Must PH1800 PLUS 4K Service Manual
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Must PH1800 PLUS 4K Service Manual

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PH1800 PLUS 4K/5K
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PH1800 PLUS 4K/5K
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  • Page 1 Service Manual PH1800 PLUS 4K/5K Inverter/Charger PH1800 PLUS 4K/5K Service Manual...

  • Page 2: Table Of Contents

    Service Manual PH1800 PLUS 4K/5K 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. Maintenance Step....................... 4 3.1 Maintenance......................4 3.1.1 To Check DC FUSE and Capacitance............4 3.1.2 DC/DC Boost Module..................5...

  • Page 3: General Information

    Service Manual PH1800 PLUS 4K/5K 1. General Information 1.1 Brief Introduction This manual is used as a tool of inspection and repairing guidance for PH18-4K/5K MPK (F), 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 PH1800 PLUS 4K/5K 1.3 Over review and Introduction of Inverter /charger Parts Solar Charge Controller Board LCD Display Main Board - 2 -...

  • Page 5: Fault And Troubleshooting

    Service Manual PH1800 PLUS 4K/5K 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: Maintenance Step

    Service Manual PH1800 PLUS 4K/5K 3. Steps to Repair 3.1 Battery Working Mode Test 3.1.1 To Check DC FUSE and Capacitance F3: 180-00045-00 (Fuse, 42*12*0.6mm, Purple Copper Plate with tin plated) Positioning Attribute Reference Value Failure Status Resistor 0 ohm open C8,C9,C12,C13: 140-00103-00 (Electrolytic Capacitor, AL 3300uF/63V 105℃...

  • Page 7: Dc/Dc Boost Module

    Service Manual PH1800 PLUS 4K/5K 3.1.2 DC/DC Boost Module DC/DC MOSFET: Q14/Q25/Q26/Q40, Q12/Q22/Q21/Q38, Q20/Q17/Q11/Q24, Q13/Q18/Q13/Q19 150-00052-00: MOSFET TI/CSD19505KCS 201A 80V N BULK TO-220 - 5 -...
  • Page 8 Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status All MOSFET, 16pcs Diode SD:0.44V Short-circuit DS:OL or Explosion Note 1: When you use multi-meter to measure the resistance of MOSFET, due to the capacitor in the circuit, it will cause the continuous wave of the value when you measure the DS and GD;...

  • Page 9: Divers

    Service Manual PH1800 PLUS 4K/5K 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. R53/R87/R92/R93, R42/R75/R78/R80, R70/R59/R41/R76, R81/R62/R52/R64 All the resistors are 100-10022-00 (RES CHIP TF1/4W 22F (1206))
  • Page 10 Service Manual PH1800 PLUS 4K/5K 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. Positioning Attribute Reference Value Failure Status All Resistors: Resistor 22 ohm...
  • Page 11 Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status Q46/Q48/Q41/Q43 Diode BE:0.6V Short-circuit or burnt BC:0.6V CE:1V Q15/Q16/Q47/Q49 Diode BE:0.6V Short-circuit or burnt BC:1.3V CE:0.2V Q51/Q52/Q54/Q56:120-20035-00(SMD Transistors UTC/2SD1624 2A 50V NPN SOT-89) Q50/Q53/Q55/Q57:120-20036-00 (SMD Transistors UTC/2SA1020 3A 50V PNP SOT-89)
  • Page 12 Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status Q51/Q52/Q54/Q56 Diode BE:0.6V Short Circuit or Burnt BC:0.6V CE:OL Q50/Q53/Q55/Q57 Diode BE:0.6V BC:OL CE:1V Q60/Q61:120-20071-00 (MOSFET UTC/UT3404 5.8A 30V NPN SOT-23 SMD) Positioning Attribute Reference Value Failure Status Q60/Q61 Diode SD:0.18V DS1.2V...

  • Page 13: To Check Bus Module

    Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status Resistor Pin11-Pin12:5.4M Short Circuit Pin13-Pin12:60K or Broken Pin14-Pin12: 5.4M Note: If you are not sure which component broken, we would like to suggest you to replace them all. 3.2 To Check BUS Module 3.2.1 Power Devices...

