EO Mini Pro 3 Installation & Commissioning Guide

1.0 Introduction

This document covers the details of the EO Mini Pro 3 product, including:

• Product summary.
• Physical installation.
• Product data.
• Device configuration.
• Advanced features.
• A detailed description of each of the menu pages.

The documentation in this guide is based around Firmware version 1.3.5.

1.1 Product Summary

Important: Information in this document is subject to change without notice as the EO Mini Pro 3 evolves. Please download the latest version from www.eocharging.com/support.

EO Products should be installed by an EO Approved Installer. Please see section 9 for more information.

2.0 Quick Reference Guide

2.1 EO Mini Pro 3 Installation

1. If you have never installed an EO Mini Pro 3, complete the Installer Training on the EO Academy – refer to the training academy link on the support page.
2. Open the EO Mini Pro 3 and use the drilling template on the back of the installer guide to mount the base on the wall.
3. Use the cable template on the installer guide to prepare the input cables (Power and CT clamp connections).
4. Take a photo of the installer label on the inside of the base. This is required for commissioning (step 9).
5. Connect the power cables to the EO Mini Pro 3, using the supplied cable restraint and stepped grommet for ingress protection.
6. Connect the comms cable from the back of the EO Mini Pro 3 to the front, close the unit (put rubber washers on hex bolts) and attach the fascia (insert top first).
7. Power up the EO Mini Pro 3.
8. When the LED changes from white to blue (approx. 2 min), join the Wi-Fi hotspot (e.g., eo-01234567890) using the credentials from the photo taken in step 4.
9. Go to https://10.10.10.1 in a web browser. Click through security warnings. Login with username "Installer" and the password from step 4. Set the following as a minimum:
   1. Smart Charging: Disable default profiles and random delay for safety tests. Re-enable them before handover to the customer as per UK Smart Charging Regs.
   2. Network: Check APN details for GSM enabled units (if required).
   3. Installer: Set Timezone, max current, contact details, tamper (bump=2, tilt=10), and CT clamps (if load management is required).
   4. Load: Configure load management & Solar settings (if required).
   5. CSMS URL: Replace with wss://ocpp.ev.energy:443
10. Log out. The unit is ready for handover. Hand over the customer card for final setup.

2.2 LEDs

2.3 Simple Operation

To use the charging station:

• Ensure the charging station is powered up.
• Plug the cable into the vehicle.
• Plug the other end of the charging cable into the vehicle. The vehicle will start to charge immediately or as per the schedule on the cloud or app.

3.0 Preparation for Installation

3.1 Equipment

Ensure appropriate tools are used to mount the charging stations, along with appropriate power cables, MCB, and RCDs.

3.2 Network (LAN) Connectivity

When using a hard-wired connection to a LAN, ensure a working connection to the client's network is available prior to installation. Otherwise, the charging stations will fail to connect to the CSMS (charge station management system). When connecting to the CSMS, ensure ports 80 and 443 are open.

3.3 Wi-Fi Connectivity

If the EO Mini Pro 3 will use Wi-Fi for its internet connection to a back-office platform, check the strength and integrity of the Wi-Fi signal before fitting the device. A weak Wi-Fi signal may cause the installation to fail. To check for a strong Wi-Fi signal:

1. Ensure a 2.4GHz Wi-Fi network is available.
2. Use a suitable Wi-Fi analyzer mobile app to verify signal stability, strength, and interference levels.
3. Connect a mobile device to the premises' Wi-Fi router (with customer permission).
4. Measure the data rate and signal noise. The data rate should be greater than 5Mbps, and the signal noise [RSSI] value should be less than -67dBm.

If Wi-Fi is not suitable, consider these options:

• Install a 2.4GHz Wi-Fi booster.
• Use the hard-wired Ethernet option.
• Request a charger with a 4G GSM internal modem if a strong GSM signal is available.

