ABB 827E User manual

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© Copyright 2021 ABB. All rights reserved.
PRODUCT MANUAL
827E Modular Inverter System −48 V / +24 V
Input 120 Vac / 240 Vac Output
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© Copyright 2021 ABB. All rights reserved.
TABLE OF CONTENTS
List of Figures ···········································································································································4
List of Tables ·············································································································································5
Foreword ···················································································································································6
Product Information ································································································································· 7
Product Description ·································································································································8
Installation ·············································································································································· 15
Mechanical Installation ····················································································································· 16
General ········································································································································· 16
Shelf Mounting ···························································································································· 16
Electrical Connections ······················································································································ 18
General ········································································································································· 18
DC Input ······································································································································· 19
AC Output ···································································································································· 21
Grounding Electrode Conductor Connections - GEC ································································ 23
Alarm Connections ······················································································································24
Communication Connections ·····································································································26
Inverter - Install / Remove ················································································································28
System Controller - Install / Remove······························································································· 29
Modem - Install / Remove ·················································································································30
Distribution Monitor - Install / Remove ·························································································· 31
Distribution Disconnect Module - Install / Remove ······································································· 32
Initial Turn On, Setpoints, and Adjustments ··················································································· 33
Shelf Turn On and Operational Checkout ·················································································· 33
Adjusting Setpoints ····················································································································35
Specifications ········································································································································· 37
Features Reference ·································································································································40
AC Output Distribution ····················································································································40
Inverter ··············································································································································40
Distribution Disconnect Module (DDM) ··························································································40
Distribution Monitor (DM) ················································································································ 41
System Controller ····························································································································· 41
Display Navigation and Push Buttons ·······················································································43
Display Menus ······························································································································44
Theory of Operation ·······························································································································53
Output Protection ····························································································································· 53
Output Paralleling and Hot Insertion ······························································································55
Considerations for Multiple-Shelf Systems ····················································································56
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© Copyright 2021 ABB. All rights reserved.
Troubleshooting ····································································································································· 57
Safety ······················································································································································63
Safety Statements ····························································································································63
Warning Statements and Safety Symbols ·······················································································64
Precautions ········································································································································65
Revision History ······································································································································66
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© Copyright 2021 ABB. All rights reserved.
List of Figures
Figure 1 19-inch and 23-inch Systems and Shelves ··············································································· 11
Figure 2 Modules Front View ·················································································································· 12
Figure 3 120 Vac & 240 Vac Module Identification ················································································ 13
Figure 4 Side Views of a System (Shelf) ································································································ 13
Figure 5 Mounting - 23”, 25”, and 26” ····································································································17
Figure 6 AC Wiring - without Maintenance Bypass Panel ···································································· 18
Figure 7 AC Wiring - with Maintenance Bypass Panel ·········································································· 19
Figure 8 Shelf Rear View ·························································································································20
Figure 9 DC Input Connections ··············································································································20
Figure 10 AC Output Connections ········································································································· 21
Figure 11 Common Trip Ratings for 10 – 30 Amp Range ······································································ 23
Figure 12 Grounding Electrode Conductor (GEC) Connections ···························································24
Figure 13 Alarm Outputs ························································································································26
Figure 14 DB9 Pin-out ····························································································································· 27
Figure 15 Inverter Install / Remove ·······································································································28
Figure 16 System controller Removal/Installation ···············································································29
Figure 17 Modem Installation ·················································································································30
Figure 18 Distribution Monitor/Distribution Disconnect Module Removal and Installation ··········· 31
Figure 19 Controller Pushbuttons ··········································································································43
Figure 20 Menu Structure - Typical ······································································································· 52
Figure 21 Output Protection, Short Circuit with no Fuse ····································································54
Figure 22 Output Protection - Short Circuit with Fuse ········································································54
Figure 23 Paralleling and Hot Insertion ·································································································55
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© Copyright 2021 ABB. All rights reserved.
List of Tables
Table 1 System Configurations ················································································································9
Table 2 wire and terminals for Individual DC inputs (+BAT and −BAT) ···············································20
Table 3 Recommended Wire and Terminals for AC Output ·································································· 21
Table 4 Typical Trip Ratings for 10 – 30 Amp AC Circuit Breakers ······················································ 22
Table 5 Grounding Electrode Conductor Connections - GEC ······························································24
Table 6 Alarm Outputs ····························································································································25
Table 7 Inverter Shelf Interface Cable Connection ··············································································· 27
Table 8 Setpoint Resolution ···················································································································36
Table 9 Specifications - Inverter ············································································································ 37
Table 10 Specifications - Inverter System ·····························································································38
Table 11 Troubleshooting - Alarm Conditions ······················································································60
Table 12 Troubleshooting - Corrective Actions ···················································································· 61
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© Copyright 2021 ABB. All rights reserved.
Foreword
This manual is intended to help the user of the 827E to install, test, troubleshoot, and understand the
system. If you have any questions or problems, please contact one of the following sources:
SERVICE If for any reason further assistance is needed on any power equipment,
complete engineering and field service groups are available in Galion, Ohio, to
assist you in any way possible.
1-877-546-3243 (US) Option 2
1-972-244-9288 (Int’l) Option 2
PARTS ORDERING For spare part ordering, please contact +1 972-244-WATT (9288) or toll free at
877-546-3243 to request a quote.
RETURN & REPAIR - For repair and return, please contact +1 972-244-WATT (9288) or toll free at
877-546-3243 to request a Return Material Authorization (RMA) for defective
equipment
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© Copyright 2021 ABB. All rights reserved.
Product Information
Please take a moment when the product is new to fill in this information. This data will allow faster
service when calling ABB to order accessories, spare parts, or request field service.
First, locate the product information label. This is typically located on the upper front of the
equipment frame, or on the rear of the frame. Fill in the part number, as it appears on the label, in the
space below.
PART NUMBER
SERIAL NUMBER
DATE CODE
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© Copyright 2021 ABB. All rights reserved.
Product Description
The 827E Inverter System (inverter system) provides AC power output from DC power input.
Inverters (inverter modules) work in parallel supporting redundancy (N + 1 or N + X). This enables the
system to supply uninterrupted AC power in the event that an inverter fails.
Summary
• 120 Vac and 240 Vac systems
• Line to Neutral systems
• Inverter Systems
• Single Shelf Inverter Systems to 7.2 kVA 19”, 23”, 25”, and 26” rack compatible
• Frame Inverter Systems to 28.8 kVA
• Expandable by Inverter and Shelf addition
• Hot Insertion Inverters
• AC Output Distribution Panels - Option
• Maintenance Bypass Panel - Option
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© Copyright 2021 ABB. All rights reserved.
Inverters
Inverters are microprocessor controlled and have no adjustments. Each inverter can be inserted or
removed from an energized shelf without shutting down the system (hot swappable).
The inverter system includes several alarm indicators, located on the individual inverters, the System
Controller, and the Distribution Disconnect Module. Refer to the Features Reference section for a
detailed description of all alarms.
Single Shelf Systems - typical1
Mounting Inverter
Positions
Input Output Capacity2
N+1 (full)
19” 23” −48 Vdc +24 Vdc
·4·120 Vac 30A
(40A
3.6 kVA
4.8 kVA)
·4·240 Vac 15A
(20A
3.6 kVA
4.8 kVA)
·4·120 Vac 15A
(20A
1.8 kVA
2.4 kVA)
·6·120 Vac 50A
(60A
6.0 kVA
7.2 kVA)
·6·240 Vac 25A
(30A
6.0 kVA
7.2 kVA)
·6·120 Vac 25A
(30A
3.0 kVA
3.6 kVA)
Frame Systems - −48 Vdc Input, 23” Only - typical1
Inverter Inverter
Positions System N+1 (full)
240 Vac System N+1 (full)
1650 kVA
(60 kVA
6.0 kVA
7.2 kVA)
25A 6.0 kVA
7.2 kVA)
212 110 kVA
(120 KVA
13.2 kVA
14.4 kVA)
55A 13.2 kVA
(60A 14.4 kVA)
318 170 kVA
(180 kVA
20.4 kVA
21.6 kVA)
85A 20.4 kVA
(90A 21.6 kVA)
424 270 kVA
(280 K
27.6 kVA
28.8 kVA)
115A 27.6 kVA
(120A 28.8 kVA)
System Configurations
Inverter systems are available as single shelf systems or frame systems.
Single shelf systems provide basic inverter system features and mount in an existing frame.
Frame Systems (−48 Vdc input only) provide up to four inverter shelves and optional Maintenance
Bypass Panel and AC Distribution Panels factory assembled in a 23” frame (rack).
1 See the Ordering Guide for available configurations.
2 N+1 output: a system fully populated with inverters where the output of a single redundant inverter is not included.
full output: a system fully populated with inverters where the output all inverters is included.
Table 1 System Configurations

