Mitsubishi G-50A Sales Manual

Mitsubishi A ir Conditioning Management System

Centralized Controller

G-50A

Sales Manual

CONTENTS

1. Appearance, basic functions and characteristics of G-50A

2. Examples of G-50A utilization

3. G-50A controlled air conditioners; specification; external dimension; description of control

4. Special considerations about the use of G-50A, due to its difference from conventional models, and the concept of the upper class and lower class

5. System examples for G-50A stand-alone application, equipment address setting and power supply

6. External Input / Output functions

7. System pattern at Monitoring/controlling with PC

8. Outline and difference of G-50A integrated software TG 2000A and web browser (Internet explorer)

9. System composition and address setting for connecting G-50A+ PC monitoring / controlling (include K- and A-control)

10. Air Conditioner operation control by Web browser (Internet Explorer)

11. Operation management by TG-2000A (integrated software of G-50A)

12. Basic set-up procedures for integrated software TG-2000A

13. Calculation of Air-conditioning energy charging

14. System design flow and test run of Air-conditioning energy charging

15. Check sheet of information on system registration of Air-conditioning energy charging

16. Outline of energy saving / peak cut control

17. Restrictions on wiring for LAN

18. License registration of optional functions

19. Method for initial registration on G-50A’s own and on PC monitoring with initial setting tool

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･･･････････････････････････････････････････

･･･････････････････････････････････

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2 3 4

9 12 13 14

16 19 25 26 31 33 34 36 38 39

1. Appearance, basic functions and characteristics of G-50A

(1) Appearance and functionality

This controller has higher functionality than any previous centralized controllers, and this product is the first in the industry to support the web. One G-50A unit can control and monitor up to 50 indoor units. This controller can be controlled and operated by browser software (Internet Explorer ver. 5 or above) from a PC connected via LAN or telephone lines. Other than the basic operation of the packaged air conditioners, it can support various functi ons required for air condit ioni ng controlling such as “Annual schedule operation” “Air-conditioning energy

(2) Basic Functions Appearance G-50A unit

Major functions

Operation and setting of the ai r conditions

Operation status (ON/OFF)

Monitor air conditioners

Scheduling function External input/ output is possi ble

ON/OFF Operation mode change Temperature setting Air velocity change Airflow direction setting

Operation mode monitor Temperature monitor Failure monitor Air velocity change Airflow direction change

Weekly schedule operation possible ON/OFF and abnormal conditions can be output

to outside; emergency stop and ON/OFF can be input from outside.

(3) Characteristics

1) Besides the monitor/control fro m th e G-50A unit, remote monito r/ control from a PC is also possib le.

requires input of a separate license number.)

This has a web server function, and the operation control can be made from a PC connected through LAN or public phone lines. Using a PC browser (Internet Explorer Ver.5 or above), you can easily build a centralized monitor system for air conditioners. You can confirm the operation status and make sure the power is off without walking to the remote controller location or patrolling to the far away sites. This means you can improve the efficiency of air conditi oning control work and save energy through a thorough operation control.

2) You can control up to 2000 indoor units using special integrated software.

license number.)

(This is an optional function and requires i nput of a separate

If you use G-50A special integrated software (PAC-TG2000A), you can consolidate data from all the G-50A units, and control the operation of up to 2000 units from a PC. Furthermore, floor plans can be drawn, and operation status can be indicated for each floor or for eac h tenant.

3) Annual schedule management is possible.

The standard functions include a weekly schedule funct ion, but you can als o register annual sc hedule on a PC as an option, and you can have 7 different patterns for days of the week, plus 5 patterns of schedule can be set on 50 special days per year. B y having thorough control, you can achieve a tremendous energy-saving, unmanned operation on a day-to-day basis, and automatic operat ion of air conditioning. * Once a license for annual schedule is registered, G-50A unit cannot set a schedule. It has to be set and registered only on PC.

4) Electric power apportionment information can be obtained to calculate air conditioning charge for each area.