4.0 Installation Instructions for the EO Mini Pro 3

4.1 Physical Installation Instructions

1. Remove the EO Mini Pro 3 from the packaging. The fascia is the final component and contains the “Installer Access Label”. The centre section contains the charger socket and main electrical components. The rear housing contains the Wi-Fi and GSM PCB (if applicable).
2. Take a photo of the Installer Label on the base, as it contains the login credentials for software configuration.
3. After verifying Wi-Fi stability and finding a suitable mounting location, use the quick installer guide as a template for the installation location. Ensure the surface is flat and level. Drill through the template to accurately position the mounting holes.
4. Attach the EO Mini Pro 3 base to the wall using the four provided screws. Ensure the charger is secure and flush against the wall. Use packing washers if necessary for a flush fit.
5. Strip and prepare the power cable, feeding it into the pre-made hole and stepped grommet. Use the supplied cable restraint or a 25mm gland (not supplied).
6. Connect the Live, Neutral, and Earth wires to the charger connector block accordingly.
7. If using Ethernet for connection to the client router or if CT clamps need to be fed into the Mini Pro 3, drill out the second aperture and fit a suitable gland.
8. The rear charger housing allows for one rear cable entry as shown. DO NOT drill into any other area of the housing, as this will invalidate the product warranty and could damage the rear internal PCB.
9. If using Ethernet, connect it to the RJ45 female connector on the Mini Pro 3 circuit board.
10. If connecting CT clamps for load management or solar, a four-pin connector block is provided on the lower right. IMPORTANT: If a separate CT wiring label is supplied, follow its instructions as it is specific to the charger version and supersedes this document.

The chart and image show wire designations for load management and solar CT clamps:

CT Destinations:

The supplied CT clamps have a red and white wire. Connect the CT for load management to CT1. Connect the Red wire to position A and the white wire to position B. For an additional solar clamp, connect to CT2, with the red wire to position A and white wire to position B.

Orientate the CT clamps correctly when connecting them to the supply cable. Orientation can be checked on the Info page of the Mini Pro 3 after it powers up (see section 5.1). The clamps have an arrow indicating current flow, which should be oriented with the flow from the supply.

11. Before closing the charger case, ensure the PCB tethering lead is plugged in and connects both front and rear PCB boards together.
12. With all cables securely connected, close the Mini Pro 3 cases, ensuring internal cabling is not trapped. Secure the housings with the four hex bolts and washers.
13. Attaching the fascia to the EO Mini Pro 3 should be done after all testing is complete.

4.2 TN/IT Wiring Connections

The EO Mini Pro 3 can be configured for TN or IT grid types as shown below:

PE = Protective Earth
N = Neutral
L1 = Line/Phase 1
L2 = Line/Phase 2

Set the phase rotation and grid selection (IT/TN) as per the instructions. The EO Mini Pro 3 is now physically installed, and software commissioning can begin.

4.3 Maintenance

The EO Mini Pro 3 should be maintained periodically. Maintenance includes physical cleaning of the unit and the pins of the socket/plug. Additionally, the RCD/MCB should be tested as per the manufacturer's instructions.

5.0 Detailed Description of Web Interface

This section provides a detailed view of the EO Mini Pro 3 web interface.

5.1 Info Page

This page displays important information to determine if the charging station is working as expected. It includes:

• CSMS Connection State: Indicates if the charging station can connect to the OCPP server.
• Status: OCPP status of the charging station.
• Current and current offered: Shows how much current is offered to the vehicle and how much is drawn by the vehicle.
• Faults.
• CT Clamps: If enabled, shows a +VE or -VE value in mA.
• +ve value = current import (from grid into the house).
• -ve value = current export (from the house into the grid).

5.2 Transactions

The transactions screen is divided into two halves:

• Transaction history: Displays historic charging sessions, including energy drawn and duration.

Note: RFID functionality is only applicable to the EO Genius 2.

5.3 CSMS

By default, the charging station connects to the EO Cloud. This must be changed by the installer to point to ev.energy. The following fields should be modified:

• Authorisation Strategy: Local or Remote by OCPP server.
• Default ID Tag mode: Requires authorization by the cloud before starting.
• Default ID Tag: Value sent in Start Transaction message.
• CSMS URL: Must be replaced to point the charger to ev.energy. Use: wss://ocpp.ev.energy:443
• Charger Identity: The OCPP ID required by the server.

5.3.1 RFID Operation

Various RFID options are available, applicable only to the EO Genius 2.

