SOLAX EPS 60 kW Parallel Box Installation Guide

: June 12, 2024
: SOLAX

Table of Contents

EPS 60 kW Parallel Box
Product Information: Quick Installation Guide for Parallel
System Diagram
Packing List
Cable Preparation
Mounting
Connection Overview of Parallel BOX
Important Warning!
- Product Usage Instructions: Quick Installation Guide for
Step 1: Preparation
Step 2: Installation of Parallel BOX
Step 3: Connection of Grid Distribution Box Side
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

EPS 60 kW Parallel Box

Product Information: Quick Installation Guide for Parallel

System

The Quick Installation Guide for Parallel System provides
instructions on how to install and connect a parallel system. The
guide includes a system diagram, a packing list, cable preparation
instructions, and mounting instructions. The parallel system
includes a hybrid inverter, a master unit, and up to six slave
units.

System Diagram

The system diagram shows the cables that will be introduced in
the manual. Only cables marked with majuscule in the diagram will
be described in detail.

Packing List

Expansion bolt 4, Gasket 4
Cold-pressed terminal (22-6) 3, (22-8) 5
Cold-pressed terminal(5-5) * 28
RJ 45 terminals * 1
Communication terminal (green) * 1 (choose a suitable one when
installing)
Board marking paper *1
4AWG European terminals (25-18) * 5
M4 inner hexagon bolt * 1
Ground terminal (length, 250mm) 1 Natural line(Black) 1
(For Australia)
Ground terminal (length, 30mm) * 1 (For other areas)

Cable Preparation

To prepare the cables, press the terminal harness and connect
the connectors according to the correct line sequence (R-R, S-S,
T-T, N-N).

Mounting

Before installation, affix the empty cabinet on the wall first.
Use the attachment bag of control cardboard drill four 8 holes with
a depth of at least 80mm. Tighten the expansion tubes, and then
remove the safety bezel.

Connection Overview of Parallel BOX

The parallel system includes a hybrid inverter, a master unit,
and up to six slave units. The connection overview shows the EPS
connection, backup load connection, grid connection, and
communication connection.

Important Warning!

Every cable must be connected according to the correct line
sequence (R-R, S-S, T-T, N-N), otherwise any small misoperation may
cause the system to fail.

Product Usage Instructions: Quick Installation Guide for

Parallel System

Use the following instructions to install and connect a parallel
system:

Step 1: Preparation

Prepare the cables by pressing the terminal harness and
connecting the connectors according to the correct line sequence
(R-R, S-S, T-T, N-N).
Affix the empty cabinet on the wall first.
Use the attachment bag of control cardboard drill four 8 holes
with a depth of at least 80mm.
Tighten the expansion tubes.
Remove the safety bezel.

Step 2: Installation of Parallel BOX

Connect the EPS cables according to the correct line sequence
(R-R, S-S, T-T, N-N).
Connect the backup load cables.
Connect the grid cables through the GRID port on the bottom of
the BOX to corresponding Load ports (R-bar, S-bar, T-bar, N-bar,
G-bar) by screwdriver.
Connect the communication cables using a common network cable
and the RJ45 terminal in the accessory kit. Insert the cable into
the RJ45 terminal, then use diagonal pliers to tighten the cable
and insert it into the corresponding port.

Step 3: Connection of Grid Distribution Box Side

The grid port connection of the grid distribution box side
should be analyzed and operated depending on field wiring
condition.

Quick Installation Guide _ for Parallel System

1.1

System Diagram

Only cables marked with majuscule in below system diagram will be introduced in this manual. For other cables connection, here will not be discribed.
A EPS connection between Inverter and parallel box (refer to Part 2) B Grid connection between Grid Distribution Box and parallel box(refer to Part 2) C EPS Load connection between EPS load and parallel box (refer to Part 2) D Earth connection between parallel box and external earth bar (refer to Part 2) E Earth connection between parallel box and EPS Load (refer to Part 2) F Communication connection between parallel box and Master Inverter (refer to Part 2) G Communication connection between Inverters (refer to Part 3) H Communication connection between Master Inverter and SOLAX meter (refer to Part 3)

