Hitachi WJ-0001S User Manual

Wj200 series solar water pump inverter system
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Pursuing the Ideal Compact Inverter
Pursuing the Ideal Compact Inverter
Series
Designed for excellent performance and user friendliness
Hitachi Solar Water Pump
Inverter System

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  Summary of Contents for Hitachi WJ-0001S

  • Page 1 Pursuing the Ideal Compact Inverter Pursuing the Ideal Compact Inverter Series Designed for excellent performance and user friendliness Hitachi Solar Water Pump Inverter System...
  • Page 2 Hitachi Solar Water Pump Inverter System KHKSCO GROUP...
  • Page 3 Objective of this Manual: The objective of this manual is to educate the user for proper installation and for putting the system into use. Scope Statement: The scope of this manual covers only installation, commissioning and general operations of the Solar Water Pump Inverter How-ever, some information on primary maintenance can be found in this manual.
  • Page 4: Table Of Contents

    Operation Manual Table of Contents: Chapter Page About the System Overview Solar Power and Irrigation Safety Definitions And Symbols General Warnings and Cautions UL Cautions, Warnings And Instructions Installation Preparation & Requirements Terminal Screw and Wire size Fuse Size Mounting Location Electrical Wiring Connection to Solar Water Pump System...
  • Page 5: About The System Overview Solar Power And Irrigation

    About the System In this chapter… Page About the System Over View Solar Power and Irrigation...
  • Page 6 For the purpose of this manual and the product the following symbols are used. Overview: The system operates on power generated using solar PV (photovoltaic) system. The photovoltaic array converts the solar energy into electricity, which is used for running the motor pump set.
  • Page 7: Safety

    Safety In this chapter… Page Introduction Definition and Symbol General warning and Cautions UL Cautions, Warning and Instructions...
  • Page 8: Definitions And Symbols

     CAUTION: Proper grounds, disconnecting devices and other safety devices and their location are the responsibility of the user and are not provided by Hitachi Industrial Equipment Systems Co., Ltd.  HIGH VOLTAGE: Dangerous voltage exists until power light is OFF. Wait at least...
  • Page 9  WARNING: This equipment has high leakage current and must be permanently (fixed) hard-wire to earth ground via two independent cables.  WARNING: Rotating shafts and above-ground electrical potentials can be hazardous. Therefore, it is strongly recommended that all electrical work conform to the National Electrical Codes and local regulations.
  • Page 10: General Warnings And Cautions

     General Warnings and Cautions  WARNING: Never modify the unit. Otherwise, there is a danger of electric shock and/or injury.  CAUTION: Withstand voltage test and insulation resistance tests (HIPOT) are executed before the units are shipped, so there is no need to conduct these tests before operation. ...
  • Page 11: Installation Preparation & Requirements

    Installation Preparation And Requirements In this chapter… Page Installation Preparation Mounting Location Electrical Wiring...
  • Page 12: Terminal Screw And Wire Size

     Installation Preparation Terminal Screw and Wire Size Inverter Model Screw Size Required Wire Range Torque (N-m) WJ-0001S M3.5 AWG16 (1.3mm2) WJ-0002S AWG14 WJ- 007S (2.1mm2) WJ-0015S AWG12 (3.3mm2) WJ-0022S AWG10 (5.3mm2) WJ-0004H AWG16 (1.3mm2) WJ-0007H WJ-0015H WJ-0022H AWG14 (2.1mm2)
  • Page 13: Fuse Size

    600 Vac with the current ratings as shown in the table below Model No. Fuse Inverse Time Type E CMC Circuit Breaker Type Rating(Maximum A) Rating (Maximum WJ-0001S Class 10 A, AIC 200 kA MMS-32H, 240V,40A WJ-0002S Class 10 A, AIC 200 kA WJ-0004S Class...
  • Page 14: Mounting Location

    Mounting location  Hardware installation Study the following caution messages associated with mounting the inverter. This is the time when mistakes are most likely to occur that will result in expensive rework, equipment damage, or personal injury. CAUTION: Be sure to install the unit on flame-resistant material such as steel plate. Otherwise, there is the danger of fire.
  • Page 15: Electrical Wiring

