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Canadian Solar EP Cube Installation Manual

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EP Cube
Installation Manual
Version: V2.4
www.epcube.com

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Summary of Contents for Canadian Solar EP Cube

  • Page 1 EP Cube Installation Manual Version: V2.4 www.epcube.com...

  • Page 2: Table Of Contents

    Warranty Registration ........................5 Disclaimer ............................5 Copyright ............................5 Abbreviated Terms .......................... 6 Customer Services Contact ......................7 THE EP CUBE SYSTEM ........................8 Standard Components ........................8 A. Hybrid ............................8 B. Smart Gateway ........................... 8 Optional Accessories ........................9 A.
  • Page 3 B. Wiring of “ CT-Kit ” ( Optional ) ....................55 C. Wiring of Hybrid Inverter Mating Connector................56 EXPANSION OF EP CUBE ........................ 58 Wiring of Additional Hybrid (In parallel) ..................58 A. Second Hybrid to Smart Gateway Wiring (For AC Power) .............59 B.
  • Page 4 Check List ............................91 Power Cycle the System .......................91...

  • Page 5: Introduction

    INTRODUCTION This manual describes the installation process and provides a set of guidelines for EP Cube system installers. Please read this manual thoroughly before installing and follow the instructions during entire installation process. If you have any questions regarding the product, please contact the EP Cube Service Team where contact information can be found in the Contact Us section of this manual.

  • Page 6: Abbreviated Terms

    Part Number Photovoltaic Voltage NFPA National Fire Protection Agency National Electric Code United Laboratories Authority Having Jurisdiction Main Service Breaker Circuit Breaker Microgrid Interconnect Device Automatic Transfer Switch OCPD Over Current Protection Device Serial Number EP Cube's Smart Gateway Bluetooth Connection...

  • Page 7: Customer Services Contact

    EP Cube Service Support Phone Number 1-800-761-2990 Email address: service.us@epcube.com ⚫ There are FAQ sections that can also assist in answering any of your questions in the Appendix of this Manual, in the EP Cube App, and on our EP Cube website (www.epcube.com)

  • Page 8: The Ep Cube System

    B. Smart Gateway The Smart Gateway works for home power generation and consumption management by connecting with the utility grid, PV Inverter, EP Cube Hybrid, and home appliances. (Refer to Specification section for more details) Note: Smart Gateway includes a preinstalled circuit breaker for the Hybrid and the control kits for Generator input or PV inverter or EV charger.

  • Page 9: Optional Accessories

    A. Capacity Extend Kit Optional capacity extend kits may be added to the DIN rail for additional EP Cube Hybrid units. These should only be used when more than one Hybrid units are installed on a site with a single smart Gateway.

  • Page 10: Wall-Mount Kit

    Kit. C. E-Stop Button The emergency stop button is very convenient device that can be integrated to EP Cube System through a 12V communication wire to on/off switch device of your choosing where “on” is in the normal closed position. This switch will be perform a rapid shutdown off all equipment connect to the Smart Gateway except for the utility grid and generator Be sure to check your adopted NEC Code for the site, for 2023 NEC Code Section 706.15 requires an remote rapid shutdown...

  • Page 11: The Ep Cube System

    System Scenarios Whole-Home Backup All home appliances can be powered by the EP Cube when a grid power outage occurs in the whole- home backup topology. With a whole home backup installation, the Smart Gateway is installed between the meter with service panel and main load panel. Proper sizing of whole home backup system with sufficient amount of EP Cube Hybrid Inverters &...

  • Page 12: Partial-Home Backup

    Partial-Home Backup In this type of system layout, the EP Cube manages and optimizes the power supply for part of the property owner's loads. Only the backup loads connected to the Smart Gateway busbar terminal or extend ports will be powered when a grid power outage occurs in partial- home backup topology.

  • Page 13: Ep Cube Installation

     It is highly recommended that EP Cube is installed at least more than 1000m away from sea.  It is highly required to install EP Cube in places where it is not directly exposed to sea breeze, sunlight or rain. i.e. sea breeze blocked by a building or home. (Ref. to figure below) If the conditions cannot be met, please install the EP CUBE indoors.

  • Page 14: On-Site Installation

    2. On-site Installation WARNING EP Cube can only be installed, repaired, replaced, and maintained by the EP authorized personnel for safety and warranty purposes. It is prohibited to install any third-party component or devices inside the EP Cube without prior approval from the EP service team.

