SAJ eManager User Manual
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SAJ eManager User Manual

SAJ eManager User Manual

Smart energy controller
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eManager
SMART ENERGY CONTROLLER
V2
USER MANUAL
© 2024 Sanjing. All rights reserved.

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  • Page 1 SMART ENERGY CONTROLLER USER MANUAL © 2024 Sanjing. All rights reserved.
  • Page 2 Preface Thank you for choosing SAJ products. We are pleased to provide you first-class products and exceptional service. This manual provides information about installation, operation, maintenance, troubleshooting and safety. Please follow the instructions of this manual so that we can ensure delivery of our professional guidance and whole-hearted service.

  • Page 3: Table Of Contents

    LED indicators ........................................... 11 2.8. Product specifications ......................................12 Installation ......................................... 13 3.1. Install the eManager ........................................ 13 3.2. (Optional) Install the AC-DC power supply module ............................16 Electrical Connection ....................................... 18 4.1. Connect devices to the EMS ....................................18 4.1.1.
  • Page 4 4.1.2. Scenario: inverter quantity ≥ 2 (parallelling connection) ......................28 4.2. (Optional) Connect the heat pump to the EMS ............................... 37 4.3. (In Australia and New Zealand) DRM connection ............................37 4.4. (In Germany) RCR connection ....................................38 Firmware Update (Optional) ................................... 39 5.1.

  • Page 5: About This Document

    1. About this Document 1.1. Application scope This user manual provides instructions and detailed procedures for installing, operating, and maintaining the SAJ product: eManager ⚫ eManager-Pro (eManager with a Pro-Mate module) ⚫ 1.2. Safety CAUTION: ONLY qualified and trained electricians who have read and fully understood all safety regulations contained in this manual can install, maintain, and repair the equipment.

  • Page 6: Symbol Explanation

    1.4. Symbol explanation Symbol Description Dangerous electrical voltage This device is directly connected to public grid, thus all work to the device shall only be carried out by qualified personnel. No open flames Do not place or install near flammable or explosive materials. Attention: Install the product out of reach of children.

  • Page 7: Safety Instructions

    Incorrect operation or misuse of this device may cause personal injury or device damage. This will void the limit warranty and SAJ will not be responsible for the loss caused by those behaviors.

  • Page 8: Product Information

    2. Product Information 2.1. Application topology diagram 2.2. Main features SAJ eManager smart communication device (hereinafter called the eManager) is applied to the photovoltaic (PV) energy storage system (ESS). It can: ⚫ Manage Energy scheduling: schedule the energy to the loads, batteries, and the grid based on user requirements.

  • Page 9: Package Contents

    Ripple control receiver (RCR) connection in Germany ⚫ 4G communication Working with the AC-DC power supply module, if the eManager needs to work during the off-grid time, the ESS can provide the power supply to the eManager. 2.3. Package contents 2.3.1.

  • Page 10: Pro-Mate

    2.3.2. Pro-Mate Callout Description Quantity Callout Description Quantity Pro-Mate 6-pin connector Antenna 15 kΩ resistance 2.4. Product dimension 2.4.1. eManager Height x Width x Depth (mm): 105.4 x 108 x 67...

  • Page 11: Ac-Dc Power Supply Module

    2.4.2. AC-DC power supply module Height x Width x Depth (mm): 90 x 17.6 x 58 2.4.3. Pro-Mate module Height x Width x Depth (mm): 102.5 x 18.6 x 66.5...

  • Page 12: Upper View

    2.5. Upper view Callout Name Description L1_OUT ONLY applicable in internal CT connection scenario. For connecting the AC power cable for grid phase L1 and supplying power to loads. L2_OUT ONLY applicable in internal CT connection scenario. For connecting the AC power cable for grid phase L2 and supplying power to loads. L3_OUT ONLY applicable in internal CT connection scenario.

