victron energy MPPT 150 SmartSolar Charge Controllers with CAN-Bus User Manual

victron energy MPPT 150 SmartSolar Charge Controllers with CAN-Bus

General Description

Bluetooth Smart built-in: dongle not needed
The wireless solution to set-up, monitor, update and synchronise multiple controllers using Apple and Android smartphones, tablets or other devices. Up to 10 units can be synchronised with Bluetooth.

VE.Direct port and two VE.Can ports Both ports
can be used for a wired data connection to a Color Control, Venus GX, PC or other devices. Up to 25 units can be synchronised with VE.Can.

Remote on-off input
On/off control by a VE.Bus BMS when charging Li-ion batteries.

Programmable relay
Can be programmed (a.o. with a smartphone) to trip on an alarm, or other events.

Optional: pluggable LCD display
Simply remove the rubber seal that protects the plug on the front of the controller and plug-in the display.

Ultra-fast Maximum Power Point Tracking (MPPT)
Especially in case of a clouded sky, when light intensity is changing continuously, an ultra fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% compared to slower MPPT controllers.

Advanced Maximum Power Point Detection in case of partial shading conditions
If partial shading occurs, two or more maximum power points may be present on the power-voltage curve. Conventional MPPTs tend to lock to a local MPP, which may not be the optimum MPP. The innovative SmartSolar algorithm will always maximize energy harvest by locking to the optimum MPP.

Outstanding conversion efficiency
No cooling fan. Maximum efficiency exceeds 98%. Full output current up to 40 °C (104 °F).

Extensive electronic protection
Over-temperature protection and power derating when temperature is high. PV reverse polarity protection.

Internal temperature sensor
Compensates absorption and float charge voltages for temperature. (range 6 °C to 40 °C)

Optional external voltage and temperature sensor (range -20 °C to 50 °C)
The Smart Battery Sense is a wireless battery voltage-and-temperature sensor for Victron MPPT Solar Chargers. The Solar Charger uses these measurements to optimize its charge parameters. The accuracy of the data it transmits will improve battery charging efficiency, and prolong battery life Alternatively, Bluetooth communication can be set up between a BM V-712 battery monitor with battery temperature sensor and the solar charge controller

For more detail please enter smart networking in the search box on our website.

Automatic battery voltage recognition
The controllers will automatically adjust to a 12 V, 24 V or a 48 V system one time only. If a different system voltage is required at a later stage, it must be changed manually, for example with the Bluetooth app or the optionel LCD display. Similarly, manual setting is required in case of 36 V system.

Flexible charge algorithm
Fully programmable charge algorithm, and eight preprogrammed algorithms, selectable with a rotary switch.

Adaptive three step charging
The SmartSolar MPPT Charge Controller is configured for a three step charging process: Bulk ­ Absorption ­ Float. A regular equalization charge can also be programmed: see section 3.12 of this manual.
Bulk During this stage the controller delivers as much charge current as possible to rapidly recharge the batteries.
Absorption W
hen the battery voltage reaches the absorption voltage setting, the controller switches to constant voltage mode. When only shallow discharges occur the absorption time is kept short in order to prevent overcharging of the battery. After a deep discharge the absorption time is automatically increased to make sure that the battery is completely recharged. Additionally, the absorption period is also ended when the charge current decreases to less than 2 A.
Float
During this stage, float voltage is applied to the battery to maintain it in a fully charged state.

Equalization
See section 3.12

Configuring and monitoring
Configure the solar charge controller with the VictronConnect app. Available for iOS & Android devices; as well as macOS and Windows computers. An accessory might be required; enter victronconnect in the search box on our website and see the VictronConnect download page for details.

For simple monitoring, use the MPPT Control; a panel mounted simple yet effective display that shows all operational parameters. Full system monitoring including logging to our online portal, VRM, is done using the GX Product range

Safety instructions

SAVE THESE INSTRUCTIONS – This manual contains important instructions that shall be followed during installation and maintenance.

| Danger of explosion from sparking
Danger of electric shock
---|---

• Please read this manual carefully before the product is installed and put into use.

