Ratio io5 User manual

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io5Installation Guide

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Thank you for
choosing the io5
Ratio EV Charging
Unit 1 Target Park
Shawbank Road
Lakeside
Redditch
Worcestershire
United Kingdom
B98 8YN
[phone]
[e-mail]
[e-mail]
[e-mail]
ratioev.uk

Preface | 3
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About this document
Preface
This manual contains technical descriptions and instructions for the following product:
Category of product Charger for Electric Vehicles
Product name io5
Art. No. 388xx
Hardware version io5
Serial number:
Bluetooth Password:
Write down the serial number of your product in the table above for future reference.
This manual contains all instructions and safety information for installation, commissioning,
use and maintenance of the product.
This manual is intended for:
• the qualified electrician who installs the product;
• the end-user who uses the charger;
• the product owner who maintains the product.
Copyright
The content of this manual is protected by copyright and other intellectual property laws.
The content of this manual may only be copied, modified, reproduce or translated with
express written permission from the manufacturer. This manual may only be published,
transmitted, displayed or made available to a third party with express written permission from
the manufacturer.
Disclaimer of liability
Ratio EV Charging cannot be held responsible for personal injury, damage to the product
or property damage caused by incorrect use, foreseeable misuse or failure to follow the
instructions in this manual. This also applies to unauthorized modifications of the product and
the use of non-approved spare parts, tools or accessories.
Ratio EV Charging reserves the right to modify this manual without notification beforehand.
Category of product Charger for Electric VehiclesCategory of product Charger for Electric Vehicles

Table of contents | 4
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Table of contents
1. Safety 5
1.1. Symbols and labels 5
1.1.1. Safety warnings 5
1.1.2. Fuel Identifier 5
1.1.3. Notices 6
1.2. Intended use 6
1.3. Reasonably foreseeable misuse 6
1.4. Qualification of personnel 7
1.5. Personal Protective Equipment 7
1.6. Safety Precautions 7
2. Product description 9
2.1. Charger Components 10
2.2. Sensor Box components (Optional for Smart charger) 11
3. Technical data 12
3.1. Product Labelling/Marking 13
4. Transport and Storage 13
4.1. Transport 13
4.2. Storage 13
5. Installation 13
5.1. Preparation 13
5.1.1. Check the contents 14
5.1.2. Required tools 15
5.1.3. Required wiring and electrical protection 15
5.2. Install the power cable in the distribution board 16
5.3. Install the Sensor Box in the consumer unit 16
5.4. Charger Installation/Mounting 19
5.5. Connect the power cable to the charger 20
5.6. Ethernet cable installation 24
5.7. Data cable installation 25
5.8 Install a data cable between two chargers for Power Sharing 27
5.8.1. In the Main Controller 27
5.8.2. In the Sub charger 28
5.9. Final installation checks 30
5.10. Finish the installation 31
6. Commissioning 32
6.1. The unique password of the charger 32
6.2. Download the Ratio EV Charging App 32
6.3. Initial configuration of the charger 32
6.4. Overview of the Ratio EV Charging App 34
6.5. Connect the charger to the Ratio EV Charging App 34
6.6. Testing solar charging functionality 35
6.7. Updating the charger 35
7. Using the io5 36
7.1. Start charging 36
7.2. During charging 37
7.2.1. Charging paused 37
7.3. Stop charging 37
8. Settings 37
9. Maintenance 39
10. Troubleshooting 40
11. Service 42
12. Data protection 42
13. Warranty 42
14. Disposal 42
15. EC Declaration of Conformity 43
1.2. Intended use 61.2. Intended use 6
4. Transport and Storage 134. Transport and Storage 13
5.3. Install the Sensor Box in the consumer unit 165.3. Install the Sensor Box in the consumer unit 16
5.9. Final installation checks 305.9. Final installation checks 30
6.5. Connect the charger to the Ratio EV Charging App 346.5. Connect the charger to the Ratio EV Charging App 34
1.4. Qualification of personnel 71.4. Qualification of personnel 7
4.2. Storage 134.2. Storage 13
5.5. Connect the power cable to the charger 205.5. Connect the power cable to the charger 20
6.7. Updating the charger 356.7. Updating the charger 35
7.2.1. Charging paused 377.2.1. Charging paused 37
10. Troubleshooting 4010. Troubleshooting 40
14. Disposal 4214. Disposal 42
1.1.1. Safety warnings 51.1.1. Safety warnings 5
1.1.2. Fuel Identifier 51.1.2. Fuel Identifier 5
3. Technical data 123. Technical data 12
5.1.3. Required wiring and electrical protection 155.1.3. Required wiring and electrical protection 15
5.8.1. In the Main Controller 275.8.1. In the Main Controller 27
6.3. Initial configuration of the charger 326.3. Initial configuration of the charger 32
1.1.3. Notices 61.1.3. Notices 6
3.1. Product Labelling/Marking 133.1. Product Labelling/Marking 13
5.2. Install the power cable in the distribution board 165.2. Install the power cable in the distribution board 16
5.8.2. In the Sub charger 285.8.2. In the Sub charger 28
6.4. Overview of the Ratio EV Charging App 346.4. Overview of the Ratio EV Charging App 34
1.3. Reasonably foreseeable misuse 61.3. Reasonably foreseeable misuse 6
4.1. Transport 134.1. Transport 13
5.4. Charger Installation/Mounting 195.4. Charger Installation/Mounting 19
5.10. Finish the installation 315.10. Finish the installation 31
6.6. Testing solar charging functionality 356.6. Testing solar charging functionality 35
7.2. During charging 377.2. During charging 37
9. Maintenance 399. Maintenance 39
11. Service 4211. Service 42
1.5. Personal Protective Equipment 71.5. Personal Protective Equipment 7
5. Installation 135. Installation 13
5.6. Ethernet cable installation 245.6. Ethernet cable installation 24
7. Using the io5 367. Using the io5 36
7.3. Stop charging 377.3. Stop charging 37
12. Data protection 4212. Data protection 42
15. EC Declaration of Conformity 4315. EC Declaration of Conformity 43
13. Warranty 4213. Warranty 42
1.6. Safety Precautions 71.6. Safety Precautions 7
5.1. Preparation 135.1. Preparation 13
5.7. Data cable installation 255.7. Data cable installation 25
6. Commissioning 326. Commissioning 32
7.1. Start charging 367.1. Start charging 36
8. Settings 378. Settings 37
1. Safety 51. Safety 5
2. Product description 92. Product description 9
2.1. Charger Components 102.1. Charger Components 10
5.1.1. Check the contents 145.1.1. Check the contents 14
5.8 Install a data cable between two chargers for Power Sharing 275.8 Install a data cable between two chargers for Power Sharing 27
6.1. The unique password of the charger 326.1. The unique password of the charger 32
1.1. Symbols and labels 51.1. Symbols and labels 5
2.2. Sensor Box components (Optional for Smart charger) 112.2. Sensor Box components (Optional for Smart charger) 11
5.1.2. Required tools 155.1.2. Required tools 15
6.2. Download the Ratio EV Charging App 326.2. Download the Ratio EV Charging App 32

