Ingeteam INGECON SUN STORAGE 1Play Quick start guide

Ingeteam Power Technology S. A.
Technical Guide
INGECON SUN STORAGE 1PLAY
Frequently Asked Questions FAQ Guide
ABH2010IMC01_C

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Table of contents
1Introduction and purpose.............................................................................................................................. 5
2Definitions..................................................................................................................................................... 6
2.1 ISS 1Play Internal Schema and Connections...................................................................................... 6
2.2 Electric Power Systems (AC) .............................................................................................................. 9
2.2.1 Number of Phases........................................................................................................................... 9
2.2.2 Earthing or Grounding System ........................................................................................................ 9
3Ingecon Sun Storage 1Play Installation ..................................................................................................... 12
3.1 ISS 1Play/Inverter.............................................................................................................................. 12
3.1.1 Is it possible to connect several ISS 1Play units in parallel?......................................................... 12
3.1.2 Is it possible to connect both, grid and a genset, to the grid/genset input? Could the ISS 1Play
manage this connection in a grid fault?...................................................................................................... 12
3.1.3 In a stand-alone system, could the ISS 1Play work with other Ingeteam PV inverters?............... 12
3.1.4 In a grid connection system, could the ISS 1Play work with other Ingeteam inverters?............... 12
3.1.5 In a dual pitched roof installation, is it worthy to install two ISS 1Play to obtain the maximum
efficiency?................................................................................................................................................... 12
3.1.6 In stand-alone operation mode, how is it possible to have grid alarms? (Alarms: 0x0002; 0x0004;
0x0006)....................................................................................................................................................... 13
3.2 Battery................................................................................................................................................ 14
3.2.1 As the minimum operation voltage is 40Vdc, is it possible to connect a 40Vdc battery? ............. 14
3.2.2 If we have a battery voltage higher than the specified in the storage system voltage range, can
we connect it to the ISS 1Play?.................................................................................................................. 14
3.2.3 I have an AGM battery, how should I configure it?........................................................................ 14
3.2.4 SOC parameter has suddenly jumped to 100%, is it possible? .................................................... 14
3.2.5 While taking energy from the batteries, which are the main power limitations in the ISS 1Play?. 15
3.2.6 Can inverter measure mid-point voltage of battery bank?............................................................. 16
3.2.7 I have a Lithium battery, how should I configure it? ...................................................................... 16
3.3 PV modules ....................................................................................................................................... 17
3.3.1 If the available energy of PV modules is greater than the load’s need, where is extra energy
going? 17
3.3.2 The ISS 1Play 6TL has a PV array max power of 10 kWp and an output power of 6 kW. What
happens to the 4 kW that exceeds? Is it used to power the batteries?...................................................... 17
3.3.3 Does the ISS 1Play have any surge arrestors to protect from PV over-voltages?........................ 17
3.3.4 In a grid connection system, how is the extra PV inverter controlled?.......................................... 18
3.3.5 In a stand-alone system, how is the extra PV inverter controlled?................................................ 18
3.4 AC Grid / Generator........................................................................................................................... 19
3.4.1 Which types of grid are allowed?................................................................................................... 19

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3.4.2 Does the ISS 1Play have any surge arrestors to protect from AC over-voltages? ....................... 19
3.4.3 In Stand Alone systems, how does the ISS 1Play starts up automatically a Genset?.................. 19
3.5 Loads................................................................................................................................................. 20
3.5.1 Having grid and loads of 10kW, is it possible to feed them with an ISS 1Play? How the installation
should be?.................................................................................................................................................. 20
3.6 Communications................................................................................................................................ 21
3.6.1 Is Bluetooth available in ISS 1Play?.............................................................................................. 21
3.6.2 When having an alarm in the ISS 1Play, is it possible to receive notifications? ........................... 21
3.6.3 Is it possible to control or monitor the INGECON SUN EMS Board with the Ingecon Sun
Manager? ................................................................................................................................................... 21
3.6.4 I have a router connected to an inverter which has an Ethernet Card (AAX0004 or AAX0054), can
I remotely access to the inverter through that router? ............................................................................... 21
3.7 Display, data monitoring and datalogger........................................................................................... 21
3.7.1 How long can the ISS 1Play store data using the Datalogger?..................................................... 21
3.7.2 Measured PV voltage is over 0Vdc at night or even without PV modules’ connection, how is it
possible? .................................................................................................................................................... 22
3.7.3 Is it possible to set the SOC strategy parameters using the display?........................................... 22
3.7.4 Is there a procedure to check the status of digital inputs or outputs (I/O)?................................... 22
4Operation mode.......................................................................................................................................... 23
4.1 General.............................................................................................................................................. 23
4.1.1 Which parameter is used to inject extra PV power to the grid?..................................................... 23
4.2 Stand-alone ....................................................................................................................................... 23
4.2.1 In stand-alone mode, is it possible to set ISS 1 Play parameters to charge batteries only with PV
energy? Energy from genset will not be used............................................................................................ 23
4.3 Backup............................................................................................................................................... 23
4.3.1 In backup mode, is it possible to inject extra power (from PV modules extra energy) to grid?..... 23
4.4 Grid support....................................................................................................................................... 23
4.4.1 In Grid support mode, what parameters are necessary configure? .............................................. 23
5Configuration.............................................................................................................................................. 25
5.1 Battery................................................................................................................................................ 25
5.1.1 In a Lead-Acid battery configuration, how shall be calculated the V NOMINAL value?................ 25
5.1.2 In a Lead-Acid battery configuration, how shall be calculated the CAPACITY (C20H) and
CAPACITY (C5H) values? ......................................................................................................................... 25
5.1.3 In a Lead-Acid battery configuration, how shall be calculated I CHARGE and I DISCHARGE
values?25
5.2 Inverter............................................................................................................................................... 26
5.2.1 How should be configured the nominal voltage and frequency values? ....................................... 26

