Delta AC MAX EU-Basic Version: Installation and Operation Manual
Version: 1.0.4
Issue date: 2023-01
AC MAX Basic Firmware Version 5.1
Information
Copyright
The ownership and all intellectual property rights of this Installation and Operation Manual (this "Manual"), including but not limited to the content, data and figures contained herein are vested by Delta Electronics, Inc. ("DELTA"). The Manual can only be applied to operation or use of the device. Any disposition, duplication, dissemination, reproduction, modification, translation, extraction or any other usage to the Manual is prohibited without obtaining DELTA's prior written permission. As the product will be developed and improved continuously, DELTA may modify or update the Manual from time to time without any notice. DELTA disclaims any kinds or forms of warranty, guarantee or undertaking, either expressly or implicitly, including but not limited to the completeness, accuracy, non-infringement, merchantability or fitness for particular purpose or usage. Copyright © 2021 Delta Electronics, Inc. All Rights Reserved.
Intended Use
The device is developed, manufactured, tested and documented according to the safety standards. If you comply with the instructions and safety instructions described for its intended use, the product normally will not pose any danger in terms of property damage or to the health of people. The instructions contained in this manual shall follow to the letter. Otherwise, sources of danger may be produced or safety equipment may be rendered inoperable.
This device may only be used to charge Battery Electric Vehicle or Plug-in Hybrid Electric Vehicle in accordance with the following regulations:
- Mode 3 charging according to IEC 61851-1 for electric vehicles with non-gas discharged batteries.
- Use with plugs and sockets according to IEC 62196.
In addition, the following conditions apply for intended use:
- The device is exclusively for stationary installation.
- The device is designed for installation on a wall or pedestal.
- The device can be used for indoors and outdoors.
The following uses are considered as not intended:
- The charging of electric vehicles with gassing batteries is not permitted.
Safety Instructions
Before installing, commissioning, and operating of the EVSE, review this manual carefully and consult with licensed contractors, licensed electricians and installation experts to ensure compliance with local building practices, climate conditions, safety standards, and state and local codes. DELTA is not responsible for damage caused by failure to follow the safety instructions and work instructions in this manual.
[DANGER] Risk of electric shock
Dangerous voltages and currents can occur during operation of the EVSE. Therefore, before carrying out any work on the EVSE, take the following protective measures:
- Disconnect all electrical power prior to installing the EVSE. Failure to do so may result in electric shock, physical injury or damage to the electrical system and charging unit.
- Do not remove circuit protective devices or any other component until all electrical power is disconnected.
- Secure the working area against access by unauthorized persons.
The EVSE must be connected to a grounded, metal, permanent wiring system or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grounding terminal or lead on the EVSE.
Use a measuring instrument to check that there is no voltage.
Use appropriate protection when connecting to the main power distribution cable.
[DANGER] Risk of electric shock
Dangerous voltages and currents can occur when operating the EVSE.
- Do not use the device to charge or supply other devices.
- Do not touch the contact pins of the charging plug when operating.
- Do not use adapters, conversion adapters or cord extension sets with the EVSE.
- Do not use this EVSE if the flexible power cord or charging cable is frayed, the insulation is broken, or the device shows signs of damage.
[WARNING] Close the charging plug with the protective cap when not in use.
Damaged cables may only be replaced by electricians.
Do not use this EVSE if the enclosure or the vehicle connector is broken, cracked, open, or shows any signs of damage.
Only pull the charging cable out of the charging socket by the charging plug.
[CAUTION] Risk of tripping
People can trip over cables lying around.
- Always hang the charging cable in the holder supplied with the EVSE after use.
- A device using pressure connectors for field wiring connections must be supplied with instructions that specify a range or nominal value of the tightening torque to be applied to the terminal screws of the connectors.
- Any repair work as well as the replacement of components on the EVSE may only be carried out by DELTA. Otherwise the warranty will become void.
- Damaged or illegible safety labels must be replaced.
- The EVSE can only be installed by licensed contractors, or licensed electricians in accordance with all applicable state, local and national electrical codes and standards in a location with non-restricted access.
- To ensure the ingress protection degree IP55, seal all external connections adequately. Seal unused connections with the caps provided.
