Mitsubishi Electric Central Controller G-50A Manuel utilisateur

Mitsubishi Electric Air-conditioner Network System

Central Controller

Model: G-50A

Instruction Book

Before using the controller, please read this Instruction Book carefully to ensure proper

operation. Keep this manual for future reference.

Contents

1. Safety precautions ...................................................... 1

2. Product features ......................................................... 2

3. Functions .................................................................... 4

3-1 Specifications .................................................. 4

3-2 Display Screen ................................................ 8

4. User operation ......................................................... 10

4-1 Operation condition monitor ......................... 11

4-2 Operation setting .......................................... 12

4-2-1 Group operation setting ........................ 12

4-2-2 Collective operation setting .................. 16

4-3 Timer operation ............................................ 19

4-4 Malfunction ................................................... 23

4-5 Current time setting ...................................... 24

5. Initial setting ............................................................. 25

5-1 Shifting to initial setting menu ...................... 25

5-2 M-NET address setting ................................ 25

5-3 Function setting ............................................ 26

5-4 Group configuration setting .......................... 27

5-5 Interlocked operation setting ........................ 29

5-6 Group name setting ..................................... 31

5-7 User setting .................................................. 34

5-8 IP address setting ........................................ 35

5-9 Initial setting tools connection function ........ 35

6. Maintenance ............................................................ 36

6-1 Refrigerant system monitor .......................... 36

6-2 Malfunction log monitor ................................ 37

7. External input / output function ................................ 38

7-1 External input function ................................. 38

7-2 External output function ............................... 39

Appendix 1: Initial setting (abridged) ............................. 40

Appendix 2: User operation (abridged) ......................... 42

G-50A

ON/OFF

CENTRAL CONTROLLER

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– 1 –

1. Safety precautions

Before using the controller, read the Safety Precautions section carefully to ensure proper operation.

These safety precautions must be observed by anyone who operates the central controller at all times.

Keep this Instruction Book and Installation Manual for future reference. Make sure both this Instruction Book and the

Installation Manual are given to the next user.

Safety symbols used in this manual

WARNING

CAUTION

This symbol indicates that failure to follow the instructions exactly as stated poses the risk of

serious injury of death.

This symbol indicates that failure to follow the instructions exactly as stated poses the risk of

injury or damage to the controller.

WARNING

CAUTION

●

Have the unit professionally installed.

Improper installation by an unqualified person may result in

a risk of electric shock or fire.

●

Make sure the controller is securely mounted so

that it will not fall.

●

Do not remove the cover during operation.

Contact with electrically charged parts on the controller

cause skin burns or other types of injury.

●If any abnormality is noticed (e.g., burning smell),

stop the operation, turn off the power supply, and

contact your dealer or technical representative

immediately.

Continuing the operation may result in damage to the

controller, electric shock, or fire.

●

Ask your dealer or an authorized technician to

move the controller.

Improper installation may result in electric shock or fire or

damage to the controller.

●

Controllers must be disposed of properly.

Contact your dealer for proper disposal procedures.

●

Do not install the controller where there is a risk of

leakage of flammable gas.

If the leaked gas accumulates around the controller, it may

be ignited and result in an explosion.

●

Do not use the controller in an environment high in

oil, steam, or sulfuric gas.

These substances may have adverse effects on the

performance of the controller of damage its parts.

●

Do not wet the controller.

Water may damage the controller and cause an electric shock.

●

To avoid the risk of electric shock or damage to the

controller, do not touch the switches with wet hands.

●

Do not use the controller for specialized applications.

This product is designed exclusively for use with the

MITSUBISHI ELECTRIC building air conditioning control

system. The use of this product with other air-conditioning

management systems or for other purposes may result in

malfunctions.

●

Do not spray insect sprays or sprays with

flammable propellants to the controller.

To avoid the risk of fire or explosion, do not place

flammable sprays near the controller or spray them directly

on the controller.

●

Operate the controller within the temperature range

specification.

The use of controller outside of its specification may result

in serious damage to the controller. Be sure to check the

temperature range specification in the Instruction Book.

●

To avoid the risk of electric shock or damage to the

controller, do not press the switches with sharp

objects.

●

Stop the operation immediately and notify your

dealer if an error code is displayed and the controller

does not operate, or when any abnormality is

noticed.