5.4 Smart Charging Profiles

By default, the charging station is programmed with a default charging schedule and a random delay, in accordance with UK Smart Charging Regulations. Ensure these features are enabled when handing over to the customer. The profiles are OCPP Smart Charging Profiles and can be overridden by the OCPP Server.

5.5 EVSE

This page provides detailed information about the firmware and configuration of the charging station. The installer and customer can change the OCPP availability status of the charger:

• Available
• Unavailable

5.6 Network

5.6.1 Ethernet

The Ethernet port is enabled and set up for dynamic DHCP by default. If a static IP address is required, set the DHCP switch to Static and enter the IP address details.

5.6.2 Wi-Fi + Adhoc

The Wi-Fi device operates in two modes:

• Adhoc: Configuration settings for the Wi-Fi hotspot. DO NOT modify these settings, as it can cause the unit to power up without a Wi-Fi hotspot. Recovery requires connecting the station to a router via Ethernet.
• Wi-Fi: Settings used to join the charging station to a local Wi-Fi network.

To view available Wi-Fi networks, click "Refresh List". Select the desired network and click "Use as Wi-Fi SSID". This populates the “Wi-Fi SSID” field, allowing the installer to enter the Wi-Fi password into the “Wi-Fi PSK” field. Static Wi-Fi details can also be used.

5.6.3 GSM

There are three settings for the installer:

• APN URL
• Username
• Password

GSM functionality works in two modes:

• Primary: When the charging station powers up, it checks for an active Wi-Fi or Ethernet connection. If neither is present, it connects to the OCPP server using GSM.
• Backup: If an Ethernet or Wi-Fi connection is present, GSM acts as a backup. After 20 minutes of no connection from Wi-Fi/Ethernet, the device swaps to GSM.

5.7 SCC

This page displays system errors, useful for diagnosing faults. The EO team may request these data logs for charger malfunctions.

5.8 Admin

This page details important support functions:

• System Update: Support may provide a new firmware image to upload.
• OS Firmware Version: e.g., 1.3.5.
• OS Restart: Reboots the charger (approx. 2 min).
• SCC Logs: Download diagnostic logs for offline analysis or to send to Support.

5.9 Installer

This page details important support functions:

• Timezone: Set the local timezone for accurate OCPP schedules (sent in UTC).
• Charger Current Limit: The maximum current limit for the charger.
• Installer Info: Enter installer details for the OCPP Server and support team.

Tilt: A multi-stage process. Ensure the charging station is in its final mounted position for calibration. Enter details (Bump=2, Tilt=10). Click "Save tilt + calibrate". Note: This action removes unsaved information; double-check other entries are saved first.

CT Clamps: If CT clamps are used, enable the following:

• External CT Clamps Enabled - Yes/No
• Ct Clamp 1: Enabled (Yes/No), Rating (e.g., 100A), Location (Source/Site).
• Ct Clamp 2: Enabled (Yes/No), Rating (e.g., 100A), Location (Source/Site).

5.10 Load

The load page works with CT Clamp settings to configure load management. The system is flexible with several load management options:

• Enabled: Yes/No.
• Load balancing mode: Dynamic or Static (to turn off load management).
• Site Limit: The site's limit in Amps (e.g., 60A, 80A, or 100A).
• Load balancing margin: 10% of the Site limit in Amps (e.g., 10A if Site limit is 100A).
• Load Balancing Minimum Change: The amount the site/import CT Clamp reading must change before the station reacts.
• Load Balancing Minimum Delay: Time between changes to advertised power availability.
• Load Balancing Minimum Top Up: Minimum charge rate in TopUp or TopUpEco mode.
• TopUpEco Minimum Threshold: Amount of export required before charging starts in solar mode.

5.10.1 Enabled Different Modes by Using Profiles

For customers selecting different schedules via the ev.energy App, configure the following:

• Enabled: Yes/No (controls different modes via the ev.energy App).
• Load Balancing Profile Mode: Import (default solar mode when a solar schedule is selected by the ev.energy App).