  • Page 13: Bottom View

    Name Description For debugging in maintenance. 12V_IN+ and 12V_IN- Input ports for eManager backup power supply. For connecting to the DC output of the AC-DC power supply module. RS485 A1 and RS485 B1 For communication with the inverter(s). RS485 A2 and RS485 B2...
  • Page 14 DO NO1 and DO COM1 For connecting the DI terminals of external devices, so as to control the startup and shutdown DO NO2 and DO COM2 of the connected external devices. CT IA* and CT IA For connecting the wires of three CTs. CT IB* and CT IB Note: The asterisk (*) symbol indicates the positive wire of the CT.

  • Page 15: Led Indicators

    The eManager is working properly. Communication status LED Blinking Green The eManager is connected to the monitoring platform. None The eManager is not connected to the monitoring platform. Reset button You can use a clip to press the button to reset the system.

  • Page 16: Product Specifications

    2.8. Product specifications General parameters Application Home usage Communication Bluetooth, Ethernet, Wi-Fi, RS485 Data collection interval (Min) 5 by default Firmware update Remote or local (Bluetooth) update Data access App or Web Electrical parameters Input AC voltage 96 – 264 V AC Input DC voltage 12 V DC Input frequency...

  • Page 17: Installation

    If only the eManager needs to be installed, the length of the rail is not less than 108 mm. If the AC-DC power supply module needs to be installed with the eManager, the length of the rail is not less than 126 mm.
  • Page 18 Step 2. Install the eManager to the rail. Insert the lower side of the rail into the lower slot on the back of the eManager. Push the eManager upwards until it is secured to the rail. Pivot the eManager until the upper side of the rail is inserted into the upper slot of the eManager.
  • Page 19 Step 3. Install the antenna to the eManager. Remove the stud cap on the upper right corner of the eManager. Install the antenna to the stud and tighten it.

  • Page 20: Optional) Install The Ac-Dc Power Supply Module

    3.2. (Optional) Install the AC-DC power supply module This module is required if the eManager needs to work during the off-grid time. By using this module, the ESS can provide the power supply to the eManager during off-grid time. Procedure Step 1.
  • Page 21 Step 2. Install the AC-DC power supply module to the rail. Pull the tab at the bottom of the module downwards. Insert the upper side of the rail into the upper slot on the back of the module. Pivot the module until the lower side of the rail is inserted into the lower slot of the module. Push the tab at the bottom of the module upwards to secure module to the rail.

  • Page 22: Electrical Connection

    ⚫ This module is only required if the eManager needs to work during the off-grid time. The cables are connected to the ports on the AC-DC power supply module, inverter, and eManager, as listed below: From AC input of the AC-DC power supply module...
  • Page 23 Depending on your inverter model(s) and system connection scenario, choose one of the following connection manners: Inverter models Scenario Inverter quantity = 1 Inverter quantity ≥ 2 (paralleling) H2-(3K-6K)-S2 Section 4.1.1.1 "Single-phase grid, internal Section 4.1.2.1 "Single-phase grid, internal CT connection, RS485 communication...

  • Page 24: Scenario: Inverter Quantity = 1

    4.1.1. Scenario: inverter quantity = 1 4.1.1.1. Single-phase grid, internal CT connection, RS485 communication manner...
  • Page 25 4.1.1.2. Single-phase grid, external CT connection, RS485 communication manner...
  • Page 26 4.1.1.3. Three-phase grid, internal CT connection, RS485 communication manner...
  • Page 27 4.1.1.4. Three-phase grid, external CT connection, RS485 communication manner...
  • Page 28 4.1.1.5. Single-phase grid, internal CT connection, LAN communication manner...
  • Page 29 4.1.1.6. Single-phase grid, external CT connection, LAN communication manner...
  • Page 30 4.1.1.7. Three-phase grid, internal CT connection, LAN communication manner...
  • Page 31 4.1.1.8. Three-phase grid, external CT connection, LAN communication manner...

