DISCOVER 48-48-5120-H Energy Storage System Instruction Manual
- June 1, 2024
- Discover
Table of Contents
- INTRODUCTION
- AUDIENCE, WARNINGS, MESSAGES, GENERAL SAFETY, PERSONAL PROTECTIVE
- DOCUMENTATION
- OVERVIEW
- LYNK II CAN HARDWARE TERMINATION AND CAN OUT PIN CONFIGURATION
- INSTALLING AND CONNECTING LYNK II TO THE SUNSYNK NETWORK
- ENABLING LYNK II TO COMMUNICATE WITH SUNSYNK DEVICES
- Appendix
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
LYNK II
(950-0025)
SUNSYNK MANUAL
READ AND SAVE THESE INSTRUCTIONS
805-0076 REV A
INTRODUCTION
This Application Note provides information about integrating LYNK and AEbus network-enabled Discover Lithium Batteries using the LYNK II Communication Gateway with SUNSYNK power conversion devices.
AUDIENCE, WARNINGS, MESSAGES, GENERAL SAFETY, PERSONAL PROTECTIVE
EQUIPMENT
1 .1 Audience
Configuration, installations, service, and operating tasks should only be
performed by qualified personnel in consultation with local authorities having
jurisdiction and authorized dealers. Qualified personnel should have training,
knowledge, and experience in the:
- Installation of electrical equipment
- Application of electrical codes, safety, and installation standards
- Analysis and reduction of hazards involved in performing electrical work
- Installation and configuration of batteries
- Installation and configuration of systems activated by relays
1 .2 Warning, Caution, Notice, and Note Messages
Messages in this manual are formatted according to this structure.
| Additional information concerning important procedures and features of the
product. Read all the instructions before installation, operation, and
maintenance.
---|---
| Important information regarding hazardous conditions.
WARNING
Important information regarding hazardous conditions that may result in
personal injury or death.
CAUTION
Important information regarding hazardous conditions that may result in
personal injury.
NOTICE
Important information regarding conditions that may damage the equipment but
not result in personal injury.
NOTE
Ad hoc information concerning important procedures and features unrelated to
personal injury or equipment damage.
1 .3 General Warnings
WARNING
ELECTRIC SHOCK AND FIRE HAZARD
- This equipment must only be installed as specified.
- Do not disassemble or modify the battery.
- If the battery case has been damaged, do not touch exposed contents.
- There are no user-serviceable parts inside.
Failure to follow these instructions may result in death or serious injury.
WARNING
ELECTRIC SHOCK AND FIRE HAZARD
Do not lay tools or other metal parts on the battery or across the terminals.
Failure to follow these instructions may result in death or serious injury.
CAUTION
ELECTRIC SHOCK
- Do not touch the energized surfaces of any electrical component in the battery system.
- Before servicing the battery, follow all procedures to fully de-energize the battery system.
- Follow the “Safe Handling Procedures” below when working with the battery.
Failure to follow these instructions may result in injury.
1 .4 Safe Handling Procedures
Before using the battery and any power electronics, read all instructions and
cautionary markings on all components and appropriate sections of their
manuals.
- Use personal protective equipment when working with batteries.
- Do not dispose of the battery in a fire.
- Promptly dispose of or recycle used batteries following local regulations.
- Do not disassemble, open, crush, bend, deform, puncture, or shred.
- Do not modify, re-manufacture, or attempt to insert foreign objects into the battery, immerse or expose the battery to water or other liquids, fire, explosion, or other hazards. If the user suspects damage to the battery module due to water, heat, or other reason, take it to a service center for inspection.
- Only use the battery for the system for which it is specified.
- Do not lift or carry the battery while in operation.
- When lifting a heavy battery, follow the appropriate standards.
- Only lift, move, or mount following local regulations.
- Take care when handling battery terminals and cabling.
- Only use the battery with a charging system that meets specifications. Using a battery or charger that does not meet specifications may present a risk of fire, explosion, leakage, or other hazards.
- Do not short-circuit a battery or allow metallic conductive objects to contact battery terminals.
- Replace the battery only with another battery that has been qualified for the system. Using an unqualified battery may present a risk of fire, explosion, leakage, or other hazards.
- Do not drop the device or battery. If the device or battery is dropped, especially on a hard surface, and the user suspects damage, take it to a service center for inspection.
