Hitachi WJ-0001S User manual

Printed in Japan(H)SM-E265 1109
Designed for excellent performance and user friendliness
Pursuing the Ideal Compact Inverter
Series
Pursuing the Ideal Compact Inverter
Hitachi Solar Water Pump
Inverter System

Hitachi Solar Water Pump
Inverter System
KHKSCO GROUP

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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.

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Operation Manual
Table of Contents:
Chapter
Page
About the System
1
Overview
1-1
Solar Power and Irrigation
1-1
Safety
2
Definitions And Symbols
2-1
General Warnings and Cautions
2-2
UL Cautions, Warnings And Instructions
2-3
Installation Preparation & Requirements
3
Terminal Screw and Wire size
3-1
Fuse Size
3-2
Mounting Location
3-3
Electrical Wiring
3-4
Connection to Solar Water Pump
System
4
4
Power Wire For Solar Inverter
4-1
Control Wiring For Solar Inverter
2-8
2-9
Keypad Description
2-10
Key and Indicator Legend
2-11
Operating Principle And Hardware
5
Principle of Solar Water Pump Inverter
5-1
MPPT Over view
5-2
Motor Requirement
5-3
System Start-Up
6
Parameter Settings
6-1
Steps for setting Inverter for System
6-4
Fault Code
6-5
Monitoring System Data
6-6
PC Tools for Monitoring
6-9
Maintenance And Inspection
7
Modbus Network Communication
8
Introduction
8-1
Connecting Inverter to Modbus Network
8-2
Modbus Parameter Setting
8-3
Common Fault and Remedies
9
Contacts

About the System 1
In this chapter…
Page
About the System
Over View
1-1
Solar Power and Irrigation
1-1

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. The pumping system draws water from the open well, bore well,
stream, pond, canal etc.
The system requires a shadow-free area for installation of the Solar Panel.
Of all the ways solar electricity benefits the people on Earth, none makes as much
difference in the daily lives as pumping water. By providing water for irrigation or
potable water have obvious benefits for people in rural areas and especially for those
in developing nations. The proper choice is determined by application specific factors
like how much water is required and whether the water should be available at night
or just during high sun hours.
Solar Power and Irrigation:
Irrigation is best utilisation of Solar power
Usually area which require more water have high solar irradiation
During summer time when more water is require, there is more sun light
Water need not be available at night
Maintenance facilities are lacking, Solar pump run maintenance free.
Solar tracking can use.

Safety 2
In this chapter…
Page
Introduction
2-1
Definition and Symbol
2-3
General warning and Cautions
2-3
UL Cautions, Warning and Instructions

2-1 Safety Information
Definitions and Symbols
HAZARDOUS HIGH VOLTAGE: Motor control equipment and electronic
controllers are connected to hazardous line voltages. When servicing drives and
electronic controllers, there may be exposed components with housing or protrusions at
or above line potential. Extreme care should be taken to protect against shock. Stand on
an insulating pad and make it a habit to use only one hand when checking components.
Always work with another person in case an emergency occurs. Disconnect power before
checking controllers or performing maintenance. Be sure equipment is properly
grounded. Wear safety glasses whenever working on electronic controllers or rotating
machinery.
WARNING: This equipment should be installed, adjusted, and serviced by qualified
electrical maintenance personnel familiar with the construction and operation of the
equipment and the hazards involved. Failure to observe this precaution could result in
bodily injury.
WARNING: For equipment protection, install a ground leakage type breaker with a
fast response circuit capable of handling large currents. The ground fault protection
circuit is not designed to protect against personal injury.
WARNING: HAZARDOUS OF ELECTRICAL SHOCK. DISCONNECT INCOMING
POWER BEFORE WORKING ON THIS CONTROL.
WARNING: Wait at least five (5) minutes after turning OFF the input power supply
before performing maintenance or an inspection. Otherwise, there is the danger of
electric shock.
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
five (5) minutes after input power is disconnected before performing maintenance

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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. Installation, alignment and
maintenance should be performed only by qualified personnel.
CAUTION:

b) Any motor used must be of a suitable rating.
c) Motors may have hazardous moving path. In this event suitable protection must be
provided.
CAUTION: Hazardous (main) terminals for any interconnection (motor, contact
breaker, filter, etc.) must be inaccessible in the final installation.
CAUTION: This equipment should be installed in IP54 or equivalent enclosure.
CAUTION: Connection to field wiring terminals must be reliably fixed having
two independent means of mechanical support. Use a termination with cable support
(figure below), or strain relief, cable clamp, etc.

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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.
CAUTION: Do not attach or remove wiring or connectors when power is applied. Also, do not
check signals during operation.
CAUTION: Be sure to connect the grounding terminal to earth ground.
CAUTION: When inspecting the unit, be sure to wait five minutes after turning OFF the power
supply before opening the cover.
UL Cautions, Warnings and Instructions
Warnings and Cautions for Troubleshooting and Maintenance The warnings and instructions in
this section summarizes the procedures necessary to ensure an inverter installation complies with
delines.
-001L, -002L, -004L, -007L, -015S, -
022S, -004H, -007H, -015H, -022H and -030H)
WARNING: Use 75 -001S, -002S, -004S, -007S, -015L, -
022L, -037L, -055L, -075L, -110L, -150L, -040H, -055H, -075H, -110H and -150H) WARNING: Suitable
for use on a circuit capable of delivering not more than 100,000 rms Symmetrical Amperes, 240 or
480V maximum.
WARNING: When protected by CC, G, J, or R class Fuses, or when Protected By A Circuit
Breaker Having An Interrupting Rating Not Less Than 100,000 rms Symmetrical Amperes, 240 or 480
Volts Maximum.
WARNING: Install device in pollution degree 2 environment.

