ABB PQstorI Manual

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ENERGY STORAGE INVERTERS
PQstorI
Installation, operation and
maintenance instructions

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Table of contents
01 IMPORTANT SAFETY INSTRUCTIONS
02 Getting to know your product
2.1 Product components
2.2 Internal components
2.3 Connection diagram
2.4 LEDs
2.5 Button operation
03 User interface
3.1 Connecting to the Wi-Fi user interface
3.2 Navigating the Wi-Fi user interface
3.3 Status button
3.4 Measurements
3.5 User settings
3.6 Installation settings
3.7 Monitoring
3.8 System settings
3.9 Modbus commands
04 Installation
4.1 Upon reception
4.2 Location
4.3 Identification tag
4.4 Mechanical installation
4.5 Electrical connections
4.6 Addressing the module
4.7 Modbus
05 Commissioning
5.1 Installation check
5.2 Network characteristics
5.3 AIP characteristics
5.4 CT settings
5.5 User settings
5.6 Derating
5.7 Ethernet configuration
5.8 Open ports
5.9 Cyber security disclaimer
5.10 Commissioning report
4
5 - 7
8 - 18
19 - 22
23 - 25

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This instruction manual is intended to
assist users in installing, commissioning,
operating and maintaining the PQstorI
range of products. It is not backward
compatible with previous generations of
ABB inverters.
06 Operation
6.1 Starting and stopping
6.2 Current and voltage measurements
6.3 Checking system faults
6.3 Retrieving manufacturer data
07 Maintenance
7.1 Maintenance intervals
7.2 Check system faults and operating hours
7.3 Cleaning and tightening screws
7.4 Replacing the fan
7.5 Troubleshooting
08 Technical specifications
09 Annex - Commissioning report
9.1 Module identification
9.2 Inspection on site – verification after installation
9.3 Programming
9.4 Testing (with battery)
9.5 Programmed parameters
9.6 Comments
26
27 - 28
29-30
31 - 35

4PQSTORI INSTRUCTION MANUAL
WARNING: Prior to servicing, disconnect the
module from the power supply, wait 20 minutes
to discharge capacitors and check the voltage
between terminals. Never discharge the capacitors
through a short-circuit. Instead, use a current

DANGER: If the system is not properly grounded,
a fault in the module or in a multi-module system
connected in parallel would result in full line
voltage between the chassis and earth, leading
to severe injury or death if both are touched
simultaneously.
WARNING: The neutral current of the device may
be as high as 1.5 times the line current. If a 4-pole
is being used to make connections, make sure all
its poles are suitably rated.
WARNING: The PQstorI is generally operated with a
battery at high voltage levels. Follow safety in-
structions provided by your battery manufacturer.
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01 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
Symbol Interpretation Section
Alternating current/ voltage (AC) 
Direct current/ voltage (DC) 
Grounding 
Phase connection 
DANGER: These safety instructions are intended
for all work on the PQstorI range of products.
Neglecting these instructions will cause physical
injury or death. All electrical installation and
maintenance work inside these products must be
carried out by a qualified electrician.
Do not attempt to work on a powered module.
WARNING: Before manipulating current
transformers, make sure that the secondary is
short-circuited. Never open the secondary of a
loaded current transformer. Make sure to always
wear insulating gloves and eye-protection when
working on electrical installations, and to meet
local safety regulations.
WARNING: This equipment contains capacitors
that are connected between the phase lines and
the earth. A leakage current will flow during normal
operation. Therefore, a good earth connection is
needed and must be connected before supplying
power to the module.
WARNING: The equipment terminals are marked with the following symbols. Please make the
connections accordingly. Refer to relevant sections in this manual for detailed information.

IMPORTANT SAFETY INSTRUCTIONS | GETTING TO KNOW YOUR PRODUCT 5
Item Component Manual section
AC power supply terminal (mandatory) 
Main earth connection point (mandatory) 
CT connection terminal (optional) 
Manual button (start/ stop/ acknowledge fault) 
System LEDs 
Micro-USB connection for firmware update and troubleshooting n/a
DIP switch to set the address of modules operated in parallel 

to connect to the PQconnecT (CAN/ Modbus converter)

DC power supply terminal (mandatory) 
Black start board 

(not functional at present)

