Delta RPI M30A Specification sheet

RPI M30A/M50A
Operation and Installation Manual
Grid-tie Transfomerless Solar Inverter
The power behind competitiveness
www.deltaww.com
English 1
77
153
简体中文
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1. General Information
1.1. About this Manual
1.2. Product Description
1.3. Additional Information
2. Product Overview
2.1. Unpack the Inverter
2.2. Checking Unit and Accessories
2.3. Product Label
2.4. Exterior Objects
3. Installation
4. Wiring
4.1 Preparation Before Wiring (Models with Fuses)
4.2. Preparation Before Wiring (Models without Fuse)
4.3. AC Grid Connection: 3-Phase+PE or 3-Phase+N+PE
4.3.1. Required Protective Devices and Cable Cross-sections
4.4. DC Connection from PV Array
4.5. Communication Module Connections
4.5.1. RS-485 Connection
4.5.2. EPO Functions & Digital Input
4.5.3. Dry Contact Connection
5. Turn On PV Inverter
5.1. LCD Flow Chart
5.2. First startup
5.2.1. Home Page
5.2.2. Power Meter
5.2.3. Energy Log
5.2.4. Event Log
5.2.5. Inverter Information
5.2.6. General Settings
5.2.7. Install Settings
5.2.7.1. Inverter ID
5.2.7.2. Insulation
5.2.7.3. Country
5.2.7.4. Grid Settings
5.2.7.5. Dry Contact
5.2.7.6. EPO
5.2.7.7. AC connection
5.2.7.8. Max. Power
5.2.8. Active/Reactive power
5.2.8.1. Power Limit
5.2.8.2. Power vs. Frequency
5.2.8.3. P(V)
5.2.8.4. Constant cosphi
5.2.8.5. Cosphi (P)
5.2.8.6. Constant Q
5.2.8.7. Q(V)
5.2.9. FRT (Fault ride through)
6.Maintenance
6.1. Replace Surge Protection Device (SPD)
6.2. Replace Internal String Fuse
6.3. Clean Fan
6.4. Replace Fan
6.5. Clean Air Inlets
7.Error message and Trouble Shooting
8.De-Commissioning
9.Technical Data
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Contents
03

Safety Instructions
This manual uses the following instructions for conveying important safety related information.
CAUTION !
Machine and equipment damage may occur if this hazardous situation is not
avoided.
WARNING !
Death and serious injury may occur if this hazardous situation is not
avoided.
Repair work on the device should ONLY be carried out by the manufacturer.
No user serviceable parts inside.
In Australia, installation and maintenance work shall be conducted by qualified
electrician and shall comply with Australian Regulations.
DANGER !
To avoid risk of electrical shock, do not open the solar inverter. Death and
serious injury will occur if this hazardous situation is not avoided.
WARNING ! BURN HAZARD
The unit may reach high temperatures and the device surface can
become hot. Sufficient cooling time is necessary for optimal yield.
04

1.General Information
1.1. About this Manual
This manual is to provide the explanation and procedures for installing,
operating, maintaining, and troubleshooting of RPI M30A/ RPI M50A solar
inverters.
1.2. Product Description
This device is a 3-phase grid-tied solar inverter which does not support off-
grid functionality.
The operation of solar inverter is shown as the Figure 1-1.Inverters convert
the DC input power supplied from the PV Array into 3-phase AC output power
to Grid.
Figure 1-1 Solar system operation illustration
1.3. Additional Information
For more detailed or other related product information, please visit
http://www.deltaww.com
PV Array Electrical GridSolar Inverter
3PH AC Distribution
box
Surge arrestor
AC breaker
3 phase, N, PE
05
General Information

Figure 2-1 Unpack the inverter
The unpacking procedure of RPI M30A/ M50A is shown as Figure 2-1.
2.Product Overview
2.1 Unpack the Inverter
2.2 Checking Unit and Accessories
Unforeseeable events causing damage or movement may occur during
shipment. Please check following items upon receiving your inverter.
• Check the damage on the packaging.
• Check if all the accessories are in the package.
The standard accessories are shown in following tables and figures:
For RPI M30A, Please refer to Figure 2-2 and Table 2-1.
For RPI M50A, Please refer to Figure 2-3 and Table 2-2.
• Check the model number and the serial number on the packaging is identical
with the model number and serial number on the unit itself.
If there is any visible damage to the inverter/accesories or any damage to
the packaging, please contact your inverter supplier.
06
Product Overview

