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Troubleshooting
Related Manuals for INVT RM300
Summary of Contents for INVT RM300
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Page 2: Table Of Contents
RM300 Service Manual V1.0 Contents SAFETY INSTRUCTION ........................4 ..........................4 AFETY ESSAGE ..........................4 ARNING ABEL ........................... 4 AFETY NSTRUCTION & I ..........................5 NSTALL & O ..........................5 EBUG PERATE & R ......................5 AINTENANCE EPLACEMENT ..........................6... - Page 3 RM300 Service Manual V1.0 7.2 C ..................21 ONFIGURATION IN THE YPASS ODULE ， ....................22 7.3 T HE SIGNAL CONNECTION IN BYPASS 7.4 T ....................23 ROUBLE SHOOTING FOR BYPASS FANS 8 TROUBLE SHOOTING FOR POWER MODULE .................. 25 8.1 C...
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Page 4: Safety Instruction
RM300 Service Manual V1.0 Safety Instruction Safety Message Danger: Serious human injury or even death may be caused, if this requirement is ignored. Warning: Human injury or equipment damage may be caused, if this requirement is ignored. Attention: Equipment damage, loss of data or poor performance may be caused, if this requirement is ignored. -
Page 5: Move & Install
RM300 Service Manual V1.0 Move & Install Keep the equipment away from heat source or air outlets. In case of fire, use dry powder extinguisher only, any liquid Danger extinguisher can result in electric shock. Do not start the system if any damage or abnormal parts founded. -
Page 6: Battery Safety
RM300 Service Manual V1.0 Battery Safety All the battery maintenance and servicing procedures involving internal access need special tools or keys and should be carried out only by trained personnel. WHEN CONNECTED TOGETHER, THE BATTERY TERMINAL VOLTAGE WILL EXCEED 400Vdc AND IS POTENTIALLY LEATHAL. -
Page 7: Disposal
RM300 Service Manual V1.0 sure to wear a pair of protective glasses, rubber gloves and skirt when operating the battery. Otherwise, you may become blind if acid enters your eyes and your skin may be damaged by the acid. ... -
Page 8: Introduction To Ups Structure And Key Components
RM300 Service Manual V1.0 1. Introduction to UPS Structure and Key components 1.1 Structure The modular UPS consists of power unit, charger/discharger, STS, Bypass Maintenance Switch and external battery, as is shown in Figure 1-1. Power unit： It consists of parallel power modules. Each power module includes Rectifier and Inverter. -
Page 9: Structure Of The Cabinet
RM300 Service Manual V1.0 Figure 1.2 Topological diagram of the system 2 Structure of the Cabinet 2.1 Front of the Cabinet The front contains SPD(Optional), bypass Maintenance switch, LCD, battery cold, bypass& monitoring module, dry contact, power module, SNMP(Optional), Expansion dry contact card, LBS, RS485, RS232, as is shown in Figure 2.1. -
Page 10: Back Of The Cabinet
RM300 Service Manual V1.0 Figure 2.1 Front view 2.2 Back of the Cabinet It includes Input terminals, Output terminal, battery terminal, and power module connectors, as is shown in Figure 2.2 10 / 28... -
Page 11: Top View Of The Cabinet
RM300 Service Manual V1.0 Figure 2.2 Back view 2.3 Top view of the cabinet It includes the Input EMI and Battery cold board. 11 / 28... -
Page 12: Structure Of Power Module
RM300 Service Manual V1.0 Terminal connectors Input EMI Battery cold start board Figure 2.3 Top view 3 Structure of Power Module 3.1 Components The power module consists of inductance board，charger，power supply board， rectifier board，boost power board, inverter board, EMI board and control board. -
Page 13: Upper Layer
RM300 Service Manual V1.0 Charging board Charging Board Power Supply Rectifier Inductance Inverter Inductance Figure 3.1 Lower Layer of the power module 3.3 Upper Layer The upper layer of the power module contains input SCR board, rectifier board, inverter board, output board, control board and fan board, as is shown in the Figure... -
Page 14: Led Panel Of The Power Module
RM300 Service Manual V1.0 Output board Input SCR board Control board Inverter board Rectifier board Figure 3.2 3.4 LED panel of the power module The LED panel of the power module is shown in Figure 3.3. Figure 3.3 LED panel for power module 3.5 Connection inside the power module... -
Page 15: Power Cable
RM300 Service Manual V1.0 Fig 3.4 Connection inside the power module 4 Power Cable 4.1 The recommended cables Table 4.1 Cable selection Contents 150KVA 300KVA Main Input Current 260A 520A Main Input Cable section （mm²） Output Current 225A 450A 15 / 28... -
