___________________________________________________________________________________________
EA448B
3
SECTION 3: DIP SWITCH SETTING
40
50
(50)
(60)
S
F
J1
J1
1 2 3
J2
1 2 3
J2
X1
、
X2
：
Power Input
Connect working voltage, Max. 150Vac
Z1
、
Z2
：
Auxiliary Power Input
Connect Auxiliary voltage, Max. 150Vac
50Hz
、
60Hz
：
Frequency Selection
E+
、
E-
：
Excitation Output
Connect to generator excitation field
E1
、
E2
：
Sensing Input
Connect sensing input voltage Max. 600Vac
Sensing Input Voltage Selection
1 OFF 2 OFF
：
110Vac (95~140V)
1 ON 2 OFF
：
220Vac (170~260V)
1 ON 2 ON
：
380Vac (340~520V)
S1
、
S2
：
Quadrature Droop Input
Connect to generator CT
1KΩ
：
External Voltage Adjustment
Connect to external 1KΩ potentiometer
Terminals must be shorted when not in used
3Ph.
：
Three Phase Sensing Input
Connect to Three Phase Sensing
Module
EXC.MAX.
：
Over Excitation Current Limiting
Excitation output will be turn off when excitation
current is over the setting value
Min. 3.5A, Max. 10A
V/Hz
：
Under Frequency Adjustment
Adjustment for Under frequency and LAM
knee point
STAB.
：
Stability Adjustment
Under no-load operation, slowly adjust the
STAB VR counterclockwise until the
voltage is unstable, and then adjust it
clockwise for about 1/5 circle
VOLT
：
Voltage Adjustment
Adjust Generator output voltage
Adjustment range can be set by DIP SW
STAT.
：
Quadrature Droop Adjustment
Adjust the ratio of the idle power to the
voltage drop, when used in parallel.
Adjustment range is 0% to 7%
J1
Connected
：
With LAM protection
LAM
：
When Generator is loading the Engine speed will be
reduced. When engine speed is lower than pre-set frequency
threshold (V/Hz knee point), AVR will reduce voltage in 13%
or 25% (set by J2). This will make the active power of loading
reduce 25% to 45%, until engine speed reach pre-set value
once again then voltage will resume to normal value.
J1 Disconnected
：
Without LAM protection
When J2 1
–
2 is shorted
：
Drop ratio 13% in LAM voltage
When J2 2
–
3 is shorted
：
Drop ratio 25% in LAM voltage
LED
：
LED will illuminate when AVR in normal operation
ST6
ST1
ST2
VOLT
STAB.
V/Hz
EXC.MAX.
J1
J2
ST7
1 2 3
STAT.
X2
Z1
X1
Z2
E+
E-
E1
E2
50Hz 60Hz
LED
EA448B
ST1
：
Single Phase / Three Phase Sensing Selection
Shorted
：
Single phase sensing
Open
：
Three phase sensing (must use with Three Phase Sensing Module)
ST2
：
Response Time Selection
Shorted
：
Slow
Open
：
Fast
Select response time according to Stability adjustment
ST6
：
Instantaneous Compensation for Voltage
Shorted
：
For Generator less than 600 KVA
Open
：
For Generator greater than 600 KVA
ST7
：
Keep shorted