Figure 2-2 Packing list of M30A
RPI M30A
Object Qty Description
1 PV Inverter 1 pcs
1 pcs
1 pcs
1 pcs
RPI series solar inverter
2 User Manual
The Instruction to provide the information of safety,
Installation, specification, etc.
3 AC Plug
Mounting Bracket
Connector for AC connection
Wall mounting bracket to mount the solar inverter
on the wall.
4
5
DC Plug 6 sets Connector for DC connection
Table 2-1 Packing list of M30A
※These products does not provide grounding fuse. Users can choose 1000V/
1A Midget size grounding fuse if needed.
①
②
⑤
④
③
07
Product Overview

Figure 2-3 Packing list of M50A
RPI M50A
Object Qty Description
1 PV Inverter 1 pcs
1 pcs
1 pcs
1 pcs
RPI series solar inverter
6 Holder 1 pcs Holder for Grounding Fuse
7 Bus-bar 2 pcs Bus-bar for DC+ or DC- Parallel Connection.
2 User Manual
The Instruction to provide the information of safety,
Installation, specification, etc.
3 AC Plug
Mounting Bracket
Connector for AC connection
Wall mounting bracket to mount the solar inverter
on the wall.
4
5
DC Plug 10 sets Connector for DC connection
Table 2-2 Packing list of M50A
※These products does not provide grounding fuse. Users can choose 1000V/
1A Midget size grounding fuse if needed.
①
②
⑤⑥ ⑦
④③
08
Product Overview

2.3 Product Label
RPI M50A RPI M30A
Please refer to Figure 2-4 for the location of product label. You can identify
the model number and the specifications by the information on the label.
RPI M30A and M50A series have 3 models. The differences between them
are having surge protection devices (SPD) and internal strings fuse or not.
For more detail information, please see the table 2-3.
Figure 2-4 Product label
Model Name Part Number
RPI303FA0E1100
RPI503FA0E0000
RPI503FA0E0200
SPD
X
V
X
Internal Fuse
X
V
V
RPI M30A_121
RPI M50A_120
RPI M50A_122
Table 2-3 Model name
09
Product Overview

2.4 Exterior Objects
Display
Air inlet
Label
RPI M50A
Display
Air inlet
Label
RPI M30A
Input / Output
Interfaces
Input / Output
Interfaces
The Inverter’s exterior objects are shown in Figure 2-5. The detailed input/
output interfaces illustration is shown in Figure 2-6. Different models have
different number of DC input strings.
Figure 2-5 Inverter’s exterior objects
10
Product Overview

Figure 2-6 Input / output interface
AC Connector
380/400Vac, 3Ph
Fan *5Manual
Switch
String1
String2
String3
Communication
-RS-485 *2
-EPO *1
-Dry Contact *2
-Digital Input*6
DC1 DC2
String8
String9
String10
--
String4
String5
--
String6
String7
RPI M50A
DC1 DC2
String1
String2
String3 String4
String5
String6
AC Connector
380/400Vac, 3Ph
Fan *3
Manual
Switch
Communication
-RS-485 *2
-EPO *1
-Dry Contact *2
-Digital Input*6
RPI M30A
11
Product Overview

CAUTION !
The unit should not be installed in direct sunlight.
WARNING !
• Do not install the unit near or on flammable surfaces.
• Please mount the unit tightly on a solid/smooth surface.
3.Installation
This unit is designed to be wall-mounted. Please ensure the installation is
perpendicular to the floor and the AC plug at the bottom. Do not install the
device on a slanting wall.
To mount the inverter on the wall, please follow the procedure below:
1.Screw the mounting bracket on the wall with 12 M6 Phillips head screws.
Please refert to Figure 3-3.
2.Attach the inverter to the mounting bracket.
3.Fix the inverter with 2 M6 Phillips head screws.
Please refer to Figure 3-4.
12
Installation

