Victron energy EasySolar-II GX 48/3000/35-32 User manual

EasySolar-II 48/3000/35-32 230V MPPT 250/70 GX
(PMP482307010)
Manual
EN
Handleiding
NL
Manuel
FR
Anleitung
DE
Manual
ES
Användarhandbok
SE
Manuale
IT
Appendix

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EN NL FR DE ES SE IT Appendix
1. Introduction
The Victron EasySolar-II GX integrates the following elements:
•A powerful MultiPlus-II inverter/charger
•A SmartSolar MPPT solar charge controller
•A GX device with a 2x 16 character display
These elements come prewired, and preconfigured together inside a single unit. This greatly simplifies most installations,
saving time and money.
This document explains how all components fit together, how to install the product, and what documentation to use for
configuration and other details of its individual parts.
This document explains:
•Features
•Behaviour
•Specifications
•Limitations
•Installation instructions
•Troubleshooting steps
You must read it to understand how to use your product safely and reliably.
This manual applies to:
•EasySolar-II GX 48/3000/35-32
2. Latest Documentation
You can quickly access the latest version of this manual online by visiting the following link:
https://docs.victronenergy.com/easysolar-ii-gx.html

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3. Safety Instructions
Please read the documentation supplied with this product first, so that you are familiar with the safety signs and
directions before using the product. This product is designed and tested in accordance with international standards. The
product should be used for the designated application only.
WARNING: DANGER OF ELECTRICAL SHOCK
The product is used in combination with a permanent energy source (battery). Even if the product is switched off, a
dangerous electrical voltage can occur at the input and/or output terminals. Always switch the AC power off and
disconnect the battery before performing maintenance.
The product contains no internal user-serviceable parts. Do not remove the front panel and do not put the product into
operation unless all panels are fitted. All maintenance should be performed by qualified personnel.
Never use the product at sites where gas or dust explosions could occur. Refer to the specifications provided by the
manufacturer of the battery to ensure that the battery is suitable for use with this product. The battery manufacturer's
safety instructions should always be observed.
This product is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the
product by a person responsible for their safety. Children should be supervised to ensure that they do not play with the
product.
WARNING: Do not lift heavy objects unassisted
3.1 Transport and storage
On storage or transport of the product, ensure that the mains supply and battery leads are disconnected.
No liability can be accepted for damage in transit if the equipment is not transported in its original packaging.
Store the product in a dry environment; the storage temperature should range from –20°C to 60°C.
Refer to the battery manufacturer's manual for information on transport, storage, charging, recharging and disposal of the
battery.
Protect the solar modules from incident light during installation, e.g. cover them.
Never touch uninsulated cable ends.
Use only insulated tools.
3.2 Grounding
Battery grounding: this device can be installed in a positive or negative grounded system.
Note: apply a single ground connection (preferably close to the battery) to prevent malfunctioning of the system.
•Chassis grounding: A separate earth path for the chassis ground is permitted because it is isolated from the
positive and negative terminal.
•The USA National Electrical Code (NEC) requires the use of an external ground fault protection device (GFPD).
These MPPT chargers do not have internal ground fault protection. The system electrical negative should be
bonded through a GFPD to earth ground at one (and only one) location.
•The charger must not be connected with grounded PV arrays. (one ground connection only)
•The positive and negative of the PV array should not be grounded. Ground the frame of the PV panels to
reduce the impact of lightning.
**WHEN A GROUND FAULT IS INDICATED, BATTERY TERMINALS AND CONNECTED CIRCUITS MAY BE
UNGROUNDED AND HAZARDOUS

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EN NL FR DE ES SE IT Appendix
4. Product Description
The basis of the product is an extremely powerful sine inverter, battery charger and transfer switch in a compact casing.
It is suited for use in Marine, Automotive, as well as stationary land-based applications.
4.1. Features applying to all applications
4.1.1 GX LCD display
A backlit 2 x 16 character display screen shows system parameters.
4.1.2 BMS-Can Connections
The BMS-Can connection allows connecting of compatible 500 kbps CAN-bus BMS batteries. VE.Can products as for
example Victron MPPT Solar Chargers, or a Lynx Shunt VE.Can are NOT supported.
4.1.3 Ethernet and Wifi
Ethernet and Wifi connections allow for local and remote system monitoring, as well as connection to Victron's
free VRM portal for long term system performance information.
4.1.4 Automatic and uninterruptible switching
In the event of a supply failure or when the generating set is switched off, the product will switch over to inverter
operation and take over the supply of the connected devices. This is done so quickly that operation of computers and
other electronic devices is not disturbed (Uninterruptible Power Supply or UPS functionality). This makes the product
highly suitable as an emergency power system in industrial and telecommunication applications.
4.1.5 Two AC outputs
Besides the usual uninterruptible output (AC-out-1), an auxiliary output (AC-out-2) is available that disconnects its load in
the event of battery operation. Example: an electric boiler that is allowed to operate only if the genset is running or shore
power is available. There are several applications for AC-out-2.
4.1.6 Three phase capability
The unit can be connected with others and configured for three-phase output. Up to 6 sets of three can be parallel
connected to provide 45 kW / 54 kVA inverter power and more than 600A charging capacity.
4.1.7 PowerControl – maximum use of limited AC power
The product can supply a huge charging current. This implies heavy loading of the AC mains or generator. Therefore a
maximum current can be set. The product then takes other power users into account, and only uses 'surplus' current for
charging purposes.
4.1.8 PowerAssist – Extended use of generator or shore current
This feature takes the principle of PowerControl to a further dimension allowing the product to supplement the capacity of
the alternative source. Where peak power is often required only for a limited period, the product will make sure that
insufficient AC mains or generator power is immediately compensated for by power from the battery. When the load
reduces, the spare power is used to recharge the battery.
4.1.9 Programmable
All settings can be changed with a PC and free of charge software, downloadable from our
website www.victronenergy.com. See this manual for more information - https://docs.victronenergy.com/veconfigure.html
4.1.10 Programmable relay
The product is equipped with a programmable relay. The relay can be programmed for different applications, for example
as a starter relay for a generator.
4.1.11 External current transformer (optional)
External current transformer option to implement PowerControl and PowerAssist with external current sensing.
4.1.12 Programmable analog/digital input/output ports (Aux in 1 and Aux in 2, see appendix)
The product is equipped with 2 analog/digital input/output ports.
These ports can be used for several purposes. One application is communication with the BMS of a lithium-ion battery