  • Page 15: Installation Of Hybrid

    Please ensure to avoid the installation of the EP Cube in environments where it is exposed to excessive rain, direct sunlight, dust, flooding, or accumulating snow. During the installation and handling of EP Cube batteries or Hybrid, extreme care is required to avoid dropping, bumping, or stepping on equipment as this can cause damage to the paint or create bent edges.
  • Page 16 that no parts were broken or damaged during transportation. You may check off the unpacking inspection guide provided below. Hybrid Inverter Box Hybrid Inverter Inverter Bracket B2_2pcs Inverter Side Cover A_1pcs Communication Cable_1pcs Inverter Side Cover B_1pcs Resistor_1pcs Hybrid Bracket C_1pcs Hybrid Drill template_1pcs Inverter Side Bracket D_2pcs Inverter Side Bracket D_M5_4pcs...
  • Page 17 Battery Modules Box Battery module Battery Bracket B1_2pcs Battery Side Cover B_2pcs Battery Bracket B2_2pcs Hybrid Bracket C_1pcs Battery Side Bracket F_M5_4pcs Bracket Side Bracket F_2pcs Battery Bracket B_M6_8pcs Base Modules Box Base Hybrid Base Bracket G_2pcs Hybrid Base Side Cover C_2pcs Hybrid Base Bracket G_ M6_4pcs...

  • Page 18: Installation Space

    Step 4 on page 24. ⚫ The EP Cube is UL9540A certified and is exempt from the 3 feet spacing minimum and past UL9540a's battery thermal runaway prevention certification to allow installation spacing of 8...

  • Page 19: Installation Process

    * Minimum clearance required from all sides. C. Installation Process Step-1 Floor mounted - cut the extra piece of drill template For floor-mounted installation of the standard EP Cube system, cut the extra piece of the drill template as shown in the figure below.
  • Page 21 EP Cube Installation Manual Step-2 Floor mounted - Position the mounting holes a. Place the template on the wall with the lower edge aligned with the floor surface. b. Remove the adhesive tape from the edges of the template and affix it to the wall.
  • Page 22 EP Cube Installation Manual Step-3 Install Bracket C on the wall (3 Battery modules system shown as an example below) a. Remove the drill template. b. Position Hybrid Bracket C on the wall, ensuring that the holes align correctly. c. elect anchor bolts or wood screws with washers, with a minimum length of 1-1/2 inches, to install Bracket C on the wall.
  • Page 23 EP Cube Installation Manual 200 in-lbs NOTE: Select a suitable M8 (or similar) bolt/screw to mount Bracket C based on the type of wall. For concrete walls, use a minimum length of M8*3-inch anchor bolts. For wooden walls, use wood screws with a minimum thread length of 1-1/2 inches.
  • Page 24 EP Cube Installation Manual c. Use the drill set to drill 3/8" diameter holes, marked on the floor for Bracket G, with a depth of 3". After drilling, gently insert the sleeve anchor hex bolts (M8*3") into the holes using a hammer.
  • Page 25 Step-1 Wall mounted - cut the extra piece of drill template For wall-mounted installation of the standard EP Cube system, cut the extra piece of the drill template as shown in the figure below. CAUTION: Please ensure a safe distance is maintained between the Hybrid and other objects.
  • Page 26 EP Cube Installation Manual Step-2 Wall mounted - Position the mounting holes a. Use a tape measure, level tool, and pencil to mark a "start line" on the wall. Align the lower edge of the template with the marked start line and place it on the wall.
  • Page 27 EP Cube Installation Manual NOTE: The wall-mounted installation requires one additional bracket C compared to the floor- mounted installation. Step-3 Install Bracket C on the wall (3 Battery modules system shown as an example below) Remove the drill template. b. Position the Hybrid Bracket C to ensure the correct alignment of the holes.
  • Page 28 EP Cube Installation Manual Mounting holes 200 in-lbs Install bracket C on wall NOTE: Select a suitable M8 (or similar) bolt/screw to mount Bracket C based on the type of wall. For concrete walls, use a minimum length of M8*3-inch anchor bolts. For wooden walls, use wood screws with a minimum thread length of 1-1/2 inches.
  • Page 29 EP Cube Installation Manual c. Attach Bracket E to Bracket C using bolts (M8*0.79”). Use a level tool to check for proper alignment, and then tighten the bolts securely with a socket wrench. d. Attach the Base to Bracket E using bolts (M6*0.63") through the oval holes of Bracket G. Place the assembled Base on Bracket E and secure it by attaching Bracket G to Bracket E using bolts (M6*0.63") through the round holes.
  • Page 30 EP Cube Installation Manual Step-5 Install the Battery module with battery brackets B and F a. Carefully place the battery on top of the base and ensure that the battery mating connector sockets are properly aligned. CAUTION: The battery module is heavy. Please use lifting tools or seek assistance from multiple people to safely lift it.
  • Page 31 EP Cube Installation Manual d. Repeat steps “a, b, c” to stack the necessary number of battery modules on top of the base, following the specified configuration. NOTE: Please tighten Bracket F first, and then tighten Bracket B.
  • Page 32 EP Cube Installation Manual e. Tighten all the bolts to the specified torque values. (Refer to Appendix - Torque Values). Step-6 Install the Hybrid Inverter on top of the battery stacks using Inverter brackets B & D. a. Carefully place the Hybrid Inverter on top of the stacked battery modules and ensure that the sockets are properly connected.
  • Page 33 EP Cube Installation Manual b. Install and tighten bracket D Attach Bracket D between the Hybrid Inverter and the adjacent battery module on both the left • and right sides using bolts (M5*0.47"). c. Install Bracket B Attach Inverter Bracket B2 and the protruding brace on the back of the Inverter module using •...