• This product is designed and tested in accordance with international standards. The equipment should be used for the designated application only.

• Install the product in a heatproof environment. Ensure therefore that there are no chemicals, plastic parts, curtains or other textiles, etc. in the immediate vicinity of the equipment.

• Without a wire box the product is not allowed to be mounted in a user accessible area.

• Ensure that the equipment is used under the correct operating conditions. Never operate it in a wet environment

• Never use the product at sites where gas or dust explosions could occur.

• Ensure that there is always sufficient free space around the product for ventilation.

• 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.

• Protect the solar modules from incident light during installation, e.g. cover them.

• Never touch uninsulated cable ends.

• Use only insulated tools.

• Connections must always be made in the sequence described in section 3.4.

• Without a wire box the installer of the product must provide a means for cable strain relief to prevent the transmission of stress to the connections.

• In addition to this manual, the system operation or service
  manual must include a battery maintenance manual applicable to the type of batteries used.

• Use flexible multistranded copper cable for the battery and PV connections.
  The maximum diameter of the individual strands is 0,4 mm/0,125 mm² (0.016 inch/ AWG26).

A 25 mm² cable, for example, should have at least 196 strands (class 5 or higher stranding according to VDE 0295, IEC 60228 and BS6360).
An AWG2 gauge cable should have at least 259/26 stranding (259 strands of AWG26).
Maximum operating temperature: 90 °C.
Example of suitable cable: class 5 “Tri-rated” cable (it has three approvals:
American (UL), Canadian (CSA) and British (BS))
In case of thicker strands the contact area will be too small and the resulting high contact resistance will cause severe overheating, eventually resulting in fire.

• Maximum current through a MC4 terminal: 30 A
• The grounding terminal is located in the wiring compartment and is identified by the symbol below:

Installation

WARNING: DC (PV) INPUT NOT ISOLATED FROM BATTERY CIRCUIT. CAUTION: FOR PROPER TEMPERATURE COMPENSATION THE AMBIENT CONDITION FOR CHARGER AND BATTERY MUST BE WITHIN 5 °C.

General

• Mount vertically on a non-flammable surface, with the power terminals facing downwards. Observe a minimum clearance of 10 cm under and above the product for optimal cooling.

• Mount close to the battery, but never directly above the battery (in order to prevent damage due to gassing of the battery).

• Improper internal temperature compensation (e.g. ambient condition battery and charger not within 5 °C) can lead to reduced battery lifetime.
  We recommend using a direct battery voltage sense source (BM V, Smart Battery Sense or GX device shared voltage sense) if larger temperature differences or extreme ambient temperature conditions are expected.

• Battery installation must be done in accordance with the storage battery rules of the Canadian Electrical Code, Part I.

• The battery connections (and for Tr version also PV connections) must be guarded against inadvertent contact (e.g. install in an enclosure or install the optional WireBox).

Tr models: use flexible multistranded copper cable for the battery and PV connections: see safety instructions.
MC4 models: several splitter pairs may be needed to parallel the strings of solar panels. (Maximum current through a MC4 terminal: 30 A)

Grounding

• Battery grounding: the charger 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 plus and minus of the PV array should not be grounded. Ground the frame of the PV panels to reduce the impact of lightning.
  WARNING: WHEN A GROUND FAULT IS INDICATED, BATTERY TERMINALS AND CONNECTED CIRCUITS MAY BE UNGROUNDED AND HAZARDOUS.

PV configuration

• The controllers will operate only if the PV voltage exceeds
  battery voltage (Vbat).

• PV voltage must exceed Vbat + 5 V for the controller to start.
  Thereafter minimum PV voltage is Vbat + 1 V.

• Maximum open circuit PV voltage: 150 V or 250 V, depending on model.

For example:
24 V battery, mono- or polycristalline panels, max PV voltage 150 V:

• Minimum number of cells in series: 72 (2x 12 V panel in series or one 24 V panel).

• Recommended number of cells for highest controller efficiency:
  144 cells (4x 12 V panel or 2x 24 V panel in series).