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4.2 Features specific on-grid and off-grid systems combined with PV
4.2.1 External current transformer (optional)
When used in a grid-parallel topology the internal current transformer cannot measure the current to or from the mains.
In this case an external current transformer has to be used. See appendix A. Contact your Victron Distributor for further
information about this installation type.
4.2.2 Frequency shift
When solar inverters are connected to the AC-output of the product, excess solar energy is used to recharge the
batteries. Once the absorption voltage is reached, charge current will reduce and excess energy will be fed back into the
mains. If the mains is not available, the product will slightly increase the AC frequency to reduce the output of the solar
inverter.
4.2.3 Built-in Battery Monitor
The ideal solution when the product is part of a hybrid system (diesel generator, inverter/chargers, storage battery, and
alternative energy). The built-in battery monitor can be set to start and stop the generator:
•Start at a preset % discharge level, and/or
•start (with a preset delay) at a preset battery voltage, and/or
•start (with a preset delay) at a preset load level.
•Stop at a preset battery voltage, or
•stop (with a preset delay) after the bulk charge phase has been completed, and/or
•stop (with a preset delay) at a preset load level.
4.2.4 Autonomous operation when the grid fails
Houses or buildings with solar panels or a combined micro-scale heating and power plant or other sustainable energy
sources have a potential autonomous energy supply which can be used for powering essential equipment (central
heating pumps, refrigerators, deep freeze units, Internet connections, etc.) during a power failure. A problem is however
that grid connected sustainable energy sources drop out as soon as the grid fails. With the product and batteries, this
problem can be solved: the product can replace the grid during a power failure. When the sustainable energy
sources produce more power than needed, the product will use the surplus to charge the batteries; in the event of a
shortfall, the product will supply additional power from the battery
4.3 Battery charger
4.3.1 Lead-acid batteries
Adaptive 4-stage charge algorithm: bulk – absorption – float – storage
The microprocessor-driven adaptive battery management system can be adjusted for various types of batteries. The
adaptive function automatically adapts the charging process to battery use.
The right amount of charge: variable absorption time
In the event of slight battery discharge, absorption is kept short to prevent overcharging and excessive gas formation.
After deep discharging, the absorption time is automatically extended in order to fully charge the battery.
Preventing damage due to excessive gassing: the BatterySafe mode
If, in order to quickly charge a battery, a high charge current in combination with a high absorption voltage has been
chosen, damage due to excessive gassing will be prevented by automatically limiting the rate of voltage increase once
the gassing voltage has been reached.
Less maintenance and aging when the battery is not in use: the Storage mode
The Storage mode kicks in whenever the battery has not been subjected to discharge during 24 hours. In the Storage
mode float voltage is reduced to 2,2V/cell (13,2V for 12V battery) to minimise gassing and corrosion of the positive
plates. Once a week the voltage is raised back to the absorption level to 'equalize' the battery. This feature prevents
stratification of the electrolyte and sulphation, a major cause of early battery failure.
Battery voltage sense: the correct charge voltage
Voltage loss due to cable resistance can be compensated by using the voltage sense facility to measure voltage directly
on the DC bus or on the battery terminals.
Battery voltage and temperature compensation
The temperature sensor (supplied with the product) serves to reduce charging voltage when battery temperature rises.
This is particularly important for maintenance-free batteries, which could otherwise dry out by overcharging.

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EN NL FR DE ES SE IT Appendix
4.3.2 Li-ion batteries
Victron LiFePO4 Smart batteries
Use the VE.Bus BMS
4.3.3 Other Li-ion batteries
Please see https://www.victronenergy.com/live/battery_compatibility:start
4.3.4 More on batteries and battery charging
Our book 'Energy Unlimited' offers further information on batteries and battery charging, and is available free of charge
on our website: www.victronenergy.com/support-and-downloads/whitepapers
For more information on adaptive charging, please also refer to the General Technical Information on our website.
4.4 ESS – Energy Storage Systems: feeding energy back into the grid
When the product is used in a configuration in which it will feed back energy into the grid it is required to enable grid code
compliance by selecting the appropriate grid code country setting with the VEConfigure tool.
Once set, a password will be required to disable grid code compliance or change grid code related parameters. Contact
your Victron Distributor if you require this password.
Depending on the grid code there are several reactive Power control modes:
•Fixed cos φ
•Cos φ as function of P
•Fixed Q
•Q as function of input voltage
Reactive Power capability
If the local grid code is not supported by the product an external certified interface device should be used to connect the
product to the grid.
The product can also be used as a bidirectional inverter operating parallel to the grid, integrated into a customer
designed system (PLC or other) that takes care of the control-loop and grid measurement,
Special note regarding NRS-097 (South Africa)
1. The maximum allowed impedance of the network is 0.28Ω+ j0.18Ω
2. The inverter is fulfilling the unbalance requirement in case of multiple single phase units only when the Color
Control GX is part of the installation.
Special notes regarding AS 4777.2 (Australia/New Zealand)
1. Certification and CEC approval for off-grid use does NOT imply approval for grid-interactive installations.
Additional certification to IEC 62109.2 and AS 4777.2.2015 are required before grid-interactive systems can be
implemented. Please check the Clean Energy Council website for current approvals.
2. DRM – Demand Response Mode When the AS4777.2 grid code has been selected in VEConfigure, DRM 0
functionality is available on port AUX1 (see appendix A. To enable grid connection, a resistance of between
5kOhm and 16kOhm must be present between the terminals of port AUX1 (marked + and - ). The product will
disconnect from the grid in case of an open circuit or a short circuit between the terminals of port AUX1. The
maximum voltage that may be present between the terminals of port AUX1 is 5V. Alternatively, if DRM 0 is not
required, this functionality can be disabled with VEConfigure.