- Warning notices, warning symbols and other markings attached to the EVSE by DELTA must not be removed.
Operator's Duty of Supervision
As the operator of the EVSE, you are responsible for the safety of the users and its proper use.
As the operator of the EVSE, you are responsible for the safety of particularly vulnerable persons, especially children. Ensure that such persons maintain a sufficient safety distance from the EVSE and the charging cable.
Consider the emergency routes at the installation site.
Do not install the device at potentially explosive atmosphere areas (Ex areas).
In case of risk of electric shock, fire or explosion, please press the emergency button immediately, which will turn off all input and output to ensure safety. Once the emergency button is pressed, the operator shall be informed and the EVSE shall not restart until the technician reset the EVSE.
Model Series
The following describes the segmentation used to describe the basic features of each available model:
EIAW - X XXK X X X X X XX
| Segment | Item | Description |
| 1 | E: AU/NZ, EMEA, SEA, G: China J: Japan T: Taiwan U: Canada, US | Indicate the available region |
| 2 | From 1-99: 7: 7 kW 11: 11 kW 22: 22 kW | Indicates the nominated maximum output power |
| 3 | S: Single phase T: Three phase | Indicates the phase of input rating |
| 4 | B: Basic S: Smart P: Premium | Indicates the version of EVSE |
| 5 | U: SAE J1772 plug E: IEC 62196-2 plug S: IEC 62196-2 socket H: IEC 62196-2 shutter G: GB/T 20234.2 plug | Indicates the charging interface |
| 6 | From 1-9: 5: 5 m 7: 7 m | Indicates the cable length (0 for socket or shutter) |
| 7 | From A-Z: A: Generation A B: Generation B | Indicates the product generation |
| 8 | From 01-99 | Indicates the serial code of EVSE |
Product Overview
Scope of Delivery
A white and grey electric vehicle charging station (EVSE) unit mounted on a wall, with a black charging cable neatly coiled and attached to a hook.
| Part | Description | Part | Description |
| EVSE* 1x | Mounting bracket 1x | ||
| Template 1x | Torx T30 mounting bolts 4x | ||
| No. 8 wood screws 2x | 1/4 inch expansion bolts 2x | ||
| Quick installation guide 1x | Safety instructions 1x |
Additional Components
| Part | Description | Part | Description |
| Cable gland 1x | wood screws 2x | ||
| Control board 1x | Cable holder* (For plug version only) 1x | ||
| Key 1x |
*Depends on model configuration
Recommended Tools
The following tools are recommended for the installation of product:
| Part | Description |
| Electro drill | Used for masonry walls |
| Pencil | |
| Spirit level | |
| Terminal crimper | Crimping input wire |
| Torque wrench | |
| Torque screwdriver (cross) | Securing mounting bracket to masonry walls or stand |
| Torque screwdriver (slotted) | Securing mounting bracket to masonry walls or stand |
| Torx T20 screwdriver | Securing front cover and middle cover |
| Torx T30 screwdriver | Securing mounting bracket |
Installer-Supplied Components
Installers may prepare the following parts:
- Conduit of appropriate size or cable gland (M32) for input power wires to ensure the water resistance.
- DIN 46228-4 Cord end terminal: Please use the cord end terminal for split conductors while installation.
Current 16 A 32 A Pin length 18 mm 18 mm Wire range 4 mm² 10 mm² - Upstream breakers: To reduce the risk of fire, only connect to a circuit with circuit breaker conforming to IEC 60898-1.
Model Circuit breaker specification EIAW-E7K 40A min., 230V min., 2 poles, Type B EIAW-E11K 20A min., 400V min., 4 poles, Type B EIAW-E22K 40A min., 400V min., 4 poles, Type B
Overview of Components
Diagram showing the components of the EVSE:
- Mounting bracket
- Key switch
- Body
- LED bar
- Cable gland
- Middle cover
- Vehicle connector
- Socket/ socket with shutter
- Front cover
- Water proof cap
Installation
Preparation Before Start
Installation Site Selection
AC MAX can be installed in both indoor and outdoor environments. It is necessary to consider the installation conditions and protection at the site:
- Follow local electrical regulation and installation standards.
