Hisense HCPC-H2M1C Service manual

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P00862
Q
Modbus Adapter
(Model : HCPC-H2M1C)
Installation Instruction Manual
Thank you for choosing Hisense
commercial air conditioner!
Please keep this manual for future
reference after reading, please ask the
dealer or service personnel of the
company for the “Mapping Table”
mentioned in this manual. If there’s
any question, please contact the dealer
or the service center of the company.
This manual is exclusively for Modbus adapter
(HCPC-H2M1C).
Tips:Before installing Modbus adapter, please
read the installation instruction manual
carefully, and make sure you understand the
information provided before carrying out
related operation.
Preface·Important Safety Information ……….…….……… 1
1.0 System Constitution………………….….………….… 5
(Name of each part · Name of parts in Modbus adapter ·Modbus
Adapter Specifications)
2.1 Installation Place ….……………….…………… 10
2.2 Installation Method…………….………..……… 10
2.3 Wiring Connection Method...……….…………… 12
2.4 Slide Switch Setting Method ……….………………… 16
2.5 Power Supply Input...…………………………… 17
3.1 Configuration of Modbus adapter………..…………… 19
3.1.1 IP Address Setting ………...……..…………… 19
3.1.2 Clock Setting ………………………………... 25
3.1.3 Change LAN WEB Login Password...……… 26
3.1.4 Change Wireless WEB Login Password...…… 26
3.1.5 One Key to Clear EEPROM …………….…… 27
3.1.6 Remote Server IP Address Setting…………… 27
3.1.7 Subnet Mask Setting………………………… 28
3.1.8 Gateway IP Setting …………………………… 29
3.2 SD Card Data Storage……………….….………… 30
3.3 External Input and Output Linkage Function……… 30
3.4 Single Board Constant Speed Machine Login…..… 31
3.5 Check MAC Address……...………………… 31
4.1 Modbus Code Composition and Analysis…………...…… 32
4.1.1 Modbus RTU Code Composition…………… 32
4.1.2 Modbus TCP Code Composition…………… 34
4.2 Control Bit Setting ………………………..…… 36
4.3 Filter Clear Setting……………………………… 36
4.4 Function Selection Setting……………………… 37
4.5 Wire Controller All Prohibition Setting………… 38
4.6 Wire Controller Partial Prohibition Setting……… 38
4.7 Do Not Install Wire Controller Setting …….…… 40
4.8 Three Important Function Setting in Mapping Table… 40
4.9 Outdoor Unit·Indoor Unit Connection Confirmation 40
4.10 Indoor Unit Data Monitoring ……….……… 41
4.11 Batch Processing Command Description …………42
4.12 Turn off Digital Tube Alarm Display Function ….42
Maintenance · After-sales Services ·Notes and Attentions… 43
Recommend upper computer Tool ………………………… 48
Centralized Control Area Unit Group Registration Form …… 49
Accessory List ……………………………………….. End Page
CERTIFICAT ………………………………………… End Page
After-sales Services
Operation Method
Configuration Method
Before use

