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Table of Contents
Related Manuals for Must PV1800 2K HM
Summary of Contents for Must PV1800 2K HM
- Page 1 Service Manual PV18-2K/3K HM Inverter/Charger PV1800 2K/3K HM Service Manual...
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Page 2: Table Of Contents
Service Manual PV18-2K/3K HM Table of Contents 1. General Information....................1 1.1 Brief Introduction ....................1 1.2 Basic Topology Introduction..................1 1.3 Overview of Inverter/Charger..................2 2. Fault and Troubleshooting..................3 3. Steps to Repair ......................4 3.1 Maintenance......................4 3.1.1 To Check DC FUSE and Capacitance............4 3.1.2 DC/DC Boost Module..................5 3.1.3 Divers......................6 3.2 To Check BUS Module....................9... -
Page 3: General Information
Service Manual PV18-2K/3K HM 1. General Information 1.1 Brief Introduction This manual is used as a tool of inspection and repairing guidance for PV18-2K/3K HM, as well as instructions of assembling and testing. It is best to have some electrical or electronic background knowledge. With this guidance, hope it will help you to check and inspect the inverter/charger first by yourself. -
Page 4: Overview Of Inverter/Charger
Service Manual PV18-2K/3K HM 1.3 Over review and Introduction of Inverter /charger Parts Main Board Solar Charge Controller & Control Board - 2 -... -
Page 5: Fault And Troubleshooting
Service Manual PV18-2K/3K HM 2. Fault and Troubleshooting No LCD First to test battery volt to check whether it is in range of 44v-52v; display when If it is in the range, to switch the inverter one to check whether the inverter turns unit starts. -
Page 6: Steps To Repair
Service Manual PV18-2K/3K HM 3. Steps to Repair 3.1 Battery Working Mode Test 3.1.1 To Check DC FUSE and Capacitance F1-F6: 180-00001-00 (Fuse, F40A/32VDC UL) Positioning Attribute Reference Value Failure Status F1-F6 Resistor 0 ohm open C19,C20,C39,C40: 140-00093-00 (Electrolytic Capacitor, 4200uF 35V M RAD 7.5mm 105℃) - 4 -... -
Page 7: Dc/Dc Boost Module
Service Manual PV18-2K/3K HM If the capacitors explode, they need to be replaced. 3.1.2 DC/DC Boost Module 150-00052-00:MOSFET TI/CSD19505KCS 201A 80V N BULK TO-220 Positioning Attribute Reference Value Failure Status All MOSFET, 8pcs Diode SD:0.44V Short-circuit DS:OL or Explosion Note If one or more than one of them were broken, please replace all of them. For 2K, the main board has just 6pcs MOSFETS. -
Page 8: Divers
Service Manual PV18-2K/3K HM 3.1.3 Divers Note: when there are power devices or components are damaged, Divers are usually required to check. The reference resistors listed as below. R373,R7,R8,R9,R10,R11,R12,R13,R14,R79,R257 All the resistors are 100-10010-00 (RES CHIP TF 1/4W 10 F(1206)) To use Multi-meter to measure each resistors till to find out the broken ones and to replace them, no need to change all the resistors. - Page 9 Service Manual PV18-2K/3K HM UC2,UC4:150-00005-00 (Plug-in Transistor TOSHIBA/2SC2655-Y 2A 50V) UC1,UC3:150-00004-00 (Plug-in Transistor TOSHIBA/2SA1020-Y 2A 50V) - 7 -...
- Page 10 Service Manual PV18-2K/3K HM Positioning Attribute Reference Value Failure Status UC2,UC4 Diode BE:0.6V Short-circuit or burnt BC:0.6V CE:1V UC1,UC3 Diode BE:0.6V Short-circuit or burnt BC:1.3V CE:0.2V Pin9 Pin16 Pin9 Pin16 Pin1 Pin1 Pin8 Pin8 U3: 160-00006-00 ( Plug-In : IC LINEAR FAIRCHILD/KA3525A) Positioning Attribute Reference Value...