Continuing the operation may result in damage to the

controller or fire.

●

Do not attempt to modify or repair the controller.

Modification or improper repair may result in electric shock

or fire. Consult your dealer when repairs are necessary.

●

Make sure that the controller is connected to a

properly rated power supply to avoid fire or

damage to the controller.

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2. Product features

The central controller is capable of controlling up to 50*1 air conditioner units. It supports the following functions.

(*1: The maximum number of connectible units depends on the indoor unit models.)

[1] User operation functions

(1) Operation

1. Most of the functions of the local remote controllers are supported by the central controller.

The central controller can turn on or off the indoor units in specific groups, display the room temperature for

each indoor unit group, change the operation mode of the indoor units (COOL, DRY, FAN, AUTO and HEAT)

and of the ventilation units (HEAT RECOVERY, BY-PASS, AUTO) as well as change the fan speed, air flow

direction (4 directions and swing), ventilation mode (OFF, LOW speed, or HIGH speed), TIMER MODE, and

temperature setting.

(Refer to section "5-7 User setting".)

2. Access to specific functions of the local remote controller, such as ON/OFF operation, mode selection, tempera-

ture setting, and filter sign reset can be prohibited.

3. Group setting

Operation settings can be made for the entire groups or for each individual group.

(2) Weekly Schedule

1. The weekly schedule allows four different patterns of schedule to be set for each group. (P1-P4)

Three of the four patterns (P1, P2, P3) are used to set the ON/OFF schedule, and the other one (P4) is used to

prohibit the operation from the local remote controller.The ON/OFF schedule patterns (P1, P2, P3) can be used in

combination with the operation prohibition function (P4) to set the schedule within the same day. By setting the

schedule for each day of the week by using the four schedule patterns in combination, a weekly setting can be

made for each group.

2. For each day, three ON times and three OFF times, or three prohibition times and three permission times can be

set. It is possible to set only the ON times (prohibition times only) or only the OFF times (permission times only).

3. Easy setting

Daily operation schedule and weekly schedules (P1-P4) of a group can be copied to the settings for other

groups.

(3) Operation status monitoring

1. The ON, OFF, or MALFUNCTION status of each unit or the group can be monitored.

2. Either the group numbers or the first three characters of group names that are controlled by the central controller

can be displayed. The address of all units can be displayed altogether.

3. While all groups are displayed on the screen, the group that is marked with the symbol can be turned ON or

OFF.

(4) Malfunction monitoring

1. The unit in error, error code, the address of the unit that detected the unit in error will appear on the "Malfunction

monitor" screen.

2. Pressing the reset key stops all the units in the same group or in the same refrigerant system as the unit in error,

and resets the error.

[2] System configuration setup and maintenance

(1) System configuration setup

1. Indoor units, local remote controllers, and lower-level system remote controllers can be registered in the same

group. OA processing or LOSSNAY units can also be registered.

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2. Each group can be specified by its name.

(Alphanumerical characters can be used for the group name.)

3. Group names can be copied to the settings for the other groups.

4. The group configuration settings and the group names can be set as long as power is supplied to the central

controller, even if indoor units have not been connected.

5. When the system configuration was changed, the system configuration data on the central controller can be

erased all at once if necessary.

(2) Refrigerant system monitoring

The addresses of all the units (indoor, outdoor, etc.) in each refrigerant system can be displayed on this screen.

This information is useful for checking the address setting, transmission line connection, and power supply con-

nection.

(3) Interlocked operation setting

Make this setting to perform an interlocked operation of one or more of the indoor units and a ventilation unit. The

interlocked ventilation unit will go into operation when one of the indoor units that is interlocked with it goes into

operation.

(4) Malfunction log

1. The log of the central controller will be kept for the last 64 errors.

2. Information about the date/time of error occurrence, address of the error-source unit, error code, and the address

of the unit that detected the error will be displayed on the screen.

3. The log of the central controller and indoor units can be deleted all at once with the reset button.

[3] Miscellaneous

(1) Entire-system status lamp (Operation/Stop)

Displays the status of the entire system (Normal operation, all OFF, and malfunction status are indicated with a lit,

unlit, blinking lamp respectively).

(2) Collective ON/OFF switch

This switch turns all of the units in the system ON or OFF at once.