Safety | 5
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Please make sure the instructions have been fully read and understood before commencing
the installation or use of the product. Failure to follow the instructions from this manual can put
people, surroundings, the environment and product at risk. Store this manual securely for future
reference.
Always comply with the information, such as labels and the nameplate, attached directly to
the product and keep the information in a legible condition.
Always comply with any applicable laws and regulations that have not been accounted for in
this manual for example IET regulations.
1.1.1. Safety warnings
This manual contains safety warnings that may result in injury if ignored. Each safety
warning is indicated with a safety identifier. The identifier corresponds with the level of risk of
the described hazardous situation, see the table below.
Safety warnings at the start of a section apply to the entire section.
Safety warnings that refer to a particular sentence or procedure step are embedded in the
running text.
Medium Could result in death or serious injury
Low Could result in minor or moderate injury
1.1. Symbols and labels
Safety Risk of injury Result when instruction is ignored or not followed
Identifier correctly
1. Safety
1.1.2. Fuel Identifier
The Fuel Identifier is there to inform the user the fuel type used (electricity) by this charger and
to instruct which end of the cable is to be plugged into the socket or vehicle inlet.
For Socket versions of io5 - The Fuel Identifier symbol is located at the front of the charger
by the socket. The socket on the io5 receives the Plug end of charging cables which should be
indicated with a smaller similar graphical illustration. This will be either silver or white in colour.
For Tethered versions of io5 - The Fuel Identifier label on this version will be located on the
vehicle connector.

