solarMD SS4074-11 Advanced Lithium-Ion Battery Instruction Manual

Instruction Manual for solarMD models including: SS4074-11, Advanced Lithium-Ion Battery, Lithium-Ion Battery, Advanced Battery, SS4074-11, Battery

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SS4074-11 INSTALLATION MANUAL v1.0 en

Solar MD (PTY) ltd. Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa
INSTALLATION MANUAL
SS4074-11 Advanced Lithium-Ion battery

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Introduction

Product Description

Product Specifications

Errors or Inaccuracies

Copyrights

Safety Information

Warnings Cautions

Specification

Mechanical installation

Installing bottom cover plate

Electrical installation

Commissioning

Multicolor multipurpose button

Button function

Button indication

BMS Warnings and Errors

CANBUS connection.

CANBUS warnings.

Troubleshooting Warnings / Errors

Maximum charging / discharging voltages for non supported

devices.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Introduction
This manual is intended to provide assistance to an installer for the installation and commissioning of the range of Solar MD Lithium Ion phosphate (LiFePO4) energy storage solutions.

Product Description
The SS4074-11 battery solution is available in one standard size and can be paralleled to meet most residential applications. The rated voltage is 51.2V nominal (to suit 48V systems). Larger systems are provided by Solar MD based on specific project requirements.
WARNING: Read the entire document before installing or using the Solar MD battery. Failure to comply with the instructions or warnings in this document could result in electrical shock or serious injury that can result in death or damage to the product that can render the SS4074 Solar MD battery inoperable.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Product Specifications
All SS4074-11 specifications & descriptions contained in this document are verified to be accurate at the time of printing. Solar MD reserves the right to make any product revisions & improvements at any time.

Errors or Inaccuracies
To communicate any inaccuracies, omissions or to provide general feedback regarding this manual, send an email to info@solarmd.co.za
Copyrights
All information in this document is subject to the copyright of Solar MD (Pty) Ltd. Additional information is available upon request.

Safety Information
This manual contains important instructions and warnings that must be followed when using SS4074-11. Read all instructions before installing and using the SS4074-11.

Warnings

Cautions

Use SS4074-11 only as instructed. For communication and other information please read the BMS manual. Do not attempt to disassemble, repair, modify, or tamper with this battery unit. Do not insert foreign objects into any part of battery unit. Avoid exposure to any moisture. Do not expose to extreme temperatures. Do not drill any holes into the box. Use only an approved Solar MD installer to install this product.

Failure to comply will void the warranty

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Specification
Battery type Battery module

Solar MD 7.4kWh SS4074-11 specification

Lithium Iron Phosphate
SS4074

Scalability Communication

Yes CANBUS 500kbps / CAN 2.0B

Rated battery capacity

7373 Wh

Can BUS termination

Single 120 Ohm

Output power

Max 5 kW

Canbus id range:

256 - 499

Usable battery energy @ 0.3

7.37 kWh

Nominal voltage

51.2V

Protection method Protection phy

Cell level: uv / ov / oc Position: x / y / x Acceleration: x / y / z Temperature: ot / ut
Mechanical relay NO

Rated Current (Ampere)

100A

C Rating

0.69C

Number of battery modules 1 module

Com (CANBUS ) isolation Yes 1.5kV

Weight

76kg

Transportation protection Yes

Operating voltage

44.8V - 55.6Vdc Indicator

Led, programmable

Communication

CANBUS

Addition IO

3 GPO

Dimensions of SS4074: h/w/d (mm)
Net Weight of SS4074

620/605 /200
72 kg

Cell balancing Counters

Passive balancing Cycle counters and SoH

Battery cycle life [+25 ]

> 4000

AUX power output

5V 1A max

Charging efficiency

99%

Storage duration

6 months@+25

Operating temperature Transport

-5 ~+50

Safety standards compliance

UN3480 & UN38.3 Cell Certificate

IEC 62619/UN 38.3/UL1642 TUV / CE / RCM / UL1642

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Mechanical installation

Please use the correct mounting screws for the correct wall surface. Screw heads should not be larger than 16mm in diameter. The Battery is only to be installed in an upright position. The maximum allowed tilt is 30 degrees.
5

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Installing bottom cover plate

Figure 3 Bottom cover installation single or multiple batteries in line
The Battery comes with two covers for single out or double out on both sides of the battery. Use the 1 or 2 way out cover plate and fix it with the two M5x6 bolts provided in the box.
6

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Electrical installation
Step 1. Before connecting anything be sure that the battery ON/OFF switch is at OFF position. (fig4 pos 3)

Figure 4 BMS board component locations
7

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Connecting Inverters/chargers/UPS to the battery unit while is ON can cause big sparks due to capacitors inside the connected device. This can be harmful for people.
Connecting main battery terminal must be with correct size cable.
based on the rated current of the battery and the charger/inverter in case it is lower.