1 .5 Personal Protective Equipment
When handling or working near a battery:
- Use Personal Protective Equipment, including clothing, glasses, insulated gloves, and boots.
- Do not wear rings, watches, bracelets, or necklaces.
DOCUMENTATION
This Application Note provides information about integrating LYNK and AEbus
network-enabled Discover Lithium Batteries using the LYNK II Communication
Gateway with SUNSYNK power conversion devices in a managed (closed-loop)
configuration.
Before installation and configuration, consult the relevant product
documentation, including Manuals, Application Notes, Installation and
Configuration Guides.
SUNSYNK Documentation
- SUNSYNK SINGLE-PHASE HYBRID INVERTER USER MANUAL
- SUNSYNK SINGLE-PHASE HYBRID INVERTER INSTALLER MANUAL
- SUNSYNK HYBRID PARITY (SUPER) INVERTER INSTALLER MANUAL
- SUNSYNK THREE-PHASE HYBRID INVERTER INSTALLER MANUAL
- SUNSYNK MAX USER MANUAL
Visit https://www.SUNSYNK.org/ for the most recent version of published documents.
Discover Energy Systems Documentation
- AES 42-48-6650 LiFePO4 Installation and Operation Manual (805-0065)
- AES LiFePO4 datasheet (808-0004)
- AES RACKMOUNT Installation and Operation Manual (805-0043)
- AES RACKMOUNT datasheet (808-0039)
- LYNK II Installation and Operation Manual (805-0033)
Visit https://www.discoverlithium.com for the most recent version of published documents.
OVERVIEW
This manual provides general settings and is not a comprehensive guide to the
programming and configuration of a specific installation. An installation may
have unique conditions or use cases that require modification or adaptations
of values. Installers must be capable of reviewing and adapting to the
specifics of an installation and its specific use case and optimizing settings
where needed.
The key steps required to install and configure the LYNK II Communication
Gateway with compatible Discover Lithium batteries and power conversion
equipment are as follows:
- Review and confirm equipment compatibility and correct sizing.
- Configure the LYNK II CAN out pins to match the CAN in pins of the power conversion equipment.
- Mount the LYNK II, connect the Discover battery communication network to either the LYNK Port or AEbus Port, and then connect the CAN Out Port to the power conversion equipment’s communication network.
- Terminate all networks correctly.
- Set the LYNK II using LYNK ACCESS software to the correct protocol to enable managed (closed-loop) communication between the Discover batteries and the power conversion equipment.
- Set up the managed (closed-loop) configuration parameters on the power conversion equipment.
- Set up user preferences and enable the use case using the power conversion control system.
3 .1 System Overview
The LYNK II Communication Gateway unlocks the full potential of a Discover
Lithium battery by enabling the internal Battery Management System (BMS) to
provide real-time data in a managed (closed-loop) configuration to other
devices.
Managed (closed-loop) communication allows inverter-chargers and solar charge
controller systems to optimize their control over the charging process in
solar applications. LYNK II also enables the remote monitoring of Discover
Lithium battery SOC and data logging of multiple sites using the data
monitoring services offered by off-grid inverter systems.
Discover Lithium batteries must be set up to work with power conversion and
monitoring devices in either a self-managed (open-loop) or managed (closed-
loop) configuration.
Discover Lithium battery charge and discharge settings in a self-managed
(openloop) configuration are set up manually through the controller for the
power conversion device at installation time. Refer to A.1 Self-Managed (Open-
Loop) Configuration.
In a managed (closed-loop) configuration, the BMS of the Discover Lithium
battery sends the battery status over a network data connection with the power
conversion device. Power conversion devices use the Discover Lithium battery
BMS data to fine tune the output of their charger and deliver other
functional controls based on battery voltage, temperature, and percent State-
of-Charge.
3 .2 Compatibility
Discover Lithium Batteries
A Discover battery must have a compatible network port, such as a LYNK Port or
AEbus Port, for communicating with a LYNK II device.
