Monicon International Co., Ltd AVR-15
AVR-15
User Manual
Web Site：http://www.monicon.com.tw
E-mail：
sales@moni c o n .com.tw
Monicon International Co., Ltd AVR-15
1. Description:
The AVR-15 stabilizes the output voltage by detecting the phase output and make
necessary adjustments to the exciter accordingly. The AVR-15 is suitable for use on
brushless generator model.
2. Wiring：：：：
The range of sensing the phase voltage in the AVR-15 is AC 110 /220V. The input
voltage for AVR-15 is 100 ~ 240VAC, 50/60Hz. Please follow the instructions and wiring
diagram for the AVR-15 to prevent any malfunctions.
2.1.
2.1.2.1.
2.1. AC input Terminals are for Genset voltage sensing and power for AVR-15.
※
※※
※Warning：
：：
：The power input for AVR
The power input for AVRThe power input for AVR
The power input for AVR----15
1515
15 must not exceed
must not exceed must not exceed
must not exceed 24
2424
240V AC.
0V AC.0V AC.
0V AC.
2.2.
2.2.2.2.
2.2. Connect output terminals(F+)、(F-) to the exciter on the generator.
2.3.
2.3.2.3.
2.3. External connector EXT.VR is for external potentiometer (1KΩ 1W VR).
※
※※
※Warning：
：：
：Please use AWG1
Please use AWG1Please use AWG1
Please use AWG14444 or
or or
or 2.05
2.052.05
2.05mm
mmmm
mm
2222
85
8585
85℃℃℃℃ 600 V
600 V 600 V
600 V wire for connectors
wire for connectors wire for connectors
wire for connectors AC
ACAC
AC、、、、F+
F+F+
F+、、、、
FFFF----. For use on external potentiometer, please use ins
. For use on external potentiometer, please use ins. For use on external potentiometer, please use ins
. For use on external potentiometer, please use insolated wires.
olated wires.olated wires.
olated wires.
3. Adjustments：：：：
3.1 Frequency Setting：：：：
Please switch frequency selector to “ON” position when rated frequency is 50Hz
3.2 Voltage Setting：：：：
Please switch voltage selector to “ON” position when the rated output phase voltage
is 110V AC.
※※※※Warning
WarningWarning
Warning：：：： Pl
PlPl
Please pay extra attentions
ease pay extra attentions ease pay extra attentions
ease pay extra attentions when
when when
when set
setset
setting
tingting
ting up the voltage and frequency
up the voltage and frequency up the voltage and frequency
up the voltage and frequency
selectors
selectorsselectors
selectors;;;; incorrect settings could damage the AVR or the generator.
incorrect settings could damage the AVR or the generator.incorrect settings could damage the AVR or the generator.
incorrect settings could damage the AVR or the generator.
※※※※Note
NoteNote
Note：：：： MMMMake sure all the wires, connections, and settings are all
ake sure all the wires, connections, and settings are all ake sure all the wires, connections, and settings are all
ake sure all the wires, connections, and settings are all correct
correctcorrect
correct and turn
and turn and turn
and turn
the
the the
the Volt
VoltVolt
Volt and
and and
and SSSStable
table table
table fully
fully fully
fully counterc
counterccounterc
counterclockwise
lockwiselockwise
lockwise before starting the generator.
before starting the generator.before starting the generator.
before starting the generator.
Monicon International Co., Ltd AVR-15
3.3 Genset Voltage Fine Tune(Volt)：：：：
After Genset has successfully started and in rated speed, slowly turn Volt clockwise
to the rated voltage. (If EXT.VR is connected with a potentiometer, please adjust the
potentiometer to the center position)
3.4 Genset Stabilization Adjustment(Stable)：：：：
To adjust the feedback timing, slowly turn the Stable clockwise. We suggest using
analog DC voltmeter to monitor (F+) and (F-) then fine tune the meter until the
movement is at minimum. Over adjustment may cause unstable voltage output. Under
adjustment may have significant changes on the output voltage under heavy load.
3.5 Genset Low Frequency Setting(U/F)：：：：
Please do not adjust this setting, the U/F setting has been adjusted at the factory. Its
purpose is to activate the low frequency protection. When the output frequency of the
generator is lower than this setting, the AVR ceases the output and activates LED warning
light automatically.
4. Excitation：：：：
※ Warning
WarningWarning
Warning：：：：Incorrect wiring of G
Incorrect wiring of GIncorrect wiring of G
Incorrect wiring of Genset or
enset or enset or
enset or operation
operationoperation
operation of
ofof
of the AVR
the AVR the AVR
the AVR for the first time
for the first time for the first time
for the first time or the
or the or the
or the
residual magnetism voltage is less than 5V or (F+) and (F
residual magnetism voltage is less than 5V or (F+) and (Fresidual magnetism voltage is less than 5V or (F+) and (F
residual magnetism voltage is less than 5V or (F+) and (F----) is connected
) is connected ) is connected
) is connected reversely
reverselyreversely
reversely;;;;
the generator
the generator the generator
the generator wwwwill
ill ill
ill nnnnoooot be able to
t be able tot be able to
t be able to build up voltage.
build up voltage.build up voltage.
build up voltage.
If the Genset can not build up the voltage, please shut down the generator and than
perform the following steps：
4.1.
Please shut down the generator and check the wiring.
