Phocos Any-Grid Series Operating manual

Pure Sine Wave Hybrid Inverter Charger with
MPPT Solar Charge Controller
PSW-H-5kW-230/48V
PSW-H-3kW-230/24V
User and Installation Manual
English
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1.0 Introduction ................................................................................................................................................... 2
2.0 Important Safety Information ....................................................................................................................... 2
3.0 Regulatory Information ................................................................................................................................. 3
4.0 Overview......................................................................................................................................................... 4
Functional Overview .......................................................................................................................................................................... 4
Product Overview ................................................................................................................................................................................ 5
5.0 Installation ..................................................................................................................................................... 6
Package Contents ................................................................................................................................................................................ 6
Mounting the Unit ............................................................................................................................................................................... 6
Battery Connection ............................................................................................................................................................................. 7
AC Input and AC Output Connection .......................................................................................................................................... 8
PV Connection ...................................................................................................................................................................................... 9
Final Assembly .................................................................................................................................................................................... 10
Remote Display Panel Installation ............................................................................................................................................... 10
Installing Multiple Units in Parallel or 3-Phase Configuration .......................................................................................... 12
6.0 BLE Communication ..................................................................................................................................... 16
7.0 Relay Contact................................................................................................................................................ 17
8.0 Operation ..................................................................................................................................................... 17
Inverter Power ON/OFF ................................................................................................................................................................... 17
Display and Control Module .......................................................................................................................................................... 18
Display Symbols ................................................................................................................................................................................. 19
Device Operation Settings ............................................................................................................................................................. 21
USB and Timer Settings ................................................................................................................................................................... 28
Screen Views of Current Values .................................................................................................................................................... 31
Operating Mode Description ........................................................................................................................................................ 37
9.0 Fault Reference Codes.................................................................................................................................. 40
10.0 Warning Codes ............................................................................................................................................. 42
11.0 Troubleshooting........................................................................................................................................... 43
12.0 Specifications ............................................................................................................................................... 47
Grid Mode ............................................................................................................................................................................................. 47
Off-Grid Mode ..................................................................................................................................................................................... 48
Battery Charging ................................................................................................................................................................................ 49
General ................................................................................................................................................................................................... 49
13.0 Warranty ....................................................................................................................................................... 50
14.0 Liability Exclusion ........................................................................................................................................ 50

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1.0 Introduction
Dear customer, thank you for choosing this quality Phocos product. The Any-Grid™ pure sine wave hybrid inverter /
charger series has numerous outstanding features and use-cases such as:
 Function as purely Off-Grid inverter for applications with no AC power source
 Function as solar enabled (optional) uninterruptible power supply (UPS) functionality for intermittent or
unstable AC sources
 Function as grid-connected or AC-generator-connected inverter to reduce energy demand from the AC
source by prioritizing solar and/or battery power, thus saving energy costs
 Grid injection of excess energy possible where it is legal, with or without a connected battery. Accidental
injection is prevented by requirement of a PIN code for activation
 Both neutral (N) and line (L) wires of the AC input are automatically disconnected (break-before-make relays)
from the AC output when the Any-Grid operates in Off-Grid mode
 High-voltage MPPT solar charge controller allows the connection of more solar panels in series (compared to
other Off-Grid solar charge controllers), typically eliminating the need for expensive combiner boxes
 Battery charging from an AC source such as the public power grid or a genset
 Compatibility with multiple battery types including lead-acid (gel, AGM and liquid electrolyte) and Lithium-
based batteries such as LiFePO4
 Battery-free mode: if an AC source is available, photovoltaic (PV / solar) power can be used as first priority,
even with no battery attached
 Removable wired display unit can be installed in a different room (up to 20 m / 66 ft cable can be used)
 All-in-one hybrid unit allows simple and fast installation, and easy configuration
 Monitor the unit in real-time with the PhocosLink BLE smartphone App
This manual describes the assembly, installation, operation and troubleshooting of this unit.
2.0 Important Safety Information
SAVE THESE INSTRUCTIONS: This manual contains important instructions for models PSW-H-5kW-230/48V
(referred to as 48 V model) and PSW-H-3KW-230/24V (referred to as 24 V model) that shall be followed during
installation and maintenance of the hybrid inverter/charger. Read and save this manual for future reference.
WARNING: The installation of this unit may only be undertaken by qualified personnel with appropriate
training. High voltages in and around the unit can cause serious injury or death. This unit must be installed in
accordance with rules and regulations at the site of installation.
CAUTION: A battery can present a risk of electrical shock, burn from high short-circuit current, fire or
explosion from vented gasses. Observe proper precautions.
WARNING: This unit must be connected to a permanent grounded wiring system. Be sure to comply with local
requirements and regulations when installing this unit.
BATTERY TYPE: Suitable for use with lead-acid (gel, AGM and liquid electrolyte) and Lithium-based batteries
such as LiFePO4.
OVERCURRENT PROTECTION FOR BATTERY: Install an overcurrent protection device with a minimum of 1000A
interrupt rating as close as possible to the battery terminal. Select a device rated for 1.25 times the nominal
current rating of the inverter/charger (see table below). An overcurrent protection device must be purchased
separately.
Any-Grid model PSW-H-5KW-230/48V PSW-H-3KW-230/24V
Overcurrent Protection Rating 175 Adc, min. 66 Vdc 210 Adc, min. 33 Vdc
Nominal Battery Voltage 48 Vdc 24 Vdc