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●The product is Modbus adapter for air conditioner.
●Do not install this product in the following places where are easy to lead to
failure of the Modbus adapter.
·Place where there is oil (including mechanical oil) splash, a lot of
steam;
·Hot springs and other places with more sulfide gas;
·Place where combustible gas may be generated and flow in;
·Coastal zone with higher salt content;
·Acid or alkaline environment.
●When using medical devices and other devices which produce
electromagnetic wave, in order to prevent malfunction of the air
conditioner, do not make the emission surface of the electromagnetic
wave directly facing the electrical box, remote control wire and
remote control.
●In addition, in order to prevent airborne electromagnetic waves from
affecting the air conditioner, please put the apparatus which can
generate electromagnetic wave and radio transmitting device at a
distance of 3M away from the remote control.
Preface
：Indicates incorrect operation, which may cause injury or damage
to the product.
: Indicates incorrect operation, which may cause serious
in
j
ur
y
or death.
：Note, other than warning, attention.
：Indicates prohibition matters.
:Indicates compulsory matters, instruction for
behavior of non-professional and general users.
: Help you operate more easily.
:Reference page.
Symbol Meaning
Installation · Electrical Construction
●Please entrust the dealer or professional installation personnel for the installation.
If you install it improperly, it may cause electric shock, fire, adapter fall down and other injury accidents.
●Relevant important safety information is also listed in the manual of attached indoor and outdoor unit, please be sure to comply!
●Electrical construction worker shall obtain construction qualification. Please entrust qualified dealer to carry out.
If carrying out construction by yourself, improper installation may cause electric shock and other accidents.
●When you open the top cover of the unit, ensure to cut off the main power supply. As long as the main power is not cut
off, the power terminal is in charged state.
Warning
Im
p
ortant Safet
y
Information
But in [Attention] column the matters listed may also cause serious
consequences in special circumstances. Because what it lists are important
matters related to safety, please be sure to comply!
●please keep this manual properly for future reference after reading.
●Please correctly use this product after carefully read this important safety
information.
●The notes listed here are divided into Warning and Attention
two types. In [Warning] column it lists incorrect operation which may cause
serious consequences.
Warning
Attention
Note
Shortcut

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Repair and move
●When using power adapter, please choose formal manufacturer, 3C
certification is essential.
Other warnings and attention
●
In repair or maintenance, do not let water enter the interior. Electric shock may
occur when electrical parts encounter water.
●Do not change electrical wiring. Otherwise it may cause major accidents.
●In repair and maintenance, please use solid ladder. Otherwise it may overturn and
cause injury.
Warning
Warning
●When this product is repaired and moved, please consult the dealer or service
center designated by the company.
●Improper repair and installation may cause electric shock, fire and other accidents.
Attention
Important Safety Information (Continued）

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Installation
Warning
●This product supports sit and hang type installation, be sure to check whether four rubber feet is installed
firmly for sit type installation.
●Please install and use strictly according to this manual. Improper installation may damage the product.
●Do not install this product in the place where combustible gas may be generated and flow into. Otherwise,
it may cause a fire.
Attention ●When the product is subject to electromagnetic wave (strong shock) and other external interference, it may
be unable to send or receive signals, pay attention to the installation position of the product.
Wiring
Warning
●All parts of the product are using weak current, all terminals are prohibited to connect to 220V AC,
otherwise it will burn the product.
●Wiring is fixed firmly with external force, poor fixing may cause high temperature, and cause fire or
electric shock.
●The wiring connection should be reliable. If the connection is loose, the wire gets hot and causes fire or
electric shock.
Attention ●Turn off the power supply before wiring operation, otherwise, it may cause electric shock accident.
Use
Warning
●Do not place it where can be reached by children, otherwise, the product is easy to be damaged and causes
accidental injury to the child’s body.
●When using in the following circumstances, it may cause abnormal communication, cannot concentrate to
control the air conditioner units, so please use it based on full confirmation.
○Continuous use in high humidity;
○Use in the state of strong shock;
○Use in the state of long time vibration;
○Use in the places of electrostatic, electromagnetic waves;
○Use in the places where the ambient environment may change sharply;
○Use in the places where the warm air heater sends air and blows straightly;
○Use in the environment of liquid, corrosive gas and tidal wind.
Important Safety Information (Continued）

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Attention ●The company is committed to the improvement of the products constantly, it may subject to change without
notice.
●This product is only used for conversion between the air conditioner network and control network.
●The company does not provide service of changing the product to other use.
●Without permission, no part of this manual shall be copied.
●If you have any question, please contact the service center designated by the company.
Arrival
inspection ●Upon receipt of this product, inspect it for any damages incurred in transit.
●Check whether the accessories are complete.
●Do not use this product in other places which are not specified in this manual.
Important Safety Information (Continued）

