AVR-15 User Manual
Contents
1. selectors incorrect settings could damage the AVR or the generator Note Make sure all the wires connections and settings are all correct and turn the Volt and Stable fully counterclockwise before starting the generator MOnicon International Co Ltd AVR 15 J 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 X Warning Incorrect wiring of Genset or operation of the AVR for the first time or the residual magnetism voltage is less than 5V or F and F is connected reversely the generator will not be able to build up v2. D 150 mm 9 Weight 3122 15g 6 Troubleshooting Scenario Possible Cause Solution e Bad connections F F Please refer to figure 3 and 4 e Low residual voltage Please see 4 3 figure4 No output e Low engine speed refer to Genset manual e Faulty generator Please refer to Genset manual e Blown Fuse Replace fuse with same spec High output e Bad connections or incorrect settings Please refer to figure 3 and 4 voltage on voltage sensing switch e Incorrect settings on Voltage sensing Please refer to figure 3 and45 switch e Bad connections on external Please check the wiring and Low output potentiometer follow the diagram voltage e Faulty or damaged potentiometer Test and replace potentiometer e Low engine speed Please refer to Genset manual e Incorrect exciter installed Please refer to Genset manual e Blown Fuse Replace fuse with same spec Unstable e Miss adjustment on STAB output voltage Burned Fuse Too much current on exciter Please refer to Genset manual Replace fuse with same spec 15 nicon 9 Figure 1 Figure 2 AVR 15 Monicon International Co Ltd monicon 8 8 Wiring Diagram and Settings 8 ancon MOnicon International Co Ltd 9 9 Figure 4 Excitation
3. 0 ancon MOnicon International Co Ltd AVR 15 J AVR 15 User Manual monicon Web Site htto www monicon com tw E mail sales monicon com tw MOnicon International Co Ltd AVR 15 5 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 AC input Terminals are for Genset voltage sensing and power for AVR 15 X Warning The power input for AVR 15 must not exceed 240V AC 2 2 Connect output terminals F F to the exciter on the generator 2 3 External connector EXT VR is for external potentiometer 1W Warning Please use AWG14 2 05mm 85 C 600 wire for connectors F F For use on external potentiometer please use insolated 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 110 Warming Please pay extra attentions when setting up the voltage and frequency
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5. oltage If the Genset can not build up the voltage please shut down the generator and than perform the following steps 4 1 5 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 15 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 J ancon 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 5 500 30 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 If the residual magnetic voltage is greate
6. r than 5V AC please shut down the Genset and reconnect the AVR than start the Genset again 4 3 3 again If the residual magnetic voltage is less than 5V AC please repeat step 3 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 5 Specifications Over excitation may damage the exciter or the AVR Voltage Detection Range A Voltage 110 220 single phase 2 wires Frequency 50 760 Hz Factory default setting 220VAC 60 Hz Input Voltage Range B Voltage 100 240 VAC single phase 2 wires Frequency 50 60 Hz Voltage Adjustable Range When External VR is IKQ 7 Min rated power 15 W Voltage Adjustable Rate lt 0 5 Min Excitation Voltage Residual voltage gt 5 VAC Magnetic Field Output Continuous current 15A intermittent 20 A Exciter Resistance 15 Q Min 1000 5 monicon Monicon International Co Ltd AVR 15 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 Build in EMI filter Power Consumption 10 Watt Max Fuse 16 250V 20mm Working Temperature 0 65 Storage Temperature 20 85 Dimensions W 100 H 58
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