- Consider the emergency routes at the installation site.
- Do not install the device at potentially explosive atmosphere areas (Ex areas).
Recommended Installation Positions
Diagram showing recommended and alternative positions for connecting the EV to the EVSE.
Recommended Installation Space
Installers shall follow applicable accessibility requirements for the mounting position. The EVSE shall be mounted at a height between 800 mm (31.5 inches) and 1200 mm (47.2 inches) above ground.
Diagram showing front and top views with recommended spacing dimensions for installation.
Optional Emergency Button
Installers shall install a waterproof box (at least IP 44) and an isolator switch that both complies with local codes. Installers assemble the MCB and Type A RCD in the waterproof box, then install the Isolator switch at front end of the box, as shown in below circuit wiring diagram.
Circuit wiring diagrams for single-phase and three-phase connections, including MCB, RCD, Isolator Switch, and Emergency Button.
Installation Steps
Remove Front Cover and Middle Cover
Steps to remove the front and middle covers of the EVSE:
- Remove the screw located at the bottom of the front cover by using a Torx T20 screwdriver.
- Pull the front cover upward to separate it from the EVSE.
- Remove the screw located at the middle cover by using a Torx T20 screwdriver.
- Remove the middle cover.
Mark Drill Holes
The EVSE is a stationary wall-mounted equipment. Using the template to mark the screw locations for the mounting bracket and cable holder (optional).
Secure Mounting Bracket
Steps to secure the mounting bracket:
- The cable holder is optional and depicted in the figure for demonstration purposes. The following are recommended bolt types:
- Masonry walls: 1/4" expansion bolts. Torque: 8.8 N·m (78 lb·in)
- Finished walls supported by wood studs: #8 wood screws of 2" or above screw length. Torque: 3 N·m (26 lb·in)
Diagram showing the alignment and securing of the EVSE to the mounting bracket using Torx T30 screws.
Align the EVSE with the screw holes on the mounting bracket.
Secure the EVSE on the mounting bracket with the supplied Torx T30 screws. Torque: 1.5 N·m (13 lb·in)
Configure Dip Switches
Configure the dip switches with the following steps:
Phase Unbalance Protection
Choose pin 1 to enable or disable phase unbalance protection. When enabled, the protection limits phase unbalance to 15 A.
Configuration tables showing DIP switch settings for disabling (default) and enabling phase unbalance protection.
Note: The unbalance current rating can be changed via Bluetooth with the AC MAX App. The configured unbalance must comply with the specifications of the grid code in force at your installation site. The password to reach this setting in the AC MAX App is: 0000
Authorization Mode
Choose pin 2 to configure the authorization mode for Bluetooth availability.
Configuration tables showing DIP switch settings for Key switch (default) and Bluetooth authorization.
If pin 2 is set to OFF (left), the key switch must be turned ON to start a charging session. Bluetooth authentication is deactivated, but the app can still connect for configuration, monitoring, and updates. If pin 2 is set to ON (right), the charging session can only be started from the Delta AC MAX App. Key switch authentication is deactivated.
Grounding System
Choose pin 3 to configure the grounding system for TT/TN or IT system.
Configuration tables showing DIP switch settings for TT/TN (default) and IT grounding systems.
If pin 3 is set to OFF, the wallbox is configured for TN/TT grids and continuously monitors the availability of the protective earth conductor. If impedance is too high, the wallbox indicates a problem via the status LED. If pin 3 is set to ON, the wallbox is configured for IT grids and monitors that no protective earth conductor is connected. If a protective earth conductor is recognized, the wallbox indicates a problem by the status LED.
Maximum Current Setting
Choose pins 4-6 to configure the maximum output current ratings.
Configuration tables showing DIP switch settings for various maximum current ratings (6 A, 8 A, 10 A, 12 A, 16 A, 20 A, 24 A, 32 A).
* Depends on model configuration. For AC MAX models with a maximum current of 16 A, configurations 20 A, 24 A, and 32 A limit the maximum output current to 6 A.
Note: Some vehicles do not start the charging session at 6 A.
