Omron KP100G User manual

KP100G
Technical manual
Grid Connect Photovoltaic Inverter
Part number 1868180-8 A

KP100G
2
1.Introduction
Thank you for purchasing the KP100G. This Technical Manual contains essential information regarding functions, performance, and usage of the
KP100G. The KP100G is designed for use in Grid Connected Solar Systems. The installation must always be carried out by qualified personnel with
knowledge of electrical systems and according to national standards for electrical installations.
The software and the protective functions are not accessible and/or changeable to the user.
Please read this manual carefully and make sure that you understand it well to ensure that you are using the KP100G correctly. Keep this manual in a
safe location so that it is available for reference when required.
Make sure that you read the items in the following table, and follow the instructions therein.
Page For Users
For Installers and
Other Specialists
1 Introduction 2 YES YES
2 Model Name 9 YES YES
System Description 10 YES YES
MPP Trackers 11 YES YES
Disconnecting from the Grid (ENS) 11 YES YES
3
Conditions for Disconnecting from the Grid 12 YES YES
4 Parts Names 13 YES YES
Installation 15 YES
Mounting 15 YES
Package Contents 15 YES
Mounting Dimensions 16 YES
Mounting Procedure 17 YES
Install the Data Logger independently 21 YES
Wiring 22 YES
Plug Processing 22 YES
Connecting to the Grid 28 YES
Preliminary Confirmations 28 YES
Wiring the KP100G to the Solar Modules 29 YES
5
Completion Inspection 30 YES
The setting in the case of particular countries 31 YES
6 The setting in Italy (KP100G-OD-IT) 31 YES
7 Display 33 YES YES
System Monitoring 38 YES YES
Data Communications 38 YES YES
RS-485 Communications 38 YES YES
Data Logger 40 YES YES
RS-232C Communications 40 YES YES
8
LCD(Data Logger) Messages 41 YES YES
9 Technical Data 44 YES YES
Maintenance 45 YES YES
Additionally tighten the tightening cap 45 YES YES
10 Others 45 YES YES
11 Troubleshooting 45 YES YES
12 Meanings of Error Messages and Their Remedies 46 YES YES
13 Other Information 48 YES YES
14 Appendix 49 YES YES
15 After-sales service 54 YES YES
16 Contact address 54 YES YES
Please read and understand this manual before using the product. Please consult your dealer if you have any questions or
comments.

KP100G
3
Safety Precautions · Definition of Precautionary Information
The following notation is used in this manual to provide precautions required to ensure safe usage of the KP100G Gridconnect Photovoltaic Inverter
(hereafter called the KP100G). Always read and heed the information provided in all safety precautions.
WARNING
Indicates a potentially hazardous situation which, if not avoided, is likely to result in serious injury or
may result in death. Additionally there may be severe property damage.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury or in property damage. Property damage refers to damage that may extend to include the house,
furniture, and pets.
Meanings of Alert Symbols
Disassembly Prohibition
Indicates prohibitions when there is a possibility of injury, such as from electric shock, as the result of
disassembly.
High-temperature Caution
Indicates the possibility of injury by high temperature under specific conditions.
General Prohibition
Indicates non-specific general prohibitions.
General Instruction
Indicates non-specific general instructions for user actions.
Electric Shock Caution
Indicates the possibility of electric shock under specific conditions.
Ground Wire Connection
Used to instruct the user to always connect the ground wire when using a device equipped with a safety
ground terminal.
Disposing Caution
Used to instruct the user to follow the specified procedure when disposing the product.