- AES LiFePO4: 42-48-6650
- AES RACKMOUNT: 48-48-5120, 48-48-5120-H
SUNSYNK Inverters
The LYNK II Communication Gateway is compatible with the following SUNSYNK
devices:
Single Phase
- SUNSYNK-3K-SG04LP1
- SUNSYNK-3.6K-SG04LP1
- SUNSYNK-5K-SG04LP1
- SUNSYNK-8K-SG05LP1
- SUNSYNK-12K-SG01LP1
- SUNSYNK-14K-SG01LP1
- SUNSYNK-16K-SG01LP1
- SUNSYNK MAX
Three Phase
- SUNSYNK-8K-SG04LP3
- SUNSYNK-10K-SG04LP3
- SUNSYNK-12K-SG04LP3
3 .3 Minimum Battery System Capacity
The Discover Lithium Battery and SUNSYNK device automatically manage the
battery charge and discharge rates. Using large solar arrays with battery
banks that are too small can exceed the operating limits of the battery to
charge and possibly lead to the BMS triggering over-current protection.
Battery capacity must accept the maximum charge current of the system, or
charging must be curtailed below the operating limit of the installed
batteries. Derive this value by adding together the charge capacities of all
inverter-chargers and solar charge controllers in the system.
Additionally, battery peak capacity must support the surge requirements
demanded by the load attached to the inverter-charger. Match all inverter-
charger peak power values with the sum of all battery peak current values.
Inverter Peak = (Inverter Surge Value) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
Single-Phas e Models| I nv e rt e r
P ea k ( 1 0 seconds)| Max Continuous Cha r
g e| Max Continuous Dis c ha r g e| AE
S LiFePO 4
42-48-6650
Minimu m per inverte r (5)| AES RACKMOUNT
48-48-5120/ 48-48-5120-H Minimu m per i nv e
rt e r (6)
---|---|---|---|---|---
SUNSYNK-3K-SG04LP1| 128 A (1)| 70 ADC| 70 ADC| 1| 1
SUNSYNK-3.6K-SG04LP1| 154 A (1)| 90 ADC| 90 ADC| 1| 1
SUNSYNK-5K-SG04LP1| 213 A (1)| 120 ADC| 120 ADC| 1| 2
SUNSYNK-8K-SG05LP1| 342 A (2)| 190 ADC| 190 ADC| 2| 2
SUNSYNK-12K-SG01LP1| 518 A (3)| 220 ADC| 220 ADC| 2| 3
SUNSYNK-14K-SG01LP1| 604 A (3)| 250 ADC| 250 ADC| 2| 3
SUNSYNK-16K-SG01LP1| 691 A (3)| 290 ADC| 290 ADC| 3| 4
SUNSYNK MAX| 687 A (4)| 300 ADC| 300 ADC| 3| 4
(1) Calculated based on the surge power and efficiency CEC as published in
SUNSYNK Hybrid Parity (Super) Inverter Datasheet SUNSYNK-3K-SG04LP1 /
SUNSYNK-3.6K-SG04LP1 / SUNSYNK-5K-SG04LP1 (version 14, 05/09/22).
(2) Calculated based on the surge power and efficiency CEC as published in
SUNSYNK Hybrid Parity (Super) Inverter Installer Manual SUNSYNK-8K-SG05LP1
(version 16, 10/04/22).
(3) Calculated based on the surge power and efficiency CEC as published in
SUNSYNK Single-Phase Hybrid Inverter Datasheet SUNSYNK-12K-SG01LP1 / SUNSYNK-
14K-SG01LP1 / SUNSYNK-16K-SG01LP1 (version 1, 09/22/23).
(4) Calculated based on the surge power and efficiency CEC as published in
SUNSYNK MAX User Manual (version 11, 04/04/23).
(5) Discover AES LiFePO4 42-48-6650 Battery, Peak Discharge Current: 300 A (3
seconds), 130 A DC Continuous Charge/ Discharge, as published in Discover
LiFePO4 42-48-6650 Installation and Operation Manual (805-0065 Rev A).
(6) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power: 218 A
RMS (3 seconds), 95 A DC Continuous Charge/Discharge, as published in Discover
AES RACKMOUNT Installation and Operation Manual (8050043 Rev E).
