CHARGE AMPS Amp Guard 2 Stores Instruction Manual

: June 6, 2024
: CHARGE AMPS

Charge Amps Amp Guard
Installation Manual
Installation may only be carried out by authorized personnel who follows basic safety precautions for
safe and correct installation according to local, regional, and national installation regulations.

Amp Guard

Amp Guard is a smart power monitor which enables dynamic load balancing for Charge Amps chargers. Amp Guard logs the total power consumption to the Charge Amps cloud service https://my.charge.space/ which automatically reduces or increases the available power to the chargers, enabling charging at maximum capacity without worry about blowing fuses.
Together with current-generating equipment such as solar cells or wind turbines, Amp Guard operates as a fully featured, bi-directional Smart meter. Amp Guard needs an internet connection to function properly.

Safety Precautions

This installation manual contains important instructions on how to install the product. In addition to the instructions in this manual, basic safety precautions, including all applicable local, regional, and national laws and regulations, must be complied with when installing, repairing, and maintaining the product.

Technical Specification

Measuring range (current)	0–100 A (Home), 0–400 A (Public)
Measuring range (voltage)	0–390 V
Network	LAN, Wi-Fi
Power supply	230VAC/400VAC 50/60Hz

(via the voltage/power supply terminal)
Installation| DIN rail (6 modules) or standalone
Dimensions (mm)| 108 × 97 × 57

Contents of the Package

One Amp Guard (Home or Public)
Three current transformers (blue 0–100 A for the Home version and black 0–400
A for the Public version)
One Amp Guard installation manual (this publication)

Model Overview

1	LAN contact
2	Terminal contacts to connect the current sensors
3	Terminal contact for powering the Amp Guard. And also voltage supply if all

Preparations (Read and Prepare Before Installation)

Customer Needs to Provide LAN or WiFi

Amp Guard must be connected to the internet to supply data to the load balancer which in turn communicates with the charging station(s). The customer must provide an internet connection via a network cable (LAN) or WiFi (2.4 Ghz). LAN connection, if available, is preferred for a more secure connection to the internet. Normally, no firewalls changes are needed. The network needs to have DHCP activated to ensure an IP address is automatically assigned to Amp Guard. If choosing to use WiFi, please provide an SSID and WiFi password for the selected network to the installer. The WiFi password needs to contain maximum 30 ASCII characters.

For WiFi networks not meeting these requirements, we recommend specifying a separate WiFi SSID for use by the Amp Guard or, alternatively, change the details of the existing network.

Installer Needs a Charge Amps Partner Account

A Charge Amps partner account is needed to complete the installation (one partner account per installation company). To gain access to such an account:

Create a normal user account on https://my.charge.space/
Contact Charge Amps (email support@charge-amps.com) and inform of your company name and the e-mail address used when creating the account.

Charge Amps will change it to a partner account and confirm once it is done.

Equipment Provided by the Installer

Partner account on https://my.charge.space
Mobile phone, tablet, or computer with internet connection
Small screwdriver

Installation Instructions

Electrical Installation

For one-phase systems, L2 and L3 shall not be used.
In order to monitor all power usage, install the Amp Guard directly after the main switch of the building.

Connect the Current Sensors

Amp Guard comes with three current sensors (one for each phase) which are either blue (100 A) for Home or black (400 A) for Public. They are marked to show the direction in which they need to be mounted. The arrow must point in the current direction, in towards the house:

CHARGE AMPS Amp Guard 2 Stores - Connect the Current

IMPORTANT: It is extremely important for the sensors to be connected to the correct phase, the clamps to be in the right direction and connected the correct way into the Amp Guard terminals. The sensors must be positioned correctly around the main power cables according to the indicators on the clamps.

Clamp the current sensor around the incoming phase, pay attention to the current direction.
Connect each current sensor to the corresponding terminal contact:
| Right
---|---
Home| Red| White
Public| White| Black

CHARGE AMPS Amp Guard 2 Stores -Repeat

Repeat for all three phases

Connect the Main

IMPORTANT: Each phase must be connected to the right terminal connector position for current measurement and load balancing to function correctly.
The mains are used to power the Amp Guard and are used to measure voltage. The inputs for power supply are located on the bottom right and shall be connected in the right order according to N, L3, L2, L1 as shown in the illustration. For installations which do not have any generating producing equipment, such as solar panels or wind power, it is sufficient to connect N and L1.
To power the unit, connect all three phases and neutral conductor to the connector on the right side of the unit with N321 (right side in picture). If not all three phases are to be connected, the Amp Guard is only energized by L1. NB! The sensors must be connected to the correct phase and placed according to the drawing when measuring current. See arrows showing current direction for Amp Guard Home and Amp Guard Public in the images below.