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1.1 System Constitution
Figure 1.1 shows the system constitution case of using this product.
LAN
Indoor unit
system can connect WIFI
WIFIsignal
LAN
H-NET
Optional
Modbus RTU Modbus TCP
Router or switch
Modbus adapter
Outdoor unit
Third party control
RS-485 line
Figure 1.1 The product system constitution case
This product is Modbus adapter of Hisense air conditioner. Use Modbus TCP as the main body, compatible with Modbus
RTU protocol, and convert the communication protocol of the company’s air conditioner into Modbus standard format protocol
for PC’s secondary development and monitoring. It’s more convenient to achieve docking with the third party system.
The product also has the following functions:
①Can concentrate to control the air conditioner units;
②Support WIFI connection;
③Record the running status and alarm code of air conditioner (SD card storage);
④External input and output linkage function;
⑤Support USB power supply;
⑥LAN control;
⑦Indoor unit data monitoring;
⑧WEB server configuration, etc.
Note
●The object controlled by the product is the outdoor and indoor unit connected to the communication line.
●One Modbus adapter can be connected to the same bus the utmost.
●Do not support the connection of no crossing line for indoor unit.
1 System Constitution

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1.2 Name of Each Part
See the name of each parts of the product shown in Figure 1.2, 1.3.
POWER RUN H-NET Modbus/BACnet WIFI RS-485
RUN (green) Running status of the product
when flashing the product usually can control
the air conditioner
Screw (M3) for fix the top cover
POWER (red)
Power shows LED , lighting up
When supplying power for the product
H-NET (green)
H-NET state shows LED flash in
communication with air conditioner
Digital tube
Displays SW version number when turn on
power, usually display system number and
alarm code
LOGO and Model No.
WIFI (green)
Flash when using WIFI for connection
Modbus (green), no BACnet. Flash when
using Modbus TCP for communication
RS-485 (green)
Flash when using Modbus RTU
for communication
Screw (M3) for fix the top cover
Figure 1.2 Name of each part 1
Communication terminal
Connect with air conditioner
1 2 LAN SD
NO USE NO USE A RS-485 B OUTPUT
2 1 +12V
INPUT
2 +5V 1
WIFI
POWERUSB
LAN connector
Connect with computer, etc.
MINIUSB
For charging
SD card socket
Insert SD card
Reserved connector
This machine cannot use
RS-485 Connector
A/+,B/-
External output connector
Output 2, output 1, +12V
External input connector
Input 2, +5V, input 1
POWER 12VDC input
(Inside positive
outside negative)
Upper cover
grille for heat
radiation
Rubber feet
WIFI antenna
Reserved connector
This machine cannot use
Figure 1.3 Name of each part 2
1 System Constitution

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1.3 Name of Parts in the Modbus Adapter
See the state of removed top panel in Figure 1.4. See the name and functions in below figure.
SW12 SW3
SW4
SW9SW11
SW8 SW7SW5SW6
SEG2SEG1 LED6LED5LED10LED7LED8LED9
Screw to fix top cover （ ×4 ）
Slide switch for MCU operation mode
and RS-485 circuit
（ ×2 ）
（
SW12 、 SW3 ）
MCU
7 segment digital tube LED
， display
（ SEG1 、 SEG2 ）
Slide switch for Air conditioner RS-485
circuit setting terminal resistance
（ × 1 DSW2 on the slave base plate)
Slide switch for air conditioner circuit
setting terminal resistance
（ ×1 ）
（
DSW3 ）
Stud to fix main and slave base plate
Reset switch
（ ×1 ）
Press （ SW4 ） to reset the product
Slide switch
（× 2 ）
（
SW11 、 SW9 ）
Tacting switch （ ×4 ）
（
SW6 、 SW5 、 SW8 、 SW7 ）
LED light post （ ×6 ）
Screw hole to fix on the wall （× 4 ） ,
remove the rubber feet,Use M3
screw to fix
DSW2
DSW3
Figure 1.4 Name of parts in the Modbus adapter
The default slide switch setting state shown in Figure 1.5
ON
OFF
8712 4356
SW9
653421 78OFF
ON
SW11
ON
OFF
ON
OFF
653421 78
SW3
8712 4356
SW12
DSW3
DSW2
12
ON
OFF
ON
21
MCU operation mode setting cannot change at any time.
When pin 1 is ON, refers to enable output 1, when pin 2 is ON, refers to enable output 2.
Indicate to activate the hardware of RS-485 loop.
Reserve.
When Pin 1 is ON, connect 75Ωterminal resistance in the H-NET communication bus.
When Pin 2 is ON, connect 120Ω RS-485 terminal resistance in the communication bus.
OFF
When Pin 3 is ON, it shows the system is connected with single board constant speed machine.
Figure 1.5 The default setting state of code switch
1 System Constitution

