eProWallbox Installation Manual - Annex

1. INTRODUCTION

The following features on eProWallbox can be configured via Bluetooth:

• DPM:
  • DPM enabling
  • DPM Pmax
• DPM 2.0:
  • Electrical Installation
  • Configuration
  • Transformer ratio KI
  • DPM Type selection
• Load Unbalance:
  • Load unbalance enabling
  • Load unbalance current

2. DPM 2.0 INSTALLATION

Important: During the installation, always refer to the meter installation manual included in the package.

1. Place the Power Meter provided after the main utility meter and before the split power.
2. For the three-phase or single-phase electrical connection, refer to the dedicated meter installation manual included in the Power Meter package.
3. Feed the Modbus communication cables through the wallbox box sheath. Suggested cable: STP class 5E, 0.5 mm² section.
4. If included, connect the Current Transformers as indicated in the meter installation manual, paying attention to the direction indicated on the sensor. The neutral cable must not be drawn through the clamp.
5. Use the following order for connecting the communication cables from the PowerMeter to the Wallbox. Starting from left on the wallbox RS485 output port CN12:

EM330:

• Port CN12 (Wallbox): GND, A-, B+, T
• PowerMeter Connections: GND, A-, B+, T

EM111:

• Port CN12 (Wallbox): GND, B+, A-, T
• PowerMeter Connections: GND, B+, A-, T

3. PROCEDURE

The preliminary steps for the next operations are the following:

1. Download and install the application nRF Connect on your smartphone. It is suggested to use an Android operating system.
2. Open nRF Connect and set a filter (e.g., "ePro") in order to see only eProWallboxes in the homepage.
3. Select 'Scan' on the top right corner to identify the eProWallbox to be connected via Bluetooth through its Bluetooth name.
4. Once connected to the desired eProWallbox, select 'Unknown Services' to begin with the configuration.

(Visual description of the nRF Connect app screens showing the scanning and connection process)

4. Unknown Services Configuration

The 'Unknown Services' section contains all the parameters that can be written and read through Bluetooth.

(Visual description of the nRF Connect app screen showing characteristics and properties)

The UUID is associated with a specific functionality.

By clicking on the down arrow (⬇️), the specifics of the parameters will be displayed.

By clicking on the up arrow (⬆️), a new command can be set through Bluetooth.

3.1 Energy meter Configuration

1. When powering up the Power Meter for the first time, tap and hold the central display button for 1.5 seconds. The display will show the page where to insert the password, initially set to 0000. You can edit each value using the left or right display button and confirm each time by tapping and holding the central display button.
2. For the three-phase Power Meter only, the system mode is 3Pn.
3. To configure the Power Meter, tap and hold the left display button and set:
   a. Modbus address: 1
   b. BaudRate: 38.4 kbps
   c. Parity bit: Even
4. Set the model of Power Meter installed on the nRF Connect app:
   Parameter: DPM_TYPE
   This field allows to select the Power Meter model installed.
   UUID: f0f924f8-34ce-4f1d-9791-b1b19ff3ffe4
   TYPE: Uint8, select UINT8 on the app
   VALUE:
   00 → FINDER 3ph (212)
   01 → FINDER 1ph (210)
   02 → GAVAZZI EM330DINAV53HS1X
   03 → GAVAZZI EM111DINAV51XS1X
5. If installed, set the Transformer Ratio KI on the nRF Connect app:
   Parameter: TRANSFORMER_RATIO_KI
   This value allows to set the Current Transformer ratio according to the installed sensors. The value on the app is expressed in Hexadecimal.
   UUID: 0c8d04fc-247c-4119-ab10-77ad3779310c
   TYPE: Uint32, select UINT32 on the app
   VALUE: Set the Transformer Ratio KI according to the values printed on the sensor.
   E.g. 100/5 → KI = 20 (Hex value → 14)
   150/5 → KI = 30 (Hex value → 1E)

3.2 DPM

a. DPM PMAX

Parameter: DPM_PMAX
This field contains the contractual power expressed in Watt.
UUID: b4bc4914-1381-4294-acb0-776947becb9d
TYPE: Uint32, select UINT32 on the app
VALUE: min value 0, max value 70000

(Visual description of the nRF Connect app screens for setting DPM PMAX)

1. Identify the UUID of the DPM Pmax parameter.
2. Click on the up arrow (⬆️) next to the Unknown characteristic.
3. Select UINT32.
4. In the "New value" field, insert the contractual power value, expressed in Watt, from 0 to 70000. Then click SEND.
5. The new value will appear on the main page, expressed in bytes.

b. DPM ENABLING

Parameter: DPM_ENABLED
This feature enables the DPM functionality.
UUID: 9b5732b1-b557-40f7-ab72-fb00a3696132
TYPE: Boolean, select BYTE on the app
VALUE: 01 → TRUE, enabled; 00 → FALSE, disabled

C. At the end of the process, to make the changes effective, restart the wallbox.

(Visual description of the nRF Connect app screens for setting DPM ENABLING)

1. Identify the UUID of the DPM Enabling parameter.
2. Click on the up arrow (⬆️) next to the Unknown characteristic.
3. Select BYTE.
4. In the "New value" field, insert: 01 to ENABLE, 00 to DISABLE. Then click SEND.
5. The new value will appear on the main page.

3.3 Load Unbalance

a. Load unbalance enabling

Parameter: LOAD_UNBALANCE_ENABLED
This function enables the load unbalance settings.
UUID: aa29e099-f9dc-40a4-8612-afbb78c612df
TYPE: boolean, select BYTE on the app
VALUE: 00 → FALSE, disabled; 01 → TRUE, enabled

b. Load unbalance current

Parameter: LOAD_UNBALANCE_CURRENT
This value defines the max allowable phases current unbalance expressed in mA.
UUID: f9217d22-b703-4a2a-a565-38662afc1a9c
TYPE: Uint32, select UINT32 on the app
VALUE: 0 → Min value; 32000 → Max value, in mA