(3) Power supply wiring

Power to the central controller is supplied from the PAC-SC50KUA unit through the M-NET transmission line of DC

power line. The length of the DC power line between the PAC-SC50KUA power supply unit and the central control-

ler must not exceed 10 m.

The central controller can be connected to anywhere on the M-NET transmission line. (M-NET transmission line is

a central control line that is connected to the TB7 on the outdoor unit.)

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– 4 –

Item

Source power requirement

Environmental condition

Dimensions

Weight

System condition

Number of control unit

User operating function

ON/OFF

Operation

mode *1

Fan speed *1

Operation

Air direction

and swing

operation *1

Temperature

setting

Specification

DC24V, 0.02A (Maximum loading)

Power received from PAC-SC50KUA Power Supply Unit via M-NET transmission

line, or from an R410A compatible CITY MULTI outdoor unit (except the S Series).

Input voltage *Note: While the power to the connected outdoor unit is turned off, the

G-50A cannot perform a schedule operation, collect charge

data, or perform energy save control.

DC12V, 0.2A (Maximum loading)

Power is received from the PAC-SC50KUA Power Supply Unit via the DC power line.

Operating 0˚C ~ +40˚C / 32˚F ~ +104˚F

Temperature Non operating – 20˚C ~ +60˚C / – 4˚F ~ +140˚F

Humidity 30 ~ 90%RH (No condensation)

mm 120 (H) × 300 (W) × 80 [*19] (D)

in 4-3/4 (H) × 11-13/16 (W) × 3-1/8 [*3/4] (D)

kg 1.0

lb 2-1/4

Indoor unit or independent OA processing unit or LOSSNAY

: 50 units maximum (50 groups maximum)*3

Number of units (indoor or independent OA processing unit or LOSSNAY) in one group

: 1-16 units

*Note Indoor unit, independent OA processing unit and LOSSNAY can not regis-

ter to the same group.

Number of remote controllers in one group

: 1-2

Number of system controllers in one group

: 0-4 (including the number of remote controller in one group)

: 0-3 for groups which have one remote controller.

Number of indoor units interlocked with one OA processing unit or LOSSNAY

: 0-16 (some types of OA processing unit can only be operated when inter-

locked to a maximum of 9 units)

The ON/OFF operation can be performed as a collective or per group.

The switch operation for the operation mode setting can be performed as a collective or

per group.

[Selectable operation mode for the indoor unit]

COOL/DRY/FAN/AUTO/HEAT

[Selectable operation mode for the independent ventilation]

HEAT RECOVERY/BY-PASS/AUTO

The switch operation to set the High and Low speed can be performed as a collective or

per group.

(The 4 fan speed setting is available to the indoor that has 4 levels)

(Fan speed is settable to AUTO on the indoor units that support that setting via G-50A of

ver. 3.10 or later.)

The air flow direction can be switched to 4 directions and swing operation as a collec-

tive or per group.

(Airflow setting can be switched to "5 directions" or to "AUTO" on the indoor units that

support those settings via G-50A of ver. 3.10 or later.)

Temperature setting can be performed collectively or per group.

[Setting temperature range]

Cool (Dry) operation : 19 ~ 30˚C / 67 ~ 87˚F

Heat operation : 17 ~ 28˚C / 63 ~ 83˚F

Auto operation : 19 ~ 28˚C / 67 ~ 83˚F

3. Functions

3 - 1 Specifications

*[ ]: indicate the thickness from

the wall.

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– 5 –

Item

Prohibit local

remote

control

Timer

operation

Operation Filter sign

reset

Ventilation

operation *1

Collective

operation

Each group

operation

Operation

mode

Fan speed

Air direction

Temperature

setting

Timer

operation

Filter sign

Monitor Local remote

control

prohibition

Ventilation

operation

Room

temperature

display

Central control

prohibition

External

input signal

condition

Malfunction

Current time

back-up

Other Timer setting

Specification

The specific functions of a local remote controller can be prohibited as a collective or

per group.

[Prohibit function]

ON/OFF operation, Operation mode setting, Temperature setting and Filter sign

reset operation.

The set schedule operations can be switched to ON/OFF (local remote controller opera-

tion prohibition/permission) for each group.

The filter sign reset operation after the air filters are cleaned can be performed as a

collective or per group.

The ventilation operation of the interlocked OA processing unit or LOSSNAY can be

collective or per group.