    Ensure Adequate Ventilation To summarize the caution messages – you will need to find a solid, non-flammable, vertical surface that is in a relatively clean and dry environment. In order to ensure enough room for air circulation around the inverter to aid in cooling, it is recommended to maintain the specified clearance and the inverter specified in the below diagram CAUTION: Be sure to maintain the specified clearance area around the inverter and to provide adequate ventilation.
  • Page 16 Single-phase 200V 0.1 to 0.4kW Three-phase 200V 0.1 to 0.75kW...
  • Page 19 Solar Water System Wiring details...
  • Page 20: Connection To Solar Water Pump System

     Connection to Solar Water Pump System DC PV Power AC Grid Power Hitachi Solar Water Pump Inverter Inverter Input Power AC & DC Both All Type Induction motor pump and PMAC motor Pump...
  • Page 21 Power Wiring For Solar Power in Solar Water Pump Inverter ( DC Input ) SOLAR PV MODULE DC POWER Hitachi Solar Water Pump Inverter DC Power Water Submersible Pump AC and PMAC Motor...
  • Page 22 Power Wiring For Solar Power Or Grid Power in Solar Water Pump Inverter AC Or DC Input AC Grid Power SOLAR PV MODULE DC Hitachi Solar Water Pump POWER Inverter Option AC / DC Power Change Over Switch, AC MCB,...
  • Page 23 Power Wiring For Solar Power and Grid Power in Solar Water Pump Inverter AC & DC Input AC Grid Power SOLAR PV MODULE DC Hitachi Solar Water Pump POWER Inverter Switch, AC MCB, DC Fuses Fuses And Diodes For Reverse Polarity...
  • Page 24  Control Wiring for Solar Water Pump Inverter:  For Rating 0.75KW to 15KW ( WJ200 )  For Rating above 15Kw ( SJ700 )  For Rating above 15Kw ( SJ700D ) Note: 1. For Rating 0.75kw to 15Kw, Make switch between terminal L and 1 for giving Start command to pump and for above 15kw, It is require to put start switch between P24 and FW terminal of Control board.
  • Page 25: Key And Indicator Legend

    Using the Front Panel Keypad  Inverter Keypad Description Key and Indicator Legend Items Contents (1) POWER Turns ON (Green) while the inverter is powered up. (2) ALARM Turns ON (Red) when the inverter trips.  Turns ON (Green) when the display shows changeable (3) Program parameter.
  • Page 26  SJ700 series Inverter Keypad description Key and Indicator Legend Name Function Name Function POWER lamp Lights when the control circuit power is on. ALARM lamp Lights to indicate that the inverter has tripped. RUN (operation) lamp Lights to indicate that the inverter is operating. Lights when the monitor shows a value set for a function.
  • Page 27: Operating Principle And Hardware

    Operating Principle And Hardware...
  • Page 28  Operating Principal and Hardware:  Solar Water Pump Inverter :  WJ200 & SJ700 Series of Hitachi Inverter is low voltage range AC drive and it available for 0.4Kw to 400Kw Motor rating which is design for drawing maximum power from PV module (Photovoltaic Cell).
  • Page 29: Mppt Overview

     MPPT overview  The Hitachi solar inverter uses maximum power pint tracking control software to operate solar panel (PV) at maximum power generation level.  Hitachi solar inverter internal MPPT algorithm is used to derive maximum power form PV cell at any instant and it is happen by changing output voltage and current in PV cell until maximum power is obtained.
  • Page 30 System Start-up...
  • Page 31  Parameter setting  WJ200 series Inverter parameter setting for solar water pump inverter  There are six buttons available for setting parameters.  Run button : use for start motor form operator panel/ keypad  Stop/Reset button: use for stop motor form operator panel / keypad and also to reset alarm ...
  • Page 32  WJ200 series Inverter parameter setting for solar water pump inverter  After giving power to inverter, It show 0000 value of d001 parameter (output motor Hz)  Make b049 = 01 for making inverter in Variable torque mode (Specially pump application) ...
  • Page 33  SJ700 series Inverter parameter setting for solar water pump inverter  After giving power to inverter, It show 0000 value of d001 parameter (output motor Hz)  Note : Make B037 = 00  Check A017 = 01 For enabling MPPT algorithm, 00 means stop, 01 means for terminal enabling.
  • Page 34  SJ700D series Inverter parameter setting for solar water pump inverter  After giving power to inverter, It show 0000 value of d001 parameter (output motor Hz)  Note : Make B037 = 00  Check A017 = 02 For enabling MPPT algorithm, 00 means stop, 0 2 means for terminal enabling.
  • Page 35: Fault Codes