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Shelves
Each shelf must include a System Controller, a Distribution Disconnect Module (DDM), and at least
one Inverter.
Shelves are available for 120 Vac and 240 Vac. Shelves and inverters are keyed. 120 Vac inverters will
only fully insert into 120 Vac shelves. 240 Vac inverters will only fully insert into 120 Vac shelves.
Input to each inverter position is wired separately via individual DC input lugs. Only the positions
in the shelf being utilized need to be wired by installers. Refer to T-439827E at the included with
this manual. For more information, refer to the DC Input section.
Shelf – with Controller and DDM Input Mounting Output Capacity (maximum N+1)3
657827E-23 J438827E L3 −48 Vdc 23” 120 Vac 10A 1.2 kVA
657827E-3J438827E L4 −48 Vdc 19” 120 Vac 10A 1.2 kVA
150026249 J438827E L3A −48 Vdc 23” 240 Vac 5A 1.2 kVA
150026250 J438827E L4A −48 Vdc 19” 240 Vac 5A 1.2 kVA
657827E-2324 J438827E L9 +24 Vdc 23” 120 Vac 5A 0.6 kVA
657827E-1924 J438827E L8 +24 Vdc 19” 120 Vac 5A 0.6 kVA
System Controller
The System Controller, located in the far left slot of each inverter shelf, allows the user to monitor
real-time system operation such as plant voltage and plant current, and also allows system setpoints
for parameters, such as alarm thresholds, to quickly be changed with the touch of a few buttons.
Real-time readings may be viewed for both; the system and each individual inverter.
System Controllers in each shelf are independent.
Refer to the System Controller segment in the Features Reference section.
Distribution Disconnect Module (DDM)
The Distribution Disconnect Module (DDM), located to the right of the System Controller, provides an
AC disconnect and shelf distribution monitoring via the Distribution Monitor (DM). The AC
disconnect is a circuit breaker that provides overload protection and fault isolation. The DDM works
with the System Controller to monitor shelf operation.
Maintenance Bypass Panel (MBP)
A maintenance bypass panel is optional for the 827E. Refer to the J-Drawing (J438827E L51 and L52).
The main purpose of the MBP is to allow an AC load to be switched from its primary source (827E
Inverter Plant) to an alternate source (AC Line) and back to the primary source (827E Inverter Plant)
again. This may be required, for example, when doing maintenance or upgrades to the Inverter Plant.
L51 and L52 MBPs provide mechanical bypass via contactors.
The MBP includes alarm aggregation of alarm signals from 1 to 4 shelves. The MBP provides
integrated alarm signals from a multi-shelf, frame system by combining alarm signals from
individual shelf System Controllers.
Input Output CapacityInverter
SI10A120PME J438827E L11 −48 Vdc 120 Vac 10A 1.2 kVA
SI5A240PME J438827E L17 −48 Vdc 240 Vac 5A 1.2 kVA
SI5A120PME J438827E L14 +24 Vdc 120 Vac 5A 0.6 kVA
3 N+1 output: a shelf fully populated with inverters where the output of a single redundant inverter is not included.