Inverter Peak = (Inverter Surge Value) / (Inverter Efficiency) / (48V: Low Battery Cut-Off)
Th r ee-Phas e Models| I nv e rt e
r P eak
( 1 0 seconds)| Max Continuous Cha r g e|
Max Continuous Dis c ha r g e| AE S LiFePO 4
42-48-6650
Minimu m per inverte r (2)| AES RACKMOUNT
48-48-5120/ 48-48-5120-H Minimu m per i nv e
rt e r (3)
---|---|---|---|---|---
SUNSYNK-8K-SG04LP3| 342 A (1)| 190 ADC| 190 ADC| 2| 2
SUNSYNK-10K-SG04LP3| 427 A (1)| 210 ADC| 210 ADC| 2| 3
SUNSYNK-12K-SG04LP3| 512 A (1)| 240 ADC| 240 ADC| 2| 3
(1) Calculated based on the surge power and efficiency CEC as published in the
SUNSYNK Three-Phase Hybrid Inverter Datasheet SUNSYNK 8K-SG04LP3 / SUNSYNK
10K-SG04LP3/ SUNSYNK 12K-SG04LP3 (version 14, 05/09/22).
(2) Discover AES LiFePO4 42-48-6650 Battery, Peak Discharge Current: 300 A (3
seconds), 130 A DC Continuous Charge/ Discharge, as published in Discover
LiFePO4 42-48-6650 Installation and Operation Manual (805-0065 Rev A).
(3) Discover AES RACKMOUNT 48-48-5120/48-48-5120-H Battery, Peak Power: 218 A
RMS (3 seconds), 95 A DC Continuous Charge/Discharge, as published in Discover
AES RACKMOUNT Installation and Operation Manual (8050043 Rev E).
LYNK II CAN HARDWARE TERMINATION AND CAN OUT PIN CONFIGURATION
4 .1 LYNK II CAN Termination
NOTE
Disconnect power and all connections to LYNK II before attempting to configure
header jumpers.
Jumpers are used to configure termination for the AEbus or LYNK Network, and
the CAN Out pin assignments. Follow the LYNK II Installation and Operation
Manual (805-0033) to learn how to access and configure the header board
with jumpers.
Detailed pin configurations are included in the LYNK II User Manual but are
repeated here for convenience.
NOTE
LYNK II terminates the AEbus and LYNK Network by default. Do not remove the
termination jumper inside LYNK II unless instructed to do so by Discover
Energy Systems.
4 .2 LYNK II CAN Out – RJ45 PIN Assignments for SUNSYNK Inverters
CAN signals (CAN H, CAN L, CAN GND) can be assigned to any pin of the RJ45
connector on the LYNK II by adjusting the jumpers on the header board.
CA N Out | Heade r Jumper | RJ4 5 Pin |
---|---|---|
CAN L | H2 – 5 – 7 | 5 |
CAN H | H3 – 8 – 10 | 4 |
CAN GND | N/A | N/A |
INSTALLING AND CONNECTING LYNK II TO THE SUNSYNK NETWORK
5 .1 Networking Discover Lithium Batteries with LYNK II
NOTE
- Turn OFF all devices before connecting cables.
- Do not plug an AEbus RJ45 network cable or terminator into the 10/100 Ethernet port of the LYNK II.
- Do not connect a CAT5 or higher cable from the AEbus, LYNK, or Ethernet ports of the LYNK II to a WAN or MODEM port of a network router.
- Mixing the LYNK Network with other networks may result in equipment malfunction and damage.
NOTE
Unless Discover Energy Systems specifies, power electronics must not be
connected directly to the LYNK or AEbus network.
Refer to the LYNK II Installation and Operation Manual (805-0033) for detailed instructions on network layouts, connections, and terminations for compatible Discover Lithium battery models. Some key reminders are provided in this manual.
- At least one battery must be connected to the LYNK Port or AEbus Port on LYNK II.
- A network of batteries will communicate as one battery.
- No more than one network of batteries may be connected to LYNK II.
- Network termination is required for the system’s proper functioning – note some batteries and devices may auto-terminate.
- LYNK II requires power. There are three possible sources: a 13-90 VDC power supply, AEbus Port or LYNK Port-enabled Discover Lithium battery, or a USB device.
- Discover Lithium batteries must be set to ON to supply power and communicate data with LYNK II.
AES LiFePO4 batteries are not internally terminated. The LYNK II communication gateway is internally terminated. When using LYNK II with an AEbus network, install a terminator at the end opposite LYNK II.
NOTE
AES LiFePO4 48 V batteries sold before Jan 1, 2020, will not supply power to
LYNK II using the network cable connection. An external 13-90 VDC power source
connected to the Phoenix 12-pin connector on LYNK II is REQUIRED for the AES
LiFePO4 batteries listed below.