Safety | 6
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The Ratio io5 Charger is both a non-restricted and restricted charger intended to charge electric
vehicles using power from solar panels and household power grid. The product can
be operated indoors and outdoors.
The product must only be operated within its performance limits and under the permitted
ambient conditions, as stated in the technical specifications in chapter 3.
The product can be mounted flush to a wall or to a separately available pole.
Safe use of the product is only guaranteed if it is used as intended.
The following is considered foreseeable misuse:
• Use in an environment that varies from or exceeds the given environmental conditions.
• Use that varies from or exceeds the given operating conditions.
• Failure to comply with the instructions in this manual.
• Failure to eliminate faults, malfunctions or defects of the product that impose safety risks.
1.2. Intended use
1.3. Reasonably foreseeable misuse
1.1.3. Notices
Messages that are not hazard-related are indicated with the safety identifier NOTICE. These
messages do not have a safety alert symbol.
Could result in damage to the product when instruction is ignored or not
followed correctly.
Note Additional information or emphasis on an instruction.
Signal word Meaning
Charging cable - Charging cables will have a small white/silver Fuel Identifier on the plug side to
indicate this is compatible with the socket, and a black Fuel Identifier on the vehicle connector
to specify this end is to be plugged into the vehicle inlet.
or
Untethered Tethered Charging Cable
or
or
Plug
(for Socket)
Vehicle
Connector
C
C
(for Socket)

Safety | 7
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Wear the appropriate Personal Protective Equipment (PPE) according to the
manual of any tools used during installation of the charger.
Wear insulating gloves when installing wires and touching electrical components to avoid
damaging the product by static discharge.
Only authorised electricians are allowed to perform installation and maintenance of the
product. They must meet the below stated criteria:
• are of legal age.
• are familiar and abide by the safety instructions and sections of this manual related to
installation and maintenance of the product.
• are familiar with and abide by the applicable local, national and international laws and
regulations.
• are able to recognise the possible dangers of the product and take the necessary
measures to protect persons and property.
• have received adequate training in the safe installation and maintenance of this product.
• hold the relevant qualifications.
• Failure to carry out the inspections and maintenance operations as described in this
manual.
• Unauthorised removal or modification of parts or safety devices of the product.
• Use of spare parts or accessories that have not been approved by the manufacturer.
• Operation in a flammable and/or explosive environment.
• Operation in closed-off or poorly ventilated rooms.
Despite the safe design and construction of the product and the prescribed protective
measures, the product possesses residual risks. This manual provides safety messages to
indicate these risks. The formatting and appearance of safety messages that are dedicated to
a particular section or sentence is explained in chapter 1.1.
Read all the safety warnings and instructions before using the product. Failure to follow the
warnings and the instructions may result in electric shock, fire and/or serious injury.
1.5. Personal Protective Equipment
1.6. Safety precautions
1.4. Qualification of personnel
Wear the appropriate Personal Protective Equipment (PPE) according to the
• Do not put fingers into the electric vehicle connector.
• Do not use this product if the flexible power cord or EV cable are frayed, have broken
insulation, or show any other signs of damage.

Safety | 8
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• Ensure the supply cable of the product is positioned so it will not be stepped on,
tripped over, or otherwise subjected to damage or stress.
• There are no user serviceable parts inside. Refer to the Customer Support section in this
manual for service information. Do not attempt to repair or service the product yourself.
• Do not operate this product if it or the supply cable or housing is visibly damaged. Isolate the
supply in the electrical cabinet and contact your Service Representative for service
immediately. Refer to the Customer Support section in the manual for information on the
Service Representative in your area.
• Only use this product to charge electric vehicles equipped with a conductive charge
port. See the vehicle owner’s handbook to determine the vehicle is equipped with a
conductive charge port.
• Use of any adaptors is not allowed with this product.
• Only use certified Type 2 charging cables with this product.
• Cord extension sets are not allowed to be used.
• Do not drop the product and avoid impacts.
• Do not store the product in an environment that exceeds the ambient conditions stated
in this manual.
• Do not expose the internal components of the product to moisture.
• Do not immerse the product in water or any other liquid.
• Do not use the product if the enclosure or EV connector are broken, cracked, open, or
show any other indication of damage.
• The electrical installation must be isolated during the entire installation period.
• Improper connection of equipment-grounding conductor can result in a risk of electric
shock. Check with a qualified electrician or serviceman if you doubt whether the product
is properly grounded.
• Do not use this product if it not functioning according to the instructions in this manual.
Seek advice from Ratio, your vendor, or a qualified electrician or service agent.
• Do not attempt to remove the charging plug while a charging session is active.
• Children should not be allowed to use this product. Do not allow children to play near the
product. Children should be supervised when using this device around them.
• The installation must be conducted by a qualified electrician in line with local and national
legislation and IET regulation.
• Open PEN fault protection is incorporated into single phase io5 charger variants.
• For three-phase io5 charger variants open PEN fault protection is not integral to the charger. A
third party open PEN device or an earth electrode should be installed as per IET regulations.