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© Copyright 2021 ABB. All rights reserved.
Figure 1 19-inch and 23-inch Systems and Shelves
a. 19-Inch System
Distribution Disconnect
Module
Inverters
System Controller Module
19.00
18.31
8.72
a. 23-Inch System
Module Designations
SC00 DM15 01 02 03 04 05 06
23.00
22.31
8.72

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Figure 2 Modules Front View
Fans
Retaining Screw
LCD Display
Control
Buttons
Serial Port
Modem Option
AC Load Disconnect Breaker
100A
Distribution
Monitor
LED
Distribution
Disconnect
Module
Inverter
LEDs
Handle
System Controller

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© Copyright 2021 ABB. All rights reserved.
Figure 3 120 Vac & 240 Vac Module Identification
240 Vac Inverter 120 Vac Inverter
Left Side View
Alarm Relay Output
Connector
AC Opening
Connector Pin-Out
DC Opening for
1 1/2" conduit
Product Information: part
number, serial number,
revision level, voltages, etc.
Right Side View
Figure 4 Side Views of a System (Shelf)

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© Copyright 2021 ABB. All rights reserved.

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© Copyright 2021 ABB. All rights reserved.
Installation
Equipment Included In Shipment
Included in a shipment of an 827E inverter system are an inverter shelf or shelves (each equipped
with a System Controller and a Distribution Disconnect Module) and inverters and/or blank panels
quantities as specified on the inverter system order.
CAUTION: Loads and Inverters may be damaged if their AC voltages are not matched. Shelves and
Inverters are available for both 120 Vac and 240 Vac applications.
CAUTION: Inverters may be damaged or may not function properly with improper DC input
voltage. Shelves and Inverters are available for both −48 Vdc and +24 Vdc applications.
Verify equipment received before installing the inverter system
• Verify product received matches the order
• Verify the correct inverter input voltage and output voltage
• Verify the correct shelf / system input voltage and output voltage
Contact ABB immediately if there is a question about the configuration of the system.
Tools and Test Equipment Required
The tools necessary to install and test the inverter system include items such as a typical Phillips
head screwdriver, torque wrenches, a ratcheting wrench set, wire cutters, a calibrated digital
multimeter, wire crimp tool and die set, etc. No unusual tools are required.
CAUTION: Read this manual thoroughly before attempting to connect, operate, or service an inverter
system. Pay particular attention to these sections:
• Safety
• Considerations for Multiple-Shelf Systems

