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Related Manuals for Voltronic Power Axpert MKS-4000
Summary of Contents for Voltronic Power Axpert MKS-4000
- Page 1 Axpert MKS-4000/KS-5000 Service manual Axpert MKS Charger/ Inverter Service manual...
- Page 2 Axpert MKS-4000/KS-5000 Service manual Prepared Approved Revision Description Fredricker Initial draft release 2013-11-4...
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Page 3: Table Of Contents
Axpert MKS-4000/KS-5000 Service manual Table of contents General information ............................4 Getting start ............................4 Important safety instructions ....................... 4 Functional block ..............................6 Working principle of the major functional block .................... 7 Switch Power Supply ..........................7 DC TO DC dual converter (Full bridge converter) ................8 Inverter (Full bridge) .......................... -
Page 4: General Information
Axpert MKS-4000/KS-5000 Service manual 1. General information 1.1 Getting start This manual is for Axpert MKS 4KVA-5KVA series, it can help service personal perform the basic maintenance and repair service. This manual focus on the service, so you should get the basic operation of the Inverter/Charger from the user manual, and make sure you had read and understood user manual before you use this service manual. - Page 5 Axpert MKS-4000/KS-5000 Service manual Please refer to INSTALLATION section of this manual for the details. 10. Fuses (40A, 32VDC *4pcs for 1KVA/2KVA and *6pcs for 3KVA) are provided as over-current protection for the battery supply. 11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded wiring system.
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Page 6: Functional Block
Axpert MKS-4000/KS-5000 Service manual 2. Functional block Axpert MKS 4KVA-5KVA series production employ a double conversion topology, comprise following functional blocks, as shown in figure 2.1. MPPT Solar Charge Controller NTC Sensor Input Breaker Safety Relay Inverter Relay Output Relay... -
Page 7: Working Principle Of The Major Functional Block
Axpert MKS-4000/KS-5000 Service manual 3. Working principle of the major functional block 3.1 Switch Power Supply The switch power supply (SPS) supplies DC power for Inverter/Charger operation. The input voltage of the SPS is the battery or AC Charger output voltage. -
Page 8: Dc To Dc Dual Converter (Full Bridge Converter)
Axpert MKS-4000/KS-5000 Service manual 3.2 DC TO DC dual converter (Full bridge converter) The full bridge topology is a transformer isolated forward-mode regulator. Unlike the Fly-back transformer, the push-pull transformer does not store any energy and output current is drawn when either power switches (S1-S4 or S2-S3) is conducting. -
Page 9: Buck Converter
Axpert MKS-4000/KS-5000 Service manual Figure 3.3 Full-bridge topology 3.4 Buck converter The Buck circuit (Figure 3.3) is active only when the line charging the battery. When the battery is discharging, S12 is ON, and S10 is OFF, D10 is reversed cut off, L15 is used as a filter inductor. - Page 10 Axpert MKS-4000/KS-5000 Service manual Figure 3.5 MPPT topology...
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Page 11: Functional Explanations For Each Pcb
Axpert MKS-4000/KS-5000 Service manual 4. Functional explanations for each PCB Item Series name PCB name PCB serial number Quantity Remark Main 71-500264-XXG 71-500244-XXG COMM 71-500245-XXG KS4000 71-500238-XXG CNTL 71-500251-XXG MPPT 71-500362-XXG Main 71-500352-XXG 71-500244-XXG COMM 71-500245-XXG KS5000 71-500238-XXG CNTL 71-500XXX-XXG... -
Page 12: Comm Board
Axpert MKS-4000/KS-5000 Service manual 4.4 COMM board This inverter/charger is equipped with a communication port to communicate with a PC with corresponding software. Please use supplied communication cable to connect to communication port of this inverter and RS-232 port of the PC. - Page 13 Axpert MKS-4000/KS-5000 Service manual Solid On Output is available in bypass mode Green Flashing Output is powered by battery in inverter mode Solid On Battery is fully charged Green Flashing Battery is charging. Solid On Fault mode Flashing Warning mode...
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Page 14: Lcd Display Icons
Axpert MKS-4000/KS-5000 Service manual Function Keys Function Key Description Exit setting mode To previous selection DOWN To next selection ENTER To confirm the selection in setting mode or enter setting mode 5.2 LCD Display Icons Icon Function description Input Source Information Indicates the AC input. - Page 15 Axpert MKS-4000/KS-5000 Service manual Indicate output voltage, output frequency, load percent, load in VA and load in Watt. Battery Information Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% in battery mode and charging status in line mode. In AC mode, it will present battery charging status.
- Page 16 Axpert MKS-4000/KS-5000 Service manual Load Information Indicates overload. Indicates the load level by 0-24%, 25-50%, 50-74% and 75-100%. 0%~25% 25%~50% 50%~75% 75%~100% Mode Operation Information Indicates unit connects to the mains. Indicates unit connects to the PV panel. Indicates load is supplied by utility power.
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Page 17: Troubleshooting
Axpert MKS-4000/KS-5000 Service manual 6. Troubleshooting This section describes how to find the trouble when the system is abnormal. We suggest you can follow the service procedure: Check the system status by LED and LCD display, the sounds of buzzer. -
Page 18: Warning Indicator
Axpert MKS-4000/KS-5000 Service manual Over DC voltage on output of inverter Battery connection is open Current sensor failed 6.2 Warning Indicator Warning Warning Event Audible Alarm Icon flashing Code Beep three times every Fan is locked second Beep once every... - Page 19 Axpert MKS-4000/KS-5000 Service manual setting is correct (UPSAppliance) Green LED is Set Solar power as the priority of Change output source flashing. output source priority to Utility first. When the unit is turned on, internal LCD display and Check if battery wires are relay is switched Battery is disconnected.
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Page 20: Quick Start
Axpert MKS-4000/KS-5000 Service manual 6.4 Quick start Before any detail check of the system, please check the components listed as follow table. NOTE: It is important to check the capacitor’s voltage on the board lower than the safety voltage before any check action.
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