Output to control the islanding contactor/ breaker 

Battery Energy Storage System


Connector to be used for future functionalities
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02 Getting to know your product
2.1 Product components
The PQstorI is a product of the Advanced Inverter
Platform (AIP) range. Its external connection
terminals and signalling features are listed in
Table 1 and depicted in Figures 1 and 2.
Figure 3 depicts the internal components of
this product.
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Table 1: External connection terminals and signals on PQstorI
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Figure 1: Back connections
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Figure 2: Front connections
12
1
2
3
3
4
4
5
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
15
14
15

6PQSTORI INSTRUCTION MANUAL
2.2 Internal components
Figure 3 provides a block diagram illustrating the internal components of the PQstorI product.
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Figure 3: Block diagram of main PQstorI components
E
L1 DC+
DC-
L2
L3
N1
N2
24V EXT
24V INT
24 V
DC FUSES
DC RELAYSDC BUSPOWER MODULELCL-FILTERAC RELAYRFI-FILTER
AC
FUSES
BLACK START
CONTROL BOARD
PRECHARGE
CIRCUIT
PRECHARGE
CIRCUIT

GETTING TO KNOW YOUR PRODUCT 7
Preload
circuit
Preload
circuit
Preload
circuit
Preload
circuit
IGBT inverter IGBT inverter
Output
filter
Output
filter
L
N
DC +
DC -
—
Figure 4: Schematic of PQstorI connections
2.3 Connection diagram
Figure 4 provides a schematic overview of exter-
nal connections to the PQstorI range of products.
Connection terminals are detailed in Table 1
above. Mandatory connections (depicted in solid
lines) are necessary for the product to operate.
Non-mandatory connections (dashed lines) en-
hance basic functionalities.
—
Table 2: LED signals in Figure 2
Item Input/ output connections
Red LED on and steady Module is off
Green LED on and steady Module is on or starting up
Red LED blinking Module has encountered
a critical error
Green and red steady Firmware is updating
Yellow LED blinking Wi-Fi traffic
2.4 LEDs
The green, red and yellow LEDs on the front of
the module ( in Figure 2) indicate the status
of the system:
2.5 Button operation
The button on the front of the Module ( in
Figure 2) starts and stops the system, acknowl-
edges faults and resets Wi-Fi user interface
settings:
 Press the button once to start the Module,
stop the Module or acknowledge a system fault
(see Section 3.7.3)
 Hold the button for 2 seconds to reboot
the Module (simulating a power outage)
 Hold the button for 10 seconds to switch ON
or OFF Wi-Fi module
 Hold the button for 15 seconds to reset
the Wi-Fi user interface settings
(see Section 3.8.3)
5
5
4
11 1 1
3
9
8
22
38
9

8PQSTORI INSTRUCTION MANUAL
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03 User interface
Users can interact with the PQstorI range of prod-
ucts through the standard issue Wi-Fi user inter-
face (Section 3.1), or using Modbus commands
(Section 3.2).
3.1 Connecting to the Wi-Fi
user interface
Sign in to the Wi-Fi network emitted by the
PQstorI using a Wi-Fi enabled device such as a
computer, a tablet or a smart phone:
SSID: ABB-AIP-DEVICE [DEVICE IP ADDRESS]
Default password: AIPPASS123
Once connected to the Wi-Fi network, open an
internet browser on your device and navigate to:
http://192.168.3.1/
3.2 Navigating the Wi-Fi user
interface
Figure 5 shows the Wi-Fi user interface. Each
page displays the status button of the system
( 1in Figure 5 - see Section 3.3), gray navigation
buttons for monitoring and operating the system
( in Figure 5), and a table summarizing the
data called by the gray navigation buttons
( in Figure 5).
To enter commands through the Wi-Fi user
interface, click the ‘Edit’ button at the bottom
of a settings page ( in Figure 5), input your
changes in the Value column of the settings
table ( in Figure 6) and click the ‘Save’button
( in Figure 6).
WARNING: The Wi-Fi user interface will not ask for
confirmation. When you click ‘Save’, it will imme-
diately send the command to the Module. Beware
that inappropriate settings could hinder optimal
management of the network.
3.3 Status button
The status button at the top left of the screen
indicates the status of the PQstorI system. Click-
ing on it will turn the module on, turn the module
off or acknowledge a system fault as described
in Table 3.
—
Figure 5: Navigating the Wi-Fi user interface
Item Description
The system is currently off,
click on the status button
to turn it on.
The system is currently on,
click on the status button
to turn it off.
The system has run into a fault.
Click on the status button to
resume its operation.