Figure 6 Power supply connected to Amp Guard

Final Result of the Electrical Installation CHARGE AMPS Amp Guard 2 Stores -
Figure 7

Figure 7. Overview of the installation of Amp Guard Home

CHARGE AMPS Amp Guard 2 Stores - Figure 8

Figure 8. Overview of the installation of Amp Guard Public

Network Installation

LAN Installation

Connect a (Cat 6) network cable to the ethernet port (LAN) on the rear side of the Amp Guard:

Figure 9 Ethernet/LAN port

WiFi Installation

N.B. Only 2,4GHz Wi-Fi is supported. Risk of malfunction if 5GHz and 2,4GHz has the same SSID.

Before starting, make sure you have the SSID and password for the WiFi network you intend to use.
Go to mobile settings > WiFi and select the WiFi network “Amp Guard_****” ( = Specific to Amp Guard’s serial number).
Connect using the password that is specific to your Amp Guard.
Enter the following address from a web browser: http://192.168.251.1
Enter the SSID and Password in the form on the configuration page and click Submit.

Configuration in the Cloud

For Amp Guard to work correctly, it is necessary to set the parameters in a so called load balancer group via the Charge Amps cloud service https://my.charge.space/.

This is done via a partner account on the Charge Amps cloud service and must be carried out by the installer. For even more detailed information, see the Load Balancing Configuration manual.

Importing Amp Guard

Log in as a partner on https://my.charge.space/partner.
Select “Measurement Device” from the menu and click “Add”:
Enter the serial number, password and the organisation where the Amp Guard will be located.
Click “Search” to find the newly imported Amp Guard.
Click the serial number to go to the information page.
Click “User” and select user as the owner of the Amp Guard. If the user is not selectable, ask the customer to create a user account.

Add Amp Guard to a Load Balancer Group for Chargers

Log in as a partner on https://my.charge.space/partner.
Select “Load balancer” from the menu and create a new group or select an existing one.
Edit the group (the load balancer group must be deactivated to do this).
Select the newly imported Amp Guard and enter the correct values for the installation, see information below.
Click Save and activate the load balancer group.

Maximum Current Per Phase – Settings

A higher total current per phase is permitted when an Amp Guard is installed, since the Load Balancer automatically reduces the charging output if required. There is, however, always a risk that Amp Guard will stop sending data (network problems, current switched off, etc.). In that case, the load balancer does not use the maximum current that the system can handle, since other users may also be active on it.

Example: CHARGE AMPS Amp Guard 2 Stores - Example

A distribution board dimensioned for 25 A is used. There are other users on the system who are expected to use up to 15 A. A suggested setting would be as follows:

Maximum current per phase (standalone): 10 A (allows other electricity consumers to be active).
Maximum current per phase (Amp Guard): 25 A (when other electricity consumers can be measured, Amp Guard can compensate for them).

Rights

The information in this document has been checked for accuracy. Charge Amps AB reserves the right to make technical changes and changes to the contents of the document without prior notice. Charge Amps AB can therefore not guarantee that all of the contents of this particular document are accurate, up-to-date, and free from printing and proofreading errors. Moreover, Charge Amps AB cannot be held liable for any mistakes, near-misses, injuries/damage or incidents – direct or indirect – that can be linked to the use of the regulations or products in this document.

Charge Amps AB reserves all rights to this document, as well as the information and illustrations therein. It is strictly forbidden to – in whole or in part – copy, adapt or
translate the information without prior written permission from Charge Amps AB.
© Copyright 2021 Charge Amps AB. All rights reserved.

© 2021 Charge Amps AB
Installation manual for Amp Guard
Doc. Nr: 130050
Rev 01| Address:
Charge Amps AB
Frösundaleden 2B
SE-169 75 Solna
Sweden| Contact:
+46 (0)8 55 11 2000
info@charge-amps.com
www.chargeamps.com| Org. No. 556897-7192
Registered office: Solna
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