• Maximum: 216 cells (6x 12 V or 3x 24 V panel in series).
  48 V battery, mono- or polycristalline panels, max PV voltage 250 V:

• Minimum number of cells in series: 144 (4x 12 V panel or 2x 24 V panel in series).

• Maximum: 360 cells (10x 12 V or 5x 24 panel in series).

Cable connection sequence (see figure 1)

First: connect the battery.
Second: if required, connect the remote on-off, and programmable relay
Third: connect the solar array (when connected with reverse polarity, the controller will heat up but will not charge the battery).
Torque: 2.4 Nm

Remote on-off

Use modes of the system on-off:
a. ON when the L and H terminal are interconnected (switch or relay contact) b. ON when the L terminal is pulled to battery minus (V< 3.5 V)
c. ON when the H terminal is high (2.9 V < VH < Vbat)
d. OFF in all other conditions

The recommended use of the remote on-off is:
a. A switch wired between the L-H pins
b. A switch wired between battery plus and the H-pin.
c) A switch between the L-pin and the charge disconnect terminal of a VE.Bus

CAN bus interface

The charger is equipped with two CAN bus RJ45 sockets.

The CAN bus on this charger is not galvanically isolated. The CAN bus is referenced to the minus battery connection.

The CAN bus interface will be referenced to ground if the minus pole of the battery is grounded. In case of a positive grounded system, a CAN isolation module will be needed to reference the CAN bus interface to ground.
The end of a CAN cable should have a bus terminator. This is achieved by inserting a bus terminator in one of the two RJ45 connectors and the CAN cable in the other. In case of a node (two CAN cables, one in each RJ45 connector), no termination is needed.

Supply voltage (V+ supply): 9 V-70 V
Maximum supply current: 500m A
Data rate: 250 kbps
CANH/CANL voltage tolerance: +/-70 VDC
CAN transceiver ISO specification: ISO 11898-2:2016

To provide maximum flexibility, the battery voltage is used for the V+ supply line of VE.Can. This means that all equipment connected to VE.Can are a permanent load to the battery.

Synchronised parallel operation

Several charge controllers can be synchronised with the CAN interface. This is achieved by simply interconnecting the chargers with RJ45 UTP cables (bus terminators needed, see section 3.6).
The paralleled charge controllers must have identical settings (e.g. charge algorithm). The CAN communication ensures that the controllers will switch simultaneously from one charge state to another (from bulk charge to absorption for example). Each unit will (and should) regulate its own output current, depending a.o. on the output of each PV array and cable resistance

In case of synchronized parallel operation, the network icon will blink every 3 seconds on all paralleled units.

The PV inputs should not be connected in parallel. Each charge controller must be connected to its own PV array.

Energy Storage System (ESS)

An Energy Storage System (ESS) is a specific type of power system that
integrates a power grid connection with a Victron Inverter/Charger, Venusdevice and battery system. It stores solar energy into your battery during the day, for use later on when the sun stops shining.

Please refer to the following manual how to setup an ESS:
https://www.victronenergy.com/live/ess:start

Configuration of the controller with the rotary switch

Fully programmable charge algorithm (see the software page on our website) and eight preprogrammed charge algorithms, selectable with a rotary switch:

Pos| Suggested battery type| Absorption V| Float V| Equalize V @%I nom| d V/dT mV/ °C
---|---|---|---|---|---
0| Gel Victron long life (OPz V) Gel exide A600 (OPz V) Gel MK| 28,2| 27,6| 31,8 @8%| -32
1| Gel Victron deep discharge Gel Exide A200
AGM Victron deep discharge Stationary tubular plate (OPzS)| 28,6| 27,6| 32,2 @8%| -32
2| Default setting
Gel Victron deep discharge Gel Exide A200
AGM Victron deep discharge Stationary tubular plate (OPzS)| 28,8| 27,6| 32,4 @8%| -32
3| AGM spiral cell
Stationary tubular plate (OPzS) Rolls AGM| 29,4| 27,6| 33,0 @8%| -32
4| PzS tubular plate traction batteries or| 29,8| 27,6| 33,4| -32
OPzS batteries| | | @25%|
5| PzS tubular plate traction batteries or| 30,2| 27,6| 33,8| -32
OPzS batteries| | | @25%|
6| PzS tubular plate traction batteries or| 30,6| 27,6| 34,2| -32
OPzS batteries| | | @25%|
7| Lithium Iron Phosphate (LiFePo 4 ) batteries| 28,4| 27,0| n.a.| 0