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5. Operation
On/Off/Charger Only Switch
The switch is located on the underside to the bottom right of the product.
The switch has three positions. The centre position 0 is Off. The I position is On, and the II position is Charger Only.
When switched to 'I / On' (rocked towards the front of the unit), the product will come into operation and the inverter is
fully functional.
If an AC voltage is connected to the 'AC in' terminal, it will be switched through to the 'AC out' terminal, if within
specifications. The inverter will switch off, and the charger commences charging. 'Bulk', 'Absorption' or 'Float' will display,
depending on the charger mode.
If the voltage at the 'AC-in' terminal is rejected, the inverter will switch on.
When the switch is switched to 'II / Charger Only', only the battery charger of the Multi will operate (if mains voltage is
present). In this mode input voltage also is switched through to the 'AC out' terminal.
NOTE: When only the charger function is required, ensure that the switch is switched to 'II / Charger Only'. This prevents
the inverter from being switched on if the mains voltage is lost, thus preventing your batteries from running flat.
6. GX LCD Interface
The display screen will present useful information about your system.
6.1 On/off behaviour
When the product is switched off with the physical switch on the device or with the Remote On/Off terminals, then the GX
card is off as well. If you switch the product remotely, using a Digital Multi Control, then the GX card will remain powered.
Also when switching the inverter/charger off from within the GX menus, the GX card will remain powered.
Lastly, when the inverter/charger switches itself off due to an alarm, such as low battery or overtemperature, then the GX
card will remain powered and functional as well.
6.2 Push button behaviour
When the GX Card is on, pushing the button beside the screen will activate the backlight. The backlight will turn itself off
after 5 minutes.
Once the backlight has been activated, pushing the button again will cycle through the available display options. Some
options will be displayed automatically, and others require a button push to display.
6.3 Information displayed
•Solar Power, Voltage and Charge state (if connected)
•ESS/DVCC reason codes (if active)
•Solar Daily Yield
•Inverter/charger charge state (eg Bulk, ESS)
•Battery State of Charge, Power and Voltage
•Network IP Address and Connection Type (if connected).
•AC input and output Power
In a system with more than one phase, there will be additional AC input and output information available, eg
•Phase 1 AC input Voltage and Power.
•Phase 1 AC output Voltage and Power.
•Phase 2 AC input Voltage and Power.
•Phase 2 AC output Voltage and Power.
•Phase 3 AC input Voltage and Power.
•Phase 3 AC output Voltage and Power.
6.4 Error Code Display
If there is an error with the system, the error code will be displayed on the screen. The screen will display VE.Bus error
code numbers, and MPPT error codes (if connected).
Basic information about the VE.Bus Error codes are in the Error Indications section.
For further details about the error codes please see:
VE.Bus Error Codes
MPPT Error Codes
The error will display until it is cleared.

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EN NL FR DE ES SE IT Appendix
7. Connection of PV Array
7.1 Sizing the array
We recommend to use the MPPT Sizing Calculator available on our website.
•The solar charge controller will operate only if the PV voltage exceeds battery voltage (Vbat).
•PV voltage must exceed Vbat + 5V for the controller to start. Thereafter minimum PV voltage is Vbat + 1V.
•Maximum PV Array open circuit voltage is 250V.
•Maximum PV Array short circuit current is 35A.
For example:
•Minimum number of cells in series: 144 (4x 12V panel or 2x 24V panel in series).
•Maximum: 360 cells (10x 12V or 5x 24 panel in series).
Remark: at low temperature, the open circuit voltage of a 360 cell array may exceed 250V, depending on local conditions
and cell specifications. In that case, the number of cells in series must be reduced.
The MPPT component of the EasySolar-II GX is pre-programed to 48V to match the requirements of the included
inverter/charger.
7.2 Connection
1. Connect the battery.
2. Connect the solar array to the M6 solar bolts. Note: if connected with reverse polarity, the controller will heat up
but will not charge the battery.
Note that the 100 Amp fuse is not end-user replaceable. When blown, the unit must be returned to a service agent for
repair. It only blows after other components in the device have failed

