Delta RPI M80U Specification sheet

RPI M80U
Operation and Installation Manual
Grid-tie Transformerless Solar Inverter
The power behind competitiveness
www.deltaww.com

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Table of Contents
1 Safety
1.1 Information of the Inverter
1.1.1 Disclaimer
1.1.2 Target Group
1.2 General Safety
1.2.1 Condition of Use
1.2.2 Symbols
2 Introduction
2.1 Valid Model
2.2 Unpack the Inverter
3 Installation
3.1 Mechanical Installatio
3.2 Electrical Installation for AC Cabling
3.2.1 AC Cabling Installation for M80U_120
3.2.2 AC Cabling Installation for M80U_121
3.3 Electrical Installation for DC Cabling
3.3.1 DC Cabling Installation for M80U_120
3.3.2 DC Cabling Installation for M80U_121
3.4 Communication Module Connections
3.4.1 RS-485 Connection
3.4.2 EPO Function & Digital Input
4 Commissioning
4.1 Display Introduction
4.2 First startup
4.2.1 Home Page
4.2.2 Power Meter
4.2.3 Energy Log
4.2.4 Event Log
4.2.5 Inverter Information
4.2.6 General Settings
4.2.7 Install Settings
4.2.7.1 Inverter ID
4.2.7.2 Insulation
5 Maintenance
5.1 Replace Surge Protection Device (SPD)
5.2 Replace Internal String Fuse
5.3 Smart Fans Replacement and Filters Cleaning
5.4 De-Commissioning
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3

Disassemble the Wiring box compartment
6 Error message and Trouble Shooting
7 Technical Data
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Figure 2-1 : Components of M80U
Figure 2-2 : Overview of M80 series
Figure 2-3 : Rating labels of M80U / M80A
Figure 2-4 : Wiring box layout of M80U / M80A
Figure 3-1 : Mounting bracket dimensions
Figure 3-2 : Required position for at least 8 screws
Figure 3-3 : Prohibited position for screws
Figure 3-4 : Permitted mounting positions
Figure 3-5 : Prohibited mounting positions
Figure 3-6 : Required mounting clearances
Figure 3-7 : Stripping cables for AC terminal
Figure 3-8 : Location for AC terminal
Figure 3-9 : Stripping cables for AC terminal
Figure 3-10 : Two optional Locations for AC terminal
Figure 3-11 : Guideline for aluminum conductor
Figure 3-12 : Wiring Box layout for M80U
Figure 3-13 : Location for DC terminals for M80U
Figure 3-14 : Wiring Box layout for M80U
Figure 3-15 : Location for DC terminals for M80U
Figure 3-16 : Guideline for aluminum conductor
Figure 3-17 : Communication Module
Figure 3-18 : Multiinverter connection illustration
Figure 3-19 : EPO function
Figure 4-1 : Panel indicator
Figure 4-2 : Country ,language and ID settings for first startup
Figure 4-3 : Home page
Figure 4-4 : Power meter page
Figure 4-5 : Energy log Page
Figure 4-6 : Event log Page
Figure 4-7 : Inverter information page
Figure 4-8 : General settings page
Figure 4-9 : Install settings page
Figure 4-10 : Inverter ID page
Figure 4-11 : Insulation page
Figure 5-1 : AC and DC SPD
Figure 5-2 : Remove front cover of wiring box compartment
Figure 5-3 : The alarms indicate AC and DC SPD Fail
Figure 5-4 : Pull out the connectors and remove the screws as shown in arrows
Figure
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5

Figure 5-5 : LED indicator on fuse holder
Figure 5-6 : Pull out the fuse
Figure 5-7 : Smart fans location on WB and PM compartment
Figure 5-8 : Smart fan location on WB when the WB lid is uncovered
Figure 5-9 : 12" Potting fan kit
Figure 5-10 : Disassembling fan inside the wiring box compartment
Figure 5-11:
Disassembling fans inside the power module compartment (showing one side only)
Figure 5-12 : Removal of filters
Figure 5-13 : The ON/OFF positions of DC Switches
Figure 5-14 : Remove AC, DC, and communication cables and then unscrew 6 screws
Figure 5-15 : Remove 8 screws and then separate WB from PM
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6

Table
Table 2-1 : Packing list of M80U
Table 2-2 : Rating label explanation of M80U / M80A
Table 2-3 : Wiring box layout description of M80U / M80A
Table 3-1 : Definition of RS-485
Table 3-2 : Terminal resister setting
Table 3-3 : Definition of digital input & EPO function
Table 4-1 : LED indicator
Table 5-1 : SPD Specifications
Table 6-1 : Error Message
Table 6-2 : Warning Message
Table 6-3 : Fault Message
Table 7-1 : Specifications for M80U
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7