Note 1 : divide all values by two in case of a 12 V system and multiply by two in case of a 48 V system.
Note 2: equalize normally off, see sect. 3.9 to activate (do not equalize VRLA Gel and AGM batteries)
Note 3: any setting change performed with the pluggable LCD display or via Bluetooth will override the rotary switch setting. Turning the rotary switch will override prior settings made with the pluggable LCD display or via Bluetooth.

A binary LED code helps determining the position of the rotary switch.
After changing the position of the rotary switch, the LEDs will blink during 4 seconds as follows:

Switch position| LED Bulk| LED Abs| LED Float| Blink frequency
---|---|---|---|---
0| 1| 1| 1| Fast
1| 0| 0| 1| Slow
2| 0| 1| 0| Slow
3| 0| 1| 1| Slow
4| 1| 0| 0| Slow
5| 1| 0| 1| Slow
6| 1| 1| 0| Slow
7| 1| 1| 1| Slow

Thereafter, normal indication resumes, as described in the LEDs section.

LEDs

LED indication:
permanent on
blinking
off

Regular operation

Note (1): The bulk LED will blink briefly every 3 seconds when the system is powered but there is insufficient power to start charging.
Note (2): The LED(s) might blink every 4 seconds indicating that the charger is receiving data from another device, this can be:

• A GX Device (eg Color Control with a Multi in ESS mode)
• A VE.Smart network link via Bluetooth (with other MPPT chargers and / or a BM V or Smart Battery Sense)

Fault situations

Note (*3): E.g. calibration and/or settings data lost, current sensor issue.

For the latest and most up-to-date information about the blink codes, please refer to the Victron Toolkit app. Click on or scan the QR code to get to the Victron Support and Downloads/Software page.

Battery charging information

The charge controller starts a new charge cycle every morning, when the sun starts shining.

Lead-acid batteries: default method to determine length and end of absorption
The charging algorithm behaviour of MPPTs differs from AC connected battery chargers. Please read this section of the manual carefully to understand MPPT behaviour, and always follow the recommendations of your battery manufacturer.

By default, the absorption time is determined on idle battery voltage at the start of each day based on the following table:

(12 V values, adjust for 24 V))

The absorption time counter starts once switched from bulk to absorption.

The MPPT Solar Chargers will also end absorption and switch to float when the battery current drops below a low current threshold limit, the `tail current’. The default tail current value is 2 A.

The default settings (voltages, maximum absorption time and tail current) can be modified with the Victronconnect app via Bluetooth or via VE.Direct.

There are two exceptions to normal operation:

1. When used in an ESS system; the solar charger algorithm is disabled; and instead it follows the curve as mandated by the inverter/charger.
2. For CAN-bus Lithium batteries, like BYD, the battery tells the system, including the solar charger, what charge voltage to use. This Charge

Voltage Limit (C VL) is for some batteries even dynamic; changes over time; based on for example maximum cell voltage in the pack and other parameters.

When, in case of the above-mentioned exceptions, several solar chargers are connected to a GX device, these chargers will automatically be synchronised.

Variations to expected behaviour

1. Pausing of the absorption time counter
   The absorption time counter starts when the configured absorption voltage is reached and pauses when the output voltage is below the configured absorption voltage. An example of when this voltage drop could occur is when PV power (due to clouds, trees, bridges) is insufficient to charge the battery and to power the loads. When the absorption timer is paused, the absorption LED will flash very slowly.

2. Restarting the charge process The charging algorithm will reset if charging has stopped (i.e. the absorption time has paused) for an hour. This may occur when the PV voltage drops below the battery voltage due to bad weather, shade or similar.