  • Page 34: Installation Of Smart Gateway

    EP Cube Installation Manual d. Tighten all the bolts to the specified torque values. (See Appendix - Torque Values for reference). NOTE: Please tighten Bracket F first, and then tighten Bracket B. CAUTION: Please check the gap between the base, battery, and inverter modules after completing the installation.

  • Page 35: Start Installation

    EP Cube Installation Manual Examine and ensure that the following quantities are correct as per placed order, and that no parts were broken or damaged during transportation. You may check off the unpacking view provided below. Smart Gateway Box Smart Gateway...
  • Page 36 EP Cube Installation Manual NOTE: Select the suitable M8 (or similar) anchor sleeve bolts/screws to mount the Bracket A2 on different types of walls. e.g. minimum length M8* 3” anchor bolts are used for concrete walls and minimum thread length 1-1/2” bolt/screws are used for wooden walls.
  • Page 37 EP Cube Installation Manual Hang SG on bracket A2 Step-4 a. Ensure that both brackets are interlocked correctly. Right view Right view Left view Left view...
  • Page 38 EP Cube Installation Manual b. Then Fasten the Brackets A1 and A2 together with bolts on the both sides with bolts (M6* 0.63” ), and tighten all the bolts to the specified torque values. (Ref. to Appendix-Torque Values). Left Right...

  • Page 39: Ep Cube Wiring

    This section introduces the EP Cube system wiring connections and commissioning steps. WARNING : The EP Cube does not require any annual maintenance. If a malfunction or hidden error occurs, the product may only be installed, repaired, or replaced by the EP authorized personnel for safety and warranty purposes.

  • Page 40: Personal Protective Equipment

    EP Cube Installation Manual B. Personal Protective Equipment Wear the following safety equipment properly to perform installations. Installers must meet the relevant requirements of standards, such as IEC, OSHA, State, and Local laws. CAUTION: Please ensure all circuit breakers are turned off. Wear the appropriate PPE before beginning.
  • Page 41 EP Cube Installation Manual a. Prepare the conduit for PV wiring connections with the Hybrid. Install a threaded adapter or cable gland to tighten up the conduit to Hybrid Inverter. (Hybrid • Inverter Port/Bushing is 3/4" NPT Female threaded). NOTE: Each set of PV cables, PV+ and PV-, must connect to the correct terminal of the Hybrid Inverter.