(Optional function. A separate license number has to be input.) Using electric power apportionment f unction (optional), you can enter the elect ric power apportionment data for each indoor uni t into a PC in CSV format. By manually inputting the total power usage, cus tomer can have a simplified power usage count for each tenant. * The air conditioning cost calculati on method use by this integrat ed centrali zed control software TG-2000A is the Mitsubishi proprietary general

electric power apportioning method.

charges cannot be used for certificate of transaction

5) With the addition of the designated sequencer and electric energy count software, air conditioning charge can be automatically calculated.

(This is an optional function and requires input of a separate license number.) In addition to the system desc ribed above, if you add a sequencer (MESLEC-Q series) and power usage count s oftware (optional), you can have power usage reading from the watt hour meter or electric power count by PC direct connect (RS-485WHM). Based on that information and G-50A integrated software (TG-2000A), you can calculate the power usage count per tenant. * The air conditioning cost calculati on method use by this integrat ed centrali zed control software TG-2000A is the Mitsubishi proprietary general

electric power apportioning method.

charges cannot be used for certificate of transaction.

6) Energy-saving operation mode will help reduce the power consumption without harming the comfort.

and requires input of a separate license number.) Energy-saving operation mode (optional) will enable rotated fan operation and heating/cooling power save operat ion. Energy can be saved in a way to meet the cust omer’s demand. * With this function, air in-take temperature and room temperature setting will be considered, and the room temperature setting will be shifted to

a higher side during cooling period and to a lower side during heating period at a fixed time interval. For instance, if the air intake temperature is set at 24°C and the room temperature sett ing is 22°C for air condit ioning, the room temperature s etti ng will be altered to 24°C. If the air intake temperature is 28°C and room temperature setting is 22°C, there will be no change.

In case of abnormality, a mail will be sent to cell phones or PCs.

If there is something wrong with the air condi ti oning uni t, t he abnormalit y will be notified to the designated mail address. You can be notified of the abnormality wherever you are, and take nec essary actions to recover the system quickly.

(This is an optional function and

Depending on each country’s laws and regulations, etc., there may be cases these measured

charging” “Energy-saving operation”, by adding optional functions.

Software for PC monitor/control and necessi ty of license certification

Browser software

Monitor and control by PC

Annual scheduling function

Air-conditioning energy charging

Energy saving operation function

* License certification : License registration is required to use the

Remote control from

Web browser

Public circuit Router

ir conditioning

management

(This is an optional function and requires input of a separate license number.)

(This is an optional function and requires input of a s eparate licens e num ber.)

(PC software)

Internet Explorer Ver.5 ~

TG2000A (optional product)

Internet Explorer Ver.5 ~

TG2000A (optional product)

optional function ( to be charged).

Watt-hour meter

(This is an optional function

License

certification

Necessary

Necessary Necessary

City Multi

- 2 -

2. Examples of G-50A utilization

Bill

•

(1) Make the control work more efficient by remote control and

operation.

1) While you are at your desk doing paper work, you can monitor and control

air conditioners from a PC on your desk.

2) When you leave the office for the day, you don’t have to check every

remote controller to make sure the power is off. ON/OFF operation can be made collectively from a PC.

3) You can monitor and control air conditioners in remote buildings (via LAN

or public phone lines).

4) If you take a lap top PC and PHS with you, you can monitor and control

the system away from your office.

5) You can prohibit ON/OFF operation, temperature setting change, and

operation mode change by local remote controllers.

(2) Energy saving is possible through annually schedule operation

1) By adding optional functions, you can have extended weekly schedule

operation and annual schedule operation. (You have to specially register the setting in a PC.)

2) Besides ON/OFF operation, you can schedule operation mode and

temperature settings by the unit of minutes.

3) Prohibition of ON/OFF operation, temperature setting change, and

operation mode change can be set to the mi nute so that you can control temperature settings well and never forget to turn off the switch.

Example 1:

ON/OFF switch can be prohibited during night, making the air conditioning unit inoperable during night.

Example 2:

Fix the room temperature at 25°C for air conditioning during the intermediate season.