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1. Before using the unit, read all instructions and cautionary markings on this unit, the batteries, the solar modules,
any connected loads.
2. Please do not disassemble or attempt to repair Phocos products. This unit does not contain user serviceable parts.
Damage to the warranty seal will lead to a loss of warranty of the product and can lead to injury.
3. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Switching
off the unit is not sufficient, turn off and / or disconnect all connections to the unit.
4. For safe operation of this unit, please adhere to appropriate cable size requirements in this manual.
5. Be very cautious when working with uninsulated metal tools on or around batteries. The can short-circuit
batteries or other electrical parts and could cause an explosion and / or injury.
6. Strictly follow the installation procedure when connecting or disconnecting AC or DC terminals. Please refer to
the “Installation” section of this manual for details.
7. Appropriate fuses or breakers are required near the battery supply and AC input and AC output of this unit.
8. WARNING: It is highly recommended and legally required in many countries to install a Type B residual current
device (RCD) between the AC output of the unit(s) and the AC loads to protect humans from hazardous electric
shock due to faulty AC wiring, faulty loads or a potential inverter fault.
Only in Off-Grid mode, the neutral (N) and ground (PE) of the AC output are automatically bridged inside the Any-
Grid to ensure the RCD’s functioning if the AC installation is wired correctly as a TN-S or TN-C-S earthing system. In
a TN-C-S installation the bridge between neutral (N) and ground (PE) must be between the public grid and AC
input of the Any-Grid to ensure that there is never more than one bridge between N and PE.
9. Never allow any AC or DC connections to be short-circuited. Do not connect to the mains when the battery input
is short-circuited.
10. Only qualified service persons may service this device. If errors persist after following the “Troubleshooting”
section in this manual, please send this unit back to a local Phocos dealer or service center for maintenance.
11. WARNING: Because this inverter (AC output) is not isolated from the PV input, only three types of PV modules are
acceptable for use: monocrystalline, polycrystalline and CIGS modules. To avoid any malfunction, do not connect
any PV modules with possible current leakage to the inverter. For example, positive- or negative-grounded PV
modules will cause current leakage to the inverter. When using CIGS modules, please be sure that neither the
positive nor negative PV cables are grounded. Grounding of the PV module frame is permitted and frequently
required by local law.
The battery is isolated from the inverter and PV input, therefore the battery positive or negative terminal may be
grounded if required.
12. CAUTION: It is highly recommended to use a surge arrester, also named surge protective device (SPD) near the PV
input terminals of this unit. This is to prevent damage to the unit from lightning, thunderstorms or other voltage
surges on the PV cables. The max. DC operating voltage of the SPD must be between 450 and 480 Vdc.
For example the Citel DS240-350DC is suitable.
13. CAUTION: It is highly recommended to use a surge arrester, also named surge protective device (SPD) near the AC
input terminals of this unit, if the AC input is used. This is to prevent damage to the unit from lightning,
thunderstorms or other voltage surges on the AC input conductors (for example coming from the public grid).
The max. AC operating voltage of the SPD must be between 275 and 300 Vac.
For example the Citel DS41S-230 (for most public grids or generators, higher protection) or Citel DS41S-320 (for
public grids with large voltage swings, lower protection) is suitable.
3.0 Regulatory Information
This product is CE and RoHS (Restriction of Hazardous Substances) compliant.
Please find the CE declaration at www.phocos.com.
This product is manufactured in an ISO 9001 (quality management) and ISO 14001 (environmental management)
certified facility.
This equipment is suitable for use in non-hazardous locations only.
This is a class A device: in a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.
RoHS

