AVR-051 User Manual
Contents
1. ancon Monicon International Co Ltd AVR 051 p AVR 051 User Manual J monicon Web Site htto www monicon com tw E mail salesOmonicon com tw p con Monicon International Co Ltd AVR 051 1 Description The AVR 051 stabilizes the output voltage by detecting the phase output and make necessary adjustments to the exciter accordingly The AVR 051 is suitable for use on brushless generator model 2 Wiring The range of sensing the phase voltage A C in the AVR 051 is AC 220 380 440 480V The input voltage for AVR 051 B C is 100 300V AC 50 60Hz Please follow the instructions and wiring diagram for the AVR 051 to prevent any malfunctions 2 1 Input Terminals B C are the power input for AVR 051 Terminals A C are for Genset voltage sensing and 1t can be wired independently See figure 2 or in parallel if the rated power output 1s AC 220V See figure 3 default setting X Note Independent connection can reduce the adjustments of voltage deficit 2 2 If the rated voltage output on the Genset is AC 380 440 480V the voltage sensing terminals must be wired independently as show on figure 4 and 5 X Warning The power input for AVR 051 must not exceed 300V AC 2 3 Connect output terminals F F to the exciter on the generator J KO 2 4 External connector EXT VR is for external potentiometer 1K 2 1W VR and must be shorted when not 1n use X Warning Please use AWG12. 60 Hz Input Voltage Range B C Voltage 100300 VAC single phase 2 wires Frequency 50 760 Hz Voltage Adjustable Range When External VR is IKQ and 17 Min rated power 1s 1W Voltage Adjustable Rat Min Excitation Voltage Residual voltage gt 5 VAC Magnetic Field Output Continuous current 4 8A gt intermittent 5 2 A Exciter Resistance 15 Q Min 1000 Max 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 ancon Monicon International Co Ltd AVR 051 p 6 Troubleshooting e Bad connections on B C F F Please refer to figure 2 and 5 e Low residual voltage Please see 4 3 figure6 No output e Low engine speed Please refer to Genset manual voltage e Faulty generator Please refer to Genset manual e Blown Fuse Replace fuse with same spec High output e Bad connections on A C or Please refer to figure 2 5 and 8 voltage incorrect settings on voltage sensing switch e Incorrect wiring on A OB gt C Please refer to figure 2 5 e Incorrect settings on Voltage sensing Please refer to figure 7 switch e Bad connections on external Please check the wiring and Low output I potentiometer follow the diagram voltage e Faulty or damaged potentiometer Test and replace potentiometer e Low engine speed Please refer to Genset manual e Inco
3. 6 or 125mm 85 C 600 V wire for connectors A B C F F For use on external potentiometer please use insolated wires ancon Monicon International Co Ltd AVR 051 p 3 Adjustments 3 1 Frequency Setting Please switch PIN 1 on the frequency selector to ON position when rated frequency is 50Hz Please refer to Figure 8 3 2 Voltage Setting Please switch pin 2 and pin 3 of the voltage selector to ON position when the rated output phase voltage is 220V AC please refer to figure 2 3 and 8 Switch pin 2 to ON and pin 3 to off position on the voltage selector when rated output phase voltage is 380V AC please refer to figure 4 and 8 Switch pin2 and pin 3 to OFF position on the voltage selector when rated output phase voltage 1s 440 480V AC please refer to figure 5 and 8 lt Warning Please pay extra attentions when setting up the voltage and frequency 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 STAB fully counterclockwise before starting the generator 3 3 Genset Voltage Fine Tune VOLT After Genset has successfully started and in rated speed slowly turn VOLT clockwise to the rated voltage Uf EXT VR 1s connected with a potentiometer please adjust the potentiometer to the center position 3 4 Genset Stabilization Adjustment ST
4. AB To adjust the feedback timing slowly turn the STAB clockwise We suggest using analog DCV meter 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 loads ancon Monicon International Co Ltd AVR 051 p 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 1s to activate the low frequency protection When the output frequency of the generator 1s lower than this setting the AVR ceases the output automatically 4 Excitation lt lt Warning Incorrect wiring of Genset or operation of the AVR for the first time or the residual magnetism voltage is less than SV or F and F is connected reversely the generator will not be able to 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 1s correct please shut down the Genset and proceed to step 2 4 Please shut down the generator before perform the following steps 4 2 1 Reverse F and F co
5. nnections than start the Genset again 4 2 2 If Genset still can not build up the voltage an external power source must be 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 30W then connect to the positive terminal of the Genset and negative to the negative terminal of the Genset Please refer to figure 76 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 1s greater than 5V AC please shut down the Genset and reconnect the AVR than start the Genset again ancon Monicon International Co Ltd AVR 051 p 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 X Warning Over excitation may damage the exciter or the AVR 5 Specifications Voltage Detection Range A C Voltage 220380440480 VAC single phase 2 wires Frequency 50 60 Hz Factory default setting 220VAC
6. rrect exciter installed Please refer to Genset manual e Blown Fuse Replace fuse with same spec Unstable e Misadjustment on STAB Please see 3 4 eel erat vara Burned Fuse e Too much current on exciter Please refer to Genset manual nn nn AVR 051 Monicon International Co Ltd con O E 7 Dimensions AVR 05 E O lt O E o 110 0 Figure 1 AVR 051 con Monicon International Co Ltd fe E 8 Wiring Diagram and Settings 2 X NM E 220V 50HZ 220V 60 HZ 220V 50HZ 220V 60 HZ Figure 3 220V Setting Figure 2 220V Setting m oncon Monicon International Co Ltd AVR 051 Figure 4 380V Setting UUUUUUUUUUUUUUUUI E f Sill i iin Figure 6 Fuse Location Figure 5 440V 480V Setting 0 Zz ancon Monicon International Co Ltd AVR 051 m SWITCH 5 50 Field OHM TE L DIODE km BA T To U F STAB VOLT Figure 7 Excitation 440V 480V 440V 480V 220V 50HZ 220V 60HZ 380V 50HZ 380V 60HZ 50HZ 60HZ ON EEE D ON EE ON ON ON oat Lik 11 AR ii id UAE 123 i238 Pin 1 Frequency Switch Pin 2 3 Voltage Switch ON WAR AR 2uES nn TAE Figure 8 Voltage Frequency Selection
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