Example 3:

Energy-saving operation is possibl e by making the unit i noperable during lunch break or setting the room temperature on a higher si de and fixing it.

4) Shops and stores can have air conditioning operation adjusted by

pre-setting the room temperature depending on the estimated turnout of visitors for the day.

5) The day’s schedule can be adj usted each day, and air-conditioning in a

meeting room can start /stop at a pre-set time.

(3) Air conditioning charge data can be freely processed on a

PC.

1) Air condi tioning charge can be calculated as an option.

2) Air conditioning charge data can be edited and proces sed on a PC.

3) If you build a PC network, you can get the electric power apportioned

charge data from a remote location and the transaction can be made without human intervention such as transferring or posting data.

4) If t he electric power apportionment function is used, you can confirm the

integrated running time of each air conditioning unit.

(4) With the existing air conditioners, energy saving can be

accomplished

1) Energy saving operation will enable energy saving easily.

(5) By eliminating the use of local remote controllers, the

interior aesthetics will be enhanced.

1) If you are bothered by the design of a remote controller or wiring in the

room, you can get rid of them.

2) In a lobby or a place with high traffic, or if you don’t want students or

patients to handle a remote controller in a class room or in a hospital, you can eliminate us e of a local remote controller.

(6) Various interlock operation is possible using a sequencer.

1) With an interlock to “key lock” and “human thermal sensor” as an

energy-saving measure, you can stop the operation of an ai r conditioning unit when the room is locked or there is nobody inside.

2) Detecting the upper limit and lower limit of the local humidity sensor or

temperature sensor, cooling/heating and dry operation can be activated or stopped.

(7) Notice of error code via mail at malfunction

1) In case of a machine trouble, the unit number with t he faulty operation

and the code number for the trouble will be sent by email. Since the type of trouble can be promptly communicated and the spare parts can be arranged in advance, a swift recovery will be possible.

In case of “Mr. Slim”, the code will be displayed on G-50A in 4 digits. Basically they are same as Building Multi, but there is one code unique to Mr. Slim, that is “68**” for a Mr. Slim indoor/outdoor unit communication error.

G-50

G-50A G-50A

G-50A

License registration

(No)

License registration

(Y es)

If the annual schedule lic ense is regi s tered , the stand ar d weekl y schedule function on the main unit will become inoperable.

G-50A unit

Weeks

Weekly/

Extended weekly/annual schedule example

G-50

Case: 2

Remote controllers need to be avoided or concealed in high-traffic areas such as building lobbies.

G-50

Office

Coffee Shop

ir conditioners of different outlets are constantly monitored. Reports are provided

to the designated e-mail addresses in the event of troubles.

•

Quick restoration is possible thanks to the ability to understand the nature of troubles

early.

(G-50A provides a billing system in each building)

Maintenance Company

G-50A

G-50AG-50A

Case: 1

Remote controllers and

ires can be destructive to interior design.

Shop

G-50A

On the

web

annual

TG-2000A

Weekly/

annual

The optional software can store electricity billing data c a lc ulated for each tenant. All I have to do is retrieve the data into spreadsheet software and process into bills. It is very convenient and efficient.

Case: 3

Remote controller groupings and locations are subject to frequent change in locations such as tenant buildings

I can check the nature of troubles without asking customers. It is convenient.

- 3 -

3. G-50A controlled air conditioners; specification; external dimension; description of control

(1) G-50A controlled air conditioners

Type (the series name)

CITY MULTI CITY MUL TI Super Big Y Series (24~30HP) CITY MULTI CITY MULTI CITY MULTI CITY MULTI Mr. Slim Series (A-control) *3 Split Type Air Conditioner (A-control) x K-Control Series *2 Lossnay (GUF Series : OA processing Units) (Incase it’s set as an indoor unit) Lossnay (LGH Series)

*1 Pump and cooling tower power supply cannot have apportioned charge. However, a watt-hour meter may be mounted to each billing unit for

*2 Due to K-control type, individual items cannot be prohibited or permitted. It also requires K-control converter. *3 Requires A-cont rol adapter.