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1.4 Modbus Adapter Specifications
See Table 1.1 for the hardware specifications; Table 1.2, 1.3, 1.4, 1.5 for the communication specifications.
Table 1.1 Hardware specifications
Items Specifications
Power supply 12VDC power adapter input or 5VDC MINI USB input
Consumption power Below 12W
Action environment condition Environment temperature: 0~40℃
Environment humidity: 20~85% (no condensation)
Dimension L×W×H (mm): 220×170×50(excluding the protruding part)
Weight About 1kg
Installation condition Indoor use, support both horizontal (installation) and vertical (hang)
Table 1.2 Air conditioner H-NET II communication specifications
Items Specifications
Communication object Outdoor and indoor air conditioner
Communication wiring Shielded twisted pair
Communication mode Half duplex communication
Concurrent mode Asynchronous communication
Communication speed 9600bps
Wiringdistance Totallengthbelow1000m
Number of air conditioners to be
connected
The largest outdoor unit ×64[system], maximum indoor unit ×64[set]
In the same H-NET II bus, total number should be below 200 sets (including
centralized control device).
※Cannot connect to non H-NET II unit.
※For outdoor unit combined with several modules, counted as 1 set outdoor unit
when calculating the number of outdoor unit
Centralized controller can be
used together
Hi-Dom、HYJ-J01H
※The number of centralized control devices can be used together on the H-NET II
does not exceed 8 sets (including this product).
Table 1.3 LAN (Modbus TCP) communication specifications
Items Specifications
Communication object Computer used for management, PLC
Communication wiring LAN（Ethernet）
Communication mode IEEE802.3 standard（10BASE-T/100BASE-TX）
Wiringdistance 100m
1 System Constitution

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Table 1.4 RS-485(Modbus RTU) communication specifications
Items Specifications
Communication object Computer used for management, PLC
Communication wiring Shielded twisted pair, Distinguish A/B port
Communication mode Half duplex communication
Concurrent mode Asynchronous communication
Communication speed 9600bps
Wiringdistance Within1000m
Table 1.5 External input and external output communication specifications
Items Specifications
External output voltage 12VDC
External input voltage 5VDC Dry node signal (short circuit or open circuit)
Function and application With external linkage, provide output and input signal of the switch
Wiringdistance Within70m
1 System Constitution

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This chapter describes the installation method from installing the product to power input. See Table 2.1 showing the process
from installation to power input.
Table 2.1 Installation Process
Sequence Item Content to confirm
1 Select installation place Notes and attention in respect of setting
2 Installation method Installation methods and attentions
3 Wiring connection method Connection method of each wiring
4 Switch setting method Switch content and setting method
5 Power input Matters to confirm
2.1 Installation place
Please select a place which meets the following conditions for installation:
(1) The place where the [Preface] of the installation instruction manual describes.
(2) For horizontal installation, pay attention to select a relatively stable table.
For vertical (wall hang) installation, please use M3 screws to fix it on the sturdy wall.
2.2 Installation Method
(a) As shown in Figure 2.1, ensure maintenance space.
50mm
50mm
30mm
300mm
POWER RUN H-NET Modbus/BACnet WIFI RS-485
Figure 2.1 Maintenance space
2 Installation construction

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(b) Vertical (wall hang) installation
(1) For vertical (wall hang) installation, note the connector side is top side, as shown in Figure 2.2.
RS-485WIFI
Connector side up
POWER RUN H-NET Modbus/BACnet WIFI RS-485
RS-485WIFI
Modbus/BACnet
H-NETRUNPOWER
Modbus/BACnet
H-NETRUNPOWER
Figure 2.2 Installation direction
(2) Remove 4 rubber feet.
(3) Loosen 4pcs screws which fix the top cover, remove top cover, as shown in Figure 2.3, 2.4.
(4) Use “M3 screw” to fix on the wall from the inner side of the frame, as shown in Figure 2.5. (“M3 screw” needs
to be prepare on the spot)
(5) Install top cover.
（2） （2）
（3）
Figure 2.3 Remove rubber feet and top cover Figure 2.4 Direction of removing top cover
2 Installation construction