—
Figure 6: Entering commands through the Wi-Fi
user interface
—
Table 3: Status button in the Wi-Fi user interface
1
4
5
6
2
3

USER INTERFACE 9
3.4 Measurements
3.4.1 Overview
By default, the homepage displays an Overview of network properties and system settings:
Item Description Section
  
 Total harmonic distortion on all line-to-neutral


 RMS value of the fundamental component of all line-to-neutral


Frequency Network frequency
V dc bus Voltage of the DC capacitor in the Module 
 RMS value of all line currents measured at the position of the CT 
Irms (N)  
 Total harmonic distortion on all line currents 
 RMS value of the fundamental component of all line currents 
  
AIP Irms (N) 
P Active power on the network at the location of the CTs 
Q Reactive power on the network at the location of the CTs 
S Apparent power on the network at the location of the CTs 
Power Factor Ratio of true power over apparent power on the network taking into
account the fundamental and harmonic values of the measurements

 Displacement power factor based on only the fundamental values of the measurements 
T control Temperature of the main control board in the monitored module 
T control max Temperature of the hottest main control board in a system of
multiple modules connected in parallel

T IGBT Temperature of the IGBT in the monitored module 
T IGBT max Temperature of the hottest IGBT in a system of modules connected in parallel 
—
Table 4: Overview of electrical network properties and system settings

10 PQSTORI INSTRUCTION MANUAL
To examine the properties of the electrical
network or the system in closer detail, or to
change any of the settings displayed in Over
view, click on the navigation buttons ( in
Figure 5) and refer to the sections below.
3.4.2 Voltages
Vrms reports the RMS value of all line-to-neutral
(4-wire mode) and line-to-line (3-wire mode)
voltages. THDv is the total harmonic distortion
on all line-to-neutral (4-wire mode) and line-to-
line (3-wire mode) voltages. V1 is the RMS value of
the fundamental component of all line-to-neutral
(4-wire mode) and line-to-line (3-wire mode)
voltages. Frequency indicates the network
frequency. Imbalance indicates the imbalance in
the supply voltage. V dc bus refers to the voltage
of the DC capacitor in the module and Vdc bus
max to the highest DC capacitor voltage in a
system of multiple modules connected in parallel.
Spectrum L1-3 tracks the spectrum of the voltage
on each phase line. Each row of the table presents
the voltage on a separate harmonic with spectral
components up to the 49th order expressed in
volts.
3.4.3 Line Currents
(valid only if line CTs are installed)
Irms reports the RMS value of each line current
as measured at the location of the current trans-
formers (CT). Irms (N) reports the RMS value of
the neutral current. THDi is the total harmonic
distortion on all line currents.
Spectrum L1-N tracks the spectrum of the current
on each phase line. Each row of the table presents
the current read by the module on a separate
harmonic in a similar way to the table for the
voltage spectrum.
3.4.4 Device Currents
AIP Irms (L1-3) reports the RMS value of the
current injected into each phase line of the
network and AIP Irms (N) reports the current
injected into the neutral line.
Spectrum L1-N tracks the spectrum of the current
injected into the network. Each row of the table
presents the current on a separate harmonic in a
similar way to the table for voltage spectrum.
3.4.5 Powers (valid only if line CTs are installed)
True power (P), reactive power (Q), apparent
power (S) and the Power Factor module measures
the power on the electrical network at the
location of the current transformers.
3.4.6 Temperatures
The PQstorI measures the temperature of
internal components to prevent damage from
overheating. T control displays the temperature
of the main control board, and T IGBT is the
temperature of the IGBT in the module.
3.5 User settings
3.5.1 Start/ Stop
You can enable your module to automatically
enter and come out of standby mode by
modifying the Value column of the Start/ Stop
page. Standby mode will turn off mechanical
components and power electronics in the module
when they are no longer needed, saving energy
and prolonging the lifespan of the equipment.
Stdby status defines whether automatic standby
mode is activated. Stdby level and Standby hyst
define the load on the module (as a percentage)
at which the module will enter and come out of
standby mode. Stdby del on defines the interval
over which the load must exceed Stdby level to
bring the module out of standby mode. Stdby del
off defines the interval over which the load on the
module must remain below the value defined in
Stdby level for the module to enter standby
mode.
2