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5.3 Grid/Genset ....................................................................................................................................... 26
5.3.1 When is the Manual connection function used?............................................................................ 26
5.4 Digital I/O........................................................................................................................................... 26
5.4.1 In the ISS 1Play, how are digital outputs used?............................................................................ 26
5.4.2 In the ISS 1Play, how are digital inputs used?.............................................................................. 26
6More Options.............................................................................................................................................. 28
6.1 Emergency charge from an external PV Inverter .............................................................................. 28
6.1.1 There is no grid/genset but I have an additional PV inverter, is it possible to charge the batteries
with the ISS 1Play from the PV inverter?................................................................................................... 28
6.2 Manual equalization........................................................................................................................... 28
6.2.1 I have a lead-acid battery and it has decreased its capacity, is there any option to recover some
capacity? .................................................................................................................................................... 28
6.3 Start/Stop Lithium Battery.................................................................................................................. 29
6.3.1 When do I use this functionality?................................................................................................... 29
6.4 Test Fans........................................................................................................................................... 29
6.4.1 Is it possible to do a fan test with the ISS 1Play?.......................................................................... 29

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1 Introduction and purpose
The present document is intended to be a guide to solve the most frequently asked questions that will appear
to both, user and installer, during INGECON SUN STORAGE 1Play (hereinafter, ISS 1Play)start up, operation
and maintenance actions.
As the device continues its development and continuous improvement, new questions will be added in order
to keep it updated.
The most common doubts and problems have been summarized here and classified depending on its origin.

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2 Definitions
2.1 ISS 1Play Internal Schema and Connections
Figure 1: ISS 1Play Schema
A. Storage system: Connection point between the DC/DC converter and the batteries. The storage
system is compound of a battery bank; the batteries in the bank can be of Lead-Acid or Li-ion.
Figure 2: Storage system / battery input

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B. PV input: Coupling point between the PV modules and the DC-bus.
Figure 3: PV input
D. Consumption grid relay: Relays used to isolate the inverter from the grid or the loads. When closed,
these relays connect the inverter to the loads.
E. Grid or auxiliary generator relay: Relays used to disconnect the grid from the ISS 1Play and the loads.
When closed, these relays create a bypass joining grid and loads.
F. Auxiliary grid/genset input: Connection point between the ISS 1Play and the grid.
It is very important to know the configuration of the installation where the ISS 1Play will be connected
to, including the electric power system type. More information about them is included in 2.2.
Figure 4: Grid / Genset input
G. Consumption grid output: Coupling point between the ISS 1Play and the loads.
As in the previous point, it is very important to know the type of the installation that will join the loads
to the ISS 1Play. Further information is shown in 2.2.