KP100G
4
Important Safety Descriptions
Observe the following warnings and cautions when using the KP100G.
Important user information:
WARNING CAUTION
Injury due to electric shock, or fire, may possibly
occur. Do not open the front cover or
disassemble, modify, or repair.
Burn injury will occur. Do not touch the upper part
of the product cabinet during operation or
immediately after stopping operation.
Significant injury may possibly occur due to fire.
Do not use the product in a flammable gas
atmosphere (including flammable sprays such as
pesticides).
Fire will occur. Do not obstruct ventilation holes or
place any objects within 20 cm of the ventilation
holes.
Fire will occur. Do not install near highly
combustible items or heat sources (stoves,
heaters, boilers, etc.).
Injury due to electric shock or property damage due
to burning may occasionally occur. Do not remove the
MC connector, the AC output cover, RS-485
protection cover, and the RS-232C protection cover.
Do not unfasten of cable gland of AC output and RS-
485.
Significant property damage may occasionally
occur. Do not use the product at any country
other than the designated one.
Output power may be restricted due to ventilation
obstruction. Clean the ventilation holes on top and
bottom regularly.
Injury or electric shock will occur. Read the
manual and follow prior to using the product,
and follow the instructions carefully.
Electric shock or fire will occur. Have an installer
from the store where you purchased the product,
or an authorized service person, install, repair,
modify, add on, move, or reinstall the product.
Death may possibly result due to injury because
the PV module operates at a high voltage. Do not
remove the connector except for the instruction of
the manual.
Ask the store from which you purchased the
product or an authorized person to dispose of it
when it is no longer needed
Precautions for Correct Use
Do not stand on the product and Data Logger or place any objects on it.

KP100G
5
Important installer information:
WARNING CAUTION
Injury due to electric shock, or fire, may possibly
occur. Do not open the front cover or disassemble,
modify, or repair.
Burn injury will occur. Do not touch the upper part
of the product cabinet during operation or
immediately after stopping operation.
Functional impairment may possibly occur due to
the destruction or damage of internal components
caused by condensation. Do not install in places
subject to high humidity, steam, or high
temperatures.
Fire will occur. Do not obstruct ventilation holes or
place any objects within 20 cm of the ventilation
holes.
Significant injury may possibly occur due to fire.
Do not use the product in a flammable gas
atmosphere (including flammable sprays such as
pesticides).
Damage from burning will occur. Turn OFF the AC
breaker before removing the MC connector. Do not
connect or disconnect the MC connector while the
current is flowing.
Injury or functional impairment may possibly
occur due to electric shock or burns. Do not install
in places that are within the reach of children.
Injury may occasionally occur.
Be careful by two persons when for transporting
and placing in position.
Fire will occur. Do not install near highly
combustible items or heat sources (stoves, heaters,
boilers, etc.).
Confirm the polarity of the cable from the PV
module and the AC side to ensure correct
connection and avoid possible damages which are
not covered by warranty. This can be done with a
standard Multimeter.
Significant property damage may occasionally
occur. Do not use the product at any country other
than the designated one.
Injury will occur due to the product falling. Install
the product in a location that will be able to support
its weight (35 kg). The installation location must be
able to withstand the force of 185 N•m of torque at
each mounting screw.
Injury or electric shock will occur. Read the
manual and follow prior to installing or performing
maintenance on the product, and follow the
instructions carefully.
Injury will occur due to the product falling. Use the
installation parts and materials that are included
with the product.
Have the installation done by a person with
qualifications approved by the relevant local utility.
IP65 performance may not be provided, if you
don’t follow these instructions:
1. Tighten the cable glands of AC output and RS-
485.
Injury due to electric shock or property damage due
to burning may occasionally occur. Mount the
enclosed caps onto MC connector that is not used.
Mount the rubber bushing with no hole in RS-485
connector if RS-485 is not used. Tighten the screw of
RS-232C protection cover properly if RS-232C is
not used.
2. Use a wire with a cross-sectional area of 4 mm2
or AWG12 and a cable with diameter of 6 mm is
allowed for the AC connector. Use a wire with a
cross-sectional area of 10 mm2or AWG8 is a cable
with diameter of 7.5 to 15 mm allowed for GND
connector.
3. Tighten the screws of the AC output over and RS-
232C and RS-485 protection cover to the specified
torque (1.3 to 1.6 N•m). Or tighten the screws of RS-
232C connecter properly.
4. Some thinning of the cable may be caused due to
usage conditions, with the result that IP65
performance may not be provided. Perform
additional tightening of the tightening cap of AC
cover and communication cover regularly.
5. Tighten the tightening cap of communications
cover to the specified torque.
6. Use a wire with a cross-sectional area of 0.3 mm2
and a cable with diameter of 4 mm is allowed for
the communications plug.
7. Tightly tighten the screws of plug with Data
Logger.