(2) G-50A unit specification

Product dimensi on 300mm(width) x 120mm(height) x 79mm(depth) * Thickness of the exposed sect ion is 22mm. Weight 1.0 kg Power source DC24V, 12V * Power is fed from a power supply unit for transmission lines. Rated current consumption 0.2A Rated power consumption 6W CPU ROM 14M bytes (flash memory) RAM 16M bytes (SDRAM) Display Liquid crystal 128 x 160 dots Batch ON/OFF LED x 1 Network M-NET , Ethernet (10BASE-T), external output/input terminals (input 4, output 2, A relay up to 0.9W can be connected.)

(3) G-50A Exterior view

Y Series (8~20HP)

R2 Series (8~20HP) WR2 Series (8, 10HP) WY Series (8, 10HP) S Series

solution.

Item Description

Control/

management

Electric power apportioned charge

(Electric energy pulse count)

(Each billing unit needs a w att hour meter inst alled.)

(Each billing unit needs a watt hour m eter installed.)

Energy-saving control (Energy-saving control items)

Fan speed

x x x

Room temperature

setting

±2°

C (60~90%)

±2°

C (60~90%)

±2°

C (60~90%)

±2°

C (60~90%)

±2°C (60~90%)

±2°

±2°C x

Capacity saving

G-50A

Mounting plate

- 4 -

(4)

G-50A unit control functions

Function

No. of manageable units

Standard functions

Initial setting functions

Others

Operation

Monitor

Control

Monitor

System

Data backup

Indoor units and Lossnay No. of indoor units in one group

No. of remote controllers in one group 0 ~ 2 sets System controllers in one group

Interlocked units

Power ON/OFF

Operation mode

Air velocity

Room temperature setting

Airflow direction setting

ON/OFF of interlocked units (Lossnay)

Prohibition of control from local remote controllers

Timer operation

Filter sign reset Filter sign display reset can be done for all or group of units collectively. External input

ON/OFF (batch)

Operation status per group

Filter sign Filter cleaning sign will indicate the timing of cleaning for each group Prohibit local control The content of the prohibition by this unit or another unit will be displayed.

Trouble occurrence

External output

Group setting

Interlocking setting Indoor unit as an interlocking unit will be registered in an interlocked u nit (Lossnay). Trouble history monitor

Refrigerant system monitor For each outdoor unit, actually connected indoor units can be confirmed. Transmission and reception of prohibition

Prohibition transmission target

Connection /interlocking information Trouble history It would not be lost even when the power is off. Timer operation The schedule information for each group will not be lost even when the power is off.

Current time

Up to 50 sets can be connected. (including interlocked units) 1~16 sets (Same for Lossnay with no inte rlocking. Ho wever, you cannot have both indo or units and Lossnay in the same group.)

0 ~ 4 sets (Total number of remote contr ollers and system cont rollers in one gro up sh ould not exceed 4.)

•

Number of inte rlocked u nits (Loss nay) conn ected to one int erlock ing unit (indoor unit) i s

•

Number of interlock ing units (indo or units) that c an be regist ered in one int erlocked u nit

(Lossnay) is 16. All or group of units can be turned ON/OFF collectively. Operation mode can be switched between cooling/dry/heating/fan/automatic for all or group of units collectively. (If the group has only L ossnay’s, hea t exchan ge/normal /automati c in ventil ation mo de can be switched over.) A 4-step change can be m ade fo r a g roup o r all of uni ts coll ectiv el y. (Certain models ha ve only 2 or 3 steps.) Room temperature can be set collectively for all or group of units. (The room temperature range varies depending on the type of units to be connected.)

Temperature range 19ºC ~ 30ºC 17ºC ~ 28ºC 19ºC ~ 28ºC The airflow di rection can be changed among 4 di fferent vert ical dir ections a nd swings f or all or group of units c ol l ect i vely. (The available airflow directions can be di ffe rent depending on the model.) In case there is a n i nterlocked unit (Lossnay), ON (high or low) and OFF switchover can be made for all or gro up of units collectivel y. (However, an interlocked unit ca nnot select a ventilation mode.) You can choose and set some items that cannot be controlled from the local remote controllers for all or group of units collectiv ely. (S uch items include ON/OFF, operation mode, room temperature, and filter sign.) A weekly schedule operation can be made for a group of units.