Part 1 Preparation
1.2

Packing List

Expansion bolt 4, Gasket 4

Cold-pressed terminal (22-6) 3, (22-8) 5

Cold-pressed terminal(5-5) * 28

RJ 45 terminals 1
Communication terminal (green) 1 (choose a suitable one when installing)

Board marking paper *1

4AWG European terminals (25-18) * 5

M4 inner hexagon bolt * 1
1.3

Ground terminal (length, 250mm )

1

Natural line(Black) * 1 (
(For Australia)

Ground terminal (length, 30mm )

1 (For other areas)

Cable Preparation

– Press the terminal harness. Connectors Application Connectors

Application Connectors

Application Connectors Application

R/S/T/N EPS Connector X 6 pairs

R/S/T/N Grid Connector X 2 pairs

1.4

Mounting

– Use the attachment bag of control cardboard drill four 8 holes. – Depth: at least 80mm

– Tighten the expansion tubes.
– Pass the expansion screws though the M6 washers, then screw the expansion screws. (Torque:8.0 N·m)

8 Drill (Depth: 80 mm)

Expansion bolts, Tapping screws
Rubber hammer

nut, Gasket

Notes: Affix the empty cabinet on the wall first before proceeding any installation. It will be too dangerous to move as the box fitting with switch will over weigh cabinet handle’s bearing limit.

– Remove the safety bezel.

Torque: 2.0 N·m

GRID LOAD EPS

Part 2 Installation of Parallel BOX

2.1

Connection Overview of Parallel BOX

Hybrid inverter

Slave

1 ~ n Max n=6

Master

Hybrid inverter

Part 2.3

Part 2.7

Important Warning!
Every cable must be connected according to correct line sequence(R-R, S-S, T-T, N-N), otherwise any small misoperation may cause the system running failed.

Part 2.5 Part 2.4

Grid

Distribution Box Back-up LOADS

2.3 EPS Connection 2.4 Back-up Load Connection 2.5 GRID Connection 2.7 Communication Connection

2.4

Back-up Load Connection

2.3

EPS Connection

Part 2 Installation of Parallel BOX

2.5

GRID Connection

2.7

Communication Connection

Connection of Parallel Box side

Make Grid cables
Remove 18mm insulation from cable ends, then Insert the stripping terminal. Press the terminal head with the blank holder.

Crimp!

18 mm

Screw cables
Screw cables through the GRID port on the bottom of the BOX to corresponding Load ports (R-bar, S-bar, T-bar, N-bar, G-bar) by screwdriver.
Note: For users in most countries, you need to find a ground cable from the accessories, and short-circuit the N-bar of EPS with PE; for Australian users, you can find a Natural line(Black) in the accessories to connect the N terminal of the Grid Connect with the N-bar of EPS. ( refer to picture as below ) Torque:4.0 N·m

For Other Areas NTSRG

For Australia TSR

Connection of Parallel Box side
Make communication cables
If the user is used with X3–Hybrid/Fit G2 inverter, please connect as follows: Remove 4mm insulation from cable ends. Insert the cable into the green terminal in the accessory bag, then use a screwdriver to tighten the cable and insert it into the corresponding port. Torque:0.2±0.1 N·m

green terminal

Crimp!

EPS cable GND cable

GNDEPS

GND cable

If the user is used with X3–HybridG4 inverter, please connect as follows:

EPS cable

Use a common network cable and Remove 4mm insulation from cable ends.

Insert the cable into the RJ45 terminal in the accessory kit, then use a diagonal pliers to tighten the cable and insert it into the

corresponding port.

Multifunction terminal crimping tool (RJ45)

15.00mm

Diagonal pliers

12 3 4 5 6 7 8

White with orange stripes 2) Orange 3) White with green stripes 4) Blue 5) White with blue stripes 6) Green 7) White with brown stripes 8) Brown

N G

GRID

GGRRIIDD

Connection of Grid distribution box side
Grid port connection of grid distribution box side should be analyzed and operated depending on field wiring condition. Here will not be described into details.

2.6

Ground Connection

Step 1: Find a longer ground cable from the attachment.

Ground terminal (length, 250mm)
Step 2: Twist the screw between the ground terminal inside the cabinet and the ground terminal of the chassis, connect them with a ground cable, and tighten the screws.
– Finally, install the upper cover of the machine and tighten the screws.

