ELERIX EX-S5 Energy Storage User Manual

: June 3, 2024
: ELERIX

Table of Contents

Product description
Possibilities of use
Description of operation
Technical specification
Description of inputs, outputs, controls and indications
Setup, commissioning, status indication
Installation, operation
Examples of solutions with Victron components:
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Technical manual
ELERIX Storage
EX-S5

Product description

The energy storage is based on LiFePO4 batteries with a built-in Battery Management System (BMS) and short circuits protection. The power output of the storage is 48V 100A (5kW), communication output CAN and RS485 serve for further management, communication, and monitoring with other devices. The outputs are on both sides of the box. Robust design.
The individual 5kW modules can be scaled with system power and communication connections up to 12 units (master + 11 slaves). This increases the storage capacity up to 60kWh, but the resulting output power and voltage remain the same – 5kW /48V at the level of master output. The parallel interconnection of masters is not supported by the software.
The product is primarily intended to be used as stationary storage, i.e. for floor-mounted storage in a building.
The product package includes:

1 pc battery box
1 pc set for anchoring to the wall (brackets, dowels, screws)
1 pc power cable for connecting to the downstream installation (one end system connector for connection to the box, the other end to 8mm lugs, the length of the cable is 2m)
1 pc connecting power cable between boxes (system connectors on both sides, length 0.5m)
1 pc link communication cable between boxes (LinkPort, length 0.5m)
1 pc grounding wire (length 0.5m, M5 lugs)

For communication with the Victron system, it is necessary to purchase an optional accessory – Victron GX CAN cable.

Possibilities of use

Photovoltaic power plants in parallel operation with the distribution grid (family houses, small industrial installations…)
Island (off-grid) photovoltaic installations (cottages, mobile houses…)
Backup power sources (external batteries for UPS modules…)
The condition of use is integration with chargers (MPPT, LAN network…) and appliances (most often inverters) that support the mode for LiFePO4 batteries in the 48V voltage level. Typical combinations are e.g. with Victron Energy products.

Description of operation

The battery is capable of powering a load and/or being charged via either power output (the outputs are connected in parallel internally). Using an integrated BMS, these outputs are regulated by a power semiconductor element as follows:

If the battery is fully charged, the electrical path for further charging is closed, but discharging is allowed.
Charging is enabled as soon as the battery is discharged (change of current flow in the power output).
If the battery is completely discharged, the path to further discharge is closed, but charging is enabled.
Discharging is enabled as soon as the battery is charged (change in current flow in the power output).
The charging status is indicated on the LED indicator. The outputs are protected against a short circuit by a 200A solid-state fuse.
Via the CAN communication port, the battery can be connected to the VE Cerbo communication module and the following values can be read out in the VRM portal:
Power drawn or supplied (the resulting difference between charging and discharging power)
Current drawn or supplied (resulting difference in current flow)
Total battery voltage
Battery SoC
Internal battery temperature

Technical specification

Parameter	Value	Note
Capacity	100Ah	When operating at 25°C
Nominal voltage	DC 51.2V	16 LiFePO4 cells in series (system voltage DC 48V)
Min. operating voltage	43.2V	When this value is reached, the battery will

prevent further discharge. Resume discharging by changing the mode to charging.
Max. operating voltage| 57.6V| When this value is reached, the battery will prevent charging. Resume charging by changing the mode to discharge.
Recommended operating voltage| 48 – 57V| Approximately 90% capacity is used at optimum operating temperature.
Max. operating charging current| 100A| Charging will shut down after the 30s if 105A is exceeded or after 1s if 125A is exceeded. Return to the operating state after the 60s.
Max. operating discharging current| 100A| Discharging is shut down after 300s when 110A is exceeded or after the 30s when 125A is exceeded or after 1s when 155A is exceeded. Return to the operating state after the 60s.
Recommended discharging/ charging current| 80/50A| Increased lifetime (cycles)
Discharge operating temperature| -15°C to 55°C| Optimal 5°C to 40°C
Charging operating temperature| 0°C to 55°C| Optimal 5°C to 40°C
Lifetime (cycles)| > 6000| Operating at 25°C and 90% DoD
Max. time without charging| 3 months| Service recharging to compensate for BMS self-consumption and battery self-discharge.
Dimensions w/d/h| 342/207/600 mm|
IP protection| IP 21|
Weight| 49 kg|
Energy density| 104Wh/kg|
Max number of modules in parallel communication| 12| 1x master with power and communication output and 11x slaves
Communication| RS 485/CAN|