•

4 types of op eration patterns (P1 – P4) can be set weekly. (P4 is the prohibi t i on of control

from the local remote controller.)

•

ON/OFF can be set 3 times per day.

•

Room temperature setting and setback operation can be interlocked to the timer operation.

Emergency stop, ON/OFF, prohibit/pe rm it can b e set from outsid e coll ecti vely. (A separate external input/output adaptor is needed.) A batch ON/OFF lamp will indicate one or more group is running or the entire group has stopped. ON/OFF, operation mode, air vel oci ty, room temp erat ure set ti ng, ai rf lo w di rect ion, ON/ OFF of interlocked units, time operation valid/invalid will be indicated for each group.

Address of the unit having trouble and its error code, and address of the unit whose trouble has been detected will be displayed. Batch ON/OFF and an y abnorm alit y signal s can be output to ou tside. (A separate e xternal input/output adaptor is needed.) Indoor units, Lossnay, remote controllers and lower class system controllers will be grouped together and registered.

Up to 64 past troubles will be stored in the memory. (The newest trouble is on top of the list, totaling to 64 of them in a chronological order)

In case operati on by a local remote controller is to be prohibited, whet her it should be commanded from the main unit or from another controller will be determined. In case of an operation prohi bi t, whether it shoul d be only for a l oc al remote control l er, or i t should include other controllers will be determined. Grouping information and interlock setting information will not be lost even when the power is off.

Even when the power is off, the time clock will be run by the internal condenser for about one week. (Recharging the internal condenser will take about one day. Battery replacement is not necessary.)

Cooling Heating Automatic

Description

- 5 -

4. Special considerations about the use of G-50A, due to its difference from conventional models, and the concept of the upper class and lower class

(1) Special considerations about the use of G-50A, due to its difference from conventional models

1) A group of indoor units cannot be controlled by more than two G-50A units. You cannot have multiple connections of

G-50A within the same group.

→

If you want to have 2 separate centralized control within the same group, use one G-50A and one system remote controller, or something equivalent. (The reason is described below in the concept of upper class and lower class.)

2) G-50A cannot be used together with the system controller like MJ-300 that are higher in class than G-50A.

(2) The concept of upper class and lower class pertaining to G-50A

*Upper class system controller and lower class system controller This unit (G-50A) always functions as an upper class system controller. It can not be treated as a lower class system controller.

•

Upper class system controller (upper class SC)

A system controller that encompasses the control scope of all other system controllers is called “upper class system controller”. Also, if there is only one controller in the entire system, that controller becomes the upper class system controller. Only the upper class system controller needs to have a group setting and interlocking operation setting.

•

Lower class system controller (lower class SC)

A controller whose entire control area is controlled by an upper class system controller is called a lower class system controller.

The following group settings cannot be made.

•

A group outside the control of the upper class system controller is controlled by a lower class controller.

•

Two or more system controllers control the same group of units.

Therefore, G-50A always has to be an upper class system controller.

G-50A can never be used as a lower class system controller.

Control scope o

upper class SC

Control scope of

lower class SC

Group Group

Upper class

system controller

Upper class

system controller 1

Group

This unit is for upper class SC use only. It cannot be used as a lower class SC and controlled by upper class SC (gateway and others).