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Page 11: To Check Bus Module
Service Manual PV18-2K/3K HM 3.2 To Check BUS Module 3.2.1 Rectifier Diode D17,D18,D19,D20 Rectifier Diode: D17,D18,D19,D20: 150-10042-00 (FAIR./RHRP1560_NL 15A 600V) Positioning Attribute Reference Value Failure Status +to-: 0.37V D17,D18,D19,D20 Diode Short Circuit -to+: OL or Broken Note: If there is one or more than one components broken, please replace them all. - 9 -... -
Page 12: To Check Full Bridge Invert Circuit
Service Manual PV18-2K/3K HM 3.3 To Check Full-Bridge Invert Circuit 3.3.1 Power Parts Q16,Q17,Q18,Q19:150-30088-00 (IGBT IR/IRGP4063D-EPBF 48A 600V TO-247) Positioning Attribute Reference Value Failure Status Q16,Q17,Q18,Q19 Diode EC: 0.4V Short Circuit CE: OL or Broken 3.3.2 Divers INV IGBT: Q16,Q17,Q18,Q19 - 10 -... - Page 13 Service Manual PV18-2K/3K HM R53,R55,R60,R63: 100-17047-00 (SMD Resistor CHIP TF 1/4W 4.7 F(1206)) R54,R56,R61,R64: 100-10100-00 (SMD Resistor CHIP TF 1/4W 100 F(1206)) ZD2,ZD3: 120-20072-00 (SMD Zen-er Diode PAN JIT 1SMA4745 16V 1W SMD) D10,D12: 120-20007-00 (SMD Diode PANJIT/SS14 1A 40V SMD) Positioning Attribute Reference Value...
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Page 14: To Check Drivers
Service Manual PV18-2K/3K HM 3.3.3 To Check Drivers U24,U25,U26,U27: 120-10065-00 (IC Driver Chip FOD3120 SMT) Positioning Attribute Reference Value Failure Status U24,U25,U26,U27 Resistor Pin8-Pin5: 2K Short Circuit Pin7-Pin5:2K or Broken C150/C151: 110-10040-00 ( SMD Capacitors CER MT 10nF 50V J NPO 103 (0805)) Positioning Attribute Reference Value... -
Page 15: To Check Ac Charging Circuit
Service Manual PV18-2K/3K HM 3.4 To Check AC Charging Circuit 3.4.1 To Check Power Components Q20,Q21,Q22: 150-30032-00 ( Plug-in Transistor TSB/2SK3878 9A 900V N TUBE TO-3PN) Positioning Attribute Reference Value Failure Status Q20,Q21,Q22 Diode EC: 0.4V Short Circuit CE: OL or Broken Note: If there is one or more than one components broken, please replace them all. - Page 16 Service Manual PV18-2K/3K HM Positioning Attribute Reference Value Failure Status R259,R261,R263 Resistor 10 ohm Open Circuit other value R258,R260,R262 Resistor 100 ohm D56/D57/D58 Diode EC: 0.6V Short Circuit CE: OL or Broken Note: When test diodes, please remove R259, R261, R263, otherwise the test result is not right.
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Page 17: To Check Rectifier Circuit
Service Manual PV18-2K/3K HM 3.5 To Check Rectifier Circuit 3.5.1 Charging Circuit D21/D22/D23: 150-10061-00 (Plug-in Diode ON/MBR20200CT 20A 200V SCKY RAD BULK) REC1: 150-10066-00 ( Plug-in Diode HY/GBU8M 8A1000V ) ～ ～ - 15 -... -
Page 18: To Check Power Circuit
Service Manual PV18-2K/3K HM Positioning Attribute Reference Value Failure Status D21/D22/D23 Diode P to N: 0.44V ; N to P: OL Short Circuit REC1 Diode ～ to +: 0.47V ; + to ～: OL or Broken - to ～: 0.47; ～ to -: OL 3.6 To Check Power Circuit Q1: 150-30005-00 ( Plug-in Transistor MOSFET IR/IRF640NPBF18A 200V) R1: 130-00211-00 ( Plug-in Resistor 3WS 0.15 J Rack F4) - Page 19 Service Manual PV18-2K/3K HM CE6: 140-00044-00 (Electrolytic Capacitor 470uF35V M 5mm 105℃ 10*16mm Tape) If the capacitor appears burst, please replace it. R31: 100-17022-00 ( SMD Resistor CHIP TF 1/4W 2.2 F (1206) ) D1: 150-10009-00 (Plug-in Diode PAJIT/UF204 2A 400V ULTRAFAST AXI) ZD4: 120-20072-00 ( SMD Zen-er Diode PAN JIT 1SMA4745 16V 1W SMD ) U11: 120-10037-00 (IC ON/MC78M05CDTG DPAK-3 SMD) ZD12...