Connection of Inverter side (please refer to Inverter User Manual for details )

If the user is used with X3-Hybrid/Fit G2 inverter, please connect as follows:

Prepare a connector and two communication cables.

10.0mm

conductor communication cable

GND

EPS 8pin terminal (in accessories package)

Insert the cables
Unscrew the nut of connector on the bottom of the inverter and insert two communication cables through it.

Screw the terminal Insert the positive terminal into the corresponding negative terminal block inside of the inverter. And then screw it tightly. Torque:0.4±0.1 N·m

Screw the wires

Disconnect the insulation layer of the

communication cable, and then insert one

side of the cable corresponding to the

GND and EPS port into the pin5 and pin6 holes of the 8-pin positive terminal in the accessory bag.

GND

EPS

Torque: 0.2±0.1 N·m

If the user is used with X3–Hybrid G4 inverter, please connect as follows: * Note: It is best to connect the CAN port on the left of “Master” to X3-Parallel Box, and connect the CAN port on the right to “Slave”.

GNDEPS

Master CAN Slave CAN

CAN

DRM

SHUT

CAN CAN DRM SHUT

Part 3 Installation of Parallel System

CAN-CAN connnection: Insert one side of CAT7 cable into the first inverter’s CAN port and the other side into the next inverter’s CAN port.
RS485-Meter connection: Insert one side of CAT5 cable into the RS485 port of meter, and the other side into the CAN 1 port of the first inverter or the CAN 2 port of the last inverter.

Please note the inverter connected with meter will be the Master Inverter and this Master inverter must be connected with battery.

If the user is used with X3–Hybrid G4 inverter, please connect as follows:

X3-Parallel Box

Meter

Master Inverter

Terminal Inverter

… …

A Meter(RS485)-Meter
A
CAT5 network cables

CAN1 CAN2

B

CAT7 network cables

CAN-CAN

If the user is used with X3–Hybrid/Fit G2 inverter, please connect as follows:

CAN1 CAN2

Meter

B

A

CAT7 network cables

CAT5 cable

CAN-CAN

CAN-meter

CAN CAN

Meter Port: The first RJ45 port from left side

CAN Port: The first RJ45 port from left side
Note: For specific cable operation of these cables, please refer to Inverter User Manual.

Part 4 LCD Operation

There are three work modes in parallel system, and your acknowledge of different inverter’s work modes will help you understand parallel system better, therefore please read it carefully before operating.

Free mode Master mode Slave mode

Only if no one inverter is set as a “Master”, all inverters are in free mode in the system.
When one inverter is set as a “Master”, this inverter enters master mode. Master mode can be changed to free mode.
Once one inverter is set as a “Master”, all other inverters will enter slave mode automatically. slave mode can not be changed from other modes by LCD setting.

“Master Inverter” setting in LCD display

Find the inverter connected with the SolaX meter, then enter the setting page of the inverter LCD screen, click on the parallel settings, and select “master control”; then enter the “resistance switch”and set it to ” ON”; Finally, find the last slave in the parallel system and enter the setting page of the inverter LCD screen and set the “resistance switch” to “ON”.
– If one inverter want to exit from this parallel system, please do the steps as below: step 1: Disconnect all the network cables on the CAN port. step 2: Disconnect all power cables (R/S/T/N/PE) connected to X3-Parallel Box. step 3: Enter setting page and click parallel setting, and choose “Free”.

Setting Battery Parallel Setting Reset

Parallel Setting

Status >setting

Free Master

Parallel Setting Resistance Switch
ON

Notes: Once this inverter is set as a “Master”,all other inverters will enter “slave mode” automatically.

Main display: Once inverter enters parallel system, the “today yield” will be replaced by ” Inveter Class”, and parallel relevant fault has a higher priority than other faults and will be showed firstly on main display.

Power Today Battery

5688W 20.5KWh
67%

Normal

Power Parallel Battery

5688W Master
67%

Normal

Power Parallel Battery

5688W Slave1
67%

Normal

Status display:
User can obtain all the status data from master inverter. System power and individual slave inverter power can be obtain in status display of master inverter.

Menu Status >Parallel Status History

Parallel Status