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180mm
Use M3 screws to fix on the wall
140mm SW6 SW5 SW7SW8
SW11 SW9
SW4
SW3SW12
DSW3
DSW2
LED9 LED8 LED7 LED10 LED5 LED6SEG1 SEG2
Figure 2.5 Position and size of the screw holes
2.3 Wiring connection method
Please read carefully before construction.
●Place where the [Preface] of this installation instruction manual describes.
●Carry out wiring construction according to relevant national electrical equipment and construction standards as well as the
guidance of electric power companies.
●When it is used below 300V power supply voltage, there’s obligation to do D class grounding construction (grounding
resistance below 100Ω), when used above 300V low voltage circuit, there’s obligation to do C class grounding construction
(grounding resistance below 10Ω).
●Communication line should be as shorter as possible, more than 150mm away from power line, do not be parallel with the
power line (can cross). In any case, when parallel construction is required, please put the communication line or power line
into the metal tube (one end has ground contact); or communication line adopts shielded wire and other anti-disturbance
measures.
●Please do not implement internal change of the product. Otherwise, it may cause failure.
2 Installation construction

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2.3.1 Wiring Method
(1) This product should connect to power supply wiring (adapter), communication line with air conditioner (H-NET),
communication line with computer for management (Modbus TCP)
If using RS-485 loop (Modbus RTU), need to connect with RS-485 special communication line.
If using USB for power supply, please use MINI USB communication line for power supply.
In addition, if connected to external equipment, also need to carry out construction of communication line (external
input and output) with external unit.
During wiring construction, ensure to cut off the main power supply.
(2) Wiring Method
, prepare on the spot
Power line
Wired remote control
Indoor unit
Outdoor unit
Centralized control computer
H-NET
Power line Modbus adapter
3
Modbus TCP
4
1Power adapter 12V
or MINI USB input
2
5
6
Modbus RTU
External input and output
Figure 2.6 Wiring Method
Table 2.1 Installation process
Sequence Wiring type Specifications Wiring length Cable specification
①Power supply wiring 12VDC or MINI USB 5V
power supply —— 1.25～2mm2
②Grounding wire —— —— 1.25～2mm2
③Modbus TCP wring IEEE 802.3 standard Below 100m Above LAN cable 5
class
④H-NET wring 5VDC Below 1000m 0.75～1mm2
⑤Modbus RTU wring 5VDC Below 1000m 0.75～1mm2
⑥External input and
output wiring
Input: 5VDC
Output: 12VDC Within 70m 0.5～1.25mm2
※For Modbus TCP wiring, use LAN wiring, Modbus adapter LAN port is RJ45.
※When connecting to Modbus TCP wiring, insert LAN port of Modbus adapter at one end, connect to computer for
management or HUB at the other end.
※Please use through LAN wiring.
Note
●Power supply wiring, communication line (Modbus TCP, Modbus TRU, external input and output) require
distance above 150mm.
●When using shielded wire, class D grounding work must be done.
2 Installation construction

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2.3.2 About Wiring Connection
(1) For wiring connection, please ensure to cut off the main power supply and the power supply of surrounding machine.
(2) Please connect to each wiring according to Table 2.2, the [sequence] column in the table shall be corresponding to the
[sequence] in Table 2.1.
Note: do not remove the cover of unused connectors, if removed, it may cause failure.
Table 2.2 Installation process
Distinguish Place to Connect Sequence Wiring method Remark
Power supply
cable
DC 12V ①
Plug the 12V power adapter to
the DC port of Modbus adapter
as shown in left figure.
Or use MINI USB 5V ①
Insert MINI USB cable to the
USB port of Modbus adapter as
shown in left figure. The other
end of USB use 5V power
supply.
Ground wire —— ②—— ——
Communication
line
Computer for
management/PLC
(LAN)
③
Connect with computer for
management or HUB, use
through network cable, insert
and lock tightly.
Air conditioner
(H-NET) ④
· No polarity, circular terminal
connects to fastening torque
0.4N·M.
· Please connect H-NET wiring
to the H-NET terminal of the
air conditioner.
Computer for management
/PLC
(RS-485)
⑤
· DC 5V, A-A, B-B, circular
terminal connects to the
fastening torque 0.4N·M.
· Please connect the RS-485
wiring to the computer for
management or PLC.
A RS-485 B
A B
1 2
2 Installation construction

