Rayleigh Instruments RI-ENERGY 3.0D User manual

RI-ENERGYFLOW-MIDI Series
MIDI Inverters
3.0D | 3.6D | 4.0D | 4.6D
| 5.0D |6.0D
User Manual
Rayleigh Instruments Limited (Head Office)
RaytelHouse,CutlersRoad,SouthWoodhamFerrers,Chelmsford,EssexCM35WA.UK.
E: [email protected]
Rayleigh Instruments Limited SP. Z o.o. (European Office).
Ul. Aleje Jerozolimskie 214, Warsaw, Poland, 02-486.
E: [email protected]
www.Rayleigh.com www.Rayleigh.pl

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Contents
1. Introduction………………………………………………………………………………………………………….. 4
1.1 Product description…………………………………………………………………………………………….. 4
1.2Packing……………………………………………………………………………………………………………4
1.3 Optional Packing……………………………………………………………………………………………….. 5
2. Safety instructions………………………………………………………………………………………………….. 5
2.1 Applied designations…………………………………………………………………………………………… 6
2.2 Notice for use…………………………………………………………………………………………………… 6
2.3 Important Safety Information………………………………………………………………………………….. 7
2.4 System sizing…………………………………………………………………………………………………… 7
3. Overview…………………………………………………………………………………………………………….. 8
3.1 Front Panel Display…………………………………………………………………………………………….. 8
3.2 LED Status Indicator Light…………………………………………………………………………………….. 8
3.3 Keypad (Optional)……………………………………………………………………………………………… 8
3.4 LCD (Optional)……………………………………………………………………………………………...….. 9
4. Installation…………………………………………………………………………………………………………… 9
4.1 Select a Location for the Inverter………………………………………………………………………………9
4.2 Mounting the Inverter……………………………………………………………………………………….... 10
4.3 Electrical Connections……………………………………………………………………………………..…. 11
5. Start&Stop…………………………………………………………………………………………………….…….19
5.1 Start the Inverter………………………………………………………………………………………..………19
5.2 Stop the Inverter……………………………………………………………………………………..…………19
6. Operation………………………………………………………………………………………………..…………..19
6.1 Setup-Technicians Only…………………………………………………………………………..………….. 20
6.2 INQUIRE…………………………………………………………………………………………..…………… 21
6.3 Statistics………………………………………………………………………………………….……………. 22
7. Maintenance……………………………………………………………………………………….……………… 22
8. Troubleshooting………………………………………………………………………………….……………….. 22
9. Specifications………………………………………………………………………………….………………….. 24
10. Quality Assurance………………………………………………………………………….…………………… 25

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1. Introduction
1.1 Product description
This manual describes solar inverters:
RI-ENERGYFLOW-MIDI-3.0D /3.6D /4.0D /4.6D /5.0D /6.0D.
Figure 1.1 Front and side view
Figure 1.2 Bottom side view
Object
Description
DVC class
1
PV1, PV2
DVC C
2
AC OUTPUT
DVC C
3
DRM
DVC A
4
CT
DVC A
5
COM
DVC A
1.2 Packing
When you receive the inverter, ensure that all the parts listed below are included:

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Part
Description
Number
1
PV grid tie inverter
1
2
Wall/pole bracket
1
3
Locking screws
2
4
DC connector
2pairsfor RI-ENERGYFLOW-
MIDI
5
AC connector
1
6
Manual
1
7
OT terminal
1
8
Explpsion-proof screws
3
1.3 Optional Packing
Part
Description
Number
1
DRM connector
1
2
CT connector
1
3
WiFi/GPRS Stick
1
4
1xCT and com cable
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2. Safety instructions:
Please read the safety instructions in this manual. Throughout the manual it is assumed that the reader is
familiar with AC and DC installations and knows the rules and regulations for electrical equipment and for
connecting it to the utility AC grid. It is especially important to be familiar with the general safety rules for
working with electrical equipment.

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2.1 Applied designations
Throughout the manual important information is shown at different levels depending on the character of the
information, as shown here:
Safety information important for human safety. Violation of warnings may result in injury
to persons or death.
Danger of high voltage and electric shock!
Signals danger due to electrical shock and indicates the time (5 minutes) to allow after
the inverter has been turned off and disconnected to ensure safety in any installation
operation.
Danger of hot surface!
Product should not be disposed as normal household waste.
Conformity with the applicable requirements for products sold within Europe.
Conformity with the applicable requirements for products sold within Great Britain.
Information important for the protection of property. Violation of this type of information
may cause damage and loss of property.
RoHS
Useful additional information or “Tips and Tricks" on specific subjects.
ROHS Mark.
2.2 Notice for use
The inverter has been constructed according to the applicable safety and technical guidelines.
Use the inverter in installations that meet the following specifications ONLY:
1.Permanent installation is required.
2.The electrical installation must meet all the applicable regulations and standards.
3.The inverter must be installed according to the instructions stated in this manual.
4.The inverter must be installed according to the correct technical specifications.
5.To startup the inverter, the Grid Supply Main Switch (AC) must be switched on, before the solar panel's DC
isolator shall be switched on. To stop the inverter, the Grid Supply Main Switch (AC) must be switched off
before the solar panel's DC isolator shall be switched off.