Connect Input Wire
Steps for connecting the input wire:
- Install the copper wire as described. The section of copper wire connected to the terminal shall have enough tolerance to prevent any tension or stress from external force. Note: Copper wire type: 10 mm², 70°C.
- Insert the input wire into the terminal accordingly. The cord end terminal shall be inserted to the end without any deviation. Note: Bottom-fed/rear-fed is available for indoor/outdoor installation with cable gland.
- Make sure the terminal block is secured correctly.
Dry Contact
Use appropriate wires (0.75 mm²) and connect each to the correct terminal connector for dry contact connections shown on wiring schemes (Left 1: NO, Left 2: COM).
Note: The product provides a closing signal when unable to close the output. Certain breaker types trip to stop output when a closing signal is accepted. This is a mandatory requirement for the Netherlands and Italy.
Wiring Diagram
Diagrams illustrating wiring configurations for single-phase and three-phase connections across various grid systems (TT, TN-C, TN-S, TN-C-S, IT).
Notes for UK installations:
- When installed in TN systems, the supplying circuit shall not include a PEN conductor (combined protective and neutral).
- If the power grid belongs to a TN-C-S system, the charger needs to be grounded separately to a TT system. A PME earthing facility shall not be used as the means for the protective conductor contact of a charging point located outdoors.
Optional Active Power Control
Users can control the EVSE with external components (e.g., a ripple control receiver from the power supplier, a domestic controller, a time switch, a combination lock, a photovoltaic system, etc.).
Notes:
- Ensure that hazardous voltages are isolated safely.
- Charging stations with a rated power > 12 kVA shall be equipped with control equipment for network integration via an interruptibility by the network operator in Germany.
Diagram showing attachment of the control board to the inner surface of the EVSE based on the bottom line.
Connect Control Board
Steps to connect the control board:
- Remove the water proof cap and pass through the signal cable with appropriate conduit or cable gland.
- Connect the signal cable according to pin definition (2.2.6.1) and must connect to the Pin 1 (+5V). Note: suggested wire of signal cable: 1.5 mm².
- Assemble the connector.
- Connect the control board.
Pin Definition
User can connect the external component with signal cable based on the following configuration. The output power will be adjusted by the following pin definition once the grid power is limited by the network operator. The power limitation is based on rated output power configured by dip switches (2.2.4.4).
Configuration A
Connect the signal cable with Pin 1 and Pin 5 as below:
| Pin 2 | Pin 3 | Pin 4 | Pin 5 | Power limitation |
| Low | Low | Low | Low | Output 100% power |
| Low | Low | Low | High | Stop charging |
Configuration B
Connect the signal cable with Pin 1 to Pin 5 as below:
| Pin 2 | Pin 3 | Pin 4 | Pin 5 | Power limitation |
| Low | Low | Low | Low | Output 100% power |
| High | Low | Low | Low | Output 87.5% power |
| Low | High | Low | Low | Output 75% power |
| High | High | Low | Low | Output 62.5% power |
| Low | Low | High | Low | Output 50% power |
| High | Low | High | Low | Output 37.5% power |
| Low | High | High | Low | Output 25% power |
| High | High | High | Low | Output 12.5% power |
| Low | Low | Low | High | Stop charging |
Optional ModBus RTU via RS485
To connect the wallbox with an external (Home) Energy Management System (H)EMS, connect two communication wires to the RS485 terminal.
Image showing RS485 terminals (Pin4 RS485 D+, Pin5 RS485 D-) on the control board.
The default RS485 settings are 8N1:
- Data bits: 8
- Parity bit: None
- Stop bit: 1
- Baud rate: 19200 Baud
Note: The Modbus settings can be changed via Bluetooth with the AC MAX App. The password to reach this setting in the AC MAX App is: 0000
Secure Middle Cover and Front Cover
Steps to secure the middle and front covers:
- Recover the middle cover on the EVSE and secure the middle cover by using Torx T20 screwdriver. Torque: 1.2 N·m (10.5 lb·in)
- Note: rubber sealing shall be put on the appropriate position before recovery.
- Recover the front cover on the EVSE.