  • Page 14: Igbt Diver Circuit

    Service Manual PH1800 PLUS 4K/5K 3.2.2 IGBT Diver Circuit R96/R91/R101/R102:100-10022-00 (Resistor CHIP TF 1/4W 22 F (1206)) R94/R90/R97/R99:100-10000-00 (Resistor CHIP TF 1/4W 0 F (1206)) D33/D32/D34/D35:120-20001-00(Diode PANJIT/1N4148W 0.15A 75V SOD123) Positioning Attribute Reference Value Failure Status R96/R91/R101/R102 Resistor 22ohm Open Circuit...

  • Page 15: To Check Buck Circuit

    Service Manual PH1800 PLUS 4K/5K 3.3 To Check BUCK Circuit 3.3.1 Power Devices BUCK MOSFET and Diode: Q32/D13 Q32:150-00048-00 (IGBT IR/IRGP4750DPBF 50A 650V N BULK TO-247) D13:150-10115-00 (Plug-in Diode APT30DQ60BG 30A 600V TO-247 2P) Note: D13 is 150-10042-00 (Plug-in Diode FAIR/RHRP1560_NL 15A 600V)

  • Page 16: Divers

    Service Manual PH1800 PLUS 4K/5K 3.3.2 Divers R125:100-10047-00 (SMD Resistor CHIP TF 1/4W 47 F (1206)) R124:100-10010-00 (SMD Resistor CHIP TF 1/4W 10 F (1206)) D38: 120-20001-00 (SMD Resistor PANJIT/1N4148W 0.15A 75V SOD123) Positioning Attribute Reference Value Failure Status R125...

  • Page 17: To Check Invert Full Bridge

    Service Manual PH1800 PLUS 4K/5K 3.4 To Check Invert Full Bridge 3.4.1 To Inspect Power Components as below INV IGBT: QA1/QB2/QC1/QD2 QA1/QB2/QC1/QD2: 150-30082-00 (IGBT IR/IRGP4066D-EPBF 75A 600V TO-247) Positioning Attribute Reference Value Failure Status QA1/QB2/QC1/QD2 Diode EC:0.4V Short Circuit CE: OL or Burnt Mark 1: if one or more than one IGBT broken, all IGBT components should be replaced.
  • Page 18 Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status All Resistors Resistor 47 ohm Other value or Open Circuit D16/D5/D12/D6 Diode EC: 0.6V Short Circuit CE: OL or Burnt Mark: When testing the diodes, please remove the R139/R150/R150/R145, or the test result is not current.

  • Page 19: To Check Bus Soft Start Circuit

    Service Manual PH1800 PLUS 4K/5K 3.5 To Check BUS Soft Start Circuit 3.5.1 Plug-in Components D65:150-10012-00(Plug-in Transistor FAIR/RHRP8120 8A1200V TO-220) D73: 150-10089-00 (Plug-in Diode PAJ/UF202 2A 200V UFST AXI TAP) Q6: 150-00035-00 (Plug-in Transistor IR/IRF840 8A 500V N BULK TO-220) R251: 130-00225-00 ( Plug-in Resistor 2W 0.62 J Vertical F4 No-Sensing)
  • Page 20 Service Manual PH1800 PLUS 4K/5K Pin4 Pin2 TX2: 240-00144-00 (Transformer TX 15:200:15 FER EEL16 PH18) Positioning Attribute Reference Value Failure Status Diode + to -:0.44V; - to + :OL Diode + to -:0.47V; Short Circuit - to +:OL or Burnt Diode SD:0.5V ;...

  • Page 21: To Check The Ac Switch-On Power Supply Circuit

    Service Manual PH1800 PLUS 4K/5K 3.6 To Check the AC Switch-on Power Supply Circuit (Note: This part only used in 250-00285-xx) Q37:150-30008-00 (Plug-in Transistor TOSHIBA/2SK2608 3A 900V) C87:140-00002-00 ( Electrolytic Capacitor AL 33uF/450V M 7.5mm 13*32mm 105℃ TXC330M2WK32MC4 D17/D18/D20/D21:150-10079-00 (Diode PAJ/1N4007S-P 1A1000V RAD TAP0.6D) C87: If Capacitor explodes, please replace it.
  • Page 22 Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status Diode SD:0.5V; Short Circuit DS: OL or Burnt D17/D18/D20/D21 Diode + to -:0.47V; - to +: OL R233 Resistor 22 ohm Open Circuit or Other Value Resistor Pin7-Pin5:42K; Short Circuit...