  • Page 32: Scenario: Inverter Quantity ≥ 2 (Parallelling Connection)

    A maximum of two inverters are connected. LAN communication connection: ⚫ A maximum of ten inverters can be connected parallelled. Connect all the communication cables from the LAN port on the eManager and the LAN port on the inverter to a switch.
  • Page 33 4.1.2.1. Single-phase grid, internal CT connection (current ≤ 63 A), RS485 communication connection If the current exceeds 63 A, use the external CT connection manner. Note: For detailed connection of the AC-DC power supply module, refer to section 4.1 "Connect devices to the EMS".
  • Page 34 4.1.2.2. Single-phase grid, external CT connection (current > 63 A), RS485 communication connection Notes: ⚫ The arrow → on the CT points to the inverter or on-grid loads. In the single-phase grid, the CT wires must be connected to IA* and IA. ⚫...
  • Page 35 4.1.2.3. Three-phase grid, internal CT connection (current ≤ 63 A), RS485 communication connection If the current exceeds 63 A, use the external CT connection manner. Note: For detailed connection of the AC-DC power supply module, refer to section 4.1 "Connect devices to the EMS".
  • Page 36 4.1.2.4. Three-phase grid, external CT connection (current > 63 A), RS485 communication connection Notes: ⚫ The arrow → on the CT points to the inverter or on-grid loads. In the three-phase grid, the CT wires for the L1, L2, and L3 lines must be connected to the three pairs of CT ports in order: IA* and IA, IB* and IB, IC* and IC.
  • Page 37 4.1.2.5. Single-phase grid, internal CT connection (current ≤ 63 A), LAN communication connection If the current exceeds 63 A, use the external CT connection manner. Note: For detailed connection of the AC-DC power supply module, refer to section 4.1 "Connect devices to the EMS".
  • Page 38 4.1.2.6. Single-phase grid, external CT connection (current > 63 A), LAN communication connection Notes: ⚫ The arrow → on the CT points to the inverter or on-grid loads. In the single-phase grid, the CT wires must be connected to IA* and IA. ⚫...
  • Page 39 4.1.2.7. Three-phase grid, external CT connection (current ≤ 63 A), LAN communication connection If the current exceeds 63 A, use the external CT connection manner. Note: For detailed connection of the AC-DC power supply module, refer to section 4.1 "Connect devices to the EMS".
  • Page 40 4.1.2.8. Three-phase grid, external CT connection (current > 63 A), LAN communication connection Notes: ⚫ The arrow → on the CT points to the inverter or on-grid loads. In the three-phase grid, the CT wires for the L1, L2, and L3 lines must be connected to the three pairs of CT ports in order: IA* and IA, IB* and IB, IC* and IC.

  • Page 41: Optional) Connect The Heat Pump To The Ems

    4.2. (Optional) Connect the heat pump to the EMS If a heat pump needs to be used, the eManager provides two pair of DO ports. You can use either pair of the ports. NO1 and COM1 ⚫ NO2 and COM2 ⚫...

  • Page 42: In Germany) Rcr Connection

    4.4. (In Germany) RCR connection According to the local regulations in Germany, an RCR device is required. You can connect the RCR device to the following DI terminals (highlighted in green) at the bottom of the Pro-Mate module.

  • Page 43: Firmware Update (Optional)

    5. Firmware Update (Optional) This operation is only applicable when the inverter firmware version is not compatible with the EMS firmware version. In this case, you need to upgrade the current inverter firmware version to a compatible one. Check whether your inverter firmware versions (DSP version and ARM version) is earlier than the below listed ones. For detailed operations, refer to section 6.6 "View the inverter firmware version".