- 42-48-6650 with a serial number before DET424820275xxxx
Both LYNK II and AES RACKMOUNT Battery Modules are internally terminated. No extra termination is required.
5 .2 Connecting LYNK II to the SUNSYNK Network
Before connecting LYNK II to the SUNSYNK network, confirm that the CAN out
pins on the LYNK II are configured correctly. Refer to 4. LYNK II CAN Hardware
Termination and CAN Out PIN Configuration.
Insert one end of a CAT5 or higher communication cable into the LYNK II CAN
out port and the other end into the correct CAN port of the SUNSYNK inverter-
charger.
ENABLING LYNK II TO COMMUNICATE WITH SUNSYNK DEVICES
When properly connected to a managed (closed-loop) network and set to use the
SUNSYNK protocol, LYNK II will transmit real-time parameters from the Discover
Lithium battery, including voltage, current, temperature, state of charge, and
fault conditions to a SUNSYNK inverter-charger. LYNK II will also transmit
charge voltage and current requests from the Discover Lithium battery to a
SUNSYNK invertercharger.
LYNK ACCESS software for 64-bit Windows 10 / 11 is required to configure LYNK
II settings for managed (closed-loop) CAN communication with SUNSYNK
inverterchargers.
If there is a break in communication between the LYNK II and inverter-charger
for more than ten seconds, the inverter-charger will safely stop operation, so
long as the BMS Lithium Batt and the BMS_Err_Stop parameters are both enabled
on the SUNSYNK inverter-charger. The inverter-charger will display an F58 BMS
Communication Fault if communication is lost. The SUNSYNK inverter-charger
will check every five minutes and resume managed (closed-loop) operation if
communication is re-established. However, if communication cannot be
reestablished, you may have to manually convert the SUNSYNK inverter-charger
to a self-managed (open-loop) configuration to resume operation. Refer to A.1
SelfManaged (Open-Loop) Configuration.
NOTE
- In a managed (closed-loop) configuration with the BMS Lithium Batt function enabled, the BMS_Err_Stop parameter must be enabled. If the BMS_Err_Stop parameter function is not enabled, the SUNSYNK inverter-charger will continue to operate based on the last communicated battery values. Depending on the mode of operation at the time of communication fault, and given enough time, the SUNSYNK inverter-charger will eventually put the attached battery into an overcharged or fully discharged state. When that occurs, either situation will trigger the Discover Lithium Battery BMS to self-protect and disconnect the battery from the system.
- Neither Discover Lithium batteries nor LYNK II directly control SUNSYNK relay functions, generator starting or other grid-interactive features. These functions are controlled through the programming of the SUNSYNK inverter-charger.
6 .1 Setting SUNSYNK Managed (Closed-Loop) Configuration
6.1.1 Setting the LYNK II Communication Protocol for SUNSYNK Set the LYNK II
communication protocol and configure managed (closed loop) on the SUNSYNK
inverter-charger.
LYNK II Protocol
-
Download the current version of LYNK ACCESS software from the Discover Energy Systems website to obtain the most up-to-date suite of available protocol configurations.
-
Using a USB cable with a Type-B mini-plug, connect the 64-bit Windows 10 / 11 device running LYNK ACCESS software to the USB port on LYNK II. Ensure LYNK
II is powered and connected to the correct SUNSYNK COM port. Refer to Figure -
SUNSYNK CANopen Connection.
-
Open LYNK ACCESS. Options for configuration and settings are found by selecting the LYNK tab.
-
Connect the LYNK II and open LYNK ACCESS. Ensure that you only have one LYNK device connected to the computer.
-
Open LYNK ACCESS and select the LYNK tab. Select the blue gear icon in the upper right area of the CAN Settings tile.
-
Select the pre-configured SUNSYNK protocol to complete the managed (closedloop) configuration for LYNK II. Click SAVE to confirm the configuration.
NOTE
Saving configuration changes using LYNK ACCESS will automatically cause LYNK
II to shut down and restart.
6.1.2 Setting Managed (Closed-Loop) Configuration on the SUNSYNK Inverter- Charger
NOTE
In a managed (closed-loop) configuration with the BMS Lithium Batt function
enabled, the BMS_Err_Stop parameter must be enabled. If the BMS_Err_Stop
parameter function is not enabled, in the event of a communication error, the
SUNSYNK invertercharger will continue to operate based on the last
communicated battery values.