  • Page 42: Wiring From The Hybrid Inverter To Smart Gateway

    EP Cube Installation Manual 3. Wiring From the Hybrid Inverter to Smart Gateway Step-1 Open the Smart Gateway for wiring Remove the Smart Gateway panel covers: Open the four smart Gateway panel on the side latches and remove the cover by pressing •...
  • Page 43 EP Cube Installation Manual Capacity Extend Kits (CBs) Microgrid Interconnect Device relay For Multiple Hybrids Hybrid CB CTs Terminal Generator Communication E-Stop Grid Terminal Hybrid Communication Extend Port 1 Loads/Grid Extend Port 2 Neutral Terminal Hybrid/Generator/ Inverter Neutral Terminal Loads/Grid...
  • Page 44 EP Cube Installation Manual Note: If more than one Hybrid is connected with the smart Gateway, please refer to Chapter of Expansion of EP CUBE for instructions on wiring. Note: While making connections on neutral terminal, ensure to terminate neutral cables on lower terminals first, and work your way from lower terminals to upper terminals.
  • Page 45 EP Cube Installation Manual Route the Hybrid communication wires through the conduit to connect it to the Smart Gateway CAN & RESS terminal:（Ref. Figure 3) • Use a mini flat-head screwdriver to press the terminal to insert and lock the signal wires.
  • Page 46 If more than one Hybrid units are connected with the smart Gateway, please refer to Chapter of Expansion of EP CUBE for instructions on wiring. NOTE：Knockout for the Hybrid connection at the bottom of the smart Gateway can be used to install a cable gland with a maximum diameter of 2-1/4”...
  • Page 47 EP Cube Installation Manual the gap distance between the two terminals. Hybrid Comm. Wiring with Resistor Step b. Push the spring terminals with the help of a mini flat head screw driver. Step c. Insert the resistor legs in the communication terminals, one leg in CANL1 and the second leg in CANH1 of the Hybrid #2.
  • Page 48 EP Cube Installation Manual Figure 3. Smart Gateway to Hybrid Communication Wiring with Pre-installed Resistor Figure 4. RESS and COM Knockouts...

  • Page 49: Wiring Of Grid And Load Side Connections

    EP Cube Installation Manual 4. Wiring of Grid and Load Side Connections CAUTION： Ensure all circuit breakers are turned off, and PPE is properly worn before getting started. • • Ensure that the property main breaker for the Grid connection is turned off and protected with Lockout/Tagout.
  • Page 50 EP Cube Installation Manual Step-1 Wiring Connection of Grid a. Prepare the conduit for the Utility Grid wiring connection between the Grid psite's Main Service Panel or Subpanel and Smart Gateway, and install a cable gland to install the conduit to the smart Gateway: •...
  • Page 51 EP Cube Installation Manual Step-2 Wiring Connection of Load a. Prepare the conduit for the Load wiring connection between the backed up loads power subpanel and the smart Gateway, then install a cable gland and bushing to tighten the conduit to the smart...

  • Page 52: For Partial Home Backup Configuration

    EP Cube Installation Manual B. For Partial Home Backup Configuration NOTE: In this configuration the “CT-Kit” is installed to monitor the non-backup load power consumption. Step-1 Wiring of Grid a. Prepare the conduit for the Grid wiring connection between the Grid site's Main Service Panel or Subpanel and the smart Gateway.
  • Page 53 EP Cube Installation Manual NOTE: Knockout for the grid connection at the bottom of the Smart Gateway can be used to install a cable gland with a maximum diameter of 2-3/4” or less. Route the Grid wiring through the conduit and connect it to the Smart Gateway’s Grid terminal.

  • Page 54: Wiring Of Other Components

    Remove the press-fit jumper on the smart Gateway PCB board connector “CON8e” between terminals 1+ & 1-. The Emergency Stop wiring is a 12V circuit where EP Cube system remains on when circuit is closed (Normally Closed) Connect emergency stop wires to terminals 1+ &...

  • Page 55: Wiring Of " Ct-Kit " ( Optional )

    EP Cube Installation Manual B. Wiring of “ CT-Kit ” ( Optional ) NOTE: Pay attention to the CT’s orientation, otherwise the system will not work correctly. CT’s direction on L1 shall be from Grid to MCB ( k → L ), and for L2 shall be from MCB to Grid ( k → L ) as shown in picture below.

  • Page 56: Wiring Of Hybrid Inverter Mating Connector

    EP Cube Installation Manual C. Wiring of Hybrid Inverter Mating Connector CAUTION: Do not dock the mating connector when the battery fuse is still connected to prevent electric shock. a. Pull down to open the Battery fuse to disconnect the internal connection of the stacked battery...
  • Page 57 EP Cube Installation Manual b. Dock the Hybrid inverter mating connector as picture shows. c. Push upward to close the Battery fuse.

  • Page 58: Expansion Of Ep Cube

    EP Cube Installation Manual EXPANSION OF EP CUBE EP Cube smart Gateway can integrate a maximum of 6 hybrid units in parallel. In addition, Port 1 (left port) supports connection with any of the three devices from the Generator, PV inverter, and EV charger or home appliance load.