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4.0 Overview
Functional Overview
This pure sine wave hybrid inverter charger with solar charge controller (MPPT) can provide power to connected
loads by utilizing PV power, AC power and battery power. Most connections are optional, but there must be at least
one power source (AC or PV):
Fig. 1: System Overview
This unit has one each of the following power connections: battery, PV, AC input, AC output. The unit is designed to
provide continuous power from PV / battery or an AC source, depending on the set priority. Independently, the
priority for charging the battery can be set (the battery can only be charged from AC when the unit is not working in
Off-Grid mode). The switching time between Grid (also valid when an AC generator is used) and Off-Grid modes is
only 10 milliseconds (typical) when a single Any-Grid unit is used. Timers can be used to change the priorities based
on hourly time slots, this is useful for areas where grid power have differing costs throughout the day. The integrated
maximum power point tracking (MPPT) solar charge controller can handle particularly high PV voltages, allowing for
a simpler installation and lower costs than most Off-Grid solar charge controllers. Typically, no combiner boxes or
string fuses / diodes are required.
The pure sine wave AC output and the surge power capability (twice the continuous power rating) assure all types of
AC loads can be powered. Ensure that the peak power requirement of the loads is below the surge power capability
of this inverter.
Two special functions allow even more flexibility: Battery-Free mode and Grid Injection.
In Battery-Free mode, no battery is connected to the unit and an AC source must be present. The unit will then
provide as much power from PV as is available to supply loads, adding any missing power from the AC source. If there
is more PV power available than can be utilized by the loads, then the PV power is reduced to ensure no power feed-
in into the grid.
The Grid Injection functionality allows feeding any excess power into the grid. If there is excess PV power beyond
what is utilized by the load and for battery charging, this power can be fed into the public grid to take advantage of
net metering or feed-in tariffs. In this way all the PV power can be used even if the battery is full and the loads do not
require all the available PV power. Feeding into the grid may be prohibited in some areas so this function is locked by
a PIN code to avoid accidental grid injection.
PV Panels (optional)
Battery
(optional)
AC Loads
Public Grid (optional)*
AC Generator
(optional)
*
Removable Display
Phocos Any-Grid™
Hybrid Inverter Charger
(up to 9 units parallel or 3-phase) * Any-Grid™ accepts one AC input

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Product Overview
Fig. 2: Product Overview
1. LC-display
2. Inverter status indicator
3. Charging indicator
4. Fault indicator
5. Function buttons
6. AC output on/off switch (solar charging still functions when the AC output is powered off)
7. AC input terminals (public grid or AC generator connection)
8. AC output terminals (load connection)
9. PV terminals
10. Battery terminals
11. Resettable circuit breaker
12. Remote display unit communication port
13. Parallel communication port (for inter-connecting multiple Any-Grid units)
14. Current sharing port (for inter-connecting multiple Any-Grid units)
15. Relay contact
16. USB-OTG communication port
17. Output source indicators and USB function indicators
18. Battery Management System (BMS) communication port: CAN, RS-485 and RS-232
19. RS-232 communication port
Display Unit
Pin 1 Pin 8

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5.0 Installation
Package Contents
Before installation, please inspect the unit to ensure nothing inside the package is damaged. Package contents:
 Any-Grid unit
 This manual
 RS-232 cable (SUB-D to RJ-45)
 Parallel communication cable (gray connectors, needed for systems with multiple Any-Grid units)
 Current sharing cable (green connectors, needed for systems with multiple Any-Grid units on a phase)
 3 pcs. ring terminals for battery connection (2 pcs. required for installation)
Mounting the Unit
Before connecting all wirings, please take off bottom cover by removing two screws as shown below and carefully
sliding the cover down. Before removing the cover entirely, remove the 3 wire harnesses by their connectors (Fig. 3).
Fig. 3: Removal of bottom cover Fig. 4: Minimum distance to other objects
WARNING: Only mount this unit on concrete or another solid non-combustible
surface capable of securely holding the weight of the unit.
 Install this inverter at eye level to ensure legibility of the display
 Ensure the ambient temperature is between -10 ~ 50 °C, 14 ~ 122 °F at all
times
 Avoid excessively dusty environments
 The unit is designed for vertical installation on a solid wall
 Ensure a minimum distance to other objects and surfaces as shown in
Fig. 4 to guarantee sufficient heat dissipation and to have enough space
for removing wires.
 Install in a room where noise is not an issue as the unit has fans for cooling
Install the unit by using three M4 or M5 screws (Fig. 5) appropriate for the weight of
the unit and wall material, use wall plugs. The bottom screw hole is only accessible
after removal of the bottom cover (Fig. 3). This bottom cover must remain removed
for the rest of this “Installation” chapter until instructed otherwise.
Fig. 5: Mounting holes