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WARNING
Death may possibly result due to injury because the
PV module operates at a high voltage. Be extremely
careful when handling the MC connector.
Electric shock will occur. Doing AC wiring work
during Turn OFF the AC breaker before
connecting the MC connector.
Electric shock will occur. Do not touch the DC plug
or MC connector for at least 3 minutes after
turning OFF the AC breaker and disconnecting the
MC connector.
Electric shock will occur. Be sure to connect the
ground wire.

KP100G
7
Precautions for Safe Use
Be sure to observe these precautions to ensure safe use of the product.
(1) Do not install in locations subject to saltwater spray, such as on oceangoing vessels or near a seacoast.
(2) Do not install near equipment, such as a radio or TV, that is likely to be affected by electric waves, or near an antenna.
(3) Turn OFF the AC breaker before doing any wiring work.
(4) When installing outdoors, be sure to provide an awning or eave of some kind to prevent direct sunlight or rain from striking the Unit.
(5) Leave space of 20 cm minimum between the Unit and the ceiling or eave, 20 cm minimum between the Unit and the floor or ground,
and 20 cm minimum between the Unit and right or left wall.
(6) When installing multiple KP100G Inverters, leave a space of 20cm minimum to the side of each Inverter. Do not install multiple
Inverters vertically.
(7) Mount the Inverter in the specified direction.
(8)Functional impairment may possibly occur due to the destruction or damage of internal components caused by dropped the Data
Logger. Be extremely careful when handling the Data Logger by installing it.
(9) Use appropriate wire for the capacity of the solar modules. A standard wire with a cross-sectional area of 4 mm2or 12AWG is
allowed for the AC wires.
(10) Be sure to inspect the system before doing a trial operation.
(11) Use an AC breaker that matches either the B trip characteristics.
(12) Use appropriate breaker for the capacity of the solar modules.
(13) Use a 20 A trip breaker for the AC breaker.
(14) When connecting to an AC connector cover or MC connectors, make sure that there is no slackness.
(15) Do not connect solar cells that have an open-circuit voltage in excess of 800 VDC.
(16) Tighten the screws of the AC output terminal of L1,L2,L3,N to the specified torque (0.8 to 1.0 N•m).
Tighten the screws of the AC output terminal of G to the specified torque (2.0 to 2.5 N•m).
(17) Use the recommended contact, or an equivalent one, for wiring to the AC connection.
(18) When wiring to the AC connection, do not put two or more wires into one wire insertion opening.
(19) Omron KP100G PV Inverter shall be installed and used properly in a way to keep away from the following incidents
a) altered or repaired, maintained or overhauled except by OMRON or any person expressly authorized by OMRON, without prior
written consent of OMRON
b) use of parts or accessory other than OMRON specify
c) defect caused by circumstantial factors such as wiring or peripheral equipment to be connected
d) pro-longed mechanical stress; eg. Tiny but continuous vibration for a long period
(20) Omron KP100G PV inverter shall be installed and used properly in a way to prevent the following possible incidents;
a) Lightening surge; easier to penetrate into a PV inverter by conducting on lines between PV modules and PV inverters comparing to
other apparatus installed in the house like a washing machine and may result in a breakage of PV inverter
b) Surge noise (spike) caused by a nearby construction work; flow into a PV inverter and may result in a breakage
c) Grid instability caused by a nearby construction work; make voltage variation larger and cause a malfunction, it may result in a
claim to replace the product
d) Nearby plant (under a poor grid connection); make voltage and/ or frequency vary too largely to activate an error (message), as it
happens repeatedly the customer starts suspecting the quality or defect of the product and it may result in a claim to replace the
product
e) Home apparatus without grounding (eg. washing machine); make a noise to a PV inverter from time to time and it may result in a
breakage
f) Installation circumstances that cause internal relays of PV inverter to repeat switching on and off; it may result in a welded contact
before its life time. It should be a set up that is good at making a balance of startup and stop of PV modules.
g) Characteristics matching with PV modules (as a PV system); amorphous PV modules cause leakage current detector to be
erroneously activated when it is set up, in rain, or as time goes by, and shut down a PV inverter, and it may result in a claim to
replace the product.