Depending on the mode of operation at the time of communication fault and
given enough time, the SUNSYNK inverter-charger will eventually put the
attached battery into an overcharged or fully discharged state. When that
occurs, either situation will trigger the Discover Lithium Battery BMS to
self-protect and disconnect the battery from the system.
After selecting the SUNSYNK communication protocol for the LYNK II, complete
the managed (closed-loop) configuration settings on the SUNSYNK inverter-
charger.
Ensure the Discover Lithium Batteries are networked with LYNK II and that the
LYNK II is connected to the SUNSYNK CAN port.
If necessary, first configure SUNSYNK inverter-chargers to operate in parallel by establishing the inverter-charger master/slave relationships and phase designations before setting the parameters for battery operation. Configuring the master invertercharger will cascade parameters and settings to the slave inverter-chargers.
Managed (Closed-loop) Configuration
Refer to the latest Discover Energy Systems documentation for battery values
and the latest SUNSYNK documentation for menu navigation and details on the
setup procedure.
- Set the Discover Lithium batteries to ON and set the inverter-charger to ON.
- Using the touch screen and keypad on the inverter-charger, navigate to Main Screen > System Setup > Battery Setup.
- Specify the battery settings according to the instructions in the table that follows.
- Touch the OK button to save changes.
- Exit and restart the inverter-charger.
NOTE
If using multiple inverter-chargers, configure SUNSYNK inverter-chargers to
operate in parallel before setting the battery operation parameters.
Managed (Closed Loop) – Batt Type
All values and parameters assume an operating temperature of 25 °C.
Ba t t type
Batt type| Select the Lithium option to display Lithium battery associated
settings.
Activate| Select this check box.
Batt Capacity| These settings are handled by the BMS.
Charge Amps
Discharge Amps
CAN RS485| Select the CAN option and specify 0 for the Protocol.
BMS_Err_Stop| Select this check box to cause the inverter-charger to stop
operating if there is a communication error.
If the BMS_Err_Stop check box is cleared, despite a communication error, the
inverter- charger will continue to operate using the last communicated battery
values which will eventually cause the batteries to invoke protection.
Appendix
A .1 Self-Managed (Open-Loop) Configuration
The SUNSYNK inverter-charger will need to be manually converted to a
selfmanaged (open-loop) configuration if managed (closed-loop) communication
cannot be established. Refer to the latest Discover Lithium battery
documentation for battery values and the latest SUNSYNK documentation for
details on menu navigation and the setup procedure.
- Set the Discover Lithium batteries to ON and set the inverter-charger to ON.
- Using the touch screen and keypad on the inverter-charger, navigate to Main Screen > System Setup > Battery Setup.
- Specify the battery settings according to the instructions in the tables that follow.
- Touch the OK button to save changes.
- Exit and restart the inverter-charger.
NOTE
If using multiple inverter-chargers, configure SUNSYNK inverter-chargers to
operate in parallel before setting the parameters for battery operation.
A.1.1 Self-Managed (Open-Loop) — Batt Type
The SUNSYNK inverter-charger will operate in a self-managed (open-loop)
configuration using voltage-based parameters if the BMS Lithium Batt parameter
is disabled and the AGM V parameter is enabled.
All values and parameters assume an operating temperature of 25 °C.
Ba t t type
Batt type| Select the AGM V option.
Lithium (1) : For connecting a Lithium battery in a managed (closed-loop)
configuration.
AGM V: Use battery voltage for all the settings in a selfmanaged (open-loop)
configuration.
AGM %: Use battery SOC for all the settings in a selfmanaged (open-loop)
configuration.
No batt: Option when no battery is connected to the system.
Activate| Select this check box.
Batt Capacity| Set to the number of Discover Lithium batteries x Ah capacity
of each. For example, set to 300 Ah (3 x 100 Ah) for three AES RACKMOUNT
48-48-5120 batteries.