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Battery Connection
WARNING: The installation of this unit may only be undertaken by qualified personnel with appropriate
training. High voltages in and around the battery and unit can cause serious injury or death. This unit must be
installed in accordance with rules and regulations at the site of installation.
WARNING: Choose a suitable battery fuse as outlined in the chapter “Important Safety Information”, section
“OVERCURRENT PROTECTION FOR BATTERY”.
WARNING: Ensure the battery cables are sized according to the table below. Inadequate battery cables can
cause excessive heat or fire during operation.
Recommended battery cable cross-section, battery size and fuse / DC circuit breaker rating:
Any-Grid model PSW-H-5KW-230/48V PSW-H-3KW-230/24V
Battery cable cross-section 35 ~ 50 mm², AWG 0 ~ AWG 2
Min. battery capacity (lead-based)
48 V / 200 Ah 24 V / 200 Ah
Battery current capability 140 Adc continuous
280 Adc surge (5s)
168 Adc continuous
336 Adc surge (5s)
Fuse / breaker rating 175 Adc, min. 66 Vdc 210 Adc, min. 33 Vdc
Steps to connect the battery:
1. WARNING: Ensure the battery cables are not yet connected to the battery.
CAUTION: Ensure none of the cable insulation is jammed in the ring terminal before crimping.
Crimp one battery ring terminal (included) to each the positive and negative battery lead (unit side). If choosing
ring terminals other than the included ones, make sure they have an inside ring diameter of 6.4 mm, 0.25 in to fit
the M6 battery terminal bolts of the Any-Grid securely.
2. Remove the pre-installed nuts from the battery terminal bolts. Insert the ring terminal of the battery cables
through the casing holes and flat onto the corresponding battery terminal (Fig. 6). Screw down the previously
removed nuts with a torque of 2 ~ 3 Nm (1.5 ~ 2.2 lbf⋅ft). Ensure the ring terminals sit flush on the connectors.
CAUTION: Do not apply any anti-oxidant substances to the battery terminals of the unit before they are
adequately fastened.
CAUTION: Over-tightening the terminal nuts can cause damage to the terminal, under-tightening can
cause a loose connection and excessive heat during operation, make sure to use the prescribed torque.
3. Install the fuse holder or breaker in the positive battery cable (or negative, if the battery must be positive-
grounded).
WARNING: Ensure the fuse is not yet installed or make sure the circuit breaker is secured in the open
position for the rest of the installation procedure until instructed to do otherwise.
4. Connect the other end of the battery cables to the battery. Ensure the polarity of the battery terminals on the
Any-Grid match the battery polarity.
CAUTION: Reverse polarity connection to the battery may damage the unit.
Fig. 6: Battery connection

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AC Input and AC Output Connection
WARNING: Before connecting an AC source to the AC input of the Any-Grid, install an AC circuit breaker
between the Any-Grid and AC input power source. This will ensure the inverter can be securely disconnected
during maintenance and fully protected from over current of AC input. Make sure the breaker is open / off for
the rest of the installation procedure until instructed otherwise.
WARNING: Ensure that the installation has adequate grounding and connect the protective earth (PE)
terminals to this ground as instructed below. Failure to do so can cause serious injury or death once the unit is
powered up or the AC source is activated via its breaker.
WARNING: Ensure the AC cables are sized according to the table below. Inadequate AC cables can cause
excessive heat or fire during operation.
CAUTION: Do not connect an AC source to the “AC OUTPUT” labelled terminal of the unit as this will destroy
the unit. Only connect it to the “AC INPUT” labeled terminal.
Recommended AC cable cross-section and AC circuit breaker rating:
Any-Grid model PSW-H-5KW-230/48V PSW-H-3KW-230/24V
AC input and output cable cross-section 4 ~ 10 mm², AWG 7 ~ AWG 11
Circuit breaker rating 40 Aac, min. 280 Vac 30 Aac, min. 280 Vac
Steps to connect the AC source and AC loads:
1. WARNING: Ensure the battery cable fuse is removed or breaker is secured in the open position.
WARNING: Ensure the AC source breaker is secured in the open position and there is no voltage on the
conductors before continuing.
2. Remove 10 mm / 0.4 in of insulation for the six AC conductors (neutral “N”, live “L” and protective earth “PE”
for the AC source and loads).
3. Insert the three AC source wires through the rectangular casing hole marked “AC INPUT”. Insert the “PE”
protective conductor first into the corresponding AC input terminal and tighten that terminal screw
with a torque of 1.4 ~ 1.6 Nm (1.0 ~ 1.2 lbf⋅ft). Repeat for the neutral “N” and live “L” conductors.
Fig. 7: AC input connection
4. Insert the three AC load wires through the rectangular casing hole marked “AC OUTPUT”. Insert the “PE”
protective conductor first into the corresponding AC output terminal and tighten that terminal screw
with a torque of 1.4 ~ 1.6 Nm (1.0 ~ 1.2 lbf⋅ft). Repeat for the neutral “N” and live “L” conductors.