WARNING: Solid state motor overload protection is provided in each model
WARNING: Integral solid state short circuit protection does not provide branch circuit protection.
Branch circuit protection must be provided in accordance with the National Electric Code and any
additional local codes

Installation Preparation 3
And Requirements
In this chapter…
Page
Installation Preparation
3-1
Mounting Location
2-3
Electrical Wiring
2-3

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Installation Preparation
Terminal Screw and Wire Size
Inverter Model
Screw Size
Required
Torque (N-m)
Wire Range
WJ-0001S
M3.5
1.0
AWG16
(1.3mm2)
WJ-0002S
WJ- 007S
M4
1.4
AWG14
(2.1mm2)
WJ-0015S
M4
1.4
AWG12
(3.3mm2)
WJ-0022S
M4
1.4
AWG10
(5.3mm2)
WJ-0004H
WJ-0007H
WJ-0015H
M4
1.4
AWG16
(1.3mm2)
WJ-0022H
WJ-0030H
M4
1.4
AWG14
(2.1mm2)
WJ-0040H
M4
1.4
AWG12
(3.3mm2)
WJ-0055H
WJ-0075H
M5
3.0
AWG10
(5.3mm2)
WJ-0110H
WJ-0150H
M6
5.9 to 8.8
AWG6 (13mm2)

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Fuse Size
The unit shall be connected with a Listed Cartridge Nonrenewable fuse or Inverse
time circuit breaker, rated 600 Vac with the current ratings as shown in the table
below
Model No.
Fuse
Inverse Time
Circuit Breaker
Type E CMC
Type
Rating(Maximum A)
Rating (Maximum
A)
WJ-0001S
Class
J
10 A, AIC 200 kA
30A
MMS-32H,
240V,40A
WJ-0002S
Class
J
10 A, AIC 200 kA
WJ-0004S
Class
J
10 A, AIC 200 kA
WJ-0007S
Class
J
15 A, AIC 200 kA
WJ-0015S
Class
J
15 A, AIC 200 kA
WJ-0022S
Class
J
20 A, AIC 200 kA
WJ-0004H
Class
J
10 A, AIC 200 kA
20A
MMS-32H,
480V,40A or
MMS-63H,
480V,52A
WJ-0007H
Class
J
10 A, AIC 200 kA
WJ-0015H
Class
J
10 A, AIC 200 kA
WJ-0022H
Class
J
10 A, AIC 200 kA
WJ-0030H
Class
J
15 A, AIC 200 kA
WJ-0040H
Class
J
15 A, AIC 200 kA
WJ-0055H
Class
J
30 A, AIC 200 kA
40A
WJ-0075H
Class
J
30 A, AIC 200 kA
WJ-0110H
Class
J
50 A, AIC 200 kA
WJ-0150H
Class
J
50 A, AIC 200 kA

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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.
CAUTION: Be sure not to place any flammable materials near the inverter.
Otherwise, there is the danger of fire.
CAUTION: Be sure not to let the foreign matter enter vent openings in the inverter
housing, such as wire clippings, spatter from welding, metal shavings, dust, etc. Otherwise,
there is the danger of fire.
CAUTION: Be sure to install the inverter in a place that can bear the weight according
to the specifications in the text. Otherwise, it may fall and cause injury to personnel.
CAUTION: Be sure to install the unit on a perpendicular wall that is not subject to
vibration. Otherwise, it may fall and cause injury to personnel.
CAUTION: Be sure not to install or operate an inverter that is damaged or has
missing parts. Otherwise, it may cause injury to personnel.
CAUTION: Be sure to install the inverter in a well-ventilated room that does not have
direct exposure to sunlight, a tendency for high temperature, high humidity or dew
condensation, high levels of dust, corrosive gas, explosive gas, inflammable gas, grinding-
fluid mist, salt damage, etc. Otherwise, there is the danger of fire.
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. Otherwise, the inverter may overheat and cause equipment
damage or fire.

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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. Otherwise, the inverter may overheat and cause equipment
damage or fire.
Electrical Wiring
You will connect wiring to the input of the inverter. First, you must determine whether the
inverter model you have required three-phase power only, or single-phase power only. All
models have the same power connection terminals [R/L1], [S/L2], and [T/L3]. So you must
refer to the specifications label (on the side of the inverter) for the acceptable power
source types! For inverters that can accept single-phase power and are connected that
way, terminal [S/L2] will remain unconnected. Note the use of ring lug connectors for a
secure connection.

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Single-phase 200V 0.1 to 0.4kW
Three-phase 200V 0.1 to 0.75kW

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Solar Water System 4
Wiring details

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Connection to Solar Water Pump System
DC PV Power AC Grid Power
All Type Induction motor pump and PMAC motor Pump
Hitachi Solar
Water Pump
Inverter
Inverter
Input Power
AC & DC Both