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Figure 5: Loads input

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2.2 Electric Power Systems (AC)
2.2.1 Number of Phases
Single phase electric power system: power system used for distribution of energy where there are a line
and a neutral (in some systems earth acts as the neutral). The line carries the current which varies its
amplitude in a 50/60 Hz frequency, feeds the load and finally returns to the source by the neutral. The
available values for the ISS 1Play are between 200 and 250 Volts, they should fit to the grid depending on
each country’s standard too.
A simple single phase system is included in the figure below:
Figure 6: Single phase system
Three phase electric power system: Despite the fact that in the past there were sold some ISS 1PLAY to
create a three phase power system, currently this solution has been discontinued.
2.2.2 Earthing or Grounding System
Earthing or grounding specific parts of an installation is common practice done in the low voltage distribution
networks for safety and functional purposes. The safety ones are basically to protect a person against electric
shocks.
There are several ways to do it, but International standard IEC 60364 distinguishes three families of earthing
arrangements, using the two-letter codes TN, TT, and IT.
The first letter indicates the connection between earth and the power-supply equipment (generator or
transformer):
"T" —Direct connection of a point with earth (Latin: terra)
"I" —No point is connected with earth (isolation), except perhaps through a high impedance.
The second letter indicates the connection between earth or network and the electrical device being supplied:
"T" —Earth connection is by a local direct connection to earth (Latin: terra), usually via a ground rod.
"N" —Earth connection is supplied by the electricity supply Network, either as a separate protective
earth (PE) conductor or combined with the neutral conductor.
The network system used in your installation must be identified because the ISS 1Play can only work towards
some network types.

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TT Network
In a TT system, there is a connection to the earth in the grid distributor´s transformer, usually the star point of
a three-phase system. However, it is provided a connection to the local earth electrode. As the fault loop
impedance is usually high, those systems should always have a Residual Current Detector.
Figure 7: TT system
TN Network
In a TN system, as in TT systems, there is a connection in the grid generator´s transformer to Earth. However,
the bodies of the electrical devices are connected to a so called Protective Earth wire. This wire is related to
the Neutral wire, but depending on the connection point, three variants are distinguished:
TN-C Network
A combined conductor fulfills the functions of both PE and Neutral wires. This combined wire is called PEN.
TN-S Network
PE and N are separate wires from the distribution point.
TN-C-S Network
PE and N come combined from the distribution point, but they are separated (usually at the building
distribution point) before getting to the consumer.

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IT Network
In an IT network, there is no connection to earth at the distribution point, or there is a connection with very
high impedance. So, it is isolated.
The bodies of the electrical devices are connected to the Local Earth Electrode.

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3 Ingecon Sun Storage 1Play Installation
3.1 ISS 1Play/Inverter
3.1.1 Is it possible to connect several ISS 1Play units in parallel?
It is not possible; neither in stand-alone nor grid-tied mode, installing more than one ISS 1Play connected
sharing the battery bank.
3.1.2 Is it possible to connect both, grid and a genset, to the grid/genset input? Could the
ISS 1Play manage this connection in a grid fault?
No, it is not possible to connect both, a genset and grid, to the grid/genset input. ISS 1Play has only an input
to connect grid or genset (F input / J55 connector).
Figure 8: Grid or genset input (J55) in the ISS 1Play schema
In cases of events such as grid fault, the management of the connections must be carried out externally. Take
into account that the type of grid must be changed in the inverter configuration as well.
3.1.3 In a stand-alone system, could the ISS 1Play work with other Ingeteam PV inverters?
Yes, it could be possible in a 2 to 1 power ratio, meaning that the sum of added PV inverters will not exceed
the double of the ISS 1Play stated power.
Battery should be sized according to the autonomy time requirement, but we recommend a minimum size of:
C10 (Ah) ≥ 5x PPV /VBATT. Where PPV (W) is the photovoltaic power installed and VBATT (V) is the nominal
voltage of the battery bank.
For further information it is highly recommended to read the “ISS 1Play Installations Technical Guide”.
3.1.4 In a grid connection system, could the ISS 1Play work with other Ingeteam inverters?
Yes, it could be possible without power limitations.
For further information it is highly recommended to read the “ISS 1Play Installations Technical Guide”.
3.1.5 In a dual pitched roof installation, is it worthy to install two ISS 1Play to obtain the
maximum efficiency?
Having a split solar installation in a dual-pitched orientation obviously leads to some little energy loses
because of that particular situation.

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Figure 9: Dual-pitched installation
Connecting the whole PV installation to the ISS 1Play will decrease the efficiency of the whole system, but
anyway this solution will be more inexpensive rather than installing two ISS 1Play or an ISS 1Play and an
additional Sun 1Play. The additional cost of a second inverter will not be taken by the power gain benefits.
3.1.6 In stand-alone operation mode, how is it possible to have grid alarms? (Alarms:
0x0002; 0x0004; 0x0006)
Stand-alone operation mode is intended to work completely away from grid, so grid alarms like 0x0002 (grid
frequency out of range), 0x0004 (grid voltage out of range) or 0x0006 (grid frequency and voltage out of
range) would have no meaning.
This is completely true while working with batteries on a higher SOC than SOCmin. When SOC reaches the
value of SOCmin, the ISS 1Play will automatically start looking for a genset to take energy from it, during this
process, if no genset is found, a grid related alarm will appear.
In case that there were no genset and a lower SOC than SOCmin, this alarm is completely normal and the
device will not stop working while SOC>SOCdescx. It is important to know that not every alarm will stop the
ISS 1Play.

