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ADVR-073
3
SECTION 3 : WIRING
3.1
A to C : Sensing Input
3.1.1 DIP SW-2 is switch ON, voltage sensing range
from 170
260 Vac (See Figure 3 & 4)
3.1.2 DIP SW-2 is switch OFF, voltage sensing range
from 340
520 Vac (See Figure 5)
3.2
B to C : Power Input
Power Input terminals from B to either C use 100
to 300 Vac shunt or auxiliary windings.
3.3
Power Input Voltage Selection
If generator rated voltage is 220 Vac (Line to line
phase voltage), the power input B, C and sensing
input A, C can be joined (See Figure 4) or
separately (See Figure 3).
3.4
F+, F
: Connect generator field wires
3.4.1 F+ and F- are the positive and negative excitation
output terminals.
3.4.2 EXT.VR is the connections for the external
voltage adjustment. Use a (1K ohm 1W) rheostat
when not in use, keep terminals shorted.
※
Always use high quality connection wire AWG16
or 1.25mm
2
85-degrees C, 600V to connection
terminals A, B, C, F+ and F-.
SECTION 4 : DIP SWITCH SETTING
4.1
SW-1 Frequency
4.1.1 DIP SW-1 switch ON, for use in 50 Hz
4.1.2 DIP SW-1 switch OFF, for use in 60 Hz
4.2
SW-2 Sensing Voltage Selection
4.2.1 DIP SW-2 switch ON, input voltage 170
260
Vac.
4.2.2 DIP SW-2 switch OFF, input voltage 340
520
Vac.
4.3
SW-3 Activate Over-Excitation Protection
4.3.1 DIP SW-3 switch ON, Over Excitation Protection
Disabled. If over excitation occurs, the O/E LED
turns-on, but the ADVR will not shutdown and
protect.
4.3.2 DIP SW-3 switch OFF. Over Excitation Protection
activated. If over excitation occurs, the O/E LED
turns-on and the ADVR will shutdown excitation.
SECTION 5 : SYSTEM PROTECTION
5.1
Under Frequency Protection (Roll off)
5.1.1 To prevent over excitation, if the generator runs at
the wrong speed the ADVR activates the under
frequency protection and decreases field excitation.
5.1.2 Dip switch 1 together with the U/F adjustment,
sets the Knee-Point frequency were this
activation takes place. This adjustment is already
factory preset.
5.1.3 When engine frequency falls under the
Knee-Point frequency setting, the U/F protection
indication LED turn on. However, when the
Generator frequency
is higher than the
Knee-Point frequency the LED turns off.
5.2
Over Excitation Protection
5.2.1 If you are using a standard AVR and you
overload the generator or the sensing wires get
disconnected (on a auxiliary powered AVR) , the
excitation voltage rapidly increase, causing
severe damage to the AVR or exciter. The
ADVR-073 has over
excitation
protection
shutdown that cuts excitation at once.
5.2.2 When over excitation protection is activated and
the excitation voltage exceeds 78 +/- 5 Vdc @
220V for over 5 seconds, the AVR immediately
shutdown the excitation output, leaving only the
residual voltage output and turning on the O/E
shutdown LED. To reset, the engine must come
to a complete stop for at least 10 seconds and
then restarted.
5.2.3 If over excitation protection is disabled, the
warning LED indication turn on, but the excitation
output is not disconnected.
SECTION 6 : ADJUSTMENT
6.1
VOLT : Voltage Adjustment
6.1.1 DIP SW-2 switch ON, input voltage 170
260
Vac.
6.1.2 DIP SW-2 switch OFF, input voltage 340
520
Vac.
6.2
STAB : Stability Adjustment
6.2.1 careful adjust the STAB (Stability) adjustment,
improves the AVR and generator feedback time
to improve voltage stability.
6.3
U/F : Setting the under-frequency knee point
6.3.1 DIP SW-1 set to ON, set for 50 Hz operation.
6.3.2 U/F adjustment range at 50 Hz is from 40
50 Hz
(Factory preset @ 45 Hz).
6.3.3 DIP SW-1 set to OFF, set for 60 Hz operation.
6.3.4 U/F adjustment range at 60 Hz is from 50
60 Hz
(Factory preset @ 55 Hz).