USER INTERFACE 11
Enabling Auto start will allow your module to
restart automatically in the event of a power out-
age (or any event that causes the inverter to trip).
Auto st. Del. sets how long the module will re-
main off before it attempts to restart. If Auto
start is disabled, the module will not restart
automatically after a power outage.
3.5.2 Clock
Set the Clock to your local time to calibrate the
time signature of events and faults when they are
recorded in Events Logging (Section 3.7.3).
3.5.3 PQstorI
Define P set point and Q set point to target the
real and reactive power desired on the network.
The PQstorI will inject power onto the network in
efforts to meet these targets.
3.6 Installation settings
3.6.1 Network Characteristics
Set V nominal to the nominal phase-phase
voltage on the grid and set Frequency to either
50 or 60 Hz.
3.6.2 AIP Characteristics
Set the Connection type to 3-wire. I Nominal dis-
plays the current capacity of the PQstorI module.
The nominal power is the rated module power.
Even when operating multiple modules in parallel,
enter the rating for a single module (i.e. 30 kW for
smaller PQstorI units).
3.6.3 CT Settings
PQstorI can measure the line currents in the main
feed of the grid. These signals will be used for
functionalities to be released in the future. When
adopting this option, the CT Settings page of the
Wi-Fi user interface will attribute each sin-
gle-phase lines from the CT to a connection ter-
minal on the module. By default, line 1 connects to
CT input [0], line 2 to CT input [1] and line 3 to CT
input [2]. CT Ratio L1-3 displays the ratio of pri-
mary current on your electrical network to the
secondary current running through the module.
3.6.4 Auto CT Detection
To determine the ratio and position of the CT au-
tomatically, set StartAutoCT to Start. Low bat-
tery voltage can reduce the Auto CT detection ca-
pability of the PQstorI.
3.6.5 Derating
At high altitude or under high temperature,
you can maintain safety standards and the lifes-
pan of your equipment by reducing its power.
Set Derating to the percentage calculated in
Section 5.6.
—
Figure 7: User settings for the PQstorI
—
Figure 8: User settings for the PQstorI

12 PQSTORI INSTRUCTION MANUAL
Observation: Black start functionality is yet not
available in this version of PQstorI.
3.7.4 Event Logging
The PQstorI log events and errors arising during
their operation. The latest event to have occurred
is displayed under Event error ( in Figure 10) and
its time signature ( in Figure 10). To calibrate
this time signature, refer to Section 3.5.4.
To browse through errors logged by the Wi-Fi
user interface:
 Click Edit at the bottom of the table
( in Figure 10)
 Enter an Event ID from 1-200 ( in Figure 11)
 Click Save ( in Figure 11)
 Read the new event and error message
( & in Figure 10)
3.7 Monitoring
3.7.1 Status
Node Status[0] displays the operation status of
the module. The status is described as either
Ready (no action required), Fault (Section 3.7.3)
or not present.
3.7.2 AIP Load
These percentages express the module load with
respect to nominal ratings for the inverter DC bus
bar voltage (Udc), the peak current of the IGBT
modules (Ipeak), the RMS current of the IGBT
modules (Irms) and the temperature of the
IGBT (Temperature).
3.7.3 PQstorI Status
Islanding Status displays shows the grid topol-
ogy that the PQstorI inverter is operating. For ac-
tual version of the PQstorI only operation on grid
connected is available, so that will be status
shown in the AIP Monitoring window. Battery
Voltage is the DC voltage across the battery ter-
minals and Battery Current is DC current per
module. Battery Current is displayed in negative
numbers when charging and positive numbers
when discharging.
Please ignore this status Black Started because
the Black Start functionality is not available.
ESI active power, ESI reactive power and ESI
apparent power report on the power injected
onto the grid by each module of the PQstorI.
—
Figure 9: PQstorI Status summarizes the state of the
battery and operations of the module
—
Figure 10: Error display in the Wi-Fi user interface
—
Figure 11: Browsing through errors with the Wi-Fi
user interface
1
3
5
4
1 2
2
—
Table 5: Overview of events
Event Description
No event No storable event has yet occurred
Energization The power has been switched on
System reset The system controller has been reset
Start request The system has been requested to start
Stop request The system has been requested to stop
Fault (DSP) The DSP controller has reported a fault
Fault (uC) 
Fault cleared A user attempted to clear a fault (by validating the
‘ACK. FAULT’ option on the Wi-Fi user interface)
No more fault The system detects no more faults
Power outage The system detected a power outage

USER INTERFACE 13


installation. Table 6 and Table 7 offer an overview of faults recorded by the DSP controller and