3. Battery being charged or discharged before solar charging begins The automatic absorption time is based on the start-up battery voltage (see table). This absorption time estimation can be incorrect if there is an additional charge source (eg alternator) or load on the batteries. This is an inherent issue in the default algorithm. However, in most cases it is still better than a fixed absorption time regardless of other charge sources or battery state. It is possible to override the default absorption time algorithm by setting a fixed absorption time when programming the solar charge controller. Be aware this can result in overcharging your batteries. Please see your battery manufacturer for recommended settings.

4. Absorption time determined by tail current In some applications it may be preferable to terminate absorption time based on tail current only. This can be achieved by increasing the default absorption time multiplier. (warning: the tail current of lead-acid batteries does not decrease to zero when the batteries are fully charged, and this “remaining” tail current can increase substantially when the batteries age)

Default setting, LiFePO4 batteries
LiFePO4 batteries do not need to be fully charged to prevent premature failure. The default absorption voltage setting is 14,2 V (28,4 V). And the default absorption time setting is 2 hours. Default float setting: 13,2 V (26,4 V).

These settings are adjustable.
Reset of the charge algorithm:
The default setting for restarting the charge cycle is Vbatt < (Vfloat ­ 0,4 V) for lead-acid, and Vbatt < (Vfloat ­ 0,1 V) for LiFePO4 batteries, during 1 minute. (values for 12 V batteries, multiply by two for 24 V)

Automatic equalization

Automatic equalization is default set to `OFF’. With the Victron Connect app (see sect 1.12) this setting can be configured with a number between 1 (every day) and 250 (once every 250 days).

When automatic equalization is active, the absorption charge will be followed by a voltage limited constant current period. The current is limited to 8% or 25% of the bulk current (see table in sect. 3.5). The bulk current is the rated charger current unless a lower maximum current setting has been chosen.

When using a setting with 8% current limit, automatic equalization ends when the voltage limit has been reached, or after 1 hour, whichever comes first. Other settings: automatic equalization ends after 4 hours.

When automatic equalization is not completely finished within one day, it will not resume the next day, the next equalization session will take place as determined by the day interval.

Pluggable LCD display – Live data

Remove the rubber seal that protects the plug on the front of the controller and plug-in the display module. The display is hot-swappable; this means that the charger may be operational while the display is plugged in.

The following information will be displayed if the “-” button is pressed (in order of appearance):

Notes:

1. A valid temperature is shown, — = no sensor information or Err = invalid sensor data.
2. These items are only visible when relevant.

Pressing the “-” button or the “+”button for 4 seconds activates the autoscroll-mode. Now all LCD-screens will pop-up one by one with short intervals. The auto-scroll-mode can be stopped by pressing the “-” or the “+” button shortly.

Pluggable LCD display – History data

The charge controller tracks several parameters regarding the energy harvest. Enter history data by pressing the SELECT button when in monitor mode, a scrolling text will be visible. Press + or ­ to browse the various parameters as shown in the table below, press SELECT to stop scrolling and show the corresponding value. Press + or ­ to browse the various values. For the daily items it is possible to scroll back to 30 days ago (data becomes available over time), a brief popup shows the day number. Press SELECT to leave the historical menu and go back to the monitor mode, alternatively press SETUP to return to the scrolling text.

Note:
When the charger is not active (night time) the bulk, absorption and float icons will be shown as in the table above.
When the charger is active only one icon will be shown: the icon corresponding to the actual charge state.

Pluggable LCD display – Setup menu

a. To enter the SETUP Menu, press and hold the SETUP-button during 3
seconds. The “Menu” icon will light up and a scrolling text is visible.
b. Press the “-” or “+” button to scroll through the parameters.
c. The table below lists, in order of appearance, all parameters which can be
adjusted by pressing the “-” button.
d. Press SELECT: the parameter to change will now blink.
e. Use the “-” or “+” button to chose the desired value.
f. Press SELECT to confirm the change, the value will stop blinking, and the
change is made final.
g. Press SETUP to return to the parameters menu. With the “-” or “+” button
it is now possible to scroll to another parameter that needs change.
h. To return to normal mode, press SETUP during 3 seconds.