Description of inputs, outputs, controls and indications

Setup, commissioning, status indication

Set the appropriate configuration for the number of boxes used on the 12-pin ADJUST SWITCH – see Table 1.
Press the START/STOP POWER SWITCH button for 1s (all LEDs will light up). Then press the START button for approx. 3s. After a delay of approx. 5s, the operating status LEDs are displayed – see Table 2. In this mode, power is available at the power output. A possible error condition is indicated according to Table 3. If the power output of the box is connected to DC 48V in a battery off state (e.g. to an inverter in hybrid operation), the BMS of the box indicates this and switches on the battery and connects the power output automatically. However, when connecting multiple parallel boxes, in this case, a manual start of the slave modules is required. To manually shut down the boxes, press the START/STOP POWER SWITCH button.
In the case of two or more parallel modules, connect the data communication between the modules using the accessory cable between LinkPort0 of the first (master) module to LinkPort1 of the next (slave) module and then between the slave modules in the same way. Note: The LinkPort1 connector on the master module remains unconnected. For communication with Victron devices via the VE GX Cerbo communication unit, a communication cable can be purchased here. Please refer to the product manuals of the respective Victron elements to revive the communication. See table 4 for the arrangement of the communication connectors.

Number of batteries| Master| Slave 1| Slave 2| Slave 3| Slave 4| Slave 5| Slave 6| Slave 7| Slave 8| Slave 9| Slave 10| Slave 11
---|---|---|---|---|---|---|---|---|---|---|---|---
1| 0001
0000| | | | | | | | | | |
2| 0010
0000| 0000
0001| | | | | | | | | |
3| 0011
0000| 0000
0001| 0000
0010| | | | | | | | |
4| 0100
0000| 0000
0001| 0000
0010| 0000
0011| | | | | | | |
5| 0101
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| | | | | | |
6| 0110
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| | | | | |
7| 0111
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| | | | |
8| 1000
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| | | |
9| 1001
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| | |
10| 1010
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| 0000
1001| |
11| 1011
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| 0000
1001| 0000
1010|
12| 1100
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| 0000
1001| 0000
1010| 0000
1011

Table 1

SOC LED Indicator

Status		Charge	Discharge	Stanf by
=100%

| On| On| Off
| On| On| Off
| On| On| Off
| On| On| Off
| On| On| Off

100%>SOC>=80%| | Flash| On| Off
| On| On| Off
| On| On| Off
| On| On| Off
| On| On| Off
80%>SOC>=60%| | Off| Off| Off
| Flash| On| Off
| On| On| Off
| On| On| Off
| On| On| Off
60%>SOC>=40%| | Off| Off| Off
| Off| Off| Off
| Flash| On| Off
| On| On| Off
| On| On| Off
40%>SOC>=20%| | Off| Off| Off
| Off| Off| Off
| Off| Off| Off
| Flash| On| Off
| On| On| Off
20%>SOC>=0| | Off| Off| Off
| Off| Off| Off
| Off| Off| Off
| Off| Off| Off
| Flash| On| Off

Table 2

Fault List| LED1| LED2| LED3| LED4| LED5| Alarm| Run
---|---|---|---|---|---|---|---
Adc/afe Fault| | | | | | |
Hight Voltage Fault| | | | | | |
Low Voltage Fault| | | | | | |
Hight Temperature| | | | | | |
Low Temperature| | | | | | |
Over current| | | | | | |
Over Voltage/ Temperature| | | | | | |
Leakage Fault| | | | | | |
Inverter Comm Fault| | | | | | |
Parallel Comm Fault| | | | | | |
Precharge Fault| | | | | | |
Discharge/ Recharge/ Prohibit Charging low voltage| | | | | | |

Table 3

– Link Port0

Pin	Function definitions	Function declaration
1	B	RS485-B
2	A	RS485-A
3	GND	GND
4	NC	NC
5	NC	NC
6	GND	GND
7	A	RS485-A
8	B	RS485-B

– Link Port1

Pin	Function definitions	Function declaration
1	B	RS485-B
2	A	RS485-A
3	GND	GND
4	NC	NC
5	NC	NC
6	GND	GND
7	A	RS485-A
8	B	RS485-B

– RS485

Pin	Function definitions	Function declaration
1	B	RS485-B
2	A	RS485-A
3	GND	GND
4	NC	NC
5	NC	NC
6	GND	GND
7	A	RS485-A
8	B	RS485-B

– CAN

Pin	Function definitions	Function declaration
1	NC	NC
2	GND	GND
3	NC	NC
4	CANH	CANH
5	CANL	CANL
6	NC	NC
7	NC	NC
8	NC	NC

Table 4

Installation, operation

Only a suitably qualified person can install and connect the battery to the system.
Install the battery by the regulations and standards for the country and environment and by its IP21 protection.
Stabilize the battery box using the mounting bracket and observe the spacing as shown in Figure 1.
Connect the power and data cables and commission the battery according to the instructions above.
Arrange the operating temperature.
When storing or shutting down the module for longer period, secure that the battery is charged every 3 months.