—
Table 6: Overview of events
Name Description Action
Over voltage RMS The RMS value of the supply voltage is higher than
the acceptable maximum value
Disconnect from grid
Over voltage Peak The peak valud of the supply voltage is too high Disconnect from grid
Under voltage RMS The RMS value of the supply voltage is lower than
the acceptable minimum value
Disconnect from grid
Loss of phase The system detected a loss of supply on at least one phase Disconnect from grid
Wrong phase rotation The module is fed by a supply system, which has
the wrong phase rotation
Inverter trips/
reset required
Unbalanced supply The supply imbalance is out of range Disconnect from grid
Island detected Unit was grid connected initially, but has detected it is currently
in island while island operation is forbidden
Disconnect from grid
Bad CT connection The automatic CT detection procedure encountered a problem
during the identification process
Continue
Over frequency The system detected that the network frequency above limit Disconnect from grid
Unstable mains
frequency
The network frequency is fluctuating too fast Disconnect from grid
No synchronization The system cannot synchronize with the network Disconnect from grid
DC over voltage (SW) The DC software over voltage protection was triggered Inverter trips/
reset required
DC over voltage (HW) The DC hardware over voltage protection was triggered Inverter trips/
reset required
DC under voltage (SW) The DC software under-voltage protection was triggered Inverter trips/
reset required
Preload problem The DC capacitors could not be preloaded. The voltage increase
on the DC capacitors during the preload phase is not high enough
Inverter trips/
reset required
DC Top over voltage The DC over-voltage protection of the capacitors in the
positive stack was triggered
Inverter trips/
reset required
DC Bot over voltage The DC over-voltage protection of the capacitors in the
negative stack was triggered
Inverter trips/
reset required
Over current peak (SW) The software peak current protection was triggered Inverter trips/
reset required
Over current RMS The system detected an RMS over-current Inverter trips/
reset required
Global battery voltage
error
The battery voltage exceeds the maximum DC voltage of
PQstorI, the battery connections (+/-) are inverted or the AC voltage
is high and the battery voltage (SoC) is too low, preventing the DC
contactor from closing
Inverter trips/
reset required
Ground fault  Inverter trips/
reset required
IGBT temporary The IGBT modules report a transient error that could be cleared by the
system, possibly due to peak over-current or a control voltage too low
for the IGBT drivers
Inverter trips/
reset required
IGBT permanent The IGBT modules report an error that cannot be cleared by the system,
possibly due to peak over-current or a control voltage too low for the
IGBT drivers
Inverter trips/
reset required
IGBT check cooling Software reported an IGBT over-temperature Inverter trips/
reset required
SPI error The DSP received no response from the SPI port Inverter trips/
reset required
Mismatch between
units
Modules in a multiple module system have different settings

Inverter trips/
reset required
Under frequency The system detected that the network frequency under limit Disconnect from grid
Bad sequence The DSP detected an inadequate behavior in the sequence Inverter trips/
reset required
Bad ratings Inconsistent set of commissioning parameters Inverter trips/
reset required
Emergency stop Emergency stop input has been activated Inverter trips/
NO reset required

14 PQSTORI INSTRUCTION MANUAL
To solve technical issues,
contact your ABB service provider at
[e-mail].
As listed in the Table 6 and 7 there are 5 different
trip modes in the case of an error.
1. Continue
2. Disconnect from grid
3. Inverter trips/ reset required
4. Inverter trips after multiple tries/ reset
required
5. Inverter trips/ no reset required
For the errors identified as causing “Disconnec-
tion from grid”, the PQstorI islanding dry contact
will be driven HIGH for a preset amount of time
(default is 6 sec). This will cause the main BESS
breaker to OPEN. When the error has cleared, the
PQstorI will be in the position to power-up again
once the main breaker has closed. This requires
that the PQstorI has had “auto-restart” enabled.
In the case of a multiple module installations, due
to the fact that the islanding dry contact is active
high, it is required to connect all islanding dry
contacts terminals in parallel.
For the errors identified as causing “Inverter
trips/ no reset required”, the emergency stop
trips the Inverter but does not require a reset.
—
Table 7: Faults reported by the microcontroller
Name Description Action
CAN bus off CAN is in Bus Off mode Continue
Ctrl over temperature Over-temperature in the main controller board Inverter trips/ reset required
Real time clock
problem
Date or time information is corrupted Continue
No more unit on CAN 
while it did before
Continue
Emergency stop External protection triggered an emergency stop