  • Page 59: Second Hybrid To Smart Gateway Wiring (For Ac Power)

    EP Cube Installation Manual A. Second Hybrid to Smart Gateway Wiring (For AC Power) a. Prepare the conduit for the hybrid inverter AC output power wire to the Smart Gateway RESS knockout. Route the Hybrid cables through the conduit to connect it to the reserve capacity extend kit (hybrid circuit breaker) according to the system requirements:（Ref.
  • Page 60 EP Cube Installation Manual CAUTION: Pay attention to terminal labeling and connect the wires accordingly. Refer to the picture below for wiring the L1, H1, GND, PWM, and HJA terminals between the Hybrid and Smart Gateway. During parallel connection when more than one Hybrid units are connected to single Smart Gateway, communication cable runs in series among hybrid units.
  • Page 61 EP Cube Installation Manual Step b. Push the spring terminals with the help of a mini electric flat head screw driver. Step c. Insert the resistor legs in the communication terminals, one leg in CANL1 and the second leg in CANH1 of the Hybrid #2.
  • Page 62 EP Cube Installation Manual Case B: Hybrid Units With Pre-Installed Communication Resistor If the hybrid units already have the communication resistor pre-installed on CANL1 and CANH1 Comm terminals, then during parallel connection of Hybrids remove it from all the hybrid units except the final Hybrid (Hybrid #2) that is connected furthest from the Smart Gateway Comm terminals.

  • Page 63: Extend Port 1 & 2

    EP Cube Installation Manual Note: The Final Hybrid (Hybrid #2) unit furthest away from the smart Gateway communication terminals requires the pre-installed resistor. Do not remove the resistor between the Comm terminals of the Final Hybrid (Hybrid #2) unit. 2. Extend Port 1 & 2 The smart Gateway is equipped with two expansion ports called Extend Port #1 and Extend Port #2.
  • Page 64 EP Cube is retrofitted or newly installed at the site. The installer must ensure that during load side or supply side interconnection with the utility, that all busbars and conductors are protected and not overloaded during the installation &...
  • Page 65 EP Cube Installation Manual CAUTION: Both expansion ports are controlled electronically through relays. As per the NEC code, AC-generating or consuming devices require an over-current protection device (OCPD) before the busbar. So any connected devices, such as an EV charger, generator, or AC-coupled PV system will need an OCPD before it is connected to the port.

  • Page 66: Ep Cube System Commissioning

    This section introduces the EP Cube system’s initial commissioning and operating process. 1. Download and Install the APP Download and install the EP Cube app on the Google Play Store or Apple Store. 2. Create the user account in the APP...

  • Page 67: Ep Cube Startup

    Gateway to the Hybrid system. • During commissioning or when changing commissioning settings in the EP Cube App, ensure that the Smart Gateway and Hybrid have a proper AC electrical power supply, However, the power buttons on the bottom of Smart Gateway &...
  • Page 68 EP Cube Installation Manual a. Install all equipment covers and ensure no live electrical components will be exposed during operation. Connect the Battery Fuse, and then turn on the PV switches in the Hybrid Inverter. Turn on Hybrid #1 Circuit Breaker in the smart Gateway.
  • Page 69 Do not put the covers on this stage. Note: Do not turn on the EP Cube Hybrid and Smart Gateway by pressing in the power on/off buttons on both Hybrid and Smart Gateway on this stage (prior or during commissioning...

  • Page 70: Log In The App By Installer Account

    Login with the installer account in the login page. 5. Commissioning via EP CUBE app System commissioning and setup have been made easy by the EP CUBE app. It enables the user with system commissioning, monitoring and basic troubleshooting by providing errors and fault lists with the installer account.
  • Page 71 EP Cube Installation Manual 1. Device SN: Scan the QR code to add the Smart Gateway SN on the lable of. Note: If the QR code of a certain device cannot be recognized and scanned then input the SN individually by manually typing in inputting the Serial Number.
  • Page 72 4-Wi-Fi Config for Android: it allows you to choose your home WIFI network to connect your device with it. Find your home WIFI from the populated list and input its password and click confirm. Note: EP Cube can only connect with 2.4Ghz WIFI Networks.
  • Page 73 Note: EP Cube can only connect with 2.4Ghz WIFI Networks. Set Wi-Fi Add a new Wi-Fi 5. Device Update: Step 1 for RTU update, and step 2 for EP CUBE update. Step 1: Click the “Check for updates” button to start RTU module update process.
  • Page 74 EP Cube Installation Manual Step 2 EP CUBE update: Click the “Enter EP CUBE Update” button to set the Quantity of the Hybrid. Enter EP CUBE Update -----> Add(Quantity of installed hybrids) ----->Submit Update hybrid 1: Finish the hybrid quantity setting. Start to Update Hybrid 1.
  • Page 75 EP Cube Installation Manual Device Update: Click update button on EP CUBE page to start the update. Once the update is completed successfully, click the finish button. If there are multiple hybrids connected then click on the “Need to update again?” line item to proceed to second hybrid unit update process.
  • Page 76 EP Cube Installation Manual 6- Hybrid Config：If there are 3 hybrids connected to smart Gateway, choose 3 from the dropdown list for the Qty of Hybrid during Hybird config. Set the Qty of Hybird 7- Grid: Choose your system’s backup topology either as partial home or whole home as per actual scenario.
  • Page 77 Finally, add the no. of hybrids and click submit to save information 9- Card Config: It allows activating the cellular internet (4G) for remote monitoring of the EP cube.
  • Page 78 EP Cube Installation Manual 10- Asset: Add Hybrid, battery modules and base according to connected devices in the system. Scan the QR code to add the SN of each module. Note: If the QR code of a certain device cannot be recognized and scanned then input the SN individually by manually inputting the Serial Number.
  • Page 79 EP Cube Installation Manual After completing the finish step, return to home page. Select an appropriate operation mode and Reserve SOC value according to energy usage preferences.

