Ideal Power Stabiliti Series User manual

Quick Start Guide
Stabiliti™ Series
30 kW Power Conversion System (PCS)
Model Numbers: 30C, 30C3
MAN-00114, Rev D

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
Disclaimer
This document is provided “as is” and Ideal Power Inc. (IPWR) makes no representations
warranties, expressed or implied, with respect to the information contained herein. IPWR has
made reasonable efforts to ensure the accuracy of information herein and at the time of
publication. However information is constantly evolving and IPWR does not purport the
information provided is correct, comprehensive or exhaustive. This document is for informational
purposes only. You should not act upon information without consulting IPWR or its authorized
distributors.
© Copyright 2016, Ideal Power Inc. All rights reserved. No parts of this document may be
reproduced in any form without the express written permission of IPWR. Ideal Power Inc., and
the Ideal Power logo are trademarks of Ideal Power Inc. All other trademarks and service marks
belong to their respective owners.

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
Table of Contents
SECTION 1.0 INTRODUCTION ...................................................................................................5
Purpose, Scope, and Audience...................................................................................................................5
SECTION 2.0 SYSTEM SPECIFICATIONS.................................................................................5
Hardware Description ................................................................................................................................5
Unpacking and Inspecting the PCS............................................................................................................6
Mounting the PCS......................................................................................................................................6
SECTION 3.0 LOW VOLTAGE WIRING......................................................................................6
Wiring Access............................................................................................................................................6
Interface Overview.....................................................................................................................................8
SECTION 4.0 HIGH-VOLTAGE WIRING...................................................................................11
Wiring Access..........................................................................................................................................11
AC1 Interconnect Board ..........................................................................................................................11
AC External Circuit Protection Disconnect……………………………………………………..………12
DC2/DC3 Interconnect Board..................................................................................................................12
DC2 and DC3 External Circuit Protection Disconnect………………..………………………..………13
SECTION 5.0 MODBUS INTERFACE .......................................................................................13
PCS Configuration, Control, and Monitoring..........................................................................................13
Application Specific Register Settings.....................................................................................................14
Modbus Register Assignments.................................................................................................................15
Scaling Factors.........................................................................................................................................18
Watchdog Timer.......................................................................................................................................20
SECTION 6.0 CONTROL METHODS........................................................................................20
AC1 Control Methods..............................................................................................................................20
DC2/DC3 .................................................................................................................................................20
Control Methods ......................................................................................................................................20
Control Method Uses and Restrictions ....................................................................................................20
SECTION 7.0 POWER FLOW SCENARIOS .............................................................................22
Initial System Configuration: Battery on DC2; PV Array on DC3 ........................................................22
Single Battery Power Exchange...............................................................................................................23
Dual Battery Power Exchange.................................................................................................................23
AC Microgrid –Using Single Battery .....................................................................................................23
AC Microgrid –Using Dual Batteries .....................................................................................................24
Solar + Storage Microgrid........................................................................................................................24
Solar + Storage Microgrid, with Genset Backup .....................................................................................24

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
PV Firming / Demand Management........................................................................................................25
PV + Battery Sum to Grid........................................................................................................................26
Battery Charging from PV and/or Grid....................................................................................................26
SECTION 8.0 LABVIEW MODBUS TOOL ................................................................................27
Table of Figures
Figure 1: Control Board Low-Voltage Connectors ……………………………………………….…..……7
Figure 2: 30C3 AC1 Wiring Interconnection Board ………………………………………………………11
Figure 3: 30C3 DC2 and DC3 Wiring Interconnection Board……………………………………….…….12
Figure 4: AC1 and DC2/DC3 Interconnect Boards….……………….………………………………..…..27
Table of Tables
Table 1: AC1 Registers……………………………………………………….…………………………....15
Table 2: DC2/DC3 Registers……………………….…………………………………………….……..…16
Table 3: Other Pertinent Registers ……………………………………………….……………………..…17
Table 4: Register Scaling Factors …..…………………………………………………………………......19