  • Page 44: Remote Upgrade (Web Platform)

    5.1. Remote upgrade (Web platform) Step 1. Log in to the Elekeeper Web platform: Europe: https://eop.saj-electric.com ⚫ China: https://op.saj-electric.cn ⚫ Other countries or regions: https://iop.saj-electric.com/ ⚫ Step 2. On the left navigation pane, choose Service > Firmware Upgrade. On the right pane, click Remote upgrade.
  • Page 45 Step 3. Select Inverter or Communication module to display corresponding devices. Note: No need to upgrade the battery.
  • Page 46 Alternatively, you can locate the required device based on its SN: Click Filter to display the detailed search box. Input the SN and click OK.
  • Page 47 Note: For batch upgrade, separate the device SNs by using the comma (,). Step 4. Select the required device and click Device upgrade.
  • Page 48 Step 5. Select the firmware version: To upgrade to the up-to-date firmware version, select the latest firmware version; to upgrade to a specific firmware version, click Upload local upgrade package to upload the local upgrade file. Set the upgrade time: Depending on your needs, upgrade the firmware right now or in a specific time: ⚫...
  • Page 49 Step 6. Click Upgrade record and then click the icon under Operation to view the upgrade details (including the upgrade status and result).
  • Page 50 Upgrade status: Being upgraded. Note: Here takes the communication module as an example. Upgrade status: Upgrade successfully. Note: Here takes the communication module as an example.

  • Page 51: Local Upgrade (Web Page And App) (Bluetooth Connection)

    5.2. Local Upgrade (Web page and App) (Bluetooth connection) Before you start The firmware package has been uploaded. If any question, contact SAJ technical support. Procedure Step 1. Log in to the Elekeeper Web platform: ⚫ Europe: https://eop.saj-electric.com ⚫ China: https://op.saj-electric.cn...
  • Page 52 Step 2. Log in to the Elekeeper App. Select the required EMS device (eManager: , wherein indicate last five digits of the EMS device SN). Tap Firmware Update and then tap the device to be upgraded.
  • Page 53 Step 3. On Firmware Update, select the latest version and tap Update. On the displayed dialog box, tap OK to confirm the upgrade. During the upgrade, the Bluetooth connection will be disconnected. After the upgrade, reconnect the Bluetooth and tap Firmware Update again to check the upgrade result.

  • Page 54: Operations After The Upgrade

    5.3. Operations After the upgrade Step 1. Use the AIO3 module installed on the inverter to make sure that all the following conditions are met: the inverter is set to no meter status; the parallelling mode is disabled; and the export limit function is disabled. Step 2.

  • Page 55: Commissioning By The App

    6. Commissioning by the App The Elekeeper App can be used for both nearby and remote monitoring. It communicates with different devices through Bluetooth or Ethernet connection. The detailed operations on the App might vary, depending on the version you are using. 6.1.
  • Page 56 — No account? Apply for a new account for login. Tap the three-dot icon on the top right corner. Choose the language and network node based on your needs. Tap Register. Choose whether you are an owner, an installer, or a distributor. Note: For commissioning convenience, it is suggested that the install apply for the owner account.

  • Page 57: Perform The Initialization Settings

    6.3. Perform the initialization settings Before you start Enable the Bluetooth function on your mobile phone. Procedure On the Home or Service page, tap Remote Configuration. Tap Bluetooth and then Next.
  • Page 58 Choose your EMS device (eManager: ) from the device list. Then, tap Initialization. xxxxx Note: are the last five digits of the serial number (SN) of your EMS device.
  • Page 59 Network configuration Select Ethernet or WiFi according to your needs. Set the related parameters. Note: To use Ethernet, make sure that the Ethernet cable is connected from the ETH port on the eManager to the LAN port on the router.
  • Page 60 Make sure that all inverters are added in the corresponding RS485 connection setting area. For example, when two inverters are connected to the RS485_A1 and RS485_B1 ports of the eManager, both the two must be added to the RS485_1 setting area.
  • Page 61 ⚫ LAN parallelling connection Tap Refresh in the LAN setting area to display the connected devices.
  • Page 62 Wiring method If you choose External CT, select the ratio of the CT(s) used in your system.
  • Page 63 Policy configuration By default, Current policy is set to Peak clipping and valley filling. If you need to change it, contact SAJ for consultation.
  • Page 64 To create a policy, tap Template on the upper right corner. Tap Local addition. Name the policy. In the following screenshot, Test is used as an example. In the Priority strategy setting area, enable or disable the following functions: ⚫ SOC Protection: If enabled, set the battery SOC (upper threshold for charging and lower threshold for discharging) to prevent battery over-charging or over-discharging.
  • Page 65 Notes: You can set a maximum of 12 periods for one day and set different work statuses (charging, discharging, and standby) for each period. The charging and discharging power set in this step will apply to the whole system. If Self-Consumption mode is enabled, the inverter works in the self-consumption mode in standby status.
  • Page 66 To apply policies, select weekly or monthly for temporal strategy. ⚫ weekly: Set a policy for each week. ⚫ monthly: Set a policy for each month. No impact: One policy is used in working days and weekends for a month. Working days, weekends: Different policies can be used in working days and weekends for a month.
  • Page 67 Tap a period to select the policy for it. You can select Single modification to set the policy for each period one by one; or you can select Modify all to apply the same policy to all periods.
  • Page 68 Export limitation settings If Export limitation is enabled, set Selling Power Limit.
  • Page 69 Safety settings Select Country and Grid Compliance. For Grid Compliance, select the value according to your setpoint (region of installation). Taking Australia as an example: AS4777_AustraliaA: For large interconnected power systems. For example, all Australian networks other than those ⚫ specified below.