- Secure the screw located at the bottom of the front cover by using a Torx T20 screwdriver. Torque: 0.5 N·m (4.4 lb·in)
Enabling the Charging Function
The key switch is located on the side of the product. The EVSE is authorized to charge when the key switch is in the "On" position.
Note: This applies only, if the Authorization mode is set to Key switch.
Operation
Turn on the upstream breaker. The indicator flashes in yellow during a system self-test. After the self-test completed, the indicator illuminates in blue and the EVSE is ready to charge.
Optional Connect the AC MAX App
- Search on the Apple App Store or Google Play for Delta AC MAX App and install the app on your smartphone.
- Open the app and follow the instructions on the connect screen. Note: If there is no QR code on the back of your quick installation guide, your AC MAX was produced before the compatibility with the AC MAX App. In this case, open the firmware update manual in the AC MAX App and follow the instructions to upgrade your wallbox.
- The required password to enter the advanced settings is 0000.
Start Charging
- Connect the vehicle connector to vehicle inlet. Note: for socket or socket with shutter model, please connect the plug to EVSE first.
- Authorize the charging session either by setting the key switch to ON or via the AC MAX App, dependent on the DIP switch number 2 (2.2.4.2 Authorization mode) configuration.
- The indicator flashes blue to indicate the charging is initiated.
Stop Charging
- Stop charging session at the vehicle.
- Disconnect the vehicle connector from the vehicle inlet. Note: the plug would be locked by the EV and please unlock the plug if needed.
- Recover the vehicle connector to vehicle connector inlet.
LED Indicator
| Status | Description |
| Black | Power off. |
| Yellow, fast flashing | Initial configuration and self-test. |
| Blue | Standby mode (not connecting to EV). |
| Blue / Yellow (alternating) | Charging with limited charging power (limitation via external power control) |
| Yellow | Ready to charge (connecting to EV). |
| Blue, slow flashing | Charging in progress. |
| Green | Charging process completed. |
| Yellow, slow flashing | Limited output power by active power control, firmware upgrade or log download. |
| Red, slow flashing | Refer to fault event. |
| Red | Failed self-test or general malfunction. |
Fault Events
| Status | Description | Action |
| Red, 1 Flash | High/under voltage protection | The EVSE will be auto-recovery once the voltage is normal. If not, please restart the EVSE or contact customer support. |
| Red, 2 Flashes | Residual Current Device (RCD) tripped | 1. Turn off the charger (open the circuit breaker) 2. disconnect the car 3. Check the charging cable and all other components for isolation damages. 4. If no isolation issues are visible, turn on the charger again by closing the circuit breaker. |
| Red, 3 Flashes | Ground does not correctly connect to the EVSE. | 1. Check if ground (PE) is well connected. 2. Ensure the wallbox runs Firmware version 5.1 or higher by using the AC MAX App. |
| Red, 4 Flashes | Over current protection. | Unplug the vehicle connector and plug it again. |
| Red, 5 Flashes | Over temperature protection. | Wait for recovery and check if any heat source around the EVSE. If yes, please try to remove the heat source. |
| Red, 6 Flashes | Input mis-wired. | Swap the Line (L) and Neutral (N). |
| Red, 7 Flashes | Control pilot signal error, Gun lock error/fault | Unplug the vehicle connector and plug it again. If not recovery, please contact customer support. |
Symbol Description
| Status | Description |
| Slow flashing | Slow flashing (period = 2 s, duty cycle = 50%) |
| Fast flashing | Fast flashing (period = 0.8 s, duty cycle = 50%) |
| 1 Flash | Timing diagram showing 1s, 1s, 4s, 1s intervals. |
| 2 Flashes | Timing diagram showing 1s, 1s, 1s, 1s, 4s, 1s, 1s, 1s, 1s intervals. |
3 or more Flashes refer to previous figures of time duration.