     Fault Codes  All fault come in parameters D081 to d086, means Hitachi drive can store last 6 fault history. Error Name Cause(s) Code Over-current event while at The inverter output was short-circuited, or the constant speed motor shaft is locked or has a heavy load. These conditions cause excessive current for the inverter, so the inverter output is turned OFF.
  • Page 36 motor upon during powerup tests. This feature protects the inverter, and does not protect humans. Input over-voltage The inverter tests for input over-voltage after the inverter has been in Stop Mode for 100 seconds. If an over-voltage condition exists, the inverter enters a fault state.
  • Page 37 output and display the error code shown on the right. (The inverter will trip according to the settings of "p45" and "P048".) Option error (duplicated If two or more devices having the same MAC ID MACID) are detected in the same network, the inverter will display the error code shown on the right.
  • Page 38: Motor Requirement

     Motor requirement  The all type induction and submersible motor can work under Hitachi solar inverter  200VAC Hitachi inverter can work for 0VAC to 240VAC motor  400VAC Hitachi inverter can work for 0 VDC to 460VAC motor ...
  • Page 39: Monitoring System Data

     Monitoring System Data “D” Group parameter is use for monitor inverter data  D001 = output Hz of inverter / Speed of motor in Hz  D002 = output current to motor  D102 = DC voltage level at DC bus inside inverter ...
  • Page 40: Maintenance And Inspection

    Maintenance and Inspection Daily and Yearly Inspection Chart Inspection Inspection Check for… Method Item Inspected Criteria Cycle Daily Year Ambient Extreme Thermometer, Ambient temperature between – environment temperatures & hygrometer humidity Humidity 90% or less non-condensing Major Abnormal noise Visual and aural Stable environment for Overall devices...
  • Page 41 Note 1: The life of a capacitor is affected by the ambient temperature. Note 2: Designed life of a cooling fan is.10 years. However, it is affected by the ambient temperature and other environmental conditions. Note 3: The inverter must be cleaned periodically. If dust accumulates on the fan and heat sink, it can cause overheating of the inverter.
  • Page 42 Network Communication...
  • Page 43: Modbus Network Communication

     Modbus Network Communication Introduction WJ200 Series inverters have built-in RS-485 serial communications, featuring the Modbus RTU protocol. The inverters can connect directly to existing factory networks or work with new networked applications, without any extra interface equipment. The specifications are in the following table.
  • Page 44 Inverter Parameter Setup – The inverter has several settings related to Modbus communications. The table below lists them together. The Required column indicates which parameters must be set properly to allow communications. You may need to refer to the host computer documentation in order to match some of its settings.
  • Page 45: Common Fault And Remedies

    NOTE: When you change any of the parameters above, the inverter power must be rebooted in order to activate new parameters. Instead of rebooting, turning ON/OFF of reset terminal works as same. For Modbus data Listing, Please refer detail manual come with inverter ...
  • Page 46 Application Notes FOR Best Vmpp value to set in A020 : D004 (VOC )/1.2 OR D004 (VOC )VOC/1.25 PV in Series PV in Parallel...
  • Page 47: Phase 400V Class

    Standard Specifications 1-phase 200V class Models WJ200- 001SF 002SF 004SF 007SF 015SF 022SF 0.55 0.75 Applicable motor size * 200V Rated capacity (kVA) 240V Rated input voltage (V) 1-phase: 200V-15% to 240V +10%, 50 / 60Hz ±5% Input 13.8 20.2 24.0 Rating Rated input current (A)
  • Page 48 General Specifications Item General Specifications Protective housing * IP20 Control method Sinusoidal Pulse Width Modulation (PWM) control Carrier frequency 2kHz to 15kHz (derating required depending on the model) Output frequency range * 0.1 to 400Hz Digital command: ±0.01% of the maximum frequency Frequency accuracy Analog command: ±0.2% of the maximum frequency (25 °...