Disconnect from grid
Preload time-out Not existing any more Inverter trips/ reset required
Power supply fault Occurs each time the control board is de-energized or if for
internal reason the board is not energized properly
Inverter trips/ reset required
Internal uC fault Internal system error Inverter trips/ reset required
 Internal system error Inverter trips/ reset required
DSP timeout 
a start/stop request command was sent to it
Inverter trips/ reset required
Heart beat timeout AIP has stopped upon receiving no heartbeat update for

be enabled as a heartbeat signal is first written by an external

Disconnect from grid
Corrupted uC code Internal system error Inverter trips/ reset required
Corrupted DSP code Internal system error Inverter trips/ reset required
Different firmware Different firmwares between units connected in parallel Inverter trips/ reset required
DSP watchdog Internal system error Inverter trips/ reset required
SPI time-out Internal system error Inverter trips/ reset required
Several units same ID Two or more modules connected in parallel have
the same DIP switch address
Inverter trips/ reset required
An emergency stop can be the result of either:
 A physical action of pressing an E-stop button
 Error identified by the NS protection relay
 Other safety related functions
(as required as part of the installation)
This will trip the inverters until the error has been
cleared or E-Stop has been released. If “auto-re-
start” has been enabled, the system will start
producing power again. Otherwise the start com-
mand will need to be initiated. By default, the
“Auto-restart” function is disabled. It will need to
be enabled during commissioning.
 Internal system errors are most likely due to
faulty hardware. Before replacing components,
please contact your ABB service provider
 ‘IGBT check cooling’ signals that the system
stopped because it over-heated. Check the cool-
ing fans and environmental conditions
(e.g. air conditioning system). After solving the
problem, acknowledge the fault and reset the
system to resume operation
 Transient faults generally raise no problem for
the proper operation of the system. When a
fault becomes ‘critical’, action must be taken
If several grid events occur without having the
inverter running normally for at least 30s, after 5
times of retries, no restart is possible until the
event is permanently cleared.

USER INTERFACE 15
5
Critical errors will be highlighted by the word
‘Critical’ in the ‘Event logging’ window. When
encountered, they will cause the status button
to turn yellow, requiring the user to acknowledge
the fault by either clicking on the status button of
the Wi-Fi user interface (Section 8) or pushing the
manual button on the front panel of the module
( in Figure 2) before the system resumes
operation.
3.7.5 Operation
AIP operation and Fan operation track the hours
over which the equipment has run in view of
maintenance operations described in Section 7.1.
3.8 System settings
3.8.1 Manufacturer Settings
AIP Size displays the current capacity of your
module and V maximum the maximum line
voltage that it tolerates.
3.8.2 About AIP
When troubleshooting, ABB may ask you for the
hardware details of your product. AIP function
indicates the model of the product in the PQStorI
range. AIP Size displays its current capacity. AIP
Segment, Serial number, Article Number and
Article Group are ABB product references.
uC version[0], DSP version[0] and Wi-Fi version
describe the version of the microcontroller, the
digital signal processor and the Wi-Fi module in
the module.
When communicating with an ABB representative,
please provide the data shown in About AIP.
3.8.3 User
Personalizing the Wi-Fi connection and setting up
separate user profiles offer additional layers of
cybersecurity to your equipment.
The User page allows system administrators
to set the Hostname, Realm, IP Address and
Network Mask of the Wi-Fi network emitted by
the module to connect to the user interface. Set
the Wi-Fi mode to Access Point to connect
directly to the module and Station to connect
through a router.
—
Figure 12: User settings of the Wi-Fi user interface
SSID modifies the name of the network displayed
to nearby computers and mobile devices. For
security reasons, we recommend changing the
Wi-Fi Password. If you lose your new password,
reset the Wi-Fi user interface settings by holding
the button on the front panel of the module for 10
seconds (Section 2.5).
UI Passwords allow system administrators to
tailor rights for different users. Admin can see
and modify all pages in the Wi-Fi user interface.
User can see everything but only modify PQstorI
settings. Guest can only see pages but cannot
modify them. By default, there is no password
and all users have Admin rights upon connecting
to the Wi-Fi network.
We recommend the admin to protect the inverter
with suitable password during commissioning.
For an additional layer of cybersecurity, tick
SSL/TLS Secured connections and copy the
corresponding fields in the CA, private key and
certificate. Once it is done , save Settings, restart
Wi-Fi connection. Then the AIP can be accessed
on a secured encrypted connection as shown by
the https in the URL
Refresh Settings will cancel user changes.
Restore Factory Settings will revert Wi-Fi user
settings to their default value. Save Settings will
incorporate changes made on the current page.
Restart Wi-Fi will reboot the Wi-Fi user interface.
—
Figure 12: URL to access the Wi-Fi settings