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2.3 Important Safety Information
Read this before installing, operating or maintaining the inverter.
Before installation:
Check for damage to inverter and packaging. If you are in doubt, please contact your
supplier beforeinstalling the inverter.Check the voltages of the solar modulesand make
sure they are within the limits of the inverter specifications before connecting them to the
inverter.
Installation:
Only trained and authorized personnel familiar with local electrical codes may install the
inverter. For optimum safety, please follow the steps described in this manual. Keep in
mind that the inverter has two voltage carrying sides, the PV input and the AC grid.
Disconnecting the inverter:
Always disconnect the AC line first! Afterwards disconnect the PV lines. Note that the
inverter can still be charged with very high voltages at hazardous levels even when it is
disconnected from grid and solar modules. Wait at least 5 min. before proceeding, after
having disconnected from grid and PV panels.
Operating the inverter:
Before connecting the AC grid to the inverter, make sure that the installation cover is
mounted again. The inverter must not be open during operation.
Maintenance and modification:
Only authorized personnel are allowed to repair or modify the inverter. To ensure
optimum safety for user and environment, only the original spare parts available from
your supplier should be used.
Functional safety parameters:
Unauthorized changes of functional safety parameters may cause injury or accidents to
people or inverter. Additionally it will lead to the cancelling of all inverter operating
approval certificates.
2.4 System sizing
When dimensioning a photovoltaic system, it must be ensured that the open-circuit
voltage of the PV string never exceeds the maximum permissible input voltage. For
3.0D, 3.6D, 4.0D, 4.6D, 5.0D and 6.0D series inverters, the maximum input voltage
is 600V DC. Higher voltages may result in permanent damage to the inverter.
The selection of PV string output should be based on the optimum utilization of the invested capital compared
to the expected annual energy yield from the system. This optimization depends on local weather conditions
and should be considered in each individual case.
The inverter incorporates an input power limiting device, which automatically keeps the power at levels that are
safe for the inverter. The limitation depends mainly on internal and ambient temperatures. The limitation is
calculated continuously and always allows the maximum possible amount of energy to be produced.
Please use the tool supplied by Rayleigh Instruments when dimensioning a photovoltaic system.

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3. Overview
3.1 Front Panel Display
LCD display is Optional
Figure 3.1 Front Panel Display
3.2 LED Status Indicator Light
The LED status indicator can display red and green. When the indicator light is on, it indicates that there is
power. When the indicator light is red, it indicates the alarm state; when the indicator light is green, it indicates
the operation state.
Light
Status
Description
ON
Alarm or fault condition is
detected.
ON
The inverter is operating
properly.
Flashing
Grid Connected countdown
Table 3.1 Status Indicator Light
3.3 Keypad (Optional)
There are four keys in the front panel of the Inverter from left to right: ESC,UP, DOWN and ENTER keys. The
keypad is used for:
• Scrolling through the displayed options (the UP and DOWN keys);
• Access to modify the adjustable settings (the ESC and ENTER keys).

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3.4 LCD (Optional)
The four-line Liquid Crystal Display (LCD) is located on the front panel of the Inverter, which shows the following
information:
• Inverter operation status and data;
• Service messages for operator;
• Alarm messages and fault indications.
You can also get information via WiFi / GPRS.
4. Installation
4.1 Select a Location for the Inverter
To selects location for the inverter, the following criteria should be considered:
• Do not install in small closed spaces where air can not circulate freely. To avoid overheating, always make
sure the flow of air around the inverter is not blocked.
• Exposure to direct sunlight will increase the operational temperature of the inverter and may cause output
power limiting. Rayleigh Instruments recommends inverter installed to avoid direct sunlight or raining.
• To avoid overheating ambient air temperature must be considered when choosing the inverter installation
location. Rayleigh Instruments recommends using a sunshade to minimise direct sunlight when the ambient air
temperature around the unit exceeds 104°F/40°C.
Figure 4.1 Recommended Installation locations
• Install on a wall or strong structure capable of bearing the weight.
• Install vertically with a maximum incline of +/-5° . If the mounted inverter is tilted to an angle greater than
the maximum noted, heat dissipation can be inhibited, and may result in less than expected output power.
• When 1 or more inverters are installed in one location, a minimum 300mm clearance should be kept
between each inverter or other object. The bottom of the inverter should be 500mm clearance to the ground.
Figure 4.2 Inverter Mounting clearance
• Visibility of the LED status indicator lights and the LCD located at the front panel of the inverter should be
considered.

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• Adequate ventilation must be provided if the inverter is to be installed in a confined space.
Nothing should be stored on or placed against the inverter.
4.2 Mounting the Inverter
Dimensions of wall bracket:
Figure 4.3 Inverter wall mounting
Please see Figure 4.4 and Figure 4.5 for instructions on mounting the inverter.
The inverter shall be mounted vertically. The steps to mount the inverter are listed below:
1. According to figure 4.2, select the mounting height of the bracket and mark the mounting holes. For brick
walls, the position of the holes should be suitable for the expansion bolts.
Figure 4.4 Inverter wall mounting