Gree ME30-24/D1(BM) Manual de usuario

Owner's Manual

Original Instructions

VRF Protocol Gateway

Model:

ME30-24/D1(BM)

To Users

Thank you for selecting Gree product. Before installing the product, please

read this instruction manual carefully to know well about the product and use it

correctly. In order to install and use the product correctly to reach the expected

operational effect, the following instructions are hereby issued:

（1）The appliance is not intended to be used by the people with physical,

sensory or mental handicap or the people without using experience and knowledge

(including children), except that they are supervised or guided by a person

responsible for their safety when using the appliance. Children should be

supervised to ensure that they do not play with the appliance.

（2）This instruction manual is universal manual, some functions introduced in

this manual are only applicable to specific products; all the illustrations and

information in this manual are only for reference, and the control interface should be

subject to the actual interface.

（3）In order to better meet the customers’ demand, our company will improve

the product continuously and we have the right to conduct necessary modification at

any time due to the reason of sales or production, and will reserve the right of

modification without further notification.

（4）We will bear no responsibility for the personal injury, property loss or

damage of equipment due to improper installation and debugging, unnecessary

maintenance, non-observance of related national laws, regulations, and industrial

standards, violation of any stipulations of this instruction manual, etc.

（5）The final authority for the interpretation of this instruction manual belongs

to Gree Electric Appliances, Inc. of Zhuhai.

Contents

1 Safety Notices (Please be sure to abide) ..................................1

2 User Notice ..................................................................................1

3 Function and Parameter .............................................................2

3.1 Functional Overview ...............................................................2

3.2 Parameter Specifications........................................................3

4 Parts and Assembly ....................................................................3

5 Introduction for Gateway............................................................3

5.1 Interface..................................................................................3

5.2 LED Display ............................................................................4

5.3 Button......................................................................................5

5.4 DIP Switch...............................................................................5

6 Application...................................................................................8

6.1 Building Management System (BMS).....................................8

6.2 Internet Topological Graph......................................................8

7 Product Installation...................................................................10

7.1 Product Size and Spatial Size for Electric Control Cabinet

Installation...................................................................................10

7.2 Gateway and BMS adopt Modbus RTU Protocol

Communication Connecting Method...........................................11

7.3 Gateway and BMS adopt Modbus RTU Protocol

Communication Connecting Method...........................................14

8 BACnet Protocol........................................................................21

8.1 Structure of BACnet Protocol................................................21

8.2 Object and Property of BACnet Protocol ..............................21

9 Attachment A TCP/IP Setting....................................................23

VRF Protocol Gateway

1 Safety Notices (Please be sure to abide)

WARNING: If not abide strictly, it may cause severe damage to the unit or

the people.

NOTICE: If not abide strictly, it may cause slight or medium damage to the

unit or the people.

This sign indicates that the operation must be prohibited. Improper

operation may cause severe damage or death to people.

This sign indicates that the items must be observed. Improper operation

may cause damage to people or property.

WARNING!

This product can’t be installed at corrosive, inflammable or explosive

environment or the place with special requirements, such as kitchen.

Otherwise, it will affect the normal operation or shorten the service life of the

unit, or even cause fire hazard or serious injury. As for above special places,

please adopt special air conditioner with anti-corrosive or anti-explosion

function.

2 User Notice

Dear customer:

Please read this manual carefully prior to installation and operation and strictly

observe all installation and operation instructions covered in the manual.

Special attentions shall be paid to the following marks:

WARNING!

This mark indicates operation, which if improperly performed,

might lead to the death or serious injury of the users.

CAUTION!

This mark indicates operation, which if improperly performed,

might possibly result in damage to the device.

WARNING!

(1)

Installation shall be performed by the qualified personnel; otherwise it would

result in a fire hazard or electric shock.

(2)

Do not place the plug of the power supply into the socket before it is dried and

cleaned.

(3) Cut off the power supply before touching the electric element.

VRF Protocol Gateway

WARNING!

(4)

Do not touch this device with wet hands; otherwise it would result in electric

shock.

(5)

Do use the power cable specified in this manual; otherwise it would result in a

fire hazard.

(6) When the power cable is rever

sely connected or the power supply is beyond

the rated range, it would result in a fire hazard or even damages to this device.

(7) For PLUGGABLE EQUIPMENT, the socket-

outlet shall be installed near the

equipment and shall be easily accessible.

(8) Do install thi

s device inside the electric control cabinet which is located indoor

and then is locked.

(9)

Do install this device where it will not be subject to the electromagnetic

interference or heavy dust.

CAUTION!

(1) Be sure the specified adaptor is used; otherwise t

his device would work

improperly or even be damaged.

(2)

Be sure this device is setup in place; otherwise it would result in

communication fault.

(3)

Be sure the communication line is connected to the correct interface;

otherwise it would result in communication fault.

(4)

After connection, lines should be protected with insulating tape to avoid

oxidation and short circuits.

(5)

Risk of explosion if battery is replaced by an incorrect type, dispose of used

batteries according to the instructions.

