Solar MD SS4074-11 User manual

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

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].


Introduction 2
Product Description 2
Product Specifications 2
Errors or Inaccuracies 2
Copyrights 3
Safety Information 3
⚠ Warnings ⚠ Cautions 3
Specification 4
Mechanical installation 5
Installing bottom cover plate 6
Electrical installation 7
Commissioning 9
Multicolor multipurpose button 10
Button function 10
Button indication
BMS Warnings and Errors 12
CANBUS connection.
CANBUS warnings.
Troubleshooting Warnings / Errors
Maximum charging / discharging voltages for non supported
devices.
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11
18
19
20
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SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].


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
meet most residential applications. The rated voltage is 51.2V nominal (to suit 48V systems).
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
Solar MD battery inoperable.
2
Larger systems are provided by Solar MD based on specific project requirements.
serious injury that can result in death or damage to the product that can render the SS4074
SS4074-11 INSTALLATION MANUAL v1.0
The SS4074-11 battery solution is available in one standard size and can be paralleled to

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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
Product Specifications
improvements at any time.
Errors or Inaccuracies
To communicate any inaccuracies, omissions or to provide general feedback regarding this
manual, send an email to [email protected]
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
⚠ Warnings ⚠ Cautions
● 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.
3
accurate at the time of printing. Solar MD reserves the right to make any product revisions &
Failure to comply will void the warranty
SS4074-11 INSTALLATION MANUAL v1.0
All SS4074-11 specifications & descriptions contained in this document are verified to be
SS4074-11.
Read all instructions before installing and using the SS4074-11.
● Use SS4074-11 only as instructed.

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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Specification

Battery type
Lithium Iron
Phosphate
Scalability
Yes
Battery module
SS4074
Communication
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
Protection method
Cell level: uv / ov / oc
Position: x / y / x
Acceleration: x / y / z
Temperature: ot / ut
Nominal voltage
51.2V
Protection phy
Mechanical relay NO
Rated Current (Ampere)
100A
C Rating
0.69C
Number of battery modules
1 module
Com (CANBUS ) isolation
Yes 1.5kV
Weight
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)
620/605
/200
Cell balancing
Passive balancing
Net Weight of SS4074
72 kg
Counters
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
-5℃ ~+50℃
Safety standards
compliance
IEC 62619/UN 38.3/UL1642
Transport
UN3480 & UN38.3
Cell Certificate
TUV / CE / RCM / UL1642
4
76kg
SS4074-11 INSTALLATION MANUAL v1.0
Solar MD 7.4kWh SS4074-11 specification

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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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.
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SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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Installing bottom cover plate
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
Figure 3 Bottom cover installation single or multiple batteries in line
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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Electrical installation
Step 1. Before connecting anything be sure that the battery ON/OFF switch is at OFF
7
Figure 4 BMS board component locations
SS4074-11 INSTALLATION MANUAL v1.0
position. (fig4 pos 3)

Unit 23, Alternator Park
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Cape Town, South Africa
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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.
Step 2. Connect the negative cable to the battery negative busbar and positive cable to the
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Figure 5 connection terminals
SS4074-11 INSTALLATION MANUAL v1.0
battery positive busbar as shown in figure 5.

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
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T: [phone].
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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 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.
9
SS4074-11 INSTALLATION MANUAL v1.0
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).

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
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Multicolor multipurpose button
Button functions
The Multipurpose Button can be used to directly execute 6 predefined functions and a shutdown instruction. In
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.
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The new Solar MD Multipurpose button has an extended functionality in combination with the BMS-EX.
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
Figure 6 : Multicolor / Multipurpose button.
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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The Multipurpose button advanced indication functionality, allows the user to choose between 5 different
Battery Settings.
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.
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.
When this state has been selected, the button shows illumination in a color based on the user choice and
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.
states. Mixed combinations are also allowed when a combination of multiple batteries with BMS-EX are
flashing code based on the electrical current direction (charge / discharge). The flashing code for charge goes
Button indication
Illumination off
Color based on capacity with current direction based on shading.
Fixed color with current direction based in shading
**For future development
**For future development
**Access to all features in future development
**For future development
11
used. The User can change the prefered stage by logging into their mypower24 Energy Portal and go to the
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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BMS Warnings and Errors
Method of displaying general warnings and errors:
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.
Figure 7 : Display general warnings and errors, Main status LEDs and Indication LEDs.
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SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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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.
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SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
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Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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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
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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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]
15
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].

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]
16
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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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]
17
SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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CANBUS connection.
Bms EX used CAN 2.0B @ 500000 kb. Connecting other device operating at different speed rate is not
The output of the Bms EX CAN transceiver is galvanically isolated.
RJ45 connections can be used for daisy chaining BMS EX together using a straight Ethernet cable.
Figure 8: BMS-E connection to the CANBUS.
allowed. For connection please use twisted pair wires in a shielded cable to minimize RF emissions.
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SS4074-11 INSTALLATION MANUAL v1.0

Unit 23, Alternator Park
Montague Gardens 7441
Cape Town, South Africa
Solar MD (PTY) ltd.
E: [email protected]
T: [phone].
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CANBUS warnings.
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]
Figure 9 CANBUS Termination resistor and Warning LED location
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SS4074-11 INSTALLATION MANUAL v1.0