KP100G
8
Precautions for Correct Use
(1) Observe the following precautions when installing and storing the product.
a) Protect the wiring by, for example, placing it inside wiring ducts if there is a possibility that it may be damaged by animals or other
factors.
b) Protect the product from falling snow, accumulated snow, or wind-blown snow by building a protective roof over it when installing
the product in a snowy region.
c) Provide sufficient safety measures, such as scaffolding, to prevent danger during installation work.
d) Store in a place where the temperature is within the range of −25 to 60°C (with no condensation or icing), and the humidity is 95 %
maximum.
e) Store in a place that is no more than 2,000 m above sea level.
(2) Do not use this product in the following places:
a) Places subject to intense temperature change.
b) Places subject to volatile, flammable, corrosive, or other toxic gas.
c) Places subject to vibration and large shocks.
d) Places subject to water vapor, oil vapor, or condensation.
e) Places where the main body may be immersed in water.
f) Places subject to electric fields, direct sunlight, poor ventilation(ex. Narrow places where the ventilation would be obstructed or the
ambient temperature conditions would be exceeded.), considerable dust, many small insects.
g) Places subject to temperature and humidity conditions outside of the following ranges.
·Temperature: −20 to 55°C
·Humidity: 4 to 100 %
h) Places more than 2,000 m above sea level.
i) Narrow places where the ventilation would be obstructed or the ambient temperature conditions would be exceeded.
(3) Omron KP100G PV Inverter shall be installed and used properly in a way to keep away from the following incidents
a) altered or repaired, maintained or overhauled except by OMRON or any person expressly authorized by OMRON, without prior
written consent of OMRON
b) use of parts or accessory other than OMRON specify
c) defect caused by circumstantial factors such as wiring or peripheral equipment to be connected
d) pro-longed mechanical stress; eg. Tiny but continuous vibration for a long period
(4) Omron KP100G PV inverter shall be installed and used properly in a way to prevent the following possible incidents;
a) Lightening surge; easier to penetrate into a PV inverter by conducting on lines between PV modules and PV inverters comparing to
other apparatus installed in the house like a washing machine and may result in a breakage of PV inverter
b) Surge noise (spike) caused by a nearby construction work; flow into a PV inverter and may result in a breakage
c) Grid instability caused by a nearby construction work; make voltage variation larger and cause a malfunction, it may result in a
claim to replace the product
d) Nearby plant (under a poor grid connection); make voltage and/ or frequency vary too largely to activate an error (message), as it
happens repeatedly the customer starts suspecting the quality or defect of the product and it may result in a claim to replace the
product
e) Home apparatus without grounding (eg. washing machine); make a noise to a PV inverter from time to time and it may result in a
breakage
f) Installation circumstances that cause internal relays of PV inverter to repeat switching on and off; it may result in a welded contact
before its life time. It should be a set up that is good at making a balance of startup and stop of PV modules.
g) Characteristics matching with PV modules (as a PV system); amorphous PV modules cause leakage current detector to be
erroneously activated when it is set up, in rain, or as time goes by, and shut down a PV inverter, and it may result in a claim to
replace the product.

KP100G
9
2.Model Name
The following KP100G models are available.
Table 2-1 Model Name
Model ENS Availability Country
KP100G-OD-DE With ENS Germany
KP100G-OD-ES Without ENS Spain
KP100G-OD-IT Without ENS Italy