Figure 5 connection terminals
Step 2. Connect the negative cable to the battery negative busbar and positive cable to the battery positive busbar as shown in figure 5.
8

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Switching the Battery ON
Step 1. Make sure all DC cables are tightened according specifications.
Step 2. If the battery operates in parallel with other Energy sources, make sure that the difference between battery voltage and DC bus is not more than 2.5V. If greater than 2.5V please Charge or Discharge the other source accordingly until voltage difference is in safe ranges under 2.5V.
Caution! A hot connection with difference in voltage can cause very high
equalization current which can burn the fuses of the battery!
Caution! Measure the voltage of the battery before connecting the dc
Cables.
Step 3. Turn the BMS board ON/OFF switch to the ON position (figure 4 pos 3).
Step 4. Connect Multipurpose button if not connected to the BMS board connector (figure 4 pos 5).
Step 5. Hold multi purpose button until the light comes on.
Warning! If the battery does not switch the main protection Contact ON in 7
sec, please check BMS board indication LED for faults. See section BMS Error and Warnings.

Unit 23, Alternator Park Montague Gardens 7441
Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Multicolor multipurpose button

Figure 6 : Multicolor / Multipurpose button.
Button functions
The new Solar MD Multipurpose button has an extended functionality in combination with the BMS-EX. The Multipurpose Button can be used to directly execute 6 predefined functions and a shutdown instruction. In combination with the 6 Indication LEDs on BMS-EX, the user can choose between each function by holding the button until the LED count matches the number of the function. By releasing the button while moving through the functions, the LEDs will start blinking and wait for the user to press the button again within 3 seconds.
The predefined functions are: 1. Reserved 2. Change indication LED function between: Show Capacity, Show Current, and Off 3. Reserved 4. Wake up if Sleep mode is active 5. Activate Override Off state for 60sec 6. Activate Override On state for 60sec
If the button is held continuously after function 6, shutdown mode is activated and the battery will send a signal to switch off in 4sec.
Further holding the button causes the BMS to delay complete shutdown for a maximum of 3 minutes. This operation is used when the technician wants to continue read or write parameters after shutdown.
10

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Button indication
**Access to all features in future development
The Multipurpose button advanced indication functionality, allows the user to choose between 5 different states. Mixed combinations are also allowed when a combination of multiple batteries with BMS-EX are
used. The User can change the prefered stage by logging into their mypower24 Energy Portal and go to the Battery Settings.

Illumination off
**For future development When this state has been selected, the button serves as an on/off switch without illumination (fixed colour).

Color based on capacity
When this state has been selected, the button shows static illumination in a color based on the state of charge. From RED at 0% SoC (State of Charge) to GREEN at 100% state of charge.
Color based on capacity with current direction based on shading.
**For future development When this state has been selected, the button shows flashing illumination in a color based on the state of charge and flashing code based on the electrical current direction (charge / discharge). From RED at 0% SoC (State of Charge) to GREEN at 100% state of charge. The flashing code for charge goes through illumination interruption for 1 interval and slow illumination into the color based on the SoC for 5 intervals. The flashing code for discharge represents the opposite from charge - study color for 1 interval and slow loss of color following illumination interruption. Solar MD users refer for both as charging / discharging waves.
Fixed color with current direction based in shading
**For future development When this state has been selected, the button shows illumination in a color based on the user choice and flashing code based on the electrical current direction (charge / discharge). The flashing code for charge goes through illumination interruption for 1 interval and slow illumination for 5 intervals. The flashing code for discharge represents the opposite from charge - study color for 1 interval and slow loss of color following illumination interruption. Solar MD users refer for both as charging / discharging waves.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

BMS Warnings and Errors
Method of displaying general warnings and errors:

Figure 7 : Display general warnings and errors, Main status LEDs and Indication LEDs.
The Status LEDs determine what the indication LEDs will show. 1. If the Status LED is Green the indication LEDs will show: a) Battery capacity b) Current flow and direction c) Off The functionality of the indication LEDs are configurable, see more on this: multifunction push button. 2. If the Warning LED is Orange a) The indication LEDs will show the warning number in binary, which corresponds to that tabulated below in the warning register.
3. If the Error LED is Red a) The indication LEDs will show the error number in binary, which corresponds to that tabulated below in the error register.
12

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Warning codes.

Figure 6. Indication LEDs: (1,2,3) orange left and (4,5,6) green right. In combination with Orange Stat LED (WARNING)
+ - Battery cell voltage is too low. [1]
+ - Battery cell voltage is too high. [2]
+ - Battery charging current is higher than the maximum allowed
charging current . [3]
+ - Battery discharging current is higher than the maximum allowed
electrical discharging current. [4]
+ - Override ON active, protection is forced to work at extreme levels for
preset period. [5]
+ - Override OFF active, protection is forced to switched off the main
protection relay for preset period. [6]
+ - Pending awake LOW state indicate that battery is forced to switched
On for predefined amount of time normally 1min waiting for charger to start charging.[29]
+ - Pending awake HIGH state indicate that battery is forced to
switched Off and waiting for all voltages to drop in safe margins.[30]
Addition configuration are used for internal diagnostic.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Error codes.