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Fig. 8: AC Output connection
5. Make sure the six wires are securely connected.
CAUTION: Over-tightening the terminal screws can cause damage to the terminal, under-tightening
can cause a loose connection and excessive heat during operation, make sure to use the prescribed
torque. Ensure none of the conductor insulation is jammed between the terminal contacts.
CAUTION: Ensure the polarity is correct on all wires. Failure to do so may cause a short-circuit at the
AC source when several units are working in parallel operation.
PV Connection
WARNING: Before connecting the PV module array to the PV input of the Any-Grid, install an DC circuit
breaker between the Any-Grid and PV modules. This will ensure the inverter can be securely disconnected
during maintenance and is fully protected from over current of the PV modules. PV modules produce a
dangerous voltage even with little light. Make sure the breaker is open / off for the rest of the installation
procedure until instructed otherwise.
WARNING: Ensure the PV cables are sized according to the table below. Inadequate PV cables can cause
excessive heat or fire during operation.
Recommended battery cable cross-section and DC circuit breaker rating:
Any-Grid model PSW-H-5KW-230/48V PSW-H-3KW-230/24V
PV cable cross-section 2.5 ~ 16 mm², AWG 5 ~ AWG 13
Circuit breaker rating 20 Adc, min. 450 Vdc
PV Module Selection:
For selecting the correct PV module configuration, please consider the following points:
 The total open circuit voltage (Uoc / Voc) of the PV module array may never exceed the values in the table
below. Consider the coldest possible temperatures at the location of installation together with the
temperature coefficient of the PV modules used.
 The total maximum power point voltage (Umpp / Vmpp) of the PV module array must be above the
minimum values in the table below. Consider the warmest PV module temperatures at the location of
installation.
 The total maximum power point current (Impp / Ampp) of the PV module array may not exceed the value in
the table below.
Any-Grid model PSW-H-5KW-230/48V PSW-H-3KW-230/24V
Max. PV voltage (Uoc) 450 Vdc
Min. PV mpp voltage (Umpp) 120 Vdc 90 Vdc
Max. mpp current (Impp) 22.5 Adc (up to 18 Adc actually usable)

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Steps to connect the AC source and AC loads:
1. Remove 10 mm / 0.4 in of insulation from the positive and negative PV cables.
2. Insert the two PV wires through the rectangular casing hole marked “PV input”.
3. Insert the positive PV cable into the “PV+” terminal and the negative PV cable into the “PV-“ terminal.
CAUTION: Ensure correct polarity.
Fig. 9: PV connection
4. Tighten both terminal screws with a torque of 1.4 ~ 1.6 Nm (1.0 ~ 1.2 lbf⋅ft) and make sure the two wires are
securely connected.
CAUTION: Over-tightening the terminal screws can cause damage to the terminal, under-tightening
can cause a loose connection and excessive heat during operation, make sure to use the prescribed
torque. Ensure none of the cable insulation is jammed between the terminal contacts.
Final Assembly
After Battery, PV and AC wiring is completed, please slide the bottom cover back up on the unit, re-connect the 3
wire harnesses removed in Fig. 3, and secure it by fastening the two screws as shown below.
Fig. 10: Re-applying bottom cover
Remote Display Panel Installation
The display module can optionally be removed and installed in a remote location with an optional communication
cable. Please take the following steps to implement this remote panel installation. Use a standard straight Ethernet
patch cable (Cat5 or higher) with male RJ45 connectors on both sides (not included). A maximum cable length of 20
meters or 66 feet is recommended. Follow the steps below to remove the display module and install it away from the
inverter unit.

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1. Remove the screw holding the bracket on the bottom of the display module (Fig. 11  ①) and push down
the display unit from the case slightly while removing the metal bracket.
2. Keep pushing the display module down, taking care not to damage the connected cable (Fig. 11  ②).
3. Remove the cable connected to the display module (Fig. 11  ③).
4. Screw the bracket removed in Fig. 11  ① back in place (Fig. 11  ④).
Fig. 11: Remote display removal
5. Drill the three mounting holes in the marked distances of 70 mm, 2.75 into each other (Fig. 12, left). Use M3,
size no. 4 diameter screws. The screw heads must be between 5 ~ 7 mm, 0.2 ~ 0.3 in. Screw the bottom two
screws into the wall where the display module is to be mounted and let the screw heads protrude 2 mm,
0.08 in. from the wall. Slide the display down on the protruding screw heads. Now insert and tighten the
third screw at the top (Fig. 12, right).
Fig. 12: Remote display mounting hole locations
6. Install one end of the Ethernet patch cable (not included) into socket (Fig. 2) on the display module
(right side). Install the other end of the Ethernet patch cable into socket (Fig. 2) on the Any-Grid unit.
7. If using Lithium batteries designed for battery management system (BMS) communication such as
Pylontech batteries, please visit www.phocos.com for a current list of batteries supported with BMS
communication. Connect the battery BMS cable to socket (Fig. 2).
CAUTION: Ensure the battery and BMS is compatible with the Any-Grid and that the pin location is
correct before connection. Damage to any communication port or the battery due to incorrect
connection is not covered by warranty.
Remove
Push
Pull
Screw in