[Ventilation operation]

Low speed/High speed/Ventilation OFF

The overall status lamp displays conditions of the collective statues.

Each group operation is displayed on the operation setting screen (group) or opera-

tion monitor screen.

Displayed on the operation setting screen (group).

The unit address and error code are displayed on the malfunction monitor screen

when a malfunction occurs.

When the power is cut off, the current time is backed up for approximately one week.

(When the controller is fully charged. The controller is fully charged by twenty-four

hours after power feed.)

Operation pattern setting can be performed.

• Operation interval: Minimum 10 minutes

• The daily operation pattern and weekly schedule for each group can be set.

• A pattern of one day: P1/P2/P3/ / / / / -

* ON/OFF setting up to three times a day are possible for P1/P2/P3.

*enables to set operation prohibition of 3 times per day for the remote controller.

*/ / implement the schedule which has combined P1/P2/P3 of ON/OFF

pattern and of remote controller operation prohibition pattern together.

(= P1 + / = P2 + / = P3 + is displayed.)

* - is a day without timer operation.

• "The reference temperature and set-back value" or "Setting temperature" which are

linked with timer operation can be set.

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– 6 –

Item

Group name

designation

External

Other signal input

interface

External

signal output

interface

Connecting Group setting

information

setting Interlocked

setting

Malfunction

Monitor history

Refrigerant

system monitor

User setting

Main system

controller/

Sub system

controller

setting *2

Other Prohibition

setting enable

/disable

The prohibited

controller

range setting

K-control

type

Specification

Group name can be specified and display on the operation setting screen.

* Group name setting is need at the initial setting.

Emergency stop/normal, ON/OFF, prohibit/permit for local remote operation can be con-

trolled for units being controlled with a non-voltage contact signal input from an external

source.

When one or more units being controlled are operating, the "ON" signal will be output,

and if a malfunction occurs in one or more units, the "malfunction" signal will be output.

The group setting operation for units (indoor units local remote controllers, independent

OA processing unit, LOSSNAY and sub system controllers) are performed on the group

setting screen.

The interlocked setting for the ventilation equipment as the OA processing unit or

LOSSNAY, etc to indoor unit is performed on the interlocked setting screen.

A maximum of the 64 most recent malfunction are displayed on the malfunction log

monitor.

The connected unit address are displayed on the refrigerant monitor screen.

Some of the indication and function that appear on the each screen can be specified to

match the needs of the user.

Main/Sub setting of the system controller.

* G-50A does not support sub controllers.

The setting of a system controller which the local remote control is prohibition enable

or disable.

Selecting of the prohibited controller which is only local remote controller or both local

remote controller and the other system controller.

The system composed of K-control type air conditioner equipment can be controlled

using the K transmission converter (PAC-SC25KAA).

Initial setting (for installation and maintenance)

*1 Each operation is available in accordance with the function of unit.

*2 Main system controller and sub system controller.

When G-50A controls another system controller or when

the system contains only G-50A:

G-50A is set as the main system controller.

* G-50A performs the group setting in this configuration.

When G-50A is controlled by another system controller:

(Example: MJ-300Gateway)

G-50A is set as the sub system controller.

* The group setting is performed by main system control-

ler.

*3 The number of connectible units may be fewer depending on the indoor unit models.

* G-50A does not

support sub

controllers.

G-50A

management range

Another system controller

management range

Unit

M-NET Gateway

management range

Management range

of G-50A

Unit

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– 7 –

NOTE:

The following group setting cannot be performed.

• Unit groups which are not under the management of the main controller and are managed by the sub system

controller.

• A common group is managed by more than two main controllers.

• A sub system controller which exceeds the management range of the main system controller of two or more.

Main system

controller

Sub system

controller

Group Group Group

Main system

controller 1

Main system

controller 2

Group Group Group

Main system

controller 1

Main system

controller 2

Sub system

controller

Group Group Group Group

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– 8 –

Display

P 4

G-50A

001

PROHI

BITED

01 02

ENTER

BACK

7 F

8 I

1 OPERATION MONITOR

2 OPERATION SETTING

3 SCHEDULE SETTING

4 MALFUNCTION

MONITOR

5 CURRENT TIME

SETTING

1 GROUP SETTING

2 INTERLOCKED

SETTING

3 REFRIGERANT

MONITOR

4 MALFUNCTION

MONITOR

5 USER SETTING

04-2002 MON

( D A Y - M O N T H - Y E A R )

3 - 2 Display Screen Overall status lamp

The lamp indicates the unit opera-

tion condition.