Notes:

1. The factory defined battery type can be selected with the rotary switch next to VE.Direct connector. The selected type will be shown here. The setting can alter between a factory defined type and “USER”.
2. These values can ONLY be changed for the battery type “USER”. The values in the table are for a 24 V-battery.
3. Automatic equalisation can be set to “OFF” (default) or a number between 1 (every day) and 250 (once every 250 days). See section 3.8 for more details about automatic equalisation.
4. To allow the charger to equalise the battery properly, use the manual equalise option only during absorbtion and float periods, and when there is sufficient sunlight. Press SELECT: the text “” will blink, press SELECT again to start equalisation. To terminate the equalisation mode prematurely, enter the setup menu and navigate to setup item 10, press SELECT: the text “” will blink, press SELECT again to stop equalisation. The manual equalise duration is 1 hour.33
5. Relay function (setting 11):

35 and note 7)

6. The parameter BMS present will be set to ‘Y’es internally when a compatible BMS is detected. Setting 31 can be used to revert the charger to normal operation (i.e. without BMS) by setting it manually to ‘N’o. (for example if the charger is moved to another location  were a BMS is not needed, it cannot be set the ‘Y’es manually.
7. Load control mode (setting 35).
   To use the relay (setting 11, value 10), or the VE.Direct port (setting 58, value 4) to control a load according the options below:

8. Backlight automatic turn-off has the following options: OFF=backlight remains lit all the time, ON=the backlight will dim 60s after the last keypress, AUTO=when charging the backlight is lit, otherwise it will dim
9. VE.Direct port RX pin mode (setting 57)

0

| Remote on/off (default). Can be used for on-off control by a VE.Bus BMS (instead of connecting the BMS to the remote on-off port.
VE.Direct non-inverting remote on/off cable needed (ASS030550310)

1

| No function.

2
3

| The RX pin can de-energize the relay (relay off), if relay function 10 of setting 11 has been set (see note 5, value 10). The load control options (setting 35) remain valid.
In other words, a AND function is created: both the load control and the RX pin must be high (value=2) or low (value=3) to energize the relay.

10. VE.Direct port TX pin mode (setting 58)

** For example to communicate with a Color Control panel (VE.Direct cable needed)
1| Pulse every 0.01kWh
2| Light dimming control (pwm normal) TX digital output cable needed (ASS0305505500)
3| Light dimming control (pwm inverted) TX digital output cable needed (ASS0305505500)
4| Load control mode: theTX pin switches according to load control mode, see note 7. TX digital output cable (ASS0305505500) needed to interface to a logic level load control port.

11. Press SELECT: the text “ ” will blink, press SELECT again to reset to original factory settings. The charger will re-boot. The history data will not be affected (kWh counter, etc).
12. Press SELECT: the text “ ” will blink, press SELECT again to erase the history data (kWh-counter, etc). Note that this takes a few seconds to complete.

Note: any setting change performed with the pluggable LCD display or via Bluetooth will override the rotary switch setting. Turning the rotary switch will override prior settings made with the pluggable LCD display or via Bluetooth.

Warning: Some battery manufacturers do recommend a constant current equalization period, and others do not. Do not use constant current equalization unless recommend by the battery supplier.

Troubleshooting

Return to VE for repair
The battery is not fully charged| A bad battery connection| Check battery connection
Cable losses too high| Use cables with larger cross section
Large ambient temperature difference between charger and battery (Tambient_chrg > Tambient_batt)| Make sure that ambient conditions are equal for charger and battery
Only for a 24 V or 48 V system: wrong system voltage chosen (e.g. 12 V instead of 24 V) by the charge controller| Set the controller manually to the required system voltage
The battery is being overcharged| A battery cell is defect| Replace battery
Large ambient temperature difference between charger and battery (Tambient_chrg < Tambient_batt)| Make sure that ambient conditions are equal for charger and battery

Using the pluggable LCD display or VictronConnect and the procedures
below, most errors can be quickly identified. If an error cannot be resolved, please refer to your Victron Energy supplier.