KP100G
10
3. System Description
The KP100G converts DC power obtained from solar modules into the AC power that is used in homes and businesses, and enables interconnection
with the utility grid.
This makes it possible to purchase power from the utility during periods when the load is high, and to sell power to the utility during periods when the
load is low. (Please note that a contract must be concluded with the utility for this purchasing and selling transaction.) The system configuration of the
KP100G is shown in Fig, 3-1.
Fig, 3-1 System configuration of KP100G
MPP (Maximum Power Point) Trackers
Three pairs of positive and negative DC input channels are connected to three sets of MPP Trackers.
DC Bus
The three sets of MPP Trackers store DC power via the DC/DC boost converter to the DC bus
DC/AC Inverter
The DC bus is connected to the DC/AC inverter, which converts DC power to AC power
Main and Redundant Relays
The two relays, RLY1 and RLY2, control the connection of the inverter to grid via the main and redundant controllers.
Output Lines
Three output lines (L1, L2, and L3) represent the three-phase AC power transmission to grid.
Other Main Components
The EMI Filter, GFCI, System Power Supply, Riso, Interface, and Display are included.
EMI Filter
EMI Filter
System
Power
Main Controller Redundant
Controller
Interface
RS-485, RS-232C Display
GFCI
MPP Tracker 1
+
+
MPP Tracker 2
MPP Tracker 3
PV1+
PV1
-
PV2+
PV2
-
PV3+
PV3
-
DC/AC Inverter L1
L2
L3
N
PE
LV
VAC
VOU
ACI
BUS
_
V
Riso
DCI DCV
RLY1 RLY2
Vdc1, Vdc2, Vdc3
Idc1, Idc2, Idc3 BUS_V
Iac1, Iac2, Iac3
GFCI_V
Vac1, Vac2, Vac3
Vout1,Vout2,Vout3

KP100G
11
MPP Trackers
The output power of the PV array varies depending on the intensity of the incident light and the temperature of the modules. In order to use the unstable
output of solar modules efficiently, the KP100G searches for the operating voltage that will produce the maximum output while it converts the DC input
voltage.
The KP100G has three MPP trackers. The topology of the MPP Trackers is mainly a boost converter. Each boost converter steps up the DC input
voltage to a higher DC BUS voltage.
User can connect differently-aligned string as three MPP trackers operate independently as illustrated in Fig, 3-2. This construction achieves high power
generation and flexible sizing of PV string.
Fig, 3-2 Connection of differently-aligned string
Disconnecting from the Grid (ENS)
(Einrichtungen zur Netzueberwachung mit jeweils zugeordnetem Schaltorgen)
When the utility disconnects part of its grid for maintenance, repairs, etc., it is necessary to ensure that the personnel working there are not in danger of
being injured. For this purpose, a new safety concept was added to the VDEW regulations proposed by Berufsgenossenschaft fuer Feinmechanik und
Elektrotechnik (German Employee Association of Precision Mechanics and Electronics Engineering).
The KP100G-OD-DE is designed exclusively for grid-connected operation. It is equipped with a fully independent disconnection device to ensure safe
and complete breaking, and to prevent islanding operation, when the grid is disconnected.
This independent disconnection device is comprised of two ENS units connected in series for safety. Each of the ENS units checks the frequency,
voltage, in order to provide constant monitoring of the grid. A redundant circuit and auto-diagnosis when each system is started further improves the
reliability of the disconnection function.
Input specifications:
a) DC input voltage range: 200 to 800VDC
b) MPPT voltage range: 300 to 800VDC
Input limitations:
a) Maximum input open-circuit voltage: 800VDC
b) Maximum input current per Tracker: 13ADC
MPP tracker controls not to exceed 13ADC.
c) Maximum input power per Tracker: 5,500W
MPP tracker controls not to exceed 5500W.
PV1
PV2
PV3
+
-
+
-
+
-
+3
+2
+1
-3
-2
-1
DCP
DCV
DCP
DCV
DCP
DCV