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8. Installation
This product contains potentially dangerous voltages. It should only be installed under the supervision of a suitable
qualified installer with the appropriate training, and subject to local requirements. Please contact Victron Energy for
further information or necessary training
8.1 Location
The product must be installed in a dry and well-ventilated area, as close as possible to the batteries. There should be a
clear space of at least 10 cm around the product for cooling.
WARNING: Excessively high ambient temperature will result in the following:
•Reduced service life.
•Reduced charging current.
•Reduced peak capacity, or shutdown of the inverter. Never position the appliance directly above the batteries.
This product is suitable for wall mounting. For mounting purposes, a hook and two holes are provided at the back of the
casing (see appendix G). The device can be fitted either horizontally or vertically. For optimal cooling, vertical fitting is
preferred.
WARNING: The interior of the product must remain accessible after installation.
Try and keep the distance between the product and the battery to a minimum in order to minimize cable voltage losses.
For safety purposes, this product should be installed in a heat-resistant environment. You should prevent the presence of
e.g. chemicals, synthetic components, curtains or other textiles, etc., in the immediate vicinity.
8.2 Connection of battery cables
In order to utilize the full capacity of the product, batteries with sufficient capacity and battery cables with sufficient cross
section should be used. See table.
48/3000/35
Recommended battery capacity (Ah)
100–400
Recommended DC fuse
125 A
Recommended cross section (mm²) per + and - connection terminal
0 – 5 m
35 mm²
5 – 10 m
70 mm²
Remark: Internal resistance is the important factor when working with low capacity batteries. Please consult your supplier
or the relevant sections of our book 'Energy Unlimited', downloadable from our website.
8.3 Battery Connection Procedure
Proceed as follows to connect the battery cables:
WARNING: Use a torque wrench with insulated box spanner in order to avoid shorting the battery.
Maximum torque: 14 Nm Avoid shorting the battery cables.
WARNING: Specific care and attention must be taken when making the battery connections. Correct polarity must be
confirmed with a multimeter before connection. Connecting a battery with incorrect polarity will destroy the device and is
not covered by warranty.
•Undo the two screws at the bottom of the enclosure and remove the service panel.
•Connect the battery cables. First the - cable then the +. Be aware that there may be a spark when making the
battery connections.
•Tighten the nuts to the prescribed torques for minimal contact resistance.

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EN NL FR DE ES SE IT Appendix
8.4 Connection of the AC cabling
WARNING
This is a safety class I product (supplied with a ground terminal for safety purposes). Its AC input and/or output
terminals and/or grounding point on the inside of the product must be provided with an uninterruptible
grounding point for safety purposes. see Appendix A.
In a fixed installation, an uninterruptible grounding can be secured by means of the grounding wire of the AC input.
Otherwise the casing must be grounded.
This product is provided with a ground relay (relay H, see Appendix B) that automatically connects the Neutral output
to the chassis if no external AC supply is available. If an external AC supply is provided, the ground relay H will open
before the input safety relay closes. This ensures the correct operation of an earth leakage circuit breaker that is
connected to the output.
In a mobile installation (for example, with a shore current plug), interrupting the shore connection will simultaneously
disconnect the grounding connection. In that case, the casing must be connected to the chassis (of the vehicle) or to the
hull or grounding plate (of the boat). In case of a boat, direct connection to the shore ground is not recommended
because of potential galvanic corrosion. The solution to this is using an isolation transformer. Torque: 2 Nm
The terminal blocks can be found on the printed circuit board, see Appendix A.
Do not invert neutral and phase when connecting the AC.
The inverter does incorporate a mains frequency isolating transformer. This precludes the possibility of DC current at any
AC port. Therefore type A RCD’s can be used.
•AC-in The AC input cable can be connected to the terminal block 'AC–in'. From left to right: "N" (neutral), "PE"
(earth) and "L" (phase) The AC input must be protected by a fuse or magnetic circuit breaker rated at 32A
or less, and cable cross-section must be sized accordingly. If the input AC supply is rated at a lower value,
the fuse or magnetic circuit breaker should be down sized accordingly.
•AC-out-1 The AC output cable can be connected directly to the terminal block 'AC-out'. From left to right: "N"
(neutral), "PE" (earth) and "L" (phase) With its PowerAssist feature the Multi can add up to 3kVA (that is 3000 /
230 = 13A) to the output during periods of peak power requirement. Together with a maximum input current of
32A this means that the output can supply up to 32 + 13 = 45 A. An earth leakage circuit breaker and a fuse or
circuit breaker rated to support the expected load must be included in series with the output, and cable cross-
section must be sized accordingly.
•AC-out-2 A second output is available that disconnects its load in the event of battery operation. On these
terminals, equipment is connected that may only operate if AC voltage is available on AC-in-1, e.g. an electric
boiler or an air conditioner. The load on AC-out-2 is disconnected immediately when the inverter/charger
switches to battery operation. After AC power becomes available on AC-in-1, the load on AC-out-2 will be
reconnected with a delay of approximately 2 minutes. This to allow a genset to stabilise
8.5 Optional Connections
A number of optional connections are possible:
8.5.1 Remote Control
The product can be remotely controlled in two ways.
•With an external switch (connection terminal M, see Appendix A). Operates only if the switch on the device is
set to "on".
•With a Digital Multi Control panel (connected to one of the two RJ45 sockets L, see Appendix A). Operates only
if the switch on the device is set to "on"
The Digital Multi Control panel has a rotary knob with which the maximum current of the AC input can be set: see
PowerControl and PowerAssist.
8.5.2 Programmable relay
The product is equipped with a programmable relay.
The relay can be programmed for all kinds of other applications, for example as a starter relay for a generator.