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
0
SECTION 1.0 INTRODUCTION
Purpose, Scope, and Audience
This Quick Start Guide describes the features and capabilities of the Stabiliti™ 30C3 Multiport
Power Conversion System (“PCS” or “Converter”), as well as the Stabiliti™ 30C Dual Port PCS.
It should be used in conjunction with other product documentation provided by Ideal Power
(“IPWR”), which are referenced throughout this Quick Start Guide.
The intended audience is engineering lab personnel familiar with high-voltage/high-power
systems and the general safety issues related to the wiring and use of 3-phase AC power and
high-voltage battery and PV systems.
The Stabiliti™Series Installation and Operations Manual (MAN-00115) should be used to
ensure safe installation and operation of this Converter. Please review this entire document
prior to starting your system evaluation. Contact [email protected] for technical support
as needed.
SECTION 2.0 SYSTEM SPECIFICATIONS
Hardware Description
The 30C3 PCS uses IPWR’s proprietary Power Packet Switching Architecture™(“PPSA”) to
efficiently transfer and manage power flows amoung three power ports: AC1, DC2, and DC3:
AC1 is a 3-Wire, 3-Phase AC power port.
DC2 is a DC power port typically dedicated to battery-based energy storage systems.
DC3 is an auxiliary DC power port for use with a second battery system, or a PV Array.
The 30C is a Dual Port PCS based on the 30C3 platform. The primary difference is that the Port
DC3 power electronics are depopulated and disabled at the factory. Other than the noted
depopulation of power electronics on DC3, the Stabiliti™Series PCS share a common
Firmware and Hardware platform.
The 30C has the following power port configuration:
AC1 is a 3-Wire, 3-Phase AC power port.
DC2 is a DC power port typically dedicated to battery-based energy storage systems.
The remainder of this document is dedicated to the 30C3, which can be configured to emulate
the 30C by setting port DC3 to the IDLE Control Method.

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
Unlike previous PCS offerings from IPWR, the Stabiliti™Series PCS uses a novel Link
Transformer coupled with PPSA to deliver full galvanic isolation between the AC and DC power
ports. This isolation also delivers greater flexibility with regards to DC wiring options: floating;
grounded-unipolar; as well as bipolar battery types are all supported (minor wiring changes are
required to their DC power board connections).
All ports support bi-directional power flows (up to 30 kW max per port). Their highly flexible
operating modes are managed via Modbus RTU over an RS485 serial, control, and monitoring
interface. Modbus TCP is also supported. Future versions of the Stabiliti™Series PCS will
support wireless connectivity options.
Unpacking and Inspecting the PCS
The Stabiliti is pallet shipped, and is enclosed in a purpose-built heavy-duty cardboard box.
Once unpacked, inspect the PCS for any obvious shipping damage. Immediately contact your
shipper and Ideal Power regarding any damage noted.
Mounting the PCS
The PCS, when installed on its wall mounting bracket weighs approximately 135 pounds.
External dimensions are 20.5”W x 40”H x 16”D. The PCS MUST always be installed in a
vertical upright position, this includes testing and evaluation purposes. Do not block cooling
airflow to the bottom air intake filter or the exhaust output, which is located on the upper door
face of the unit. Complete the mounting and installation following instructions in the Stabiliti™
Series Installations and Operations Manual (MAN-00115).
SECTION 3.0 LOW VOLTAGE WIRING
Wiring Access
The PCS wiring compartments are accessed by three screws which open the full-sized (20.5” x
40”) hinged front door. All low-voltage wiring is directly terminated to connectors located on the
system’s Control Board, located on the upper left side of the enclosure.
Other than Ethernet and USB connections, low-voltage terminations are bare wire type.
Sourcing appropriate cables, conductors, and wiring are the customer’s responsibility.
Care should be taken when making up, routing, and connecting low-voltage cables. The
PCS should be disconnected from AC and DC power sources and a grounding strap
should be worn by the equipment installer. Refer to MAN-00115, Stabiliti™Series
Installation and Operations Manual for additional information regarding low-voltage
wiring.
In all Stabiliti™Series applications, an outside system controller is required to configure, control,
and monitor the PCS in real-time via the serial Modbus RTU, or Modbus TCP interface. These
energy storage systems may also utilize other low-voltage interfaces shown in Figure 1.

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
Figure 1: Control Board Low-Voltage Connectors
Shown in Figure 1,
there are nine (9) low-voltage interfaces
on the Control Board. From top to
bottom in ascending order:
1. AC Disconnect (J8)
2. E-Stop / Aux 24 V In (J9)
3. RS485 (J10)
4. Sync/CAN (J11)
5. Transfer Switch (J16)
6. Ethernet (J7)
7. USB (J13)
8. Aux 24 V out (J15)
9. Arc Fault Interface (J12)