KP100G
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Conditions for Disconnecting from the Grid
Grid Voltage
When the grid voltage varies from the ranges listed in Table 3-1, the KP100G disconnects from the grid.
Table 3-1 Conditions UV/OV of the KP100G
Model Country UV (AC Undervoltage) OV (AC Overvoltage)
KP100G-OD-ES Spain 196VAC 253 VAC
KP100G-OD-IT Italy 191 VAC 264 VAC
253 VAC within 10min (See Note)
KP100G-OD-DE Germany 196 VAC 264 VAC within 0.2sec (See Note)
Note: According to VDE0126-1-1 4.2.2, when grid voltage exceeds 115%UN, the KP100G must disconnect from grid within 0.2sec.
According to VDE0126-1-1 4.2.3, the KP100G monitor grid voltage in 10min interval, and when grid voltage exceeds
100%UN in 10min, the KP100G disconnect from grid.
Grid Frequency
When the grid frequency varies from the ranges listed in Table 3-2, the KP100G disconnects from the grid.
Table 3-2 Conditions UF/OF of the KP100G
Country Setting UF (Under frequency ) OF (Over frequency)
KP100G-OD-ES Spain 49.0 Hz 51.0 Hz
KP100G-OD-IT Italy 49.7 Hz 50.3 Hz
KP100G-OD-DE Germany 47.5 Hz 50.2 Hz
ENS standards require that each model be tested by a third-party verification institute, and that all ENS units be tested prior to shipping. To ensure
that switching devices (relays) operate properly, always do an operational check before starting up the KP100G. If the test results are negative, the
KP100G will repeat the self-diagnostics. If the problem remains, it will be necessary to have a specialist diagnose it. Malfunctions are indicated by the
LCD.

KP100G
13
4. Parts Names
Fig, 4-1 Parts names
(1) Air Cooling Fan: 3 force air cooling fans to dissipate heat produced by the inverter. When temperature reaches 50 °C, air cooling fans will switch
on automatically by inverter and three fans will start operating simultaneously. In the meantime, air cooling fans will dissipate heat from inside of
the inverter to outside or top to down direction.
Fig, 4-2 Cooling fans
(2) 3 pairs of DC-input terminals (MC-connectors): Each input pair consists of positive and negative terminals. Refer to Installation Section for set-
up information.
Fig, 4-3 DC-input terminals
3 Cooling Fans
Data Logger
RS-485
communication port
AC Output
RS-232C connector3 Fans
Heat sink
3-pairs of DC
input

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(3) AC Output and GND: Delivering AC to the Public Utility.
Fig, 4-4 AC output terminals
(4) RS-485 communication interface: Interface allows communication with computer via RS-485. The port is protected by a water-proof cover.
Fig, 4-5 RS-485 communication interface
(5) RS-232 communication interface: Interface allows communication with computer via RS-232C serial.
Fig, 4-6 RS-232 communication interface
(6) LCD (Data Logger): Device to display and record inverter operation status.
Fig, 4-7 Data Logger
AC output plug
GND plug
RS-485 Communication
Interface

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5.Installation
Installation Procedure
Use the following procedure to install the Unit.
Table 5-1 Installation Procedure
No. Item Procedure Reference Page
1 Checking package contents Check to make sure that all of the items listed on the reference
page are included in the package. 15
2 Mounting the base plate Use the enclosed mounting screws to mount the base plate to the
wall, according to the procedure described on the reference page. 19
3 Mounting the Unit
Mount the KP100G to the base plate, according to the procedure
described on the reference page. 20
4 Processing the plugs Follow the procedures on the reference pages to process the
communications plug and AC plug. 22
5 Wiring the Unit Wire the KP100G to the grid, and to the solar modules, as
described in Fig, 5-34 and Fig, 5-35 on the reference page. 28
6 Preliminary Confirmations
Execute the preliminary confirmation according to the procedure
described on the reference page. 28
7 Completion Inspection
Conduct the completion inspection according to the procedure
described on the reference pages. 30
Mounting
Package Contents
The following items are included in the KP100G package. Check that all of the items shown in the following are included in the package before you
start the installation.
KP100G, Mounting base plate, Technical Manual
Fig, 5-1 KP100G, Mounting base plate, Technical manual
Enclosed mounting screws
6 Mounting Screws 6 Snap Bushings 2 Safety-lock screws
Fig, 5-2 Enclosed mounting screws