Page 16: Testing Of Rectifying Scr Module And Its Drive
RM300 Service Manual V1.0 Output Cable section （mm²） Bypass Input Current 225A 450A Bypass Input （Optional） Cable section （mm²） Battery Current 300A 600A Battery Input Cable section （mm²） Cable Section （mm²） Note The recommended cable section for power cables are only for situations described below：... -
Page 17: Drive Signal Of The Scr Pin A-K
RM300 Service Manual V1.0 measure the resistance of pin G-K as 1-2,5-6, 12-15, 9-10, 14-28,24-23, the normal value should be around 1MΩ. The pins of the SCR are defined in Figure 5.1. Figure 5.1 Pins definition the SCR module 5.1.2 Drive signal of the SCR pin A-K The normal drive signal of the pin A-K SCR is shown in Figure 5.2... -
Page 18: Drive Signal Of Rectifier Igbt Modules
RM300 Service Manual V1.0 drive board as from D1 to D12, the normal value of each diode should be around 0.8V, as is shown in Figure 5.3. Figure 5.3 Rectifier IGBT pin test 5.2.2 Drive signal of Rectifier IGBT modules Test the G-K pin of IGBT modules with multimeter, the normal wave should be as follows, as is shown in Figure 5.4. -
Page 19: Inverter Igbt
RM300 Service Manual V1.0 5.3 Inverter IGBT 5.3.1 Test of Inverter IGBT The definition and measurement are shown as Figure 5.5. Turn the multimeter to the Diode Channel，measure the status of diode (anode to cathode) as 17-15, 8-17, 6-8, 3-6, 5-17, 6-5 ,the normal value should be around 0.4V. -
Page 20: Igbt Drive Circuit
RM300 Service Manual V1.0 The drive signal wave is as following, as shown in Figure 5.6. 5.6 Drive signal wave 5.4 IGBT Drive Circuit 5.5 Drive Circuit for Rectifier IGBT Take the Rectifier IGBT of Phase A for example. Test the status of diode D3 and D8 (or the same position for Rectifier IGBT of Phase B and C ), the normal value should be 0.45-0.8V;... -
Page 21: Fuse And Relay
RM300 Service Manual V1.0 Rectifier IGBT of Phase B and C ). The schematic diagram is shown in Figure 5.9: Figure 5.9 5.7 Fuse and Relay 6 Introductions to S-Code Please refer to the document of S-code trouble shooting 7 Trouble shooting for Cabinet 7.1 Configuration in the Cabinet... -
Page 22: The Signal Connection In Bypass
RM300 Service Manual V1.0 number PCB_PS1203_PW3 Power supply board Supplying power for the control unit PCB_PS1203_MN1 Monitoring board For monitoring and bypass control unit PCB_PS1203_TF3 Dry contact board Dry contact function PCB_ 3320_CQ Bypass SCR drive Bypass SCR drive board 7.3 The signal connection in bypass，... -
Page 23: Trouble Shooting For Bypass Fans
RM300 Service Manual V1.0 7.4 Trouble shooting for bypass fans Bypass fan fault Cause ： 1）the abnormity of detect circuit 2）failure of bypass fans Method ： 1）Observe if the fans are running normal，if the fans are running in normal speed with warning of ‘Byp Fan Fail’ This should be the problem for abnormity of detect circuit . - Page 24 RM300 Service Manual V1.0 Cause ： The parallel cables are not well connected or disconnected Method: Connected the parallel cables or change to a normal one 24 / 28...
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Page 25: Trouble Shooting For Power Module
RM300 Service Manual V1.0 8 Trouble shooting for Power Module 8.1 Configuration of the power module Series PCB Name Description number Power Module LCD Power Module LCD Display information of the power module PCB_PS1203_DR1 Input SCR board Input SCR Rectifier board for battery and... - Page 26 RM300 Service Manual V1.0 1）Check the fuse 2）Check if the ambient temperature is too high, if so, improve the environment 3）Check the type of the load and contact with the manufacture 4）Check whether the input is OK Invert protected Cause：1）Inverter over-temperature 2）Failure of inverter IGBT...
- Page 27 RM300 Service Manual V1.0 cause： 1）Rectifier IGBT broken 2）Drive board of Rectifier IGBT broken or wrong displaying of input voltage Method： 1）Check if the rectifier IGBT is broken，change the IGBT, if broken 2）Change the IGBT drive board and adjust the input voltage Inversed input polarity Cause：...
- Page 28 RM300 Service Manual V1.0 Failure of battery test Cause： 1）Battery disconnected 2）Battery capacity less than 30% Method： 1）Connect the battery 2）Charge the battery Failure of battery Maintenance Cause： 1）The battery capacity is low 2）The cables are not well connected Method：...
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