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© Copyright 2021 ABB. All rights reserved.
Mechanical Installation
General
This section details all of the information that is necessary to mechanically install the system.
Complete mechanical installation before any electrical connections are made to the system. The
inverter system may be rack or pedestal mounted.
Shelf Mounting
Refer To Figure 5.
NOTE: The DC power plant supplying input circuits to the inverter system must be wired as stated in
Telcordia document GR-1089-CORE, section 9.8.3, Isolated DC return technique. The power
plant must have a dedicated grounding conductor from the power plant common DC return
bus to the Central Office Ground Bar.
This dedicated grounding conductor must not be bonded to or used as the frame ground
cable. A separate connection to the Central Office Ground System must be used for frame
grounding purposes.
NOTE: List 8 system comes equipped with an adaptor plate for 19” to 23” mounting.
NOTE: Optional 25” and 26” mounting kits are available for 23” shelves - J438827E List 5 and List 6
respectively. Refer to Figure 5 for mounting dimensions.
Once the system has been removed from the shipping container:
• Verify that the input DC voltage matches the shelves and inverters: +24 Vdc (+27 Vdc nominal) or −48 Vdc (−54
Vdc nominal).
• Verify that AC voltage matches across inverters, shelves, and loads.
• Install the system as follows:
1. Move the mounting brackets as required
2. Ensure there is proper clearance in the rack or shelf to install the system.
3. Put the system into position and secure with the screws located at each outside corner (four screws total).
4. Repeat steps 1 thru 3 for additional shelves, as required.
• Verify the input source.

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a. Mounting (typical 23-inch shelf shown)
b. Optional 25” Mounting Brackets (Refer to List 5 in 438827E)
c. Optional 26” Mounting Brackets (Refer to List 6 in 438827E)
The height between mounting holes for a 19-inch shelf is the same, however the width between holes
is 18.31"
Figure 5 Mounting - 23”, 25”, and 26”

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Electrical Connections
General
This section details all of the electrical connections involved when installing the inverter system.
Complete all mechanical installation instructions (refer to the Mechanical Installation section) before
making any electrical connections.
Figure 6 and Figure 7 are basic wiring diagrams showing typical connections with and without the
maintenance bypass panel. Refer to the T-Drawing (438827ET) for complete details.
GEC Neutral
Strap
First shelf only
Grounding Electrode Conductor (GEC)
Grounding
Electrode
Conductor (GEC)
Connection First
shelf only
Figure 6 AC Wiring - without Maintenance Bypass Panel

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DC Input
Refer to Figure 9.
Note: Each input must be fed by a customer supplied 40 amp circuit breaker. Be sure that all power
is turned off before any installation steps are performed.
1. Turn OFF all DC feed circuit breakers (customer supplied, 40A minimum per fully loaded module is required).
2. Refer to Table 2 for recommended wire and terminal sizes for DC connections.
3. Remove rear cover.
4. Remove a conduit knockout from the left side of the plant (as facing the rear of plant) (one is on the back of the
plant, one is on the left, and one is on the bottom). A 2” access hole is provided. Size and install conduit (not
included) for the input wiring in accordance with local code. The bushing for the opening is included in a bag
attached to the system.
5. Attach +BAT cables to +BAT Terminal on individual inverter backplanes via a 1/4" on 5/8” two-hole lug (one
connection per module). Refer to Figure 8 and Figure 9 for +BAT input location. Refer to Table 2 for more details.
6. Attach −BAT cables to −BAT Terminals on individual inverter backplanes via a 1/4" on 5/8” two-hole lug (one
connection per module). Refer to Figure 8 and Figure 9 for −BAT input location. Refer to Table 2 for more details.
7. When the 827E is installed using the maintenance bypass switch and NOT as a Separately Derived System the
GEC Neutral Bond Strap as depicted in Figure 12 must be removed. Refer to NEC Article 100 for definition of a
Separately Derived system. This assumes that the utility neutral connection is bonded to ground. See the
Grounding Electrode Conductor Connections section and Figure 12.
Figure 7 AC Wiring - with Maintenance Bypass Panel

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Shelf Connection Terminal Type4Recommended Wire Size
all −BAT & +BAT 1/4" on 5/8” two-hole lug 8 AWG per connection
+BAT −BAT
+24 Vdc Input System +24 Vdc Ground
−48 Vdc Input System Ground −48 Vdc
Table 2 wire and terminals for Individual DC inputs (+BAT and −BAT)
Figure 8 Shelf Rear View
Figure 9 DC Input Connections
+BAT
−BAT
4 Lugs not provided.