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Table 2.2 Installation process (continue)
Communication
line
External equipment
(INPUT) ⑥
· DC5V input, refer to Table
2.3 External input and
output table.
External equipment
(OUTPUT) ⑥
· DC12V output, refer to
Table 2.3 External input and
output table.
· SW11 output bit1 is ON,
output 1 is valid.
· SW11 output bit2 is ON,
output 2 is valid.
Table 2.3 External input and output table
Sequence Input output Operation Setting content
1 Input1 INPUT1 Short circuit 5V and input 1 terminal Close all indoor unit
2 Input 2 INPUT2 Short circuit 5V and input 2 terminal Close all indoor unit of system
NO.0
3 Output 1 OUTPUT1 Code switch SW11 bit1 is ON Running signal
4 Output 2 OUTPUT2 Code switch SW11 bit2 is ON Alarm signal
<Connection example>
Figure 2.6 Example of using Input and output
Note
●If powered by MINI USB, do not use external output function.
●When both input 1 and input 2 are valid, input 1 is valid, input 2 is neglected.
●When using pulse input, please note pulse width and pulse interval shall be above 500ms.
●Please choose the relay with DC12V and rated current below 40mA to connect to external output.
●Please do not use relay with built-in diode. If the wiring is wrong, it may be damaged.
INPUT
2 5V 1
接点1
接点2
OUTPUT
2 1 12V
RYRY
2 5V 1
INPUT
2 1 12V
OUTPUT
C
onnect
i
on
point 2
C
onnect
i
on
point 1
2 Installation construction

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2.4 Slide Switch Setting Method
Table 2.4 Slide Switch Setting Table
Slide switch Purpose Factory setting Remark
SW12
(MCU operation
mode)
bit1 OFF : None OFF Please do not change.
bit2 OFF : None OFF Please do not change.
bit3 ON : MCU normal operation ON Please do not change.
bit4 OFF : None OFF Please do not change.
bit5 OFF : None OFF Please do not change.
bit6 OFF : None OFF Please do not change.
bit7 OFF : None OFF Please do not change.
bit8 OFF : None OFF Please do not change.
SW3
(RS-485 circuit)
bit1 OFF : None OFF Please do not change.
bit2 OFF : None OFF Please do not change.
bit3 ON : RS-485 circuit enable
OFF : RS-485 circuit disable ON Please do not change.
bit4 ON : RS-485 circuit enable
OFF : RS-485 circuit disable ON Please do not change.
bit5 OFF : None OFF Please do not change.
bit6 OFF : None OFF Please do not change.
bit7 OFF : None OFF Please do not change.
bit8 OFF : None OFF Please do not change.
DSW3
(H-NET)
bit1
ON : H-NET circuit terminal resistance
75Ωis available
OFF : H-NET circuit terminal
resistance 75Ωis not available
OFF
When terminal resistance of the
product is available, please ensure to
confirm there’s no terminal resistance
in the same H-NET.
bit2 —— OFF ——
SW11
(function code)
bit1 ON : External output 1 enable
OFF : External output 1 disable OFF ——
bit2 ON : External output 2 enable
OFF : External output 2 disable OFF ——
bit3
ON : Single board constant speed
machine is connected to the system
OFF : No single board constant speed
machine is connected to the system
OFF ——
bit4 OFF : None OFF ——
bit5 OFF : None OFF ——
bit6 OFF : None OFF ——
bit7 OFF : None OFF ——
bit8 OFF : None OFF ——
SW9 (reserve) —— —— OFF ——
DSW2
(RS-485 terminal
resistance）
bit1 ON : None ON ——
bit2
ON : RS-485 circuit terminal resistance
120Ωis available
OFF : RS-485 circuit terminal
resistance 120Ωis not available
ON
Please ensure there’s terminal
resistance to be connected at both
ends of the RS-485 communication
circuit.
2 Installation construction