Copyright – DELTA ELECTRONICS, INC. - All rights reserved.
This manual accompanies our product for use by the end users. The technical
instructions and illustrations contained in this manual are to be treated as
confidential and no part may be reproduced without the prior written permission
of DELTA ELECTRONICS, INC. Service engineers and end users may not
divulge the information contained herein or use this manual for purpose other
than those strictly connected with correct use of the product. All information and
specifications are subject to change without notice.
DELTA ELECTRONICS, INC. shall have no obligation to both personal injury
and property damage hereinafter with respect to any actions -- (a) the product
has been installed and repaired improperly; (b) the product has been misuse
without following the instructions on this user manual; (c) the product has failed
due to incorrect unpacking.
1 Safety
1.1 Information of the Inverter
1.1.1 Disclaimer
This user manual of the solar inverter is prepared for a person who is well-trained
for installing, commissioning, using, and doing maintenance. The well-trained
person must have the following basic and advanced skills:
• The fundamentals of electricity, wiring, electrical components and electrical
schematic symbols.
• Knowledge of how a solar inverter works and is operated.
•
Training in the installation and commissioning of electrical devices and installations.
• Training in how to deal with the dangers and risks associated with installing
and using electrical devices and installations.
• Compliance with this manual and all safety information.
Please read the user manual before working on the product.
1.1.2 Target Group
Safety
8

1.2 General Safety
- There is no accessory such as a transformer along with our product and
therefore the product has no galvanic isolation.
Please do not connect grounded Photovoltaic modules to the product.
If you connect grounded Photovoltaic modules to the product, the error message
INSULATION (E34) shows up.
- It is prohibited to connect the L1, L2, and L3 to the ground.
ATTENTION : NO GALVANIC ISOLATION
- Please read these instructions carefully and save them for later use.
IMPORTANT SAFETY INSTRUCTIONS : SAVE THESE INSTRUCTIONS !
To prevent any personal injury and any property damage, also ensure long-term
operation of the solar inverter, you must read this section carefully and review all
the safety instructions at all times before using this inverter.
This user manual provides important instructions for Delta grid-tie transformerless
solar inverter. The product is designed, tested, verified, and certified according
to international safety requirements, regulations, and standards but precautions
must be observed when installing and operating the product.
The inverter installation must be performed by an authorized electrician in accordance
with the local and the National Electrical Code®ANSI/NFPA 70 or the Canadian
Electrical Code®CSA C22.1 and OSHA requirements. Our Product is suitable
for both indoor and outdoor use.
The RPI M80U is a transformerless solar inverter with two MPP trackers which
converts the variable direct current of the solar array into a utility frequency
grid-compliant three-phase current and feeds it into the utility grid.
The Photovoltaic modules used must be compatible with the inverter.
Photovoltaic modules with a high parasitic capacitance to ground may only be
applied if the capacitive coupling does not exceed 8μF.
The inverter must only be operated in countries for which it is approved by Delta
and the grid operator.
1.2.1 Condition of Use
9
Safety

This section describes the definition of the symbols in this manual.
In order to prevent both personal injury and property damage, and to ensure
long-term operation of the product, please read this section carefully and follow
all the safety instructions while you use the product.
1.2.2 Symbols
DANGER!
- This warning indicates an immediate hazard which will lead to death or serious
injury may occur.
- This warning indicates a possible hazard which may lead to minor injury
may happen.
CAUTION !
WARNING !
- This warning indicates a possible hazard which may lead to death or serious
injury may occur.
- This warning indicates a possible damage to property and the environment
might happen.
ATTENTION
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Safety

- Additional information is indicated by an exclamation mark enclosed by double
circle. This means the following section contains important information and
user should follow the instruction to prevent any hazards.
INFORMATION
DANGER : ELECTRICAL HARZARD!!
- This warning indicates an immediate electrical hazard which will lead
to death or s erious injury may occur.
- This warning indicates be careful of hot surfaces when operating the product.
- Do not perform any task until the product cool down sufficiently.
CAUTION : HOT SURFACES, DO NOT TOUCH!
- Wait for a prescribed amount of time before engaging in the indicated action.
- Patientez le délai requis avant d’entreprendre l’action indiquée
- Equipment grounding conductor (PE)
- (PE) Équipement conducteur de terre
11
Safety

The RPI M80U is designed to enable the highest levels of efficiency and provide
longest operating life of photovoltaic inverter by state-of-the-art high-frequency
and low EMI technology. It is suitable for outdoor use.
The inverter installation must be performed by an authorized electrician in
accordance with the local and the National Electrical Code® ANSI/NFPA 70,
NEC 690.5, UL 1741, IEEE 1547, IEEE 1547.1, OSHA requirements and
the Canadian Electrical Code® CSA C22.1.
The user manual is valid for the following device types :
• RPI M80U_120
• RPI M80U_121
• RPI M80A_120
This user manual must be followed during installation, operation, and maintenance.
The RPI M80 Series have 3 models as shown in Figure 2-2. Delta reserves the
right to make modifications to the content and technical data in this user manual
without prior notice.
2 Introduction
2.1 Valid Model
- There is no accessory such as a transformer along with our product and
therefore the product has no galvanic isolation.
Please do not connect grounded Photovoltaic modules to the product.
If you connect grounded Photovoltaic modules to the product, the error message
INSULATION (E34) shows up.
- It is prohibited to connect the L1, L2, and L3 to the ground.
ATTENTION : NO GALVANIC ISOLATION
Introduction
12