KP100G
16
Rubber Bushing
For connection of AC cable For connection of RS-485 cable
Fig, 5-3 Rubber Bushing
Securing plate and screws for removable data logger
Securing plate screws
Fig, 5-4 Securing plate and screws
MC caps (-), MC caps (+)
Fig, 5-5 MC caps
Mounting Dimensions
Fig, 5-6 Mounting dimensions (Unit: mm)

KP100G
17
Mounting Procedure
zSafety Precautions
(1) Do not install the Unit on ocean-going vessels or in places near the seacoast that are subject to saltwater spray.
(2) When installing outdoors, be sure to provide an awning or eave of some kind to prevent direct sunlight or rain from
striking the Unit.
(3) Leave space of 20 cm minimum between the Unit and the ceiling or eave, 20 cm minimum between the Unit and the floor or ground,
and 20 cm minimum between the Unit and right or left wall.
Fig, 5-7 Mounting conditions 1
(4) When installing multiple Inverters, leave a space of 20 cm minimum to the side of the Inverter. Do not install multiple Inverters
vertically.
Incorrect
Fig, 5-8 Mounting conditions 2
(5) Mount the Inverter in the specified direction.
Mount Inverter straight Never mount tilted to front
Fig, 5-9 Mounting conditions 3
20 cm
20 cm 20 cm
20 cm
20 c
m

KP100G
18
(6) Omron KP100G PV Inverter shall be installed and used properly in a way to keep away from the following incidents;
a) altered or repaired, maintained or overhauled except by OMRON or any person expressly authorized by OMRON, without prior
written consent of OMRON
b) use of parts or accessory other than OMRON specify
c) defect caused by circumstantial factors such as wiring or peripheral equipment to be connected
d) pro-longed mechanical stress; eg. Tiny but continuous vibration for a long period
(7) Omron KP100G PV inverter shall be installed and used properly in a way to prevent the following possible incidents;
a) Lightening surge; easier to penetrate into a PV inverter by conducting on lines between PV modules and PV inverters comparing
to other apparatus installed in the house like a washing machine and may result in a breakage of PV inverter
b) Surge noise (spike) caused by a nearby construction work; flow into a PV inverter and may result in a breakage
c) Grid instability caused by a nearby construction work; make voltage variation larger and cause a malfunction, it may result in a
claim to replace the product
d) Nearby plant (under a poor grid connection); make voltage and/ or frequency vary too largely to activate an error (message), as it
happens repeatedly the customer starts suspecting the quality or defect of the product and it may result in a claim to replace the
product
e) Home apparatus without grounding (eg. washing machine); make a noise to a PV inverter from time to time and it may result in a
breakage.
f) Installation circumstances that cause internal relays of PV inverter to repeat switching on and off; it may result in a welded contact
before its life time. It should be a set up that is good at making a balance of startup and stop of PV modules.
g) Characteristics matching with PV modules (as a PV system); amorphous PV modules cause leakage current detector to be
erroneously activated when it is set up, in rain, or as time goes by, and shut down a PV inverter, and it may result in a claim to
replace the product.
(8) Choosing the location
During certain operation phases the KP100G PV inverter may develop a slight noise level, for this reason it should not be
installed in the place where a slight audible noise is not permitted.

KP100G
19
(1) Mark the positions of the 4 outer mounting holes onto the wall with the bracket as illustrated in Fig, 5-10.
To install the device to a narrow upright, mark the 4 central holes at the back of the bracket as illustrated in Fig, 5-11.
Fig, 5-10 Mounting holes
Fig, 5-11 Mounting holes to install the device to a narrow upright
Upper mounting holes
Lower mounting holes Mounting
base plate
Upper central
mounting holes
Lower central
mounting holes

KP100G
20
(2) Drill the 4 marked holes in the wall, and then drive in the 4 Snap Bushings. Now insert the screws, and tighten.
Outer Mounting Holes Central Mounting Holes
Fig, 5-12 Mounting the base plate
(3) Mount the PV-Inverter onto the base plate as illustrated:
Fig, 5-13 Mount the KP100G onto the base plate
(4) Insert the Safety Lock screws to fix the PV-Inverter in place.
Safety-lock screw
Safety-lock screw