NIBE 057188 EME 20 Heat Pump-Inverter Communication Module Installation Guide
- June 6, 2024
- NIBE
Table of Contents
NIBE 057188 EME 20 Heat Pump-Inverter Communication Module
SAFETY INFORMATION
This manual describes installationand service procedures for implementation by
specialists.
The manual must be left with the customer.
This appliance can be used by children aged from 8 years and above and persons
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
This is an original manual. It may not be translated without the approval of
NIBE.
Rights to make any design or technical modifications are reserved.
©NIBE 2021.
SYMBOLS
General
EME 20 is used to enable communication and control between the inverter for
solar cells and heat pump/indoor module/control module.
This manual describes installation and service procedures for implementation
by specialists.
The manual must be left with the customer.
COMPATIBLE PRODUCTS
- S1155
- VVM S320
- S1255
- VVM S325
- SMO S40
CONTENTS
- 1 x Communications module
- 2 x Mounting screws
COMPONENT POSITIONS
ELECTRICAL COMPONENTS
X1 Terminal block, power supply
AA23 Communication board
AA23-S2 DIP switch
Outline diagram
OUTLINE DIAGRAM, CONNECTION EME 20
Electrical connection
CONNECTING COMMUNICATION
NOTE
All electrical connections must be carried out by an authorised electrician.
Electrical installation and wiring must be carried out in accordance with the
stipulations in force.
The heat pump must not be powered when installing EME 20.
- To prevent interference, sensor cables to external connections must not be laid close to high voltage cables.
- The minimum area of communication and sensor cables to external connections must be 0.5 mm² up to 50 m, for example EKKX, LiYY or equivalent.
- EME 20 restarts after a power failure.
CABLE LOCK
Use a suitable tool to release/lock cables in terminal blocks.
CONNECTING TO INVERTER
RS-485 – COMMUNICATION
Connect the cables to the converter according to the diagram below.
NOTE
The front cover on the inverter must not be opened. Connection must take place
via the intended communication input under the inverter.
Use the enclosed terminal block supplied with the inverter. Note how the
cables are connected in the terminal block!
PVI 10/20
| Connection | F unctio n |
|---|---|
| 1 | RS485 + (B) |
| 2 | RS485 – (A) |
| 3 | Not used |
| 4 | Not used |
| 5 | RS485 + (B) |
| 6 | RS485 – (A) |
PVI 30
| Connection | Function |
|---|---|
| 1 | RS485 + (B) |
| 2 | RS485 + (B) |
| 3 | RS485 – (A) |
| 4 | RS485 – (A) |
| 5 | Not used |
| 6 | Not used |
Modbus RTU
Settings for other inverters supporting SunSpec with Modbus RTU.
Baudrate: 9,600
Data bits: 8
Stop bits: 1
Parity: None
CONNECTION
S1155/S1255
This accessory contains a communication board (AA23) that must be connected
directly to the compatible main product on the PCB (terminal block AA2-X30)).
The terminal block (AA23-X1:9-10) on the communication board must be connected
to the inverter.
If several accessories are to be connected, or are already connected, the
following cards must be connected in series with the previous card.
SMO S40
This accessory contains a communication board (AA23) that must be connected
directly to the compatible control module on the joint board (terminal block
AA100-X9)).
The terminal block (AA23-X1:9-10) on the communication board must be connected
to the inverter.
If several accessories are to be connected, or are already connected, the following cards must be connected in series with the previous card.
Connecting multiple inverters to one EME 20
Twelve inverters of the same make can be connected in parallel to one EME 20.
Connecting the energy meter
To connect the energy meter (optional), see the Installer Manual for the main
product.
DIP SWITCH
The DIP switch (S2) on the communication board (AA23).
Default OFF.
Program settings
MENU 7.2.1 – ADD/REMOVE ACCESSORIES
Here, you state which accessories are installed for the compatible product.
To identify connected accessories automatically, select “Search for
accessories”. It is also possible to select accessories manually from the
list.
MENU 4.2.2 – SOLAR ELECTRICITY
AFFECT ROOM TEMP HEATING
Alternative: on/off
AFFECT HOT WATER
Alternative: on/off
AFFECT POOL
Alternative: on/off
ENERGY METER
Alternative: BE6, BE7, BE8
PRIORITISE DOMESTIC ELECTRICITY
Alternative: yes/no.
This is where you set which part of your installation (room temperature, hot
water temperature, pool temperature) is to benefit from the solar electricity
surplus.
When the solar panels are producing more electricity than the compatible
product requires, the temperature in the property is adjusted and/or the
temperature of the hot water or the pool is increased.
In the compatible product, you can select whether you want domestic
electricity to be prioritised over room temperature and hot water, provided
that this is equipped with an external energy meter.
TIP
When electricity production is active, you will be notified of this in the
drop-down menu and on the solar home screen.
MENU 7.2.19 – PULSE ENERGY METER
ACTIVATED
Setting range: Off/On
SET MODE
Setting range: Energy per pulse / Pulses per kWh
ENERGY PER PULSE
Setting range: 0 – 10000 Wh
PULSES PER KWH
Setting range: 1 – 10000
One energy meter can be connected to EME 20.
Energy per pulse: Here you set the amount of energy to which each pulse will
correspond.
Pulses per kWh: Here, you set the number of pulses per kWh that are sent to EME 20.
CONTROL
EME 20 automatically manages what the solar energy will be used for, according
to the choices made in menu 4.2.2.
In the Information menu 3.1.11.8, you can see what the solar energy is being used for at the moment, as well as other information such as the average power and produced power.
TECHNICAL SPECIFICATIONS
EME 20| |
---|---|---
External; dimen- sions (LxWxH)| mm| 81x81x28
Enclosure class| | IP22
Part no.| | 057 188
AUSTRIA
KNV Energietechnik GmbH Gahberggasse 11, 4861 SchörflingTel: +43 (0)7662
8963-0
[email protected] knv.at
FINLAND
NIBE Energy Systems Oy Juurakkotie 3, 01510 Vantaa
Tel: +358 (0)9 274 6970
[email protected] nibe.fi
NIBE Energy Systems
Hannabadsvägen 5
Box 14
SE-285 21 Markaryd
[email protected]
nibe.eu
This manual is a publication from NIBE Energy Systems. All product
illustrations, facts and specifications are based on current information at
the time of the publication’s approval.
NIBE Energy Systems makes reservations for any factual or printing errors in
this manual.