16 PQSTORI INSTRUCTION MANUAL
Modbus connection. The tables in this section
highlight key Modbus commands used to install
and run the PQstorI.
—
NOTE: All parameters with an address starting
in 3 are “Read Only”. Addresses starting in 4 point
to “Read & Write” parameters.
3.9.1 Measurements
Table 8 lists Modbus commands to check the
electrical network properties and system
settings described in Section 3.1.4.
—
Table 8: Modbus commands for PQstorI measurements
Name Address Unit Type Register
length
Range Description
Min. Max.
  AFloat    The rms value of the inverter

  AFloat    The rms value of the inverter

  AFloat    The rms value of the inverter

  VFloat    The rms voltage measured



  VFloat    The rms voltage measured



  VFloat    The rms voltage measured



Frequency  Hz Float   Frequency of the supply system
Temperature
Control
 °C/°F Float   Temperature of the
main controller board
Ma x Temp.  °C/°F Float   Highest temperature observed
on control board amongst
all units connected in parallel
Temperature
IGBT
 °C/°F Float   Highest temperature observed
on all phases of the IGBT
Max T IGBT  °C/°F Float   Highest temperature observed
on IGBT amongst all units
connected in parallel
3.8.4 Logout
Logout will terminate the connection between
the Wi-Fi user interface and your computer or
mobile device. The interface also logs out
automatically upon closing the browser.
3.9 Modbus commands
An external controller (e.g. an Energy
Management System) can be used to operate
the PQstorI remotely, provided that it can
communicate with the PQstorI over Modbus.
Section 4.8 provides guidance on cabling the

USER INTERFACE 17
Name Address Unit Type Register
length
Range Description
Min. Max.
ESI Active Power  kW Float   Inverter active power
ESI Reactive Power  kvar Float   Inverter active power
ESI Apparent Power  kVA Float   Inverter active power
Name Address Unit Type Register
length
Range Description
Min. Max.
  -Word    
Reports the status of the unit
AIP State  -Byte    Status of the unit
Output Status  -Byte    Reporting the status

(For instance if DC contact

Current
UC Error
 -Dword    The current error was detected
by the UC. Please refer to the
description of "CurrentUCError" for
the list of possible UC errors,
corresponding bit is set in register
Current
DSP Error
 -Dword    The current error was detected
by the DSP. Please refer to the
description of"CurrentDSPError" for
the list of possible DSP errors
Islanding
Status
 -Dword    

in grid-connected mode
(Available in the future)
Black Started  -Dword    
black start condition; once it
has reached the "running"

(Available in the future)
Fault Stop
Error
 -Dword    Stores the latest error code that has
prevented the unit from restarting. If

detected by DSP and decoding must
be taken from "CurrentDSPError", if
MSBit not set, then error was detected
by UC and decoding must be taken
from "CurrentUCError"
3.9.2 System monitoring
Table 9 lists Modbus commands to monitor the state of the PQstorI system. These functions are
described further in Sections 3.7.1 and 3.7.3.
—
Table 9: Modbus commands to monitor the PQstorI
3.9.3 Power monitoring
Table 10 lists Modbus commands to monitor the power on the network and injected by the PQstorI.
These function are described further in Sections 3.4.5 and 3.7.3.
—
Table 10: Modbus commands to monitor the power injected by the PQstorI onto the grid

18 PQSTORI INSTRUCTION MANUAL
3.9.4 Battery monitoring
Table 11 lists Modbus commands to monitor the energy storage system operated by the PQstorI. These
function are detailed further in Section 3.7.3.
—
NOTE: For grid code related parameters, please refer to the PQstorI Grid Code Functionality Manual
and PQstorI Modbus table.
3.9.5 PQstorI commands
Table 12 lists Modbus commands to operate the PQstorI. These functions are described in further detail
in Section 3.5.5.
—
Table 11: Modbus commands to monitor the state of the battery
—
Table 12: Modbus commands for operating the PQstorI
Name Address Unit Type Register
length
Range Description
Min. Max.
Battery
Voltage
 VFloat   DC voltage (V) on DC output of