Product description | 9
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2. Product description
The io5 is a Mode 3 charger for charging electric vehicles (EVs) which complies with the
IEC61851 series of standards.
The io5 is equipped with several features to optimise power consumption and charging
performance.
Dynamic Load balancing
The product uses a Sensor Box with Current Transformer(s) (CT) to measure the live power
consumption of the power grid per phase and uses that information to manage the power
output to the EV. When more electrical appliances are used, the power output to the EV is
reduced to avoid overloading the local power grid.
Power Sharing
If more than one charger has been purchased, they can be interconnected with a data
cable and use the integrated Power Sharing feature to equally distribute the available power
across the charge points using the data from the Sensor Box.
The Sensor Box uses up to three CT clamps, one for each phase of the main grid, to measure
the current flow of the main grid. The Sensor Box is also compatible with solar panel
installations and can measure the direction of the current.
One charger is connected to the Sensor Box with a data cable. This charger acts as the Main
Controller (MAIN), and manages the power for up to three Sub Chargers (SUB1, SUB2 and
SUB3).
It is also possible to use Power Sharing without the Sensor Box. The charger will function
without Dynamic Load Balancing, but the chargers must still be connected to each other with a
data cable and set in Basic mode.
Note: Pure Solar mode is not compatible with Power Sharing.
Over the air (OTA) updates
The io5 charger is equipped with the technology to receive over the air updates, enabling your
charger to receive the available updates over the internet.
Ratio EV Charging App
The charger can be controlled with the Ratio EV Charging App.
The App is available in the Google Play store and Apple store.
Multiple users and multiple cars
Different users and multiple cars can be added to view the charging sessions of each
individual online. A maximum of five users or cars can be created.

Product description | 10
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Charge modes
The charger has four available charge modes:
Basic The charger charges the EV using a set maximum current in Amps
(Maximum charging current). - no Load Balancing
Smart The charger only charges the EV when the available current is above
the minimum set current in Amps (Minimum charging current) and
below the maximum current that is still available on the main grid. *
SmartSolar The charger only charges the EV when the available current is above
the minimum set current in Amps (SmartSolar minimal charging current)
and below the maximum current that is still available on the main grid.
If the charger is charging the EV and there is still net current
generation, the charger uses this surplus of energy to charge the car in
addition to the minimum set current. *
PureSolar The charger only charges the EV when there is a net current generation
(e.g. from solar panels), that is above the minimum set current in Amps
(PureSolar minimal charging current). *
* Charging at a maximum current while protecting the building from over current loading
with Dynamic Load Balancing. While charging at home or commercial facility, the charging
current adapts to the maximum allowed consumption in the building.
Note: PureSolar mode is not compatible with Power Sharing. If you set the charge mode
to PureSolar, Power Sharing will be disabled.
Power LED
4 Fault LED
5Charge LED
1 Front cover bezel
2 Charge socket (not on
tethered versions)
2.1. Charger Components
10 Ratio io5 Charger Manual
Charge modes
The charger has four available charge modes:
Basic The charger charges the EV using a set maximum power in Amps
(Maximum charging current). - no Load Balancing
Smart The charger only charges the EV when the available power is above
the minimum set power in Amps (Minimum charging current) and
below the maximum power that is still available on the main grid. *
SmartSolar The charger only charges the EV when the available power is above
the minimum set power in Amps (SmartSolar minimal charging
current) and below the maximum power that is still available on the
main grid. If the charger is charging the EV and there is still net
power generation, the charger uses this surplus of energy to charge
the car in addition to the minimum set power. *
PureSolar The charger only charges the EV when there is a net power
generation (e.g. from solar panels), that is above the minimum set
power in Amps (PureSolar minimal charging current). *
* Charging at a maximum current while protecting the building from overcurrent loading
with Dynamic Load Balancing. While charging at home or an office building the charging
current adapts to the maximum allowed consumption in the building.
Note: PureSolar mode is not compatible with Power Sharing . If you set the charge mode to
PureSolar, Power Sharing will be disabled.
2 . 1 . Charger components
Power
Fault
Charge
1
2
3
4
5
1 Front cover ring
2 Charge socket
3 P o w e r L E D
4 Fault LED
5 Charge LED