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Pin (see Fig. 2) 1 2 3 4 5 6 7 8
Function RS-232 RX RS-232 TX RS-485 B +12 Vdc RS-485 A CAN H CAN L GND
Installing Multiple Units in Parallel or 3-Phase Configuration
Introduction
This entire chapter is only relevant if using more than one Any-Grid unit. Multiple Any-Grid units of the same model
number can be used either in parallel on a single phase, or in a 3-phase configuration with a common neutral. All
units must be connected to the same battery bank. This chapter is an addition to all other sections above in the
chapter “Installation”, please adhere to all guidelines and safety instructions accordingly.
Parallel operation on a single phase is possible with up to 9 units.
Alternatively, 3-phase configuration is possible, whereby at least one unit must be installed on each of the 3 phases
and a maximum of 7 units on a phase. The total number of units may not exceed 9 in any case.
Mounting the Units
When installing multiple units, please keep a minimum distance between the units as shown in Fig. 13.
Fig. 13: Remote display mounting hole locations
Connections
Use the cable cross-sections, tightening torque and connectors as described for a single unit.
Battery Connection: Make sure to use a separate DC fuse or circuit breaker for each unit. Instead of connecting each
unit to the battery, connect each positive battery cable to a bus bar, and each negative battery cable to a second bus
bar. These bus bars are then connected to the battery terminals. The cross-section of the bus bars, and the cables
from the bus bars to the battery terminals should equal the recommended battery cable cross-section per unit, times
the number of units connected to it.
The minimum recommended battery capacity for lead-based batteries is 200 Ah per connected Any-Grid. For
example, in a system with 3 units, the battery bank should have a capacity of at least 600 Ah.
AC Connections: Regarding AC input and output, please also follow the same principle. Use the wiring cross-section
and circuit breaker as defined for each individual unit, then attach those wires to bus bars. The bus bars from the AC
input are then connected to the AC source, the bus bars from the AC output are connected to the distribution panel
and loads.
PV Connections: Use the PV connection as described for individual units. Each unit must be connected to its own PV
array and must not have any electrical contact to any other units’ PV arrays.
CAUTION: Please install at least a breaker at the battery terminals and AC input of every individual Any-Grid
unit. This will ensure each unit can be securely disconnected during maintenance and fully protected from
over-current of battery or AC input. Use the breaker ratings as described in the chapters “Battery Connection”
and “AC Input and AC Output Connection”.

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CAUTION: All inverters must share the same battery bank. Otherwise, the inverters will go into fault mode.
WARNING: Ensure all circuit breakers are open / disabled before wiring the units so that there is no voltage on
the battery, AC and PV wires.
General rules for the communications connections (see Fig. 2  ⓭ Parallel Communication Port and ⓮ Current
Sharing Port):
1. Every unit must have both parallel communication ports occupied. These ensure phase synchronization and
synchronization of parameters between the units.
2. Current sharing ports must only be occupied for those units where there is more than one unit on that
particular phase. If there is only one unit on a phase, then current sharing cables must not be used. These
current sharing cables ensure that all units on one phase operate at the same AC power output level.
3. Every parallel communication or current sharing cable used, must either be connected directly between two
neighboring units, or with a maximum of one unit between them.
4. Connecting parallel communication cables, assuming units are numbered from 1 to ≤ 9 from left to right:
a) Connect the left black parallel communication port of unit 1 to the right port on unit 2.
b) Connect the right port of unit 1 to the left port of unit 3.
c) Connect the left port of unit 2 to the to the right port of unit 4.
d) Continue connecting the right port of each odd-numbered unit to the left port of the next odd-
numbered unit. Continue connecting the left port of each even-numbered to the right port of the
next even-numbered unit, until there are only two unoccupied black ports.
e) Connect the unoccupied black port of the last unit to the unoccupied black port of the second-to-
last unit.
5. Connecting current sharing cables just like step 4, assuming units are numbered from 1 to ≤ 9 from left to
right on a particular phase (the must be no connection of current sharing cables between any two phases’
units!):
a) Connect the left green current sharing port of unit 1 to the right port on unit 2.
b) Connect the right port of unit 1 to the left port of unit 3.
c) Connect the left port of unit 2 to the to the right port of unit 4.
d) Continue connecting the right port of each odd-numbered unit to the left port of the next odd-
numbered unit. Continue connecting the left port of each even-numbered to the right port of the
next even-numbered unit, until there are only two unoccupied green ports on the particular phase.
e) Connect the unoccupied green port of the last unit to the unoccupied green port of the second-to-
last unit.
f) Repeat steps 5a to 5e for further phases with more than one unit.
The following section will show a few examples of how the parallel communication and current sharing cables are
mounted. For better visibility download this manual in color at www.phocos.com.
Example: 5 Units on Single Phase
Note: this example excludes PV wiring, circuit breakers and bus bars for better visibility.