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
Interface Overview
#1 - AC Disconnect
2-Pin Phoenix-style connector
Pin 1 is relay “in”
Pin 2 is relay “out”
This low-power relay driver output will open whenever the PCS senses a grid-fault condition.
It is intended to drive an external 24 Vdc relay which in turn drives an external AC
contactor/disconnect, to open the connection between the PCS and the grid. 2.5 A is the
maximum load current.
#2 - E-Stop / Aux 24 V In
4-Pin Phoenix-style connector
Pin 1 is Ground
Pin 2 is Emergency Stop
Pin 3 is Ground
Pin 4 is Auxiliary 24 V in
For normal PCS operation, the E-Stop input (pin 2) must be connected to ground. If left open or
tied to 24 Vdc, the E-Stop feature is activated and the PCS will cease exporting power and
move to an idle state. For voltage-forming applications, connect a 150 W 24 Vdc power supply
between Ground (pin 3) and Aux 24 V in (pin 4).
This external power supply is required to keep the control board awake when the PCS is black-
started in voltage-forming mode. The power supply also keeps the control board awake when
transitioning between voltage-following and voltage-forming modes.
For applications that support only voltage-following operation (grid-tied), the supply is not
required.
NOTE: For initial Modbus configuration and read/write verification, use of the external supply is
useful, otherwise a 480 Vac grid connection is required to power the Control Board.
#3 - RS485
3-Pin Phoenix-style connector
Pin 1 is RS485 D0 ( also known as A/A', positive half of differential pair)
Pin 2 is RS485 D1 ( also known as B/B', negative half of differential pair)
Pin 3 is isolated ground ( Common, also known as C/C', signal/power)
2-Wire Serial Modbus interface. Factory default: 240 / 19,000 / 8 / even / 2. The media layer
protocol uses 2-wire Modbus RTU. This protocol relies on RS485 differential signaling. The
need for external termination resistors is determined by a number of factors including Modbus

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
run length, number of devices on the Modbus run, type of interconnection cable, and baud rate
selected.
A maximum of one terminating resistor should be used when the Modbus interface of multiple
units are daisy chained together and connected to one master Modbus device. The optional
120 ohm Modbus terminating resistor is frequently not necessary, and may in fact interfere with
proper communications operation under some circumstances. Shorter connections typically
perform quite well without a termination resistor.
#4 - Sync/CAN
8-Pin Phoenix-style connector
Pin 1 is CAN_L
Pin 2 is CAN_H
Pin 3 is CAN isolated ground
Pin 4 is Sync RX_N
Pin 5 is Sync RX_P
Pin 6 is Sync TX_N
Pin 7 is Sync TX_P
Pin 8 is Sync isolated ground
NOTE: The CAN interface is reserved for future use.
#5 - Transfer Switch
8-Pin Phoenix-style connector
J16 pin 1 Island (24 Vdc)
J16 pin 2 Island Return (24 Vdc Return)
J16 pin 3 Island Acknowledge Return (24 Vdc Return)
J16 pin 4 Island Acknowledge (24 Vdc)
To enable voltage-forming (islanded operation), both pin 2 and pin 3 on J16 must be connected
ground, or left open. Connect to 24 Vdc to ensure the system never attemps to island while the
Facility Power Control Method is enabled.
These inputs are designed to interface with external third-party Islanding Switchgear
which allows the PCS to move between grid-following and grid-forming modes in a
seamless, blinkfree fashion to support critical loads. Detailing the Islanding Switchgear
application is beyond the scope of this initial Quick Start Guide. If not using third-party
Islanding Switchgear, leave J16 pins open.
#6 - Ethernet
8-pin RJ45 Connector
Ethernet Services
The Stabiliti™Series PCS supports wired Ethernet connectivity. This Ethernet connectivity

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Quick Start Guide Stabiliti™ Series PCS
MAN-00114, Rev D
will eventually support a range of services at a particular Ethernet IP address, each service
accessed through one or more ports. Detailing all of these services is beyond the scope of
this preliminary Quick Start Guide.
NOTE: The 30C3 supports Modbus TCP on port 502, slave ID 255. Presently, two functions
are supported: Function 3, Read Holding Registers; and Function 6, Write Holding Register.
Determining the Ethernet IP Address.
Once the PCS boots, it will request an IP address via DHCP (Dynamic Host Configuration
Protocol). Once an IP address is assigned by the local network, the PCS will display the
assigned IP address on its front panel display. If no IP address is assigned (e.g. if DHCP is
not available), the PCS will display 0.0.0.0 for the IP address (no address assigned). The
prototype PCS does not, presently, provide for retry of DHCP, so a power cycle of the PCS
is required if the 0.0.0.0 IP address is shown on the display. To ensure correct address
assignment, connect the network to the PCS prior to applying power to the unit’s Control
Board.
NOTE: Static IP addresses are not supported. DHCP address assignment by the local network
is required. If DHCP is not available, communicate with the PCS via Modbus RTU.
FTP (File Transfer Protocol)
Ideal Power use only. Supports remote file transfers to/from the PCS. This provides support
for collection of data and fault logs, and also for remote firmware updates. FTP uses ports
20 and 21.
Telnet
Ideal Power use only. Supports interactive application development, diagnostic
troubleshooting, and factory configuration. Telnet uses port 23.
#7 –USB Connector
Standard Mini-B USB connector.
NOTE: Not for customer use.
#8 - Aux 24 V Out
8-Pin Phoenix-style connector
Pin 1 is Isolated 24 V return (ground)
Pin 2 is Aux 24 V out
NOTE: Not for customer use.
#9 - Arc Fault Interface
8-Pin Phoenix-style connector.