GroupGroup Group

Lower class

system controller

Upper class

system controller 2

- 6 -

5. System configuration examples for G-50A stand-alone application, equipment



-50A



-50A



address setting and power supply

(1) G-50A stand alone system configuration (no connection to PC, monitor and operation to be done by G-50A unit)

(Example 1) When air conditioners and Lossnay are mixed in the system

K-control

transmission

converter



211

PAC-SC25KAA

-control

outdoor unit

TB7 TB3

M-NET

outdoor unit



057

TB7 TB3

Group 11

11

(Group number)

BC controlle



058

Group 13



007

Group 3



13 (Group number)

008



Numbers in

Group 4

LossnayLossna

009



Indoor unit Local remote controller

M-NET type : PAR-F27ME(A) PAC-SE51CR(A) PZ-52SF/52KF2(LR) MA type : PAR-20MA(A) PAR-FA(FL)31MA M-NET transmission line K-control transmission line MA type remote control line

 show address numbers.

010



Centralized control system

M-NET

outdoor unit



051

TB7 TB3



LAN

000

Centralized controlle

Model G

(Example 2) When only Lossnay are in the system

Transmission line power supply extension unit (option)



LAN

000

Centralized controller

Model G

Model PAC-SF46EPA

Indoor/outdoor

system

Group 1 Group 2



001

 

ME ME ME

Power supply unit for transmission lines (option) Model PAC-SC50KUA

er supply unit for transmission lines (option)

Po Model PAC-SC50KUA

106

002

 

LossnayLossna

001

003

Group 1



002

Lossnay remote controller



101

 



109

Lossnay remote controller

004

 

005

 

Group 2

Lossna

003



Lossnay remote

controller



Lossna

004

103

006



Lossna



Power supply lines are omitted from this diagram, showing only the transmission lines. This shield for M-NET centralized system transmission lines should be grounded at a single point through the transmissi on line power supply unit. Indoor/outdoor transmission lines should be grounded for each outdoor unit system. M-NET outdoor unit centralized control switch (SW2-1) should be always “ON”.

(2) Address setting for equipment

Address setting method Address Indoor unit Outdoor unit Take the lowest number of indoor unit address within the same refrigerant system and add 50 to it. 51 ~ 100

Outdoor auxiliary un it (BC controller, etc.) Lossnay After all the indoor units are given the address, choose any number as address. 1 ~ 50

M-NET remote controller

MA type remote controller

K-control indoor unit K-control remote

controller K-transmission converter The lowest number of the K-control indoor unit + 200 should be used as address. 201 ~ 250

The lowest numb er should be given to the indoor uni t functioning as t he parent unit withi n the same group. Give the serial numbers to the indoor units in the same group.

Take the address of the outdoor unit within the refrigerant system and add 1 to it.

Take the lowest number of indoor unit (parent unit) add ress in the same group a nd add 100 t o it. Howeve r, in case of a subordinate remote controller, add 150 to it. Address settin g is not nec essar y. In case of 2 r emot e co ntr oll er op erat io n, ho wever, main/s ub or dina te s witc hi ng setting is necessary. After all the M- NET indoor units (inclu ding L ossna y) are ass igne d a num ber, the next num ber s hould be set for K-control indoor units. Take the lowest number given to t he K-control indoor unit ( parent unit) in the same grou p, and use the s ame address.

1 ~ 50

52 ~ 100

101 ~ 200

−

1 ~ 50

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(3) G-50A power supply

1) In case a transmission line power supply unit is used. (connected to centralized control transmission lines)

Transmission line power

supply unit

PAC-SC50KUA

Maximum number of G-50A

connection in one system

1 set

2 sets

Remarks

Other system controllers (PAC-YT40ANRA, etc.) cannot be connected to centralized control system transmission lines on the outdoor unit TB7 side. In such a case, the controller should be connected to indoor/outdoor system transmission lines .

•

W hen only one G-50A is connected.

Up t o 3 other system controll ers can be connected to the cent ralized

control system transmission lines.

•

W hen 2 of G-50A are connected.

(When the system of 50 or less indoor units is divided into two

groups, and each is controlled by G-50A .)

Only one other system controller can be connected to the centralized

control system transmission lines.