Troubleshooting
Contact Customer Support if the EVSE appears to malfunction or if the LED indicators display a fault event. DO NOT open the EVSE, touch or remove the circuit protective devices or any other component.
| Situation | Action |
| Indicator does not light | 1. Make sure the power input is connected correctly and the power is within operating range of the unit. 2. Power cycle the EVSE. 3. If the problem persists, contact customer support. |
| Indicator does not flash after plugging vehicle connector | 1. Check if the vehicle connector is fully inserted to EV 2. Check if the battery is full on EV 3. If the problem persists, contact customer support. |
| Indicator starts to flash in red while charging | 1. Wait until the temporary error is resolved and the EVSE returns to normal condition, typically less than 10 seconds. 2. Unplug the vehicle connector. 3. Power cycle the EVSE. 4. If the situation persists, contact customer support. |
| Indicator illuminates in red | 1. It might be a critical error (e.g. hardware fault). 2. Unplug the vehicle connector. 3. Power cycle the EVSE. 4. If the situation persists, contact customer support. |
Specifications
| Model | AC MAX Basic | ||
| Input | 3.7 kW / 11 kW | 7.4 kW / 22 kW | |
| Nominal Current | 16 A | 32 A | |
| Grid Connection | Single-phase electric power (L1, N, PE) | Three-phase electric power (L1, L2, L3, N, PE) | |
| All AC MAX BASIC models support both, single phase and three phase installations | |||
| AC Voltage | 230 V / 400 V | ||
| Frequency | 50 Hz / 60 Hz | ||
| Grounding systems | TN, TT, IT | ||
| Terminal | PCB terminal block | ||
| Protection | Over current, Under voltage, Over voltage, Over temperature, Surge protection, Short circuit, Ground fault | ||
| Standby Power | 3.6 W | ||
| Charging Output | Nominal Power | Single-phase: 3.7 kW Three-phase: 11 kW | Single-phase: 7.4 kW Three-phase: 22 kW |
| Nominal Current | 16 A per phase | 32 A per phase | |
| Connector Type | AC Type 2 Plug | AC Type 2 Plug AC Type 2 Socket AC Type 2S Socket | |
| Charging Voltage | 230 V / 400 V | ||
| Cable Length | 5 m (models with AC Type 2 Plug charging interface) | ||
| Protection | RCD Type A (AC 30 mA) RDC-DD (DC 6 mA) | ||
| Compliance | IEC 61851-1, IEC 62196-2, IEC61008-1, IEC 62955 | ||
| User Interface | Display | Status LED, 4 colors | |
| Authentication | Key switch | ||
| Charger Configuration | Maximum charging current selectable by 8-step hardware DIP switch | ||
| Network Interface | Bluetooth | ||
| Protocols and Applications | Configuration, control, monitoring and firmware update | ||
| RS485 | ModBus RTU for energy management | ||
| Protocols and Applications | |||
| Mechanical Properties | Ingress Protection (IEC 60529) | IP55 | |
| Impact Protection (IEC 62262) | IK09 | ||
| Cooling | Natural convection | ||
| Dimensions* (W x H x D) | 218 x 371 x 167 mm ( 8.6 x 14.6 x 6.6 inch) | ||
| Weight* | 6.0 kg (13.3 lbs), including charging cable | ||
| Environmental Conditions | Operating Temperature Range | - 30 °C to + 50 °C (- 22 °F to + 122 °F) | |
| Storage Temperature Range | - 40 °C to + 80 °C (- 40 °F to + 176 °F) | ||
| Humidity | < 95 % relative humidity, non-condensing | ||
| Altitude | Up to 2,000 m (6,500 ft.) | ||
| Compliance | EU Low Voltage Directive | IEC 61851-1, IEC 62479 | |
| EU EMI Directive | EN 61000-3-11 / -12, IEC 61851-21-2 | ||
Cleaning
Regular cleaning of EVSE is required while standby state. Using a soft damp cloth with clear water is highly recommended and make sure no water enters the vehicle connector.
Warranty
Customer service can provide more information on the terms of warranty. However, the following cases are not covered by the warranty:
- Defects or damage caused by not using the product as specified in the Installation and Operation Manual.
- Costs and damage caused by repair work which is not provided by DELTA approved authorized specialist or electrician.
Disposal
The EVSE is an electronic device and must be disposed of separately from normal house wastes. Please have it disposed in compliance with the waste disposal and recycle local regulation.
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FR
Tout les papiers se trient et se recyclent, y compris tous les documents fournis avec cet appareil.