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Fig. 14: Power connections of 5 units on a single phase
Fig. 15: Communication connections of 5 units on a single phase
Example: 7 Units on Phase 1, 1 Unit on Phase 2, 1 Unit on Phase 3
Note: this example excludes PV wiring, circuit breakers and bus bars for better visibility.
Fig. 16: Power connections of 7 units on P1, 1 unit on P2, 1 unit on P3
Fig. 17: Communication connections of 5 units on a single phase
Notice that because there is only one unit on phase 2 (P2) and phase 3 (P3), there are no green current sharing cables
connected to these two units.

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Commissioning
Parallel in Single Phase
CAUTION: Before continuing, ensure the wiring is correct according to the previous chapter, particularly that
all units are connected to the same neutral wire. Ensure that all AC input breakers and AC output breakers are
open on each individual Any-Grid unit and that each unit is turned off with its AC output on/off switch. Ensure
each unit is disconnected from PV, but connected to the battery via its battery breaker / fuse. The battery
breaker must be closed / inserted to ensure each unit can function for commissioning.
Follow the following steps once the wiring is completed.
1. Turn on one unit with its AC output on/off switch
2. In the Settings Menu (see chapter “Device Operation Settings”) navigate to settings menu 28.
3. Turn the AC output on/off switch off to deactivate the AC output. The unit will remain in Stand-By mode for
under a minute and the display will stay on for this time.
4. Set the menu number 28 setting from the default value “Single” (SIG) to “Parallel” (PAL). This will not be
possible if the unit is not turned off as described in the previous step.
5. Once the setting is confirmed, wait for the unit to shut down automatically, the display will then turn off
completely.
6. Repeat steps 1 to 5 with each further unit connected in parallel.
7. Now turn on each unit. One unit will automatically and randomly be defined as the master unit and will
show the master screen, all other units will show the slave screen on their display:
Screen of Master unit Screen of Slave unit(s)
8. Switch on the AC input breaker of each unit in quick succession, if an AC source is installed. If this takes too
long, then some units may show fault 82 on their screen, but they will restart automatically and upon
detecting a valid AC input, will function normally.
9. It’s better to have all inverters connect to utility at the same time. If not, it will display fault 82 in following-
order inverters. However, these inverters will automatically restart. If detecting AC connection, they will work
normally.
Screen of Master unit Screen of Slave unit(s)
10. If there are no further faults displayed, the parallel system installation is complete. The breakers on the AC
output of each unit can be switched on and then loads may be connected.
3-Phase, One or more Units per Phase
CAUTION: Before continuing, ensure the wiring is correct according to the previous chapter, particularly that
all units are connected to the same neutral wire. Ensure that all AC input breakers and AC output breakers are
open on each individual Any-Grid unit and that each unit is turned off with its AC output on/off switch. Ensure
each unit is disconnected from PV, but connected to the battery via its battery breaker / fuse. The battery
breaker must be closed / inserted to ensure each unit can function for commissioning.

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Follow the following steps once the wiring is completed.
1. Turn on one unit on phase 1 with its AC output on/off switch
2. In the Settings Menu (see chapter “Device Operation Settings”) navigate to settings menu 28.
3. Turn the AC output on/off switch off to deactivate the AC output. The unit will remain in Stand-By mode for
under a minute and the display will stay on for this time.
4. Set the menu number 28 setting from the default value “Single” (SIG) to “Phase L1” (3P1). This will not be
possible if the unit is not turned off as described in the previous step.
5. Once the setting is confirmed, wait for the unit to shut down automatically, the display will then turn off
completely.
6. Repeat steps 1 to 5 with each further unit connected on the same phase 1. Then repeat steps 1 to 5 for each
unit in phase 2 and, instead of choosing “Phase L1” in step 4, choose “Phase L2” (3P2). Then repeat steps 1 to
5 for each unit in phase 3 and, instead of choosing “Phase L1” in step 4, choose “Phase L3” (3P3).
7. Now turn on each unit. The units will show the following in their respective screens:
Screen of Units on Phase L1 Screen of Units on Phase L2 Screen of Units on Phase L3
8. Switch on the AC input breaker of each unit in quick succession, if an AC source is installed. If this takes too
long, then some units may show fault 82 on their screen, but they will restart automatically and upon
detecting a valid AC input, will function normally.
9. If a valid AC input source is detected and the three phases match with the with unit settings in settings
menu number 28, they will work normally. Otherwise, the symbol will flash and Grid Mode will not
function. In this case, check that the order or the three phases is correct. If necessary, turn off all units and
then switch the setting in settings menu number 28 for all Phase L2 units to Phase L3 and vice-versa by
following steps 1 to 5. Then continue with step 7. The displays will now show the following:
Screen of Units on Phase L1 Screen of Units on Phase L2 Screen of Units on Phase L3
10. If there are no further faults displayed, the 3-phase system installation is complete. The breakers on the AC
output of each unit can be switched on and then loads may be connected.
6.0 BLE Communication
This unit is equipped with wireless BLE functionality. Download the
“PhocosLink” App from the Google Play™ store or Apple’s App Store® with
an Android™ or iOS device, respectively. Once the App is installed, use it to
connect to the Any-Grid unit with the BLE pairing password “123456”. The
typical maximum communication distance is approximately 6 ~ 7 meters.
Google Play™ Apple App Store®