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Please change the slide switch setting before input power supply.
The slide switch setting table of this product is shown in Table 2.4. In addition, according to the using situation on the spot,
sometimes it may need to change factory setting.
2.5 Power Supply Input
When setting the slide switch, please refer to the following procedures.
(1) Turn off the power supply of the product, open the top cover.
(2) Change switch setting.
(3) Complete installation, wiring connection, by end of switch setting, close the top cover, tighten and fix the screws, please
complete the following operation, then input power supply.
※Please connect to the power supply of all connected air conditioner group.
※Carry out test run for all air conditioners, ensure that all air conditioners can work properly.
※Please input main power supply.
※Please input the power supply of the machine.
POWERlightsup.
After about 10s, start the connection confirmation of the air conditioner.
During the air conditioner connection process, EUN lights up constantly.
※ It takes about 20 minutes the longest to complete the connection (according to actual connection quantity of the air
conditioner), when the product enters normal running air conditioner, RUN light flashes in 1Hz.
See lights status and light content at normal control (normal) and abnormal shown in below Table 2.5.
Table 2.5 Lighting condition table of each light
Name of light State Lighting condition Condition of lighting off
POWER Power supply ·Turn on power supply ·Cut off power supply
RUN Connection
confirmation state
·Constant lighting up during connection
confirmation ·Flash in 1Hz in normal control
H-NET
H-NET
communication
state
·In the circumstance of receiving data in
H-NET
·In the circumstance of sending data in
H-NET
·In the circumstance of not
receiving data in H-NET
·In the circumstance of not sending
data in H-NET
Modbus
/BACnet
Modbus TCP
communication
state
·Light up when it’s connected to Modbus
TCP
· Flash when data has been received on
Modbus TCP
·In the circumstance of not
receiving data in Modbus TCP
WIFI
WIFI
communication
state
·Light up when it’s connected to WIFI
·Flash when data has been received on WIFI
·In the circumstance of not
receiving data on WIFI
RS-485
Modbus RTU
communication
state
·In the circumstance of receiving data in
Modbus RTU
·In the circumstance of sending data in
Modbus RTU
·In the circumstance of not
receiving data in Modbus RTU
·In the circumstance of not sending
data in Modbus RTU
2 Installation construction

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See the digital tube display in normal control (normal) and alarm and display content as shown in Table 2.6.
Table 2.6 Lighting condition table of each light
State Lighting · display
condition Lighting off ·display cancel condition Display content of 7 segment digital tube
Show software
version number
When power on the
machine Light off after 2s
i.e.:
Alarm code 00～FF
(except 60,61,64,65）
Air conditioner
alarm
Please refer to the
installation and
maintenance manual of
each air conditioner.
i.e.:
60
This
product-abnormal
communication
among outdoor
units (when more
than 1 indoor unit is
running)
Please confirm the
H-NET wiring
connection
i.e.:
61
This
product-abnormal
communication
among indoor units
(when the indoor
unit is running)
Please confirm the
H-NET wiring
connection
i.e.:
64
This
product-abnormal
communication
among outdoor
units (when all the
indoor unit stops)
Please confirm the
wiring connection of
H-NET
i.e.:
65
This
product-abnormal
communication
among indoor units
(when the indoor
unit stops)
Please ensure the
wiring connection of
H-NET
i.e.:
Flash
Constant
lighting
Flash
System number 02 constantly lighting, alarm code 13 flashes in 1Hz
System number 02 constantly lighting, alarm code 60 flashes in
System number 02 constantly lighting, alarm code 61 flashes in
System number 02 constantly lighting, alarm code 64 flashes in
System number 02 constantly lighting, alarm code 65 flashes in
Constant
lighting
Flash
Constant
lighting
Flash
Constant
lighting
Flash
Example
Constant
lighting
2 Installation construction