Charge Amps| For a single inverter-charger, set to the lesser of the
inverter- charger’s maximum charge rate or the quantity of attached batteries
multiplied by the battery’s maximum charge rating. For example, set the 8K-
SG05LP1 inverter-charger to the lesser of the inverter-charger’s maximum
charge rate of 190 A, or 285 A for three AES RACKMOUNT 48-48-5120 batteries
that are each rated at a maximum charge rate of 95 A (3 x 95 A = 285 A). (2)
For a three-phase system with three inverter-chargers, set to the lesser
value between the master inverter-charger’s maximum charge rate and the
quantity of attached batteries multiplied by the battery’s maximum charge
rate divided by the number of inverter-chargers. For example, set the 8K-
SG04LP3 inverter-charger to the lesser of the inverter- charger’s maximum
charge rate of 190 A, or 126 A for four AES RACKMOUNT 48-48-5120 batteries
that are each rated at a maximum charge rate of 95 A (4 x 95 A=380 A divided
by three inverter- chargers).
Discharge Amps| For a single inverter-charger, set to the lesser of the
inverter- charger’s maximum discharge rate or the quantity of attached
batteries multiplied by the battery’s maximum discharge rating. For example,
set the 8K-SG05LP1 inverter-charger to the lesser of the inverter-charger’s
maximum discharge rate of 190 A, or 285 A for three AES RACKMOUNT 48-48-5120
batteries that are each rated at a maximum discharge rate of 95 A (3 x 95 A
= 285 A).
For a three-phase system with three inverter-chargers, set to the lesser
value between the master inverter-charger’s maximum discharge rate or the
quantity of attached batteries multiplied by the battery’s maximum discharge
rate divided by the number of inverter-chargers. For example, set the 8K-
SG04LP3 inverter-charger to the lesser of the inverter- charger’s maximum
discharge rate of 190 A, or 126 A for four AES RACKMOUNT 48-48-5120 batteries
that are each rated at a maximum discharge rate of 95 A (4 x 95 A=380 A
divided by three inverter-chargers).
TEMPCO| Set to 0 mv/C/Cell. (3)
(1) Set Disable for the Lithium parameter to disable BMS communication.
Additionally, self-managed communication (open loop) requires clearing the
BMS_Err_Stop check box in the Advanced Function screen.
Setting Enable for the Lithium parameter enables BMS communication and managed
(closed-loop) communication with supported batteries.
(2) SUNSYNK’s recommended maximum battery value for Charge Amps is 75% of the
battery’s rated maximum charge current.
(3) Discover Lithium batteries do not require temperature compensation.
Setting TEMPCO to 0 mv/C/Cell disables inverter-charger controlled temperature
compensation.
A.1.2 Self-Managed (Open Loop) – Batt Charge
All values and parameters assume an operating temperature of 25 °C.
Ba t t charge
Amps| The field on the left-hand side defines the charge amps from the
attached generator.
The field on the right-hand side defines the charge amps from the grid.
Set to the same number of amps as the maximum charge current. (1)
Gen Charge| Select this check box if charging the battery bank from an
attached generator. (2)
A Gen Input Breaker must be connected to the output of an AC generator for
this work.
Gen Signal| Normally open relay that closes when the Gen Start signal state
is active.
Gen Force| When the generator is connected, you can force the generator to
start without meeting other conditions.
Signal ISLAND MODE| When this option is selected and the inverter-charger is
connected to the grid, the ATS port voltage is 0.
When Signal ISLAND MODE is selected and the inverter- charger is not
connected to the grid, the ATS port voltage outputs 230 Vac.
Using this feature along with a NO relay, you can disconnect or bond the
neutral (N) and protective earth (PE) wires in an electrical circuit.
Grid Charge| Select this check box if charging from the grid. (3)
A Grid Input Breaker must be connected to input from the grid for this to
work.
Grid Signal| This signal indicates when the grid should no longer charge the
battery.
Float V
Absorption V
Equalization V| Set the suggested voltage values defined in the associated
battery manual.
Discover Lithium batteries must not be equalized. Setting zero hours ensures
the batteries will not be equalized.
(1) If need be, this value is used to curtail the maximum current output of
the charger.
(2) The options in the left column are for Generator Charge AutoStart values.
Refer to SUNSYNK documentation for information on using the Generator
AutoStart function.
(3) The options in the right column are for Grid Charge values.
A.1.3 Self-Managed (Open Loop) – Shutdown
All values and parameters assume an operating temperature of 25 °C.
Shu t D o wn| AE S Li F ePO4
42-48-6650
(9 00-0034)| AE S R A CKMOUNT
48-48-512 0 / 48-48-5120-H
(900-0062) / (900-0067)
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Shut Down
Low Batt
Restart| 48 V
50 V
52 V| 48 V
50 V
52 V