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3.2 Battery
3.2.1 As the minimum operation voltage is 40Vdc, is it possible to connect a 40Vdc battery?
It is highly not recommended due to the fact that during their discharge cycle batteries decrease their voltage,
in case that the voltage was under 40Vdc the device will stop working. In conclusion, the battery bank shall be
into proper voltage ranges (extended operating voltage, see “Installation and Operation Manual”).
The choice of the battery bank is one of the most important tasks to achieve a correct performance from the
ISS 1Play. Ingeteam’s device has been designed to work with a minimum battery voltage of 40 volts, which
means that if the battery during its discharging cycle goes under that voltage, the device will stop working.
It is completely necessary to set the battery bank properly to avoid the possibility of an under-40 volts
situation. In Lead-Acid batteries for example the minimum nominal voltage needed will be 48Vdc. This value
takes in consideration that the battery during its discharge cycle could reach the limit depending on the depth
of the discharge.
3.2.2 If we have a battery voltage higher than the specified in the storage system voltage
range, can we connect it to the ISS 1Play?
There are 2 different battery voltage ranges depending on whether the PV Input is being used or not. In any
case the battery voltage range could exceed those ranges.
3.2.3 I have an AGM battery, how should I configure it?
AGM batteries are fully compatible with lead-acid configuration as they are a type of them. Unlike common
lead-acid batteries that have their electrolyte flowing free inside the battery, the electrolyte in these AGM
(Absorbent Glass Mat) batteries is held in fine glass mats, where its name comes from.
AGM batteries usually do not include an equalization value in their datasheet due to the fact that they are
sealed, not allowing that phase. Only absorption and floating voltage values are considered.
Note: It is very important to verify, as done with all Lead-Acid batteries, that all the configuration values have
been included correctly.
3.2.4 SOC parameter has suddenly jumped to 100%, is it possible?
SOC parameter is used to show the battery remaining charge. SOC value is estimated for Lead-Acid batteries
using many factors, the most important are the discharge current capacity for 20 and 5 hours (C20h and C5h).
The algorithm used to calculate the SOC value may produce jumps in the value due to its own computation
process, so it could be perfectly normal seeing those big steps for example in EMS Tools graphs as shown in
the next figure:

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Figure 10: SOC step
During the SOC calculation process, the SOC parameter is set to certain specific values at two points:
1. 85%, when the charging current in the step 2 (absorption) decreases until the 1/3 of the configured
charging current.
2. 100%, when the charging current in the step 2 (absorption) decreases to 1/8 of the configured
charging current, in that instant the battery enters the floating phase, the charge process is finished
and the SOC value is set to 100%.
Figure 11: SOC during battery charge
3.2.5 While taking energy from the batteries, which are the main power limitations in the
ISS 1Play?
To feed the loads it is important to take in consideration the current that the battery bank can provide, if it is
limited to only deliver 30Amps and it has a voltage of 100Vdc, the total Power will be limited to 3kW from the
bank.

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Additionally, bear in mind that the Hardware of the ISS 1Play is limited on the DC side to take a maximum
current of 50 A from batteries and on the AC side is limited to the Output (AC) Rated Power.
3.2.6 Can inverter measure mid-point voltage of battery bank?
The inverter doesn’t measure in a middle of the chain. The inverter measures the total voltage of the battery
bank. So, the charge process of the lead-acid batteries (absorption, flotation and equalization) is controlled
with the total voltage of the chain.
3.2.7 I have a Lithium battery, how should I configure it?
Lithium-ion batteries suitable for operation with the INGECON SUN STORAGE 1Play have their own
advanced battery management, usually programmed by the manufacturer and built into the batteries (BMS).
Ingeteam cannot influence in any way the operating mode of this advanced external battery management.
To configure and use the lithium battery, first it must be fully compatible with the INGECON SUN STORAGE
1Pay. For more information on compatible lithium batteries, refer to the "List of lithium batteries approved for
INGECON SUN STORAGE 1Play" available on the Ingeteam website.
If the battery model is not listed consult Ingeteam.