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8.5.3 Programmable analog/digital input/output ports
The product is equipped with 2 analog/digital input/output ports.
These ports can be used for several purposes. One application is communication with the BMS of a lithium-ion battery.
8.5.4 Voltage sense (connection terminal J, see Appendix A)
For compensating possible cable losses during charging, two sense wires can be connected with which the voltage
directly on the battery or on the positive and negative distribution points can be measured. Use wire with a cross-section
of 0,75mm².
During battery charging, the inverter/charger will compensate the voltage drop over the DC cables up to a maximum of 1
Volt (i.e. 1V over the positive connection and 1V over the negative connection). If the voltage drop threatens to become
larger than 1V, the charging current is limited in such a way that the voltage drop remains limited to 1V.
8.5.5 Temperature sensor (connection terminal J, see Appendix A)
For temperature-compensated charging, the temperature sensor (supplied with the inverter/charger) can be connected.
The sensor is isolated and must be fitted to the negative terminal of the battery.
8.5.6 Parallel Connection
It is required to use identical units for three phase and parallel systems. In this case, as only one GX device is allowed
per system, if you wish to parallel and/or three phase with this product, you must find the same model MultiPlus-II to pair.
To assist with finding identical units, consider instead using MultiPlus-II for parallel and three phase systems, and an
external GX device.
Up to six units can be connected in parallel. When connecting this product with MultiPlus-II in a parallel system, the
following requirements must be met:
WARNING
•It is essential the negative battery terminal between the units is always connected. A fuse or circuit breaker is
not allowed on the negative.
•All units must be connected to the same battery.
•A maximum of six units connected in parallel.
•The devices must be identical (aside from GX part) and have the same firmware.
•The DC connection cables to the devices must be of equal length and cross-section.
•If a positive and a negative DC distribution point is used, the cross-section of the connection between the
batteries and the DC distribution point must at least equal the sum of the required cross-sections of the
connections between the distribution point and the units.
•Always interconnect the negative battery cables before placing the UTP cables.
•Place the units close to each other, but allow at least 10cm for ventilation purposes under, above and beside
the units.
•UTP cables must be connected directly from one unit to the other (and to the remote panel). Connection or
splitter boxes are not permitted.
•Only one remote control means (panel or switch) can be connected to the system. That means only one GX.
8.5.7 Three-phase operation
The product can also be used in 3-phase wye (Y) configuration. To this end, a connection between the devices is made
by means of standard RJ45 UTP cables (the same as for parallel operation). The system will require subsequent
configuration.
Pre-requisites: see Section Voltage Sense
1. Note: the product is not suitable for 3-phase delta (Δ) configuration.
2. When the AS4777.2 grid code has been selected in VEConfigure, only 2 units in parallel per phase are allowed
in a three phase system.
For full details on parallel and three-phase configuration always discuss with your Victron distributor first and please see
this specific manual: https://www.victronenergy.com/live/ve.bus:manual_parallel_and_three_phase_systems
8.5.8 Connection to the VRM Portal
Connection of the product to VRM requires an internet connection. This can be made via wifi, or preferably a hardwired
ethernet cable to an internet connected router.
The VRM site id is located on a sticker inside the cable connections area of the device.
For more information to set up VRM, refer to the VRM Getting Started Manua

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EN NL FR DE ES SE IT Appendix
9. Configuration
This section is intended mainly for stand-alone applications
For grid connected Energy Storage Systems (ESS) please see https://www.victronenergy.com/live/ess:start
•Settings may only be changed by a suitable qualified installer with the appropriate training, and subject to local
requirements. Please contact Victron for further information or necessary training.
•Read the instructions thoroughly before implementing changes.
•During setting of the charger, the AC input must be removed.
9.1 Standard settings: ready for use
On delivery, the product is set to standard factory values. In general, these settings are suitable for single-unit operation.
WARNING
Possibly, the standard battery charging voltage is not suitable for your batteries! Refer to the manufacturer's
documentation, or to your battery supplier!
Standard factory settings
Setting
Value
Inverter frequency
50 Hz
Input frequency range
45 – 65 Hz
Input voltage range
180 – 265 VAC
Inverter voltage
230 VAC
Stand-alone / parallel / 3-
phase
stand-alone
AES (Automatic Economy
Switch)
off
Ground relay
on
Charger on / off
on
Battery charge curve
four-stage adaptive with BatterySafe mode
Charging current
100% of the maximum charging current
Battery type
Victron Gel Deep Discharge (also suitable for Victron AGM Deep
Discharge)
Automatic equalisation
charging
Off
Absorption voltage
57.6V
Absorption time
up to 8 hours (depending on bulk time)
Float voltage
55.2V
Storage voltage
52.8V (not adjustable)
Repeated absorption time
1 hour
Absorption repeat interval
7 days
Bulk protection
on
AC input current limit
32A (= adjustable current limit for PowerControl and PowerAssist
functions)
UPS feature
on
Dynamic current limiter
off
WeakAC
off
BoostFactor
2
Programmable relay
alarm function
PowerAssist
on
9.2 Explanation of settings
Settings that are not self-explanatory are described briefly below. For further information, please refer to the help files in
the software configuration programs.
Inverter frequency
Output frequency if no AC is present at the input.
Adjustability: 50 Hz; 60 Hz
Input frequency range
Input frequency range accepted. The product synchronises within this range with the AC input frequency. The output
frequency is then equal to the input frequency.
Adjustability: 45 – 65 Hz; 45 – 55 Hz; 55 – 65 Hz