5.11 Solar

The Mini Pro 3 supports several solar modes:

Charging stations can be configured for the following modes:

• 1. Permanent Solar Mode: Device is permanently in solar mode (Net Zero or Solar Matching).
  • Import: Charging rate matches solar inverter output or total site export.
  • TopUp: Charging rate is a minimum of 6A, increasing if solar export exceeds 6A.
  • TopUpEco: Similar to TopUp, but the starting threshold is configurable.
• 2. Solar + Load Management: Customer uses the ev.energy app to charge on full power or solar.
  • Full Power: 00:00 to 04:00
  • Solar: 10:00 to 15:00

5.11.1 Recommended Configurations

6.0 Other

6.1 Firmware Update

Firmware can be upgraded through two mechanisms:

1. Through the OCPP server.
2. Through the Admin Page of the web interface.

When the EO Mini Pro 3 connects to the CSMS, the CSMS will automatically upgrade the unit to the latest firmware version.

6.2 PEN Fault Detection

PME variants of the EO Mini Pro 3 have built-in PEN fault detection. This feature operates continuously while the unit is powered on, with no configuration options required.

If the charging station has PEN Fault Detection (model designator - PME), it will detect errors in the incoming grid connection. If a PEN fault is detected, the vehicle will be isolated from the charging station, and the LED will illuminate solid RED. Charging will not be possible. To restart charging:

• Unplug the vehicle from the charging station.
• Power cycle or remotely reset the charging station.
• If the LED remains RED, the grid connection is outside safety limits. Contact an installer to inspect the supply. A normal pulsing Blue LED indicates the system is safe.

Note: For PME variants, ensure they are ordered at the point of purchase, as they cannot be retrofitted.

6.3 UK Smart Charging Regulations

The EO Mini Pro 3 complies with UK Smart Charging regulations. It is programmed with a random delay (600sec/10min), a default charging schedule (no charging between 08:00-11:00 and 16:00-22:00), and an anti-tamper tilt switch, in addition to auto firmware updates.

6.4 Offline Behaviour

6.4.1 Schedules

By default, the EO Mini Pro 3 follows the last communicated schedule from the OCPP server. If no schedule is sent, it operates according to any schedule set in the "Smart Charging" menu of the web interface.

6.4.2 Load Management

If Local Load management is configured, it operates independently of the OCPP server connection.

6.5 Deleting Customer Data

The only customer data stored is Wi-Fi details. Customers can delete this by logging into the device's web interface and removing it from the Network page.

6.6 Finding the Device on a Local Network

If the customer or installer is on the same IP network as the charging station, the web interface can be loaded via two mechanisms:

• Enter the charger's IP address in the web browser's search bar.
• Enter the charging station's serial number followed by ".local".

An IP Scanning tool can be used to find the IP address.

6.7 Temperature Derating

The charging stations have a temperature de-rating algorithm. The charging rate reduces if internal temperatures exceed thresholds. The charging station reduces the charging rate by 25% if temperatures exceed 65°C for the EO Mini Pro 3.

7.0 Hints and Tips

Utilize the Info page. It indicates what the charging station is doing and aids fault diagnostics. Review CT Clamp readings on the Info page to check correct orientation. Error logs on the SCC page detail any shown errors. In case of an error, download diagnostic logs from the Admin page for the support team.

8.0 Charging Station Specifications

Important: The installer must select the RCD and earthing configuration by following current local regulations and best practices. Follow national guidelines for installation according to local restrictions. For the UK, refer to the current IET code of practice; a Type A RCD & Type B MCB are recommended.

9.0 EO Support Centre

All EO Charging technical documentation is available in the EO Resource Centre at: https://www.eocharging.com/support.

Contact EO Charging to learn more about their products. Their charging experts offer technical support and are ready to help with any questions or issues.

Live Chat: https://www.eocharging.com/contact-us

EO Approved installers can be found by visiting Find an installer | EO Charging.

This document contains information that is subject to change without notice.

The latest version of this publication can be downloaded at: https://www.eocharging.com/support/home-charging/eo-mini-pro-3.

Disclaimer: No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including, but not limited to, copying, recording, retrieving data, or computer networks without the written permission of EO Charging.

9.1 ev.energy Smartphone App Support

EO Charging has partnered with ev.energy to migrate customers to the ev.energy smartphone app for the best charging experience with the EO Mini Pro 3. For issues downloading the app or connecting it to your charger, use the ev.energy live support chat or reach out via email.

Live support chat: https://support.ev.energy/en/support/home
Email: support@ev.energy