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3.3 PV modules
3.3.1 If the available energy of PV modules is greater than the load’s need, where is extra
energy going?
Even if the ISS 1Play is configured to not injecting to grid, it will not be any excess of energy because the
inverter inside the ISS 1Play will automatically regulate itself changing the MPPT configuration and just taking
the needed energy from PV modules.
It is important to know that this situation will only occur when batteries are fully charged, if they are not, extra
energy will charge them in any strategy.
This is done by moving the operating point from the MPP point, which is the maximum available energy from
modules, as it is shown in the next diagram:
Figure 12: MPP regulation
3.3.2 The ISS 1Play 6TL has a PV array max power of 10 kWp and an output power of 6 kW.
What happens to the 4 kW that exceeds? Is it used to power the batteries?
Yes, extra energy from PV modules is used to charge the battery bank. When the battery bank has reached
the 100% charge level, the inverter will regulate its working mode as shown in 3.3.1.
3.3.3 Does the ISS 1Play have any surge arrestors to protect from PV over-voltages?
Yes, it does for protecting the ISS 1Play and due to the fact that most of the standards demand them as
compulsory.

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3.3.4 In a grid connection system, how is the extra PV inverter controlled?
First of all it shall be checked that the PV inverter is an Ingeteam device, as shown in 3.1.3 only Ingeteam
inverters can be used to work in a common strategy and communication with the ISS 1Play.
In that case we will need an INGECON SUN EMS Board + wattmeter.
We will be able to control the full installation with the INGECON SUN EMS Board (installed into the Storage
1Play) and the wattmeter connected to the grid. The schema of the whole system will be as the one shown
below:
Figure 13: Grid connection system
The extra PV inverter will be considered as additional PV in the system and will supply only the needed power
demanded from the loads (Battery or consumption). This information will be sent to the PV inverter from the
EMS Board.
For further information it is highly recommended to read the “ISS 1Play Installations Technical Guide”.
3.3.5 In a stand-alone system, how is the extra PV inverter controlled?
In a stand-alone system the extra PV power that will come from other Ingeteam’s inverters, as shown in 3.1.3,
will be automatically controlled by the ISS 1Play itself.
The ISS 1Play controls its generated voltage using an algorithm which is based on the grid´s frequency
monitoring.
For further information it is highly recommended to read the “ISS 1Play Installations Technical Guide”.

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3.4 AC Grid / Generator
3.4.1 Which types of grid are allowed?
It is important to remark that ISS 1Play is only able to be connected to a single phase installations, and the
only Earthing or Grounding system is TT or TN.
For identifying the systems, see the definition section “2.2 - Electric Power Systems (AC)”.
For more information, see the “Installation and Operation Manual” of the Ingecon Sun Storage 1Play.
3.4.2 Does the ISS 1Play have any surge arrestors to protect from AC over-voltages?
The ISS1 Play does not have surge arrestors but it includes varistors in the AC side. Varistors are used as the
surge arrestors to prevent the device from transient over-voltages.
3.4.3 In Stand Alone systems, how does the ISS 1Play starts up automatically a Genset?
The ON/OFF GENERATOR of the digital output configuration options is used to start up the genset in the
following situations:
- Battery charge level (SOC): This allows the generator to be switched on once the SOC reaches the
“SOC MIN” parameter and furthermore, if the batteries are lead-acid batteries, when the battery
reaches the “V MINIMUM” parameter. The generator is switched off once the SOC reaches the “SOC
GRID” parameter. This option is always activated by default and cannot be deactivated.
- Time Schedule: The Genset can be configured to be switched on daily at a specific hour (hh:mm) and
to be switched off at another hour (hh:mm). The time schedule can´t be done for applying it in
different days of the week, it must be done daily.
- Manually: This allows you to switch the generator on/off manually and immediately. The generator will
continue to run until the shut-down is ordered by the same method.
- Overload: The Genset can be configured to be switched on/off according to the power consumed by
the loads in a set time. For that, the loads should be connected in AC LOADS port of the inverter. If
the power consumed by the loads is more than the inverter power capacity and the genset is not
switched on at time, the inverter will stop.
Important: When any of the situations above wants to switch the genset on, it will be done. However, all of
them must command to switch off the genset to do so.
For more information, see the “Installation and Operation Manual” of the Ingecon Sun Storage 1Play.

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3.5 Loads
3.5.1 Having grid and loads of 10kW, is it possible to feed them with an ISS 1Play? How the
installation should be?
Yes, it is possible because the both the AC Grid Port and the AC Loads Port are limited to 11.5 kW. However,
the ISS 1Play will be able to provide the Output (AC) Rated Power from the Battery or/and PV Input. The
remaining power would be provided by the utility grid or genset.
So, in this case is compulsory having the system connected to an utility grid or genset as long as ISS 1Play
family´s biggest Rated Power is 6kW.
For further information it is highly recommended to read the “ISS 1Play Installations Technical Guide”.