4.1.1 Incorrect wiring：Please rewire and than start the generator again.
4.1.2 If Genset still can not build up the voltage, please shut down the generator
and proceed to step 4.2.
4.1.3 If wiring is correct, please shut down the Genset and proceed to step 2.
4.2.
Please shut down the generator before perform the following steps
4.2.1 Reverse (F+) and (F-) connections, than start the Genset again.
4.2.2
If Genset still can not build up the voltage, an external power source must be
Monicon International Co., Ltd AVR-15
used to excite the magnetism. Please make sure the generator has been
completely shut down before proceed to step 3.
4.3 . Please shut down the generator before perform the following steps
4.3.1 Disconnect AVR terminals (F+) and (F-), then use 3-12V DC (e.g. battery) as
power source and connect the positive terminal to a current limiting resistor
5~50Ω／30W, then connect to the positive terminal of the Genset and
negative to the negative terminal of the Genset. (Please refer to figure. 4)
Power up for 3 seconds and then disconnect the power source. Remove the
AVR power input and start the Genset. Wait until the rated idle speed, than
measure the residual magnetic voltage.
4.3.2 If the residual magnetic voltage is greater than 5V AC, please shut down the
Genset and reconnect the AVR than start the Genset again.
4.3.3 If the residual magnetic voltage is less than 5V AC, please repeat step 3
again.
4.4. If the residual magnetic voltage is greater than 5V AC and the Genset still can not
build up the voltage, please replace with another AVR.
※※※※Warning
WarningWarning
Warning：：：： Over excitation may damage the exciter or the AVR.
Over excitation may damage the exciter or the AVR.Over excitation may damage the exciter or the AVR.
Over excitation may damage the exciter or the AVR.
5. Specifications：：：：
Voltage Detection Range(A、、、、C)
Voltage 110／220, single phase 2 wires,
Frequency 50／60 Hz
(Factory default setting: 220VAC, 60 Hz)
Input Voltage Range(B、、、、C)
Voltage: 100～240 VAC single phase 2 wires
Frequency: 50／60 Hz
Voltage Adjustable Range
When External VR is 1KΩ and ±
7%
Min. rated power is 1W
Voltage Adjustable Rate:
Voltage Adjustable Rate:Voltage Adjustable Rate:
Voltage Adjustable Rate:
＜ ±0.5 %
Min. Excitation Voltage:
Min. Excitation Voltage:Min. Excitation Voltage:
Min. Excitation Voltage:
Residual voltage > 5 VAC
Magnetic
MagneticMagnetic
Magnetic Fie
FieFie
Field
ldld
ld Output:
Output:Output:
Output:
Continuous current:15A，intermittent: 20 A
Exciter Resistance:
Exciter Resistance:Exciter Resistance:
Exciter Resistance:
15Ω(Min)
100Ω(Max)
Monicon International Co., Ltd AVR-15
Low Frequency Protection
Low Frequency ProtectionLow Frequency Protection
Low Frequency Protection:
Genset 60 Hz: Lower than 55Hz, AVR ceases
output (Default setting)
Genset 50 Hz: Lower than 45Hz, AVR ceases
output (Default setting)
EMI Protection:
EMI Protection:EMI Protection:
EMI Protection:
Build in EMI filter
Power Consumption:
Power Consumption:Power Consumption:
Power Consumption:
10 Watt(Max)。
Fuse
FuseFuse
Fuse
16A / 250V / 20mm
Working Temperature:
Working Temperature:Working Temperature:
Working Temperature:
0 ℃ ～ 65 ℃。
Storage Temperature:
Storage Temperature:Storage Temperature:
Storage Temperature:
﹣20 ℃ ～ 85 ℃。
Dimensions:
Dimensions:Dimensions:
Dimensions:
W 100 * H 58 * D 150 mm。
Weight:
Weight:Weight:
Weight:
312g ± 15g
6. Troubleshooting：：：：
Scenario Possible Cause Solution
No output
voltage
Bad connections on (F+、F-)
Low residual voltage
Low engine speed
Faulty generator
Blown Fuse
Please refer to figure 3 and 4.
Please see 4.3、figure4
Please refer to Genset manual
Please refer to Genset manual
Replace fuse with same spec.
High output
voltage
Bad connections or incorrect settings
on voltage sensing switch.
Please refer to figure 3 and 4
Low output
voltage
Incorrect settings on Voltage sensing
switch
Bad connections on external
potentiometer
Faulty or damaged potentiometer
Low engine speed
Incorrect exciter installed
Blown Fuse
Please refer to figure 3 and45
Please check the wiring and
follow the diagram
Test and replace potentiometer
Please refer to Genset manual
Please refer to Genset manual
Replace fuse with same spec
Unstable
output voltage
Miss adjustment on STAB
Burned Fuse
Too much current on exciter Please refer to Genset manual
Replace fuse with same spec
Monicon International Co., Ltd AVR-15
7. Dimensions:
Figure 1
Figure 1Figure 1
Figure 1
Figure
Figure Figure
Figure 2222
Monicon International Co., Ltd AVR-15
8. Wiring Diagram and Settings：：：：
Figure 3
Figure 3Figure 3
Figure 3
Monicon International Co., Ltd AVR-15
Figure
Figure Figure
Figure 4444：：：：Excitation
ExcitationExcitation
Excitation
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