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7.0 Relay Contact
There is one potential-free relay contact (3A / 250 Vac) available on the display module (Fig. 2  ). It may be used
to signal an external device when battery voltage reaches a low level, such as a gasoline or diesel generator. The relay
may be wired with normally closed (NC) or normally open (NO) logic. The table below indicates the relay states
between the common (C) and NO, as well as between C and NC contacts.
Any-Grid Status Condition
Relay terminals:
NC & C NO & C
Powered Off or
Battery-free mode Unit is off and AC output is not powered. Closed Open
Powered On
Output is
powered
from
Battery
power or
Solar
power.
Settings Menu 01
set as “Utility / AC
input first” (USB)
or “Solar / PV first”
(SUB)
Battery voltage < Low DC warning
voltage (2 Vdc for the 48 V model / 1
Vdc for the 24 V model above the
value in settings menu 29)
Open Closed
Battery voltage > Settings menu 13
or battery charging reaches Floating
phase
Closed Open
Settings Menu 01
is set as SBU
Battery voltage < Settings menu 12 Open Closed
Battery voltage > Settings menu 13
or battery charging reaches Floating
phase
Closed Open
8.0 Operation
Inverter Power ON/OFF
Fig. 18: Display module ON/OFF load button location
Ensure the “ON/OFF” switch located on the display module (Fig. 18) is in the “OFF” position after the initial installation
(the button must not be depressed).
Now activate the circuit breakers or insert the fuses to energize the various inputs and outputs in the following order
(skip any that are not connected):
1. Battery
2. AC input
3. PV input
4. AC output
Next, press the “ON/OFF” switch to turn on the AC output and thus connected AC loads and the entire unit.

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If the “ON/OFF” switch is in the “OFF” position, then the unit will be completely off when there is insufficient sunlight.
If PV modules are connected and there is sufficient PV voltage, the unit and display will wake up automatically to
charge the batteries during the day. Once the PV voltage drops below the threshold, the unit will again turn
completely off to save energy during the night. The AC output and thus the AC loads will remain off as long as the
“ON/OFF” switch is in the “OFF” position.
Display and Control Module
The display and control module, shown in Fig. 19, includes six LED indicators, six function buttons, an ON/OFF
button and a LC-display, indicating the operating status and allowing the programming of settings parameters.
Fig. 19: Display module buttons and indicators
Indicator Description
LED Indicator Color Solid On / Flashing Description
Source LED 1 Green Solid On AC output powered by AC input
Source LED 2 Green Solid On AC output powered by PV
Source LED 3 Green Solid On AC output powered by battery
Status
indicators
Green
Solid On AC output powered by AC input (Grid mode)
Flashing AC output powered by integrated inverter (Off-
Grid mode)
Green Solid On Battery is fully charged
Flashing Battery is charging
Red Solid On Fault mode
Flashing Warning mode
Function Buttons
Function Button Description
Escape / close Exit settings without confirming
USB function setting Select USB OTG functions
Timer setting for AC output source priority Setup timer for prioritizing AC output source
Timer setting for the battery charger source
priority Setup timer for prioritizing battery charger source
LC-Display Source
LED 2
Source
LED 1
Source
LED 3
Inverter ON/OFF
button
Function
buttons
Status
indicators

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Up To last selection
Down To next selection
Enter To confirm/enter the selection in setting mode
Display Symbols
Fig. 20: LC-Display symbols
Symbol Description
Input Information
Indicates AC input
Indicates PV input
Indicates input voltage, input frequency, PV voltage, charging current,
charging power, battery voltage.
Settings menu and Fault Information
Indicates the setting menus
Indicates warning and fault codes.
Warning: flashing with warning code.
Fault: shown with fault code.
Output Information
Indicates output voltage, output frequency, load in % of nominal power,
load in VA, load in Watt and discharging current.
Battery Information
Indicates battery level in 0 ~ 24%, 25 ~ 49%, 50 ~ 74% and 75 ~ 100%
(left to right) increments.