  • Page 23: To Check The Battery Switch-On Power Supply Circuit

    Service Manual PH1800 PLUS 4K/5K 3.7 To Check the Battery Switch-on Power Supply Circuit Q36:150-30005-00 (MOSFET IR/IRF640NPBF18A 200V) D53: 150-10089-00 (Plug-in Diode PAJ/UF202 2A 200V UFST AXI TAP) R215: 130-00211-00 ( Plug-in Resistor 3WS 0.15 Vertical F4) D54: 150-10078-00 (Plug-in Diode ON/MUR460 4A600V UFSTTAP DO-201AD)
  • Page 24 Service Manual PH1800 PLUS 4K/5K R126/R217: 100-10010-00 (SMD Resistor CHIP TF 1/4W 10 F (1206)) U10: 160-00005-00 (Plug-in IC LINEAR ON/UC3845BNG) - 22 -...

  • Page 25: To Check The Mosfets For Reversed Protection On Dc Terminal

    Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status Diode SD:0.53V ; Short Circuit DS: OL or Burnt Diode + to -:0.52V ; - to +: OL R215 Resistor 0.15 ohm Open Circuit or other value Diode + to -:0.45V;...

  • Page 26: Ntc In Position Of Hs1 Plug-In Position Of Cn8 On Main Board

    Service Manual PH1800 PLUS 4K/5K Positioning Attribute Reference Value Failure Status PV – to BAT - Resistor >10K Short Circuit If it is in short circuit, it requires replacing the MOSFETS on main board. Q42/Q58/Q44/Q45: 150-00060-00 (MOSFET IRFB3006GPbF 270A 60V N TAP TO-220) 3.9 To Check NTC Circuit...
  • Page 27 Service Manual PH1800 PLUS 4K/5K NTC 3 NTC 3 R272: Positioning Attribute Reference Value Failure Status R272 Resistor 700-750ohm Short Circuit or other value NTC3 Resistor 15K ohm NTC3 CN8 Resistor 4-6K ohm If it is not possible to check functioning, please pull out NTC and test the inverter again;...

  • Page 28: Ntc1 Under Transformer

    Service Manual PH1800 PLUS 4K/5K 3.9.2 NTC 1 Under Transformer NTC1: 130-20031-00 (Thermistor NTC47K2.5mA) R267: 100-11200-00 (SMD Resistor CHIP TF 1/4W 2K F (1206)) R267 R267 NTC1 NTC1 Positioning Attribute Reference Value Failure Status R267 Resistor 2K ohm Short Circuit...
  • Page 29 Service Manual PH1800 PLUS 4K/5K NTC4 NTC4 R270: 100-10750-00 (SMD Resistor CHIP TF 1/4W 750 F (1206)) SMD Resistor CHIP TF 1/4W 750 F (1206) Positioning Attribute Reference Value Failure Status R270 Resistor 700-750ohm Short Circuit or other Value NTC4...

  • Page 30: To Check Fan Driver Circuit On Main Board

    Service Manual PH1800 PLUS 4K/5K 3.10 To Check Fan Driver Circuit on Main Board Positioning Attribute Reference Value Failure Status R122 1K ohm R119 10K ohm R127 2K ohm R126 2K ohm R115 Resistor 100 ohm Short Circuit R121 4K ohm...

  • Page 31: Input Cable Disconnection

    Service Manual PH1800 PLUS 4K/5K 4.2 Input Cable Disconnection 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 - 29 -...
  • Page 32 Service Manual PH1800 PLUS 4K/5K 5.1.2 Pluck LCD disconnection cable and take the cover 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 - 30 -...
  • Page 33 Service Manual PH1800 PLUS 4K/5K 5.2.2 To pluck AC input and output cable and fan connection cable - 31 -...
  • Page 34 Service Manual PH1800 PLUS 4K/5K 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.

  • Page 35: Test Guidance After Repairing

    Service Manual PH1800 PLUS 4K/5K 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.
  • Page 36 Service Manual PH1800 PLUS 4K/5K Afterwards, please Turn ON the unit. 6.2 To connect with AC Grid for testing - 34 -...
  • Page 37 Service Manual PH1800 PLUS 4K/5K 6.3 To connect PV for testing - 35 -...

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