ
FREQUENCY (HZ)
Outline dimension
Figure 1
Frequency compensation curves
Figure 2