The components of M80U is shown as Figure 2-1.
2.2 Unpack the Inverter
① ② ③
RPI M80U
Object Qty Description
1 Delta Solar Inverter 1 pc
1 pc
1 pc
RPI series solar inverter
2 User Manual
Important instructions for solar inverter
Safety instructions should be followed
during installation and maintenance
3 Mounting Bracket Wall mounting bracket
Table 2-1 : Packing list of M80U
Figure 2-1 : Components of M80U
13
Introduction

M80U_120
M80U_121
M80A_120
Air Outlets /
Smart Fans
Rating Label
DC Switch1½" gland for DC
Wiring
Air Inlets
Communication
Connetions
2" AC Cable Opening
LCD / LED Display
and Buttons
Air Outlets /
Smart Fans
Rating Label
DC SwitchMC4 type DC connector
18 pairs
Air Inlets
Communication
Connetions
2" gland for AC Wiring
LCD / LED Display
and Buttons
Air Outlets /
Smart Fans
Rating Label
2" gland for DC Wiring
2½" gland for DC Wiring
Air Inlets
Communication
Connetions
2" gland for AC Wiring
2½" gland for AC Wiring
LCD / LED Display
and Buttons
Figure 2-2 : Overview of M80 series
14
Introduction

The following Figure 2-3 shows the rating labels of M80U / M80A and the table
(Table 2-2) along with these labels explains the definition of the specific mark.
Figure 2-4 illustrates the layout of wiring box of M80U / M80A and the table
(Table 2-3) along with this layout describes the detail of each area.
This compartment includes inverter inputs (DC), outputs (AC), surge protection
device (SPD), fuse holder, DC switch and the communication connection such
as RS-485.
Symbol Definition
FCC designation
Please read the user manual for further information
Danger : Electrical Hazard
Danger : Electrical Hazard for the isolation duration
Warning of the hot surface of the inverter
ETL Listed Mark approved by Intertek Lab
Table 2-2 : Rating label explanation of M80U / M80A
Figure 2-3 : Rating labels of M80U / M80A
15
Introduction

①
①
②
③
④
⑤
IN 1
IN 2
⑥
⑦
⑧
⑧
⑨
⑨
⑩
⑪
⑫
⑫
⑬
⑬
⑭
⑭
⑮
⑮
⑯
⑯
⑰
⑰
ComponentNO. NO.
2.0” cable opening for AC
2½” cable opening for AC
1½” cable opening for DC
2.0” cable opening for DC
2½” cable opening for DC
50mm2AC terminal
75mm2AC terminal
Fuse holder type DC IN1
Fuse holder type DC IN2
Component
DC switch for IN1
DC switch for IN2
Type II AC SPD
Type II DC SPD
Internal AC terminal
Internal DC terminal
Wiring box fan
RS-485 communication card
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17
1
2
3
4
5
6
7
8
9
Table 2-3 : Wiring box layout description of M80U / M80A
Figure 2-4:Wiring box layout of M80U / M80A
IN 1 IN 2
16
Introduction

The chapter contains instructions for (1) Mechanical installation; (2) Electrical
Installation; (3) Communication setup.
3 Installation
- The unit should not be installed in direct sunlight.
CAUTION !
WARNING !
- Do not install the unit near or on flammable surfaces.
- Please mount the unit tightly on a solid / smooth surface.
- Please fix at least 8 M8 Phillips head screws for the wall mounting bracket.
- The bracket shipped with the unit is specially designed and should be the only
mounting device for the mechanical installation.
CAUTION !
This unit is designed to be wall-mounted. Please ensure that the installation is
perpendicular to the floor and the AC and DC terminal are at the bottom position.
Please follow the instruction as shown from Figure 3-1 through 3-3. First, fix the
wall mounting bracket on a solid support surface. Second, please mount the
inverter on the bracket securely. Note that Figure 3-1 through 3-6 should be
followed.
To mount the inverter on the wall, please follow the procedure :
1. Screw the wall mounting bracket on the wall with at least 8 M8 Phillips head
screws. Please refer to Figure 3-1 and 3-2 for correct installation.
2. Hang the inverter on the wall mounting bracket.
3.
There are two ways for fixing the wall mounting bracket as shown in Figure 3-2.
3.1 Mechanical Installatio
17
Installation

Figure 3-1:Mounting bracket dimensions
400.0
823.1
763.1
703.1
187.5
127.5
67.5 150.0
410.0
18
Installation

Necessary for vertical fixing Necessary for horizontal fixing
Figure 3-2:Required position for at least 8 screws
Figure 3-3:Prohibited position for screws
19
Installation

Figure 3-4:Permitted mounting positions
Figure 3-5:Prohibited mounting positions
90
Max. 75
>75
O : Permitted / X : Prohibited
20
Installation