- Page 20 Service Manual PV18-2K/3K HM R99: 100-30022-00 ( SMD Resistor CHIP TF 1W 2.2 F (0207) ) D34: 120-20048-00 (SMD Diode ON/MURA120T3 1A 200V 403D SMD) Positioning Attribute Reference Value Failure Status Diode SD: 0.5V ; DS: OL Short Circuit Diode + to -: 0.47V ;...
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Page 21: To Check Mosfets For Reversed Protection On Dc Terminal
Service Manual PV18-2K/3K HM 3.7 To Check MOSFETS for Reversed Protection on DC Terminal Please open the cover and measure as follows. PV - BAT - Positioning Attribute Reference Value Failure Status PV - to BAT - Resistor >10K Short Circuit If in Short Circuit, Please replace MOSFET in Main Board. -
Page 22: To Check Ntc Circuit
Service Manual PV18-2K/3K HM 3.8 To Check NTC Circuit On Main Board, there are three NTC, one is in DC-DC Boost Heat Sink, one is under boost transformer and one is in inverting heat sink. When 02 fault code appears, it requires to check this step, please kindly note. 3.8.1 NTC in position of HS3 plugs in position of SW1 on main board. -
Page 23: Ntc In Hs4
Service Manual PV18-2K/3K HM Positioning Attribute Reference Value Failure Status NTC4 Resistor 5.7K ohm Short Circuit or Open Circuit 3.8.3 NTC in HS4 NTC_HS4: 130-20005-00 (Thermistor NTC 15K 2.5mA KW) NTC4 NTC4 - 21 -... -
Page 24: To Check Fan Driver Circuit
Service Manual PV18-2K/3K HM Positioning Attribute Reference Value Failure Status NTC_HS4 Resistor 5.5K ohm Short Circuit or other value If it is not possible to check functioning, please make NTC short-circuit and test the inverter again; if the fault disappears, it means the NTC is wrong. 3.9 To Check Fan Drive Circuit CN10 - 22 -... -
Page 25: Other Common Faulty Cases
Service Manual PV18-2K/3K HM Positioning Attribute Reference Value Failure Status R319/R329 100K ohm Short Circuit R321/R325/R326/R331 Resistor 10K ohm Other Value R320/R330 100 ohm D62/D65 Diode + to -:0.6V ; - to +: OL Short Circuit Burst Q34/Q35 SD: 0.5V ; DS: OL 4. -
Page 26: Dust-Covered Control Board
Service Manual PV18-2K/3K HM 4.3 Dust-covered Control Board 5. Assembling Guidance 5.1 Unfix Upper Cover 5.1.1 Unscrew four screws of the cover as following 5.1.2 Pluck LCD disconnection cable and take the cover - 24 -... - Page 27 Service Manual PV18-2K/3K HM 5.2 Unfix Power Board 5.2.1 To take the Air-duct Paper To take five plastic nails in heat sink and take out the air-duct paper 5.2.2 To pluck AC input and output cable and fan connection cable - 25 -...
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Page 28: Test Guidance After Repairing
Service Manual PV18-2K/3K HM 5.2.3 To Remove PV Connection Cable 5.2.4 To Remove the two screws on the side and take out the middle clapboard 5.2.5 Unscrew the two screws in control board and take the control board out. - 26 -... - Page 29 Service Manual PV18-2K/3K HM 5.2.6 Unscrew the eleven screws in main boards and take main board out. 5.3 Assembling the Inverter When Assemble the unit, please take opposite order of dissembling. 6. Test after Repairing 6.1 Before test, please connect to battery bank. - 27 -...
- Page 30 Service Manual PV18-2K/3K HM Afterwards, please Turn ON the unit. 6.2 To connect with AC Grid for testing - 28 -...
- Page 31 Service Manual PV18-2K/3K HM 6.3 To connect PV for testing - 29 -...
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