power supply used for powering the converter and the backlight is derived from either the solar-array or the battery.
If PV and battery voltage are both below 6 V the LCD will not light up. Make sure that the LCD display is properly inserted into the socket.
n. a.| The LCD does not light up (backlight works, no display, charger seems to work)| This may be due to low ambient temperature. If the ambient temperature is below -100C (140F) the LCD-segments can become vague. Below -200C (-40F) the LCD-segments can become invisible.
During charging the LCD-display will warm up, and the screen will become visible.
n. a.| The charge controller does not charge the battery| The LCD-display indicates that the charge- current is 0 Amps.
Check the polarity of the solar-panels. Check the battery breaker
Check if there is an error indication on the LCD Check if the charger is set to “ON” in the menu.
Check if the Remote input is connected. Check if the right system voltage has been selected
n. a.| High temperature: the thermometer icon blinks| This error will auto- reset after temperature has dropped.
Reduced output current due to high temperature.
Check the ambient temperature and check for obstructions near the heatsink.
Err 2| Battery voltage too high (>76,8 V)| This error will auto-reset after the battery voltage has dropped.
This error can be due to other charging equipment connected to the battery or a fault in the charge controller.
Err 17| Controller overheated despite reduced output current| This error will auto-reset after charger has cooled down.
Check the ambient temperature and check for obstructions near the heatsink.
Err 18| Controller over-current| This error will auto-reset.
Disconnect the charge controller from all power-sources, wait 3 minutes, and power up again.
If the error persists the charge controller is probably faulty.
Err 20| Maximum Bulk-time exceeded| This error can only occur when the maximun bulk-time protection is active. This error will not auto-reset.
This error is generated when the battery- absorption-voltage is not reached after 10 hours of charging.
For normal solar installations it is advised not to use the maximum bulk-time protection.
Err 21| Current sensor issue| The charge controller is probably faulty. This error will not auto-reset.
Err 26| Terminal overheated| Power terminals overheated, check wiring and fasten bolts if possible. This error will auto-reset.
Err 33| PV over-voltage| This error will auto-reset after PV-voltage has dropped to safe limit.
This error is an indication that the PV-array configuration with regard to open-circuit voltage is critical for this charger. Check configuration, and if required, re-organise panels.
Err 34| PV over-current| The current from the solar-panel array has exceeded 75 A. This error could be generated due to an internal system fault.
Disconnect the charger from all power- sources, wait 3 minutes, and power-up again. If the error persists the controller is probably faulty.
This error will auto-reset.
Err 38| Input shutdown due to battery over-voltage| To protect the battery from over-charging the panel input is shut down. To recover from this condition first disconnect the solar panels and disconnect the battery. Wait for 3 minutes reconnect the battery first and next the panels. If the error persists the charge controller is probably faulty.
Inf 65| Communication warning| Communication with one of the paralleled controllers was lost. To clear the warning, switch the controller off and back on.
Inf 66| Incompatible device| The controller is being paralleled to another controller that has different settings and/or a different charge algorithm.
Make sure all settings are the same and update firmware on all chargers to the latest version.
Err 67| BMS connection lost| Connection to the BMS lost, check the connection (Cabling / Bluetooth link). When the charger needs to operate in stand-alone mode again, change to setup menu setting ‘BMS’ from ‘Y’ to ‘N’ (setup item 31).
Err 114| CPU temperature too high| This error will reset after the CPU has cooled down. If the error persists, check the ambient temperature and check for obstructions near the air inlet and outlet holes of the charger cabinet.
Check manual for mounting instructions with regard to cooling. If error persists the controller is probably faulty.
Err 116| Calibration data lost| This error will not auto-reset.
Err 119| Settings data lost| This error will not auto-reset. Restore defaults in the setup menu (setup item 62).
Disconnect the charge controller from all power-sources, wait 3 minutes, and power up again.

For further questions see FAQ:
https://www.victronenergy.com/live/drafts:mppt_faq

Specifications, 150 V models

Specifications, 250 V models

References

• MPPT FAQ [Victron Energy]
• ESS - Start page [Victron Energy]

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