Figure 3-1 Mounting bracket dimension
Figure 3-2 Recommended installation
90
Not
Recommended
Not
Recommended
Keep >30 cm from floor and
water if installed this way
13
Installation

M6 Screw *6
Wall
M6 Screw *6
Figure 3-3 Screw the mounting bracket
Figure 3-4 Attach to the bracket and fasten with screws
14
Installation

CAUTION !
• The bracket supplied with the unit is specially designed and should be
the only mounting device used for the unit.
•
It is recommended to install the inverter in a suitable location which offers
non-obscured and safe access, in turn ensuring easy access for service
and maintenance.
• Please leave an appropriate gap in between units when installing several
solar inverter systems as shown in Figure 3-5.
• Please install solar inverter at an eye level to allow easy observation for
operation and parameter setting.
• Ambient temperature -25°C~60°C.(power de-rating above 40°C)
> 30 cm
> 20 cm
> 50 cm
> 30 cm
> 30 cm
Figure 3-5 Proper installation gap
15
Installation

4.1 Preparation Before Wiring (Models with Fuses)
4. Wiring
WARNING！SHOCK HAZARD
Whenever a PV array is exposed to sunlight, a shock hazard may exist due
to output wires or exposed terminals. To reduce the risk of shock during
installation, cover the array with an opaque (dark) material and ensure that
the Disconnect Device in the inverter is set to OFF before commencing any
wiring.
• M50A has 15A DC fuse in each Plus and Minus DC connector, the
maximum current of each string should not exceed 10A.
• For models with fuses, PV arrays can connect to the inverter directly, but
parallel connection at external DC distribution box is not recommended
due to the limits of DC fuse. Please refer to Figure 4-1 for the detail wiring
illustrations.
• If you want inverter working at parallel input mode (only 1 MPPT), please
install 2 bus bar kits in the inverter as shown in Figure 4-2. The outer wiring
at DC side is same as Firgure 4-1.
• When grounding the solar array, an isolation transformer is required
because the RPI series does not have galvanic isolation between the
DC-input and AC-output. In addition, Users must install a 1000V/1A midget
size grounding fuse and 1 or 2 bus bar kits in the inverter.
Wiring illustrations please refer to Figure 4-3, Figure 4-4.
• When solar array is grounded,the PID function can not be enable,and the
insulation have to be setting “Plus Grounded” or “Minus Grounded”.
• It must to keep DC and AC power off when disconnected the DC connector.
• Different DC connections type need different settings of insulation detection.
Please refer to 5.2.7 Install Settings for further information.
16
Wiring

Figure 4-1 floating string with separate connection
1
2
3
4
L1
L2
L3
N
PE Communication
Wiring
12
3
AC Wiring DC Wiring
Must be Separate
PV strings
*
* RPI M30A can support 3P3W system.
+
-
+
-
+
-
1
2
3
4
L1
L2
L3
N
PE Communication
Wiring
1 2
3
AC Wiring DC Wiring
Must be Separate
PV strings
*
* RPI M50A can support 3P3W system.
++++
- -- -
RPI M50A
RPI M30A
17
Wiring

bus bar kit *2
DC1+
DC2+
DC1-
DC2-
String 1~5 +
String 6~10 +
String 1~5 -
String 6~10 -
RPI M50A
Figure 4-2 Force M50A operate in parallel mode
18
Wiring

Communication
Wiring
1 2
3
AC Wiring DC Wiring
Separated
connection only
- -- -
Isolated
transformer
Utility To
Inverter
3Ph,
400Vac 3Ph,
400Vac
++++
DC1+
DC2+
DC1-
DC2-
String 1~5 +
String 6~10 +
String 1~5 -
String 6~10 -
1A
Grounding fuse
bus bar kit
Figure 4-3 Minus grounding of M50A with fuse
19
Wiring

Communication
Wiring
1 2
3
AC Wiring DC Wiring
Separated
connection only
- -- -
Isolated
transformer
Utility To
Inverter
3Ph,
400Vac 3Ph,
400Vac
++++
1A
Grounding fuse
bus bar kit *2
DC1+
DC2+
DC1-
DC2-
String 1~5 +
String 6~10 +
String 1~5 -
String 6~10 -
Figure 4-4 Plus grounding of M50A with fuse
20
Wiring