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Input voltage range
Voltage range accepted. The product synchronises within this range with the AC input. The output voltage is then equal
to the input voltage.
Adjustability:
Lower limit: 180 – 230V
Upper limit: 230 – 270V
Note : the standard lower limit setting of 180V is intended for connection to a weak mains supply, or to a generator with
unstable AC output. This setting may result in a system shut down when connected to a 'brushless, self excited,
externally voltage regulated, synchronous AC generator' (synchronous AVR generator). Most generators rated at 10kVA
or more are synchronous AVR generators. The shut down is initiated when the generator is stopped and revs down while
the AVR simultaneously 'tries' to keep the output voltage of the generator at 230V.
The solution is to increase the lower limit setting to 210VAC (the output of AVR generators is generally very stable), or to
disconnect the product from the generator when a generator stop signal is given (with help of an AC contactor installed in
series with the generator).
Inverter voltage
Output voltage in battery operation.
Adjustability: 210 – 245V
Stand-alone / parallel operation / 2-3 phase setting
Using multiple devices, it is possible to:
•increase total inverter power (several devices in parallel)
•create a split-phase system with a separate autotransformer: see VE autotransformer datasheet and manual
•create a 3-phase system.
The standard product settings are for a single device in stand alone operation.
AES (Automatic Economy Switch)
If this setting is turned 'on', the power consumption in no-load operation and with low loads is decreased by approx. 20%,
by slightly 'narrowing' the sinusoidal voltage. Applicable in stand-alone configuration only.
Search Mode
Instead of the AES mode, the search mode can also be chosen. If search mode is 'on', the power consumption in no-
load operation is decreased by approx. 70%. In this mode the product, when operating in inverter mode, is switched off in
case of no load or very low load, and switches on every two seconds for a short period. If the output current exceeds a
set level, the inverter will continue to operate. If not, the inverter will shut down again.
The Search Mode 'shut down' and 'remain on' load levels can be set with VEConfigure.
The default settings are:
Action
Threshold
Shut down
40 Watt (linear load)
Turn on
100 Watt (linear load)
Ground relay (see appendix B)
With this relay, the neutral conductor of the AC output is grounded to the chassis when the back feed safety relays are
open. This ensures the correct operation of earth leakage circuit breakers in the output. If required an external ground
relay can be connected (for a split-phase system with a separate autotransformer). See appendix A.
Battery charge algorithm
The standard setting is 'Four-stage adaptive with BatterySafe mode'.
This is the recommended charge algorithm for lead acid batteries. See the help files in the software configuration
programs for other features.
Battery type
The standard setting is the most suitable for Victron Gel Deep Discharge, Gel Exide A200, and tubular plate stationary
batteries (OPzS). This setting can also be used for many other batteries: e.g. Victron AGM Deep Discharge and other
AGM batteries, and many types of flat-plate flooded batteries.
With VEConfigure the charge algorithm can be adjusted to charge any battery type (Nickel Cadmium batteries, Lithium-
ion batteries)

13
EN NL FR DE ES SE IT Appendix
Absorption time
In case of the standard setting 'Four-stage adaptive with BatterySafe mode' the absortion time depends on the bulk time
(adaptive charge curve), so that the battery is optimally charged.
9.2.1 Equalisation
Traction batteries require regular additional charging. In the equalisation mode, the product will charge with increased
voltage for one hour (4V for a 48V battery). The charging current is then limited to 1/4 of the set value.
Equalisation mode supplies a higher charging voltage than most DC consuming devices can cope with. These
devices must be disconnected before additional charging takes place.
Automatic equalisation charging
This setting is intended for flooded tubular plate traction or OPzS batteries. During absorption the voltage limit increases
to 2,83V/cell (68V for a 48V battery) once the charge current has tapered down to less than 10% of the set maximum
current.
See 'tubular plate traction battery charge curve' in VEConfigure.
Storage voltage, Repeated Absorption Time, Absorption Repeat Interval
See Appendix E.
Bulk Protection
When this setting is 'on', the bulk charging time is limited to 10 hours. A longer charging time could indicate a system
error (e.g. a battery cell short-circuit).
AC input current limit
These are the current limit settings for which PowerControl and PowerAssist come into operation.
PowerAssist setting range: from 5,3A to 32A.
Factory setting: the maximum value (32A).
UPS feature
If this setting is 'on' and AC on the input fails, the product switches to inverter operation practically without interruption.
The output voltage of some small generator sets is too unstable and distorted for using this setting – the product would
continually switch to inverter operation. For this reason, the setting can be turned off. The product will then respond less
quickly to AC input voltage deviations. The switchover time to inverter operation is consequently slightly longer, but most
equipment (most computers, clocks or household equipment) is not adversely impacted.
Recommendation: Turn the UPS feature off if the product fails to synchronise, or continually switches back to inverter
operation.
Dynamic current limiter
Intended for generators, the AC voltage being generated by means of a static inverter (so-called 'inverter' generators). In
these generators, engine rpm is reduced in case of low load: this reduces noise, fuel consumption and pollution. A
disadvantage is that the output voltage will drop severely or even completely fail in the event of a sudden load increase.
More load can only be supplied after the engine is up to speed.
If this setting is 'on', the device will start supplying extra power at a low generator output level and gradually allow the
generator to supply more, until the set current limit is reached. This allows the generator engine to get up to speed.
This setting is also often used for 'classical' generators that respond slowly to sudden load variation.
Weak AC
Strong distortion of the input voltage can result in the charger hardly operating or not operating at all. If WeakAC is set,
the charger will also accept a strongly distorted voltage, at the cost of greater distortion of the input current.
Recommendation: Turn WeakAC on if the charger is hardly charging or not charging at all (which is quite rare!). Also
turn on the dynamic current limiter simultaneously, and reduce the maximum charging current to prevent overloading the
generator if necessary.
Note: when WeakAC is on, the maximum charge current is reduced by approximately 20%.
BoostFactor This value adjusts the PowerAssist behaviour. If you are experiencing issues with PowerAssist (e.g.
overload), please consult with a specialist trained by Victron Energy before attempting to modify.
Programmable relay
The device is equipped with multiple programmable relays. These relays can be programmed for all kinds of other
applications, for example as a starter relay for a generator.
Auxiliary AC output (AC-out-2)
Intended for non-critical loads and directly connected to the AC input. With current measurement circuit to enable
PowerAssist.