2) Points to notice when connecting to indoor/outdoor transmission lines

•

The system controllers that can be connected to indoor/outdoor transmission lines are: G-50A, MJ-103MTR-A, PAC-YT34STA,

PAC-SF44SRA, PAC-SC30GRA. However, the outdoor unit City Multi S <PUMY-P Series> cannot have a system controller connected to indoor/outdoor transmission lines. Also, in case connecting a system controller to indoor/outdoor transmission lines, the system controller becomes unable to control once the outdoor unit power supply is shut off. Please give enough precaution to that point. In case you use the electric power apportioned charging ("Air Con Electricity Charge") function, as an option to the centralized controller G-50A, do not connect G-50A to indoor/outdoor transmission lines.

•

Up to 3 system controllers can be connected within the same refrigerant system, and only one G-50A unit can be one of those

3. In that case, the number of connectable indoor units will be 4 less. If other system controllers are used, the number of maximum connection per group will be 2 less per system controller.

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6. External I/O functions

X2Y

External I/O functions

Using an external I/O adapter (PAC-YG10HAA), you can send contact signals and pulse signals to control a batch ON/OFF of air conditioners connected to G-50A.

(1) External input

Using energized contact signals (DC12V or DC24V) from outside, it can operate emergency stop/normal, ON/OFF, prohibit/permit of local remote controllers for all the air conditioners under its control.

No External input signal f unctions

1 External input signals not to be used (default

at shipment) Emergency stop/normal will be executed by

level signals.

3 ON/OFF will be executed by level signals. 4 ON/ OFF and prohibit/permit will be executed

by pulse signals.

(2) Level signals and pulse signals

(A) Level Signals (B) Pulse signals Example: case of ON/OFF

Contact ON Contact OFF

(3) External input specification

CN2 Lead wire Emergency s top/normal level signals ON/OFF level signals ON/OFF, prohibit/permit pulse signals No.5 Orange Emergency stop/normal input ON/OFF input On input No.6 Yellow Not used not used Off input No.7 Blue Not used not used Local remote controller prohibit input No.8 Gray Not used not used Local remote controller permit input No.9 Red External DC power source +12V or +24V

A) Level signals

1) When emergency stop/normal signal is selected, and the external input signal contact changes from “OFF” to “ON”, “normal” changes to “emergency stop”. W hen the contact changes from “ON” to “OFF”, “emergency stop” changes to “normal”.

2) When ON/OFF signal is selected, and the external input signal contact changes from “OFF” to “ON”, the operation mode changes from “OFF” to “ON”. W hen the contact changes from “ON” to “OFF”, the operation mode changes from “ON” to “OFF”.

(B) Pulse signals

1) While the machine is running, if “ON” signal is input, it remains “ON”. (Same for stop, prohibit, and permit.)

2) W hen a local remote controller is prohibited, it prohibits the operation of ON/OFF, operation mode, room temperature setting, and filter reset by a local remote controller.

3) Pulse width (time duration while the contact is on) should be 0.5 ~ 1 second.

(4) Recommended circuit example

(A) Level signals (B) Pulse signals

CN22

OFF ON OFF

Normal Normal

Emergency

stop

Red

Orange

5 6 7 8

G-50A(CN2)

G-50 (CN2)

Function setting switch

No. 6 No. 7

OFF OFF

OFF

ON OFF ON ON

ON/OFF, or emergency stop

Power supply (*1) (DC12V or DC24V)

Connector of external I/O adapter (PAC-YG 1 0HAA) To be connected to G-50A (CN2)

During emergency stop, ON/OFF by a local remote controller, and ON/OFF and prohibit/permit change by G-50A will be prohibited. ON/OFF by a local remote controller, and ON/OFF and prohibit/permit change by G-50 will be prohibited.

When contact is ON, the pulse width should be 0.5~1 second.

Signal 1 (ON)

Signal 2 (OFF)

Contact ON Contact OFF

* Same for prohibit/permit input

CN22

Red

Orange

Yellow

Blue

Purple

Power supply (*1) (DC12V or DC24V)

1 2

Remarks

0.5~1 sec.

OFF ON OFF

0.5~1 sec.

ON OFF Prohibit Permit

Main

Relays, DC power source, and extension cables should be locally procured separately. Maximum length of the connection cable extension should be 10m. (Use a cable thicker than 0.3mm2.)