(6) Normal working conditions for Gateway：

①Temperature : -20～60℃;

②Humidity: less than 85%,except for the condensation of dew;

③

Location: indoor (it is highly recommended to install this product in the electric

control cabinet), not subject to direct sunlight, rain and snow etc.

(7) Graphics in the instruction manual are for reference only.

3 Function and Parameter

3.1 Functional Overview

Gree protocol gateway ME30-24/D1(BM) for multi VRF unit can realize data

VRF Protocol Gateway

exchange between air conditioner and BMS system and provide building interfaces

for standard Modbus RTU, Modbus TCP and BACnet/IP. This gateway is applicable

to the Gree multi VRF unit that uses CAN protocol.

Note: The Gateway ME30-24/D1(BM) of multi VRF unit in the following will be

called gateway for short.

3.2 Parameter Specifications

3.2.1 Gateway TCP/IP Parameter (Default)

IP Address：192.168.1.150

Subnet Mask：255.255.255.0

Default gateway：192.168.1.1

CAUTION：After the TCP/IP parameters are altered, the gateway should be

restarted, then the parameters can come into effect.

4 Parts and Assembly

This kit includes the following parts. Please check before installation.

Gateway

1 set

Instruction manual

1 set

5 Introduction for Gateway

5.1 Interface

5.1.1 Diagram of Interface Function

Fig. 5.1 Schematic of protocol gateway interfaces of multi VRF unit

VRF Protocol Gateway

5.1.2 Power

The input power supply is 24V DC, there are two power supply input interfaces,

only one is needed during operation; the power supply output is not applicable in

this device, please do not connect to electric appliance, otherwise it may cause

malfunction of gateway.

5.1.3 Communication Interface

CAN comm port: connect it to the AC unit through the 2-core communication

line to realize the communication between Gateway and the AC which adopts CAN

protocol.

RS485-1 comm port: connect to the BMS terminal through a two-core

communication line to realize the communication connection between the gateway

and the BMS terminal or the connection between adjacent gateways.

RS485-2 comm port: this device will not use this communication interface

temporarily.

USB and SD card port: this device will not use this interface temporarily.

Ethernet comm port ETH0:realize communication through network cable and

BMS.

Ethernet comm port CONFIG: this device will not use this interface

temporarily.

5.2 LED Display

As shown in the picture below, open the black transparent front panel.

Fig 5.2 Schematic diagram of opening the black transparent board

VRF Protocol Gateway

Indicators, buttons and DIP switch are as shown below.

Fig 5.3 The schematic diagram of the gateway LED light board and DIP switch

The above LED indicator is mainly consist of two parts: status indicator (run,

power) and communication indicator (CAN and RS485). The following table is the

working status of each indicator.

CAN RX

When receiving the data of equipment (eg. AC unit) which

connects to gateway, it blinks.

When transmitting data to the equipment (eg. AC unit) which

connects to gateway, it blinks.

RS485-1

When the gateway receives data on the 485 bus, it blinks.

When the gateway sends data to the 485 bus, it blinks.

RS485-2

This device does not use this LED indicator.

STAT

When power supply of Gateway is normal, it is on.

BEAT

When Gateway is running normally, it blinks.

BACKUP

This device does not use this LED indicator.

5.3 Button

SHT/DWN

When the fourth digit of DIP switch code is “1”, hold the

button for 5s and all indicators will be on. Reset the gateway

controller.

BACKUP

Not use this button for this device temporarily.

5.4 DIP Switch

NOTICE!

Before using this device, please conduct DIP switch setting first, otherwise the

unit will not function normally!

Gateway dial-up setting area is consisting of function DIP switch code.

VRF Protocol Gateway

5.4.1 Diagram of Dial-up Machine

5.4.2 The 1st Lever of Functional DIP Switch—CAN2 Bus Matched

Resistance Setting

NOTICE! Main control ODU or gateway at the top/end of CAN2 bus must be

with matched resistance; otherwise the communication might be wrong!

※CAN2 bus: Specific meaning shall refer to the specification in Fig Internet

topological graph.

The No.1 dial-up button in function dial-up machine shall be used in the setting

in the matched resistance of CAN2 bus in this gateway.

When the gateway is at the top/end of CAN2 bus, the gateway shall be with the

matched resistance, then dial the No.1 function dial-up machine to 1.

When the gateway is not at the top/end of CAN2 bus, the gateway is not with

the matched resistance, then dial it to 0.

VRF Protocol Gateway

Fig. 5.4 Gateway access CAN2 network matching resistance setting

Fig. 5.5 Schematic of dial code

5.4.3 The 2st Lever of Functional DIP Switch—485 Bus Matched

Resistance Setting

The 2nd dial code of the function dialer is used for setting the matching

resistance of the gateway of 485 bus.

When the controller is at the beginning/end of the 485 bus, the controller needs

to be set to be with matching resistance, then the second bit of function dialer is set

to 1; when the controller is not at the beginning/end of the 485 bus, set the controller

to be without matching resistance, and set the dial code to 0.

Fig. 5.6 Schematic of dial code

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