Figure 7. Indication LEDs: (1,2,3) orange left and (4,5,6) green right. In combination with Red Stat LED (ERROR)
+ - Battery position X axis is out of range. [5] + - Battery position Y axis is out of range. [6] + - Battery position Z axis is out of range. [7] + - Battery Protection in critical stage, pending shutdown in 3sec. [12] + - Battery Protection in critical stage, Override mode reached the
maximum permitted values, pending shutdown in 3sec. [13]
+ - Battery Protection in critical stage, Normal mode reached the
maximum permitted values, pending shutdown in 3sec. [14]
+ - Battery Protection in critical stage, pending shutdown in 3sec. [15] + - Remote Shutdown instruction received, pending shutdown in 3sec. [16] + - User Shutdown instruction received, pending shutdown in 3sec. [17] + - Discharging current is too high. [18] + - `` Charging current is too high. [19] + - Incorrect cell count detected. [21] + - Cell voltage too low. [22]
14

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Error codes continued.

Figure 8 Indication LEDs: (1,2,3) orange left and (4,5,6) green right. In combination with Red Stat LED (ERROR)
+ - Cell voltage too high. [23] + - Internal error. Additional information on request.[24] + - Internal error. Additional information on request.[25] + - Internal error. Additional information on request.[26] + - Internal error. Additional information on request.[27] + - Internal error. Additional information on request.[28] + - Internal error. Additional information on request.[29] + - Internal error. Additional information on request.[30] + - Internal error. Additional information on request.[31]

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Error codes continued.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Error codes continued.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

CANBUS connection.
Bms EX used CAN 2.0B @ 500000 kb. Connecting other device operating at different speed rate is not allowed. For connection please use twisted pair wires in a shielded cable to minimize RF emissions. RJ45 connections can be used for daisy chaining BMS EX together using a straight Ethernet cable. The output of the Bms EX CAN transceiver is galvanically isolated.

Figure 8: BMS-E connection to the CANBUS.

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

CANBUS warnings.

Figure 9 CANBUS Termination resistor and Warning LED location
The Orange LED (WARN) is used to display warning for canbus only. Reading this warning is possible with pulse counting.
- CANBUS line open or no termination resistor set. [1] ......
- CAN BUS line in initialization stage. Canbus init occur when the line was opened and then established. Minimum period for initialization is 30sec. In this period all nodes are scanned in the network and scanned for ID and serial number collisions. [2]
- Duplicate CAN ID detected with no "auto ID" set. [3]
- Duplicate Serial number detected. [4]
- CANBUS Internal fault. [5]
19

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Troubleshooting Warnings / Errors

Code

Cause

Solution

Warnings ( Figure 6)

1-2

1. Inverter / rectifier settings may not be correct.

2. Battery cells may be disbalanced

1. Check the battery settings 2. Contact Solar MD support

3-4

System design is not correct.

Add additional battery, decrease charging / discharging current from your inverter / rectifier / load

5-6

Manual override

Manual override has been activated - please check with your installer

29-30

The BMS is ready to switch on after deep discharge / charge

Connect charger / load to the Battery

Errors (Figure 7 & 8)

5,6,7

The battery is not installed in upright position

Install the battery in the right position

15,16,17 The BMS has been shut down manually or remotely

Switch on the BMS

18,19

The absolute maximum charge/discharge current has been achieved

The BMS will restart automatically, please contact support team or approved installer

The BMS is set for different number cells in series as the actually

Contact your installer or Solar MD support team

installed

cvt22

Battery cell voltage way too low.

Fill in the failure report and send to info@solarmd.co.za The unit needs to return to the factory for testing

Battery cell voltage way too high

The BMS will restart automatically after pending awake condition

24,25,26, 27,28,30, 31

BMS Internal failure

Fill in the failure report and send to info@solarmd.co.za The BMS will be dispatched to you for replacement

Battery factory failure

Fill in the failure report and send to info@solarmd.co.za The unit needs to return to the factory for testing

CANBUS Warning (Figure 10)

1. Canbus line open.

2. Single CANBUS resistor not terminated.

1.Check if the minimum of two nodes are connected on the line with the same transmission speed. 2.Check if single resistor is terminated via the jumper. Located top left of can LEDS(Fig 10).

Unit 23, Alternator Park Montague Gardens 7441 Cape Town, South Africa

Solar MD (PTY) ltd. E: info@solarmd.co.za
T: (021) 555 2181.
SS4074-11 INSTALLATION MANUAL v1.0

Maximum charging / discharging voltages for non supported devices.
- Bulk charge (stop charging) 54.6V - Float charge (if applicable) 53.8V - Low battery discharge: 48V
Check that the Equalisation function are disalled, then verify if there is a voltage difference on the inverter display and the battery terminals @0.3C discharge / charge current. If so adjust the values above.

Please check if your inverter charger has been approved by Solar MD and it is CAN compatible.

For the latest Solar MD installation documents go to: www.solarmd.com

To secure the full 10-year product warranty for the end user, be sure to register your battery online login.mypower24.co.za.

References

2.2.15 (4.2.4)