ON......During operation

OFF......All group are stopping

BLINKING......Malfunction

Operation setting function

Each operation and monitor of unit is

performed in collective or group unit.

Refer to section "4. User operation

(page 10)" for the detail of operation

methods.

NOTE: The temperature setting

includes a function to switch the

display between Celsius (˚C) or

Fahrenheit (˚F) (page 34).

Operation monitor function

ON/OFF operation and monitor of unit

are performed. Refer to section "4.

User operation (page 10)" for the

detail of operation methods.

User operation function

User operation menu

Continuously press

and

(2 seconds or longer)

Initial setting menu (Installation/Maintenance)

Timer setting function

The weekly schedule setting is

performed in group units.

Refer to section "4-3 Timer

operation (page 19)" for the

detail of operation methods.

Function when the timer operates

Malfunction monitor function

The unit address, error code

and the unit address which

detected the malfunction are

displayed when a malfunction

occurs.

Refer to section "4-4 Malfunc-

tion (page 23)"

Function when the unit malfunction

Current time setting

The current time setting can be

performed.

Refer to section "4-5 Current

time setting (page 24)" for the

detail of operation methods.

Function when the current time

Group setting function

This performs the same group

setting of the indoor unit, local

remote controller and sub

system controller, etc.

Refer to section "5. Initial

setting (page 25)" for detail of

operations.

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–9 –

G-50A

ENTER

POWER

GND

12VDC

91 CN2

51 CN1RS232C

Ethernet

ABS

M-NET

BACK

6 ADDRESS SETTING

7 FUNCTION SETTING

8 IP ADDRESS SETTING

VER.

ADDRESS SETTING FUNCTION SETTING IP ADDRESS SETTING

IP ADDRESS:

SUBNET MASK:

192.168.001.001

255.255.255.000

12345 678

OFF

M-NET ADDRESS: 000

16-04-2002

014 6602

12 : 45

(DETECT 014)

05-04-2002

2002

012 6607

09 : 12

(DETECT 012)

GROUP NO

NONE

INDICATE

1-1-2001

NONE

7 TEMP. UNIT ˚C/ ˚F

The collective operation switch can be performed in the user setting mode for any screen.

(Excluding menu screen)

LAN changeover switch

Refer to section "5. Initial setting (page 25)" for

explanation of the operation of these switches.

LCD contrast adjustment knob

Collective operation switch

If this switch is pressed during the

operation, a whole group stop is

performed.

LAN status lamp

Orange LED indicates action and green LED indicates link.

Service LAN connector

Refer to section "5. Initial setting" for an explanation of this connector.

Rear side

Operation

panel M-NET Transmission

line terminal

LAN (Ethernet) connector

RS-232C connector

External input/output interface connector

Refer to section "7. External input/output

function (page 38)" for the detail of op-

eration of these connectors.

DC power supply terminator

M-NET address setting

Display, or sets, the controller M-

NET address.

Refer to section "5. Initial setting

(page 25)" for a detailed expla-

nation of operation.

Function select setting

Sets the function of the controller.

Refer to section "5. Initial setting

(page 25)" for a detailed expla-

nation of operation.

IP address setting

Sets the LAN IP address.

Refer to section "5. Initial setting

(page 25)" for a detailed expla-

nation of operation.

Required function for initial settings

Interlocked setting function

This function sets either single or

multiple indoor units, the

LOSSNAY or any other OA

processing unit that interlocking

operates, as units in the same

operation.

Refer to section "5. Initial settings

(page 25)" for detail of operations.

Required function for initial settings

User setting function

The function selections of the dis-

play method and timer settings that

is displayed on the screen.

Refer to section "5. Initial settings

(page 25)" for detail of operation.

Refrigerant monitor function

The unit addresses are displayed

for each refrigerant.

Refer to section "6. Maintenance

(page 36)" for detail of operation.

Malfunction log monitor

A malfunction logging which can

store a maximum of 64 items that

can be monitored.

Refer to section "6. Maintenance

(page 36)" for detail of operation.

Start-up and maintenance functions

WT03945X02_En_P01-35 07.3.23, 8:12 PM9

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