14
9.3 Inverter/charger
For more information regarding the configuration of the Inverter/Charger component of the EasySolar-II GX, please see
the MultiPlus-II manuals
Full programming functionality of the Inverter/charger requires use of a laptop computer with VEConfigure. Limited
configuration is possible with VictronConnect
9.4 SmartSolar MPPT 250/70 charge controller
The Solar Charger is configured using VictronConnect. The easiest method of connecting to the Solar Charger part is via
Bluetooth. This works for Android, iOS and macOS. It does not work for Windows.
When required to use Windows, unplug the VE.Direct cable from the Solar Charger, and use a VE.Direct USB interface
cableto your Windows laptop. Once completed, reconnect the VE.Direct cable that runs between the internal GX device
and the Solar Charger.
For the complete documentation for the MPPT included inside the EasySolar-II GX, please refer to these documents:
•SmartSolar MPPT 250/70 documentation
•VictronConnect MPPT Solar Chargers
•VictronConnect manual

15
EN NL FR DE ES SE IT Appendix
10. Maintenance
The product does not require specific maintenance. It will suffice to check all connections once a year. Avoid moisture
and oil/soot/vapours, and keep the device clean.
11. Error Indications
With the procedures below, most errors can be quickly identified. If an error cannot be resolved, please refer to your
Victron Energy supplier.
11.1 General error indications
Problem
Cause
Solution
No output voltage on AC-out-2.
EasySolar-II GX in inverter mode
Unit will not switch over to generator or
mains operation.
Circuit breaker or fuse in the AC-in input
is open as a result of overload.
Remove overload or short circuit on AC-
out-1 or AC-out-2, and reset fuse/breaker.
Inverter operation not initiated when
switched on.
The battery voltage is excessively high or
too low. No voltage on DC connection.
Ensure that the battery voltage is within
the correct range.
'Low battery' The battery voltage is low.
Charge the battery or check the battery
connections.
'Low battery' (Shutdown)
The converter switches off because the
battery voltage is too low.
Charge the battery or check the battery
connections.
'Overload'
The converter load is higher than the
nominal load.
Reduce the load.
'Overload' (Shutdown)
The converter is switched off due to
excessively high load. Reduce the load.
'Over Temperature' The environmental temperature is high,
or the load is too high.
Install the converter in cool and well-
ventilated environment, or reduce the
load.
'Low Bat V Overload' (Shutdown) Low battery voltage and excessively high
load.
Charge the batteries, disconnect or
reduce the load, or install higher capacity
batteries. Fit shorter and/or thicker
battery cables.
'High DC Ripple' Ripple voltage on the DC connection
exceeds 1,5Vrms.
Check the battery cables and battery
connections. Check whether battery
capacity is sufficiently high, and increase
this if necessary.
'DC Ripple Shutdown'
The inverter is switched off due to an
excessively high ripple voltage on the
input.
Install batteries with a larger capacity. Fit
shorter and/or thicker battery cables, and
reset the inverter (switch off, and then on
again).
The charger does not operate. The AC input voltage or frequency is not
within the range set.
Ensure that the AC input is between
185VAC and 265VAC, and that the
frequency is within the range set (default
setting 45-65 Hz).
Circuit breaker or fuse in the AC-in input
is open as a result of overload.
Remove overload or short circuit on AC-
out-1 or AC-out-2, and reset fuse/breaker.
The battery fuse has blown.
Replace the battery fuse.
The distortion or the AC input voltage is
too large (generally generator supply).
Turn the settings WeakAC and dynamic
current limiter on.
The charger does not operate. 'Bulk
Protection' shown.
EasySolar-II GX is in 'Bulk protection'
mode thus, the maximum bulk charging
time of 10 hours is exceeded. Such a long
charging time could indicate a system
error (e.g. a battery cell short-circuit).
Check your batteries. NOTE: You can reset
the error mode by switching off and back
on the EasySolar-II GX. The standard
EasySolar-II GX factory setting of the 'Bulk
protection' mode is switched on. The
'Bulk protection' mode can be switched
off with help of VEConfigure only.
The battery is not completely charged. Charging current excessively high,
causing premature absorption phase.
Set the charging current to a level
between 0.1 and 0.2 times the battery
capacity.
Poor battery connection.
Check the battery connections.
The absorption voltage has been set to
an incorrect level (too low).
Set the absorption voltage to the correct
level.
The float voltage has been set to an
incorrect level (too low).
Set the float voltage to the correct level.
The available charging time is too short
to fully charge the battery.
Select a longer charging time or higher
charging current.
The absorption time is too short. For
adaptive charging this can be caused by
Reduce the charging current or select the
'fixed' charging characteristics.