  • Page 80: Switch On The Smart Gateway And Hybrid

    6. Switch on the Smart Gateway and Hybrid Finally, switch on the Smart Gateway, and then switch on EP Cube Hybrid by pressing in its associated button as shown in the pictures. Ensure that all the inputs and outputs are in normal range.

  • Page 81: Important Safety Instructions

    • It is prohibited to touch the EP Cube internal components when it's running. Ensure that the power switch and the breaker of the EP Cube are always turned off prior to all installation, replacement, and maintenance processes. •...
  • Page 82 • Do not place the EP Cube or its components in water or other liquids, or expose EP Cube to flammable gases, other corrosive substances, and heating sources. Otherwise please refer to applicable local codes and UL 9540.

  • Page 83: Personal Protective Equipment

    EP Cube Installation Manual If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna.

  • Page 84: Maintenance

    There are two ways you can check the status of the EP Cube system, the LED indicator on the side of the Hybrid(s) or on the EP Cube App. If the system is in restart process, then LEDs will be flashing. EP CUBE have several warnings associated with this particular case.

  • Page 85: Ep Cube App

    EP Cube Installation Manual 2. EP CUBE APP In an event of fault occurrence, EP CUBE app can help narrow down the possible reasons behind a fault. your EP CUBE App Installer account gives you access to Warning and Fault sections. Login and set your desired device as current device to see logged warnings and faults.

  • Page 86: Frequently Asked Questions

    Frequently Asked Questions 1- Where can I find the EP CUBE Specifications? You can find it in the help section of the EP CUBE app or please visit our website and download it from the support section. https:// www.epcube.com/en-US/ support/document...
  • Page 87 You may also manually increase your reserve soc percentage in the EP CUBE app to retain more energy in the event of a grid outage. The best way to extend your use of EP Cube's battery backup supply during a grid outage is to reduce the use of non- essential and energy-intensive appliances like air conditioners, washing machines, car charging, and electric heaters.
  • Page 88 16- How the generator is integrated with EP CUBE? A generator can be connected using Extend Port 1 of the EP CUBE Smart Gateway. It uses a relay control circuit, and a generator with a maximum rated current of 100A/24kW can be integrated into the system.

  • Page 89: Appendix

    EP Cube Installation Manual APPENDIX 1. Torque Values A. Torque values for fasteners Torque Values Table • N/m (lbs/inch) Bolt Dia.(mm) PCB Panel bolts Countersunk bolts Other bolts 0.5 (4.5) - N/A - - N/A - 1.1 (10) 2.2 (20)

  • Page 90: Recommended Wire Gauges

    #12-4 AWG EV Charger AC Wiring* Ground #8 - #6 AWG IF EP CUBE GATEWAY AND HYBRID TERMINAL ARE ALUMINUM COMPATIBLE Note Aluminum is less conductive and uses 1 wire size up from Copper and check panelboard and breaker terminal label to see if they accept aluminum wire and put anti oxidant lubricant.

  • Page 91: Troubleshooting

    EP Cube Installation Manual 3. Troubleshooting If the EP CUBE System works abnormally, please check and operate the system as below. 4. Check List The table below is mainly help us find the possible cause of the issue. Item Requirements Communication Wiring and resistor Wiring should be correct.

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