___________________________________________________________________________________________
EA45A220
3
Figure 5
Figure 3
Figure 6
Manual Field Flash
SECTION 3 : WIRING CONNECTION
G
~
Field
BATT.
FIELD
POWER
EA45A220
220VAC
T
S
F-
F+
B+
B-
R
SECTION 4 : FREQUENCY SELECTION
AND KNEE POINT ADJUSTMENT
4.1
Frequency Selection
Detach the controller from enclosure(refer to Figure 4)
and select the system frequency on the back of the
controller(refer to Figure 5).
J1
EA45AF PCB
VR
Black
Mage
nta
Yellow
Red
1
4
3
2
J1
J2
Close : 60Hz
HZ
HZ
Open : 50Hz
Pink
Blue
Whit
e
7
6
5
EXT. VR
VR
1K Ohm
close :enable Low frequency protection
open :disable Low frequency protection
(Reverse Side)
4.2
Knee Point Adjustment
4.2.1 Turn the U/F POT fully clockwise.
4.2.2 Adjust VOLT POT to nominal level and speed
down the engine to knee point.
4.2.3 Turn the U/F POT counter-clockwise until the
voltage starts to decrease (U/F lamp illuminates),
re-adjust engine speed to rated speed.
SECTION 5 : FIELD FLASHING
When the regulator is installed correctly but the
generator is failed to generate power. Besides carbon
brushes were worn out, here are two possible causes
below.
5.1
The polarity of field is inverse
Solution
：
Exchange the connection of F+ and F-.
5.2
The residual voltage is less than 5 Vac,
Solution 1
：
5.2.1 Shut down generator, disconnect the wiring
between AVR and generator then flash the field.
Flashing duration = 3 seconds. (See wiring in
Figure 6)
Resistor 3
– 5 ohms for full wave AVR
Resistor 5
– 10 ohms for half wave AVR
Warning
!!
Over field flashing may damage
the field winding of generator.
5.2.2 Restart generator and measure the residual
voltage by AC Voltmeter, if it is still less than 5
Vac, repeat the previous process, after several
times, the residual voltage still cannot be built,
Kutai EB500 is strongly recommended, see
Figure 6.
Field
SW
R
-
+
V
F+
F-
BATT.
~
G
~
T
S
R
Figure 4
Fig. 6