16
an extremely high charging current with
respect to battery capacity, so that bulk
time is insufficient.
The battery is overcharged.
The absorption voltage is set to an
incorrect level (too high).
Set the absorption voltage to the correct
level.
The float voltage is set to an incorrect
level (too high).
Set the float voltage to the correct level.
Poor battery condition.
Replace the battery.
The battery temperature is too high (due
to poor ventilation, excessively high
environmental temperature, or
excessively high charging current).
Improve ventilation, install batteries in a
cooler environment, reduce the charging
current,
and connect the temperature
sensor.
The charging current drops to 0 as soon
as the absorption phase initiates. Defective battery temperature sensor
Disconnect the temperature sensor plug
in the EasySolar-II GX. If charging
functions correctly after approximately 1
minute, the temperature sensor should
be replaced.
The battery is over-heated (+50°C)
Install the battery in a cooler
environment
Reduce the charging current
Check whether one of the battery cells
has an internal short circuit
11.2 VE.Bus error codes
A VE.Bus system can display various error codes. These codes are displayed on the front GX display screen.
To interpret a VE.Bus error code correctly, you should refer to the VE.Bus error codes documentation -
https://www.victronenergy.com/live/ve.bus:ve.bus_error_codes.
Code
Meaning:
Cause/solution:
1
Device is switched off because one of the other
phases in the system has switched off.
Check the failing phase.
3Not all, or more than, the expected devices were
found in the system.
The system is not properly configured. Reconfigure the
system. If the error persists, possible communication cable
error. Check the cables and switch all equipment off, and then
on again.
4
No other device whatsoever detected.
Check the communication cables.
5
Overvoltage on AC-out.
Check the AC cables.
10 System time synchronisation problem occurred.
Should not occur in correctly installed equipment. Check the
communication cables.
14 Device cannot transmit data.
Check the communication cables (there may be a short
circuit).
17
One of the devices has assumed 'master' status
because the original master failed.
Check the failing unit. Check the communication cables.
18
Overvoltage has occurred.
Check AC cables.
22 This device cannot function as 'slave'.
This device is an obsolete and unsuitable model. It should be
replaced.
24 Switch-over system protection initiated.
Should not occur in correctly installed equipment. Switch all
equipment off, and then on again. If the problem recurs,
check the installation.
Possible solution: increase lower limit
of AC input voltage to 210 VAC (factory setting is 180 VAC)
25
Firmware incompatibility. The firmware of one the
connected devices is not sufficiently up to date to
operate in conjunction with this device.
1) Switch all equipment off. 2) Switch the device returning
this error message on. 3) Switch on all other devices one by
one until the error message reoccurs. 4) Update the firmware
in the last device that was switched on.
26 Internal error.
Should not occur. Switch all equipment off, and then on
again. Contact Victron Energy if the problem persists.

17
EN NL FR DE ES SE IT Appendix
12. Technical Specifications
EasySolar-II GX INVERTER/CHARGER
PowerControl & PowerAssist yes
Transfer switch 32A
Maximum AC input current 32A
Auxiliary output 32A
INVERTER
Input voltage range 38 – 66V
Output
Output voltage: 230 VAC ± 2% Frequency: 50 Hz ± 0,1% (1)
Cont. output power at 25°C (3)
3000VA / 2400W
Cont. output power at 40°C / 65°C 2200W / 1700W
Maximum apparent feed-in power 2500VA
Peak power 5500W
Maximum efficiency
95%
Zero load power
11W
Zero load power in AES mode 7 W
Zero load power in Search mode 2W
CHARGER
AC Input
Input voltage range: 187-265 VAC Input frequency: 45 – 65 Hz
Charge voltage 'absorption' 57,6V
Charge voltage 'float'
55,2V
Storage mode
52,8V
Maximum battery charge current (4) 35A
Battery temperature sensor
Yes
Programmable relay (5) Yes
Protection (2)
a - g
VE.Bus communication port
For parallel and three phase operation, remote monitoring and system integration
General purpose com. port Yes, 2x
SMARTSOLAR MPPT 250/70-Tr
Model SmartSolar MPPT 250/70-Tr
Maximum output current
70A
Maximum PV power
4000W
Maximum PV open circuit voltage 250V
Maximum efficiency 98%
Self-consumption 20mA
Charge voltage 'absorption', default
57,6V
Charge voltage 'float', default setting
55,2V
Protection (2) a-e
GENERAL
Interfaces BMS-Can port (VE.Can not supported), USB, Ethernet, VE.Direct, Wi-Fi
Remote on-off Yes
Operating temp. range -40 to +65°C (fan assisted cooling)
Humidity (non-condensing): max 95%
ENCLOSURE
Material & Colour
Steel, blue RAL 5012
Protection category
IP21
Battery-connection M8 bolts
PV connection M6 bolts
230 V AC-connection Screw terminals 13 mm2 (6 AWG)
Weight
26kg
Dimensions (hxwxd)
506 x 275 x 147 mm
STANDARDS
Safety
EN-IEC 60335-1, EN-IEC 60335-2-29
Emission / Immunity
EN 55014-1, EN 55014-2
EN-IEC 61000-3-2, EN-IEC 61000-3-3
IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3
Anti-islanding See our website
1) Can be adjusted to 60 Hz
2) Protection key:
a) output short circuit
b) overload
c) battery voltage too high
d) battery voltage too low
e) temperature too high
f) 230 VAC on inverter output
g) input voltage ripple too high
3) Non-linear load, crest factor 3:1
4) At 25°C ambient
5) Programmable relay which can be set for general alarm, DC under voltage or genset start/stop function.
AC rating: 230V / 4A, DC rating: 4A up to 35VDC and 1A up to 60VDC

18
12. TECHNICAL SPECIFICATIONS - GX Device
GX Device USER INTERFACE
Display 2x16 character display
Remote Console yes
Buzzer yes
Victron communication ports
VE.Direct ports (always isolated) 1
Dedicated BMS-Can port (VE.Can not
2 paralleled RJ45 sockets – isolated
VE.Bus
2 paralleled RJ45 sockets – isolated
Non Victron-products
Canbus-BMS batteries Many battery brands. See here for details
Fronius PV Inverters See here for details
SMA PV Inverters
See here for details
ABB PV Inverters
See here for details
SolarEdge PV Inverters See here for details
COMMUNICATION
USB
1 USB Host port - not isolated
Ethernet 10/100 RJ45 socket
WiFi built-in
Bluetooth Smart
no
Micro SDcard slot
no
Second CAN-bus port no
VE.Can port no
Built-in RS485 no
IO
Programmable relay
(7)
n/a
Resistive tank level inputs no
Temperature sense inputs no
Digital Inputs no
PEFORMANCE
CPU
quad core
RAM 512MB
Max. VE.Direct devices (1) 25
CPU quad core
OTHER
Supply voltage powered internally, no external supply
Mounting Built-in
Operating temperature -20 to +50°C
Battery backupped clock yes