  • Page 70: View The Ems Settings

    6.4. View the EMS settings After the initialization is completed, view the EMS settings for double check, especially check the followings: Tap the eManager to view its information. Basic information: You can view the detailed information as shown below. ⚫...
  • Page 71 ⚫ Module settings: You can view or change the current node and the interval for reporting events.
  • Page 72 Choose Network configuration > Network Diagnosis to verify that the network connection is normal. Tap Device List and verify that all required devices are added. If you need to change the default settings of the Battery brand and Lower limit of battery charging capacitance (off-grid) parameters, tap the required device in Device list, set the values, and save the changes.

  • Page 73: Set The Dry Contact Function

    6.5. Set the dry contact function If you have connected an external device to a pair of DO ports on the eManager, enable the dry contact as follows: On the eManager device page, tap Dry contact setup. Enable the dry contact function. Tap Save.
  • Page 74 On the detailed setting page, select the required DO port pair: ⚫ DO1 on/off control: DO NO1 and DO COM1 ⚫ DO2 on/off control: DO NO2 and DO COM2 Note: The dry contact function can only be set for one pair of DO ports.
  • Page 75 Task Settings ⚫ To add a task, tap Add Task and set the time and start-stop control manner.
  • Page 76 ⚫ To modify a task, tap the period to reset the time and start-stop control manner. To remove a task, tap the icon of this task. ⚫ To enable or disable a task, tap the icon of this task. ⚫...
  • Page 77 Open task hold time: Here takes the value 5 min as an example. Once a task starts, even if it is detected that the execution conditions of this task fail to be met, the task will stop only after five minutes.

  • Page 78: View The Inverter Firmware Version

    6.6. View the inverter firmware version On the inverter main page, tap Device info. On Basic info, view the values of Display Board Version (ARM) and Control Board Version (DSP).

  • Page 79: Create A Plant

    6.7. Create a plant On the Home page, tap Create Plant. Select Create Plant for Owner. Alternatively, on the Management page, tap the icon on the top right corner and select Create Plant for Owner.
  • Page 80 Apply for an account for the end user. Tap Register the owner's account. Set the required parameters based on the actual conditions of the end user. Tap Register, Create Plant for Owner, and then Register the owner's account.
  • Page 81 Configure the plant details based on your actual conditions. Set the name, capacity, country or region, location, detailed address, user type, number of components, and PV panel azimuth. Tap Create Plant. Scan the EMS SN to add the device. Double check whether all devices added to this EMS are displayed. If not, check whether there is any communication error occurs between the EMS and the inverter.

  • Page 82: Appendix

    Check the product warranty conditions and terms on the SAJ website: https://www.saj-electric.com/ 7.3. Contacting support Guangzhou Sanjing Electric Co., Ltd. Address: SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong, P.R.China. Postcode: 510663 Website: https://www.saj-electric.com/ Technical Support & Service...

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