Max. 10m

Main

Max. 10m

3) If the cable is too long, cut it to size, and insulate the exposed portion with a tape.

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If [Emergency stop mode (level input)] is selected, a batch stop can be made by level signals. During a batch stop, G-50A and remote controller’s ON/OFF operation will be prohibited.

1 2 3 4 5 6 7 8 9

Emergency stop/Normal

DC12V

Contact ON Contact OFF

Normal Emergency stop Normal

Connected G-50A (CN2)

If [ON/OFF mode (level input)] is selected, a batch on and off can be made by level signals. In this mode, all the air conditioners to be connected to G-50A will always be a batch on or a batch off, and G-50A and remote controller’s ON/OFF operation will be prohibited.

1 2 3 4 5 6 7 8 9

ON/OFF

DC12V

Contact ON Contact OFF

OFF ON OFF

Connected G-50A (CN2)

If [ON/OFF/control prohibit/control permit (pulse input)] is selected, batch on, batch off, local control prohibit, and local control permit can be made by pulse signals. In this mode, a remote controller can control the unit freely, except when the pulse signals are being input.

Connected G-50A (CN2)

1 2 3 4 5 6 7 8 9

DC12V

OFF

Prohibit

Permit

: Pulse oscillator

OFF

Contact ON Contact OFF

OFF ON OFF

0.5~1.0 sec.

Prohibit

Contact ON Contact OFF

0.5~1.0 sec.

Permit

Contact ON Contact OFF

Permit Prohibit Permit

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External output functions

(1) External output

When one or more air conditioning unit is running, ON signal is output; and when one or more air conditioning unit has trouble, “Abnormality generated” is output.

(2) External output specification

CN2 Lead wire Terminal No. 1 Green External output common GND (external DC power supply GND) No. 2 Blac k ON/OFF No. 3 Brown Abnormal/normal

1) “ON” will be output even during an abnormal occurrence.

(3) Recommended circuits example

When relays are activated.

CN2

2 3 4

Main unit

Black

Brown

Green

Max. 10m

Diode (*2)

Powe supply

(*1)

L1: Operation indicator lamp L2: Abnormality indicator lamp

For relays Z1 and Z2, please use parts that conform to following specification.

Control coil

Rated voltage : DC12V, DC24V Power consumption : 0.9W or below (*1) Please arrange a power supply separately, which fits the

relay to be used. (DC12V or DC24V)

(*2) Please make sure you insert diodes on both ends of the

relay coil.

1) While it’s on, abnormal occurrences will turn each element on.

2) The connection cable extension should be 10 m at maximum.

3) Relay, lamps, diode, extension cables should be arranged locally.

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7. System Pattern at Monitoring/Controlling with PC

The monitoring method by a PC (software used) can roughly be classified into two patterns.

Within 1000 indoor units : Pentium 4 1.8GHz or faster 1001 indoor units or over : Pentium 4 1.8GHz or faster (Case of temp. trend use : 2.8GHz or faster)

(1) Monitoring/controlling using Web browser (Internet Explorer) (2) Monitoring/controlling using G-50A integrated software (option)

For the difference of the function, refer to the relating page (Comparison of software). LAN is used to connect G-50A and PC. While remote monitoring can be performed via public telephone line.

System image

(1) Monitoring/controlling using Web browser (Internet Explorer)

Your PC for business use can be utilized as a remote controller.

control screen

Individual remote controller screen

Common use with PC for ordinary business use

Home page

Centralized controller G-50A

(1) Monitoring/controlling using G-50A integrated software (option)

TG-2000A (Optional software exclusive for air conditioning use)

Annual schedule Air conditioning electric

charge calculation Energy saving control

PC for integrated control

TG = Integrated 2000 = Controls indoor units up to 2,000 sets

Monitoring/controlling by Web browser

Dialup

Telephone circuit

router

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Monitoring/controlling by G-50A integrated software

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Mitsubishi G-50A Sales Manual

Specifications and Main Features

Frequently Asked Questions

User Manual