Battery
Current
 AFloat   DC current (A) on DC output of one

positive when discharging
the battery
Udc (Inverter
DC voltage)
 VFloat    The DC voltage present on
the inverter DC bus
Name Address Unit Type Register
length
Range Description
Min. Max.
Start request  -Word    
provided no error is
currently present
Stop request  -Word    
prevent if from restarting as soon
as the error has disappeared
Reset fault  -Word    
fault that has caused the unit stop
Set P  kW Float   Active power (kW) to be
injected into the grid (when in
current source mode). Positive
target means discharging
Set Q  kvar Float   Reactive power (kvar) to be
injected into the grid
(when positive, inverter
behaves like a capacitor)
Heart beat
timeout
 -Word    Heart beat signal: Once modbus
client has set it to non-zero value,

at least otherwise the inverter
will stop and generate a
heartbeat fault. By default
heartbeat is not active

USER INTERFACE | INSTALLATION 19
—
Table 13: Ambient conditions for operation and storage
Name Storage Operation
Altitude 

Temperature  (a)
Relative humidity  
  (b)
 (c)
—
04 Installation
4.1 Upon reception
Before installing the PQstorI make sure that:
 The packaging used for delivery is in
good condition
 There are no signs of transportation damage
 Your package also contains a communication
cable to operate modules in parallel
Notify any loss or damage to these items
immediately to your ABB representative.
4.2 Location
Make sure that you transport, store and operate
the product within the range of temperature,
(a)Up to 50°C (122°F) with auto-derating
(b)Locations with normal levels of contaminants, experienced in urban areas with scattered industrial
activity or heavy traffic.
(c)Locations with no special precautions taken to minimize the presence of sand or dust.
The product weighs approximately 20 kilograms and can be lifted by hand by two people. It must be
installed indoors under IP20 standard protection class when fitted in cabinets. Its operation emits
below 61 dBA of noise at one meter of the module.
humidity and environmental contaminants set
out in Table 13. Install the module in a location
free of conductive dust that may damage the
equipment.
4.3 Identification tag
Each PQstorI is fitted with identification
nameplates on its front panel detailing the
product model, nominal voltage range, network
frequency, serial number and ABB internal article
code.

20 PQSTORI INSTRUCTION MANUAL
—
Figure 14: Mounting modules on the wall
4.4 Mechanical installation
The PQstorI range of products can be installed either in a cabinet or mounted on a wall as illustrated
in Figure 14.
Fix the mounting kit by tightening 12 screws
to the side panels of the module and screw the
mounting kit to a wall that can support over 20
kilograms of electrical equipment. You can order
wall installation kits from your ABB supplier.
For cabinet assembly the clearances below must
be followed:
 Front of the inverter: minimum of 600mm
(radius of the front door of the cabinet/
minimum corridor width for passage of
personnel)
 Rear: 200mm if no forced air flow in place
(horizontal air flow)
 Air flow requirement: 266m³/h per unit needed
when using forced airflow (vertical airflow)
4.5 Electrical connections
WARNING: The PQstorI range of products can tol-
erate network voltages of up to 415 V for a 3-wire
configuration. Never connect these products to a
network that will sustain extended periods of

Only copper cables rated for 75oC or above are
allowed to be used for the power cabling of the
inverter. The maximum cable size that can fit
into these terminals is 25 mm2.
The wiring methods for electrical installation of
the inverter shall be in accordance with the Na-
tional Electrical Code and with ANSI/NFPA70.
4.5.1 Earth connection
Ground the PQstorI connecting an earth cable
with an appropriate cross-section (minimum
10 mm2) to the ground terminal (PE) on the back
of the module (Figure 15). Tighten its screw to a
torque of 3 - 5 N.m.
—
Figure 15: Earth, AC and DC power connection to
the PQstorI
4.5.2 Power supply (AC)
Connect the module to an AC power supply by
screwing power cables of an appropriate
cross-section to each phase-line terminal on its
back panel (Figure 15). Tighten each screw to a

Make sure that the voltage phase rotation at the
power supply remains clockwise (L1 (R, U) -> L2
(Y, V) -> L3 (B, W) -> L1 (R, U)).
WARNING: For safety reasons, when using a
phase rotation meter, the phase rotation must be
measured at the upstream protection level and
not in the module itself. The internal power con-
nections of the PQstorI inverter are isolated from
the earthing. Thus, it is installer's responsibility
to ensure that the AC supply system is earthed
and an earth cable must be connected in the in-
verter's earth terminal
DC
+-
NNL3 L2 L1 PE