Mitsubishi Electric Central Controller G-50A User manual

Mitsubishi Electric Building Air-conditioner Control System
Central Controller
G-50A/GB-50A Web Browser Operation Manual (For User)
Contents
1 Introduction............................................................................1
1-1 Conventions Used in this Manual..............................................1
1-2 Computer Requirements ...........................................................1
2 Setting the Operating Environment ........................................2
2-1 Setting the PC IP Address.........................................................2
2-2 Setting the Web Browser...........................................................4
3 Performing Operations...........................................................6
3-1 Entering the User Name and the Password, and Connecting to
the G-50A...................................................................................6
3-2 Checking the Operation Condition of the Air Conditioner .........7
3-3 Performing Air Conditioner Operations .....................................9
Before using the web browser to monitor and operate the G-50A controller, please read
this operation manual carefully to ensure correct operation.
Store this operation manual in a location that is easy to find.

1
1 Introduction
A special feature of Mitsubishi Electric Corporation’s “Central Controller G-50A” and "Central Controller
GB-50A" are that a PC connected to a LAN can be used to monitor the operation condition of air conditioners
and perform air conditioner operations.
In this manual, the procedures to monitor the status of and to operate the central controller G-50A and GB-50A
on the Web browser are described.
Hereinafter, the central controller G-50A and GB-50A, unless otherwise specified, will be called "G-50A".
Note: License of "Personal Web" is necessary to operate or monitor the air conditioners. Register the
license on the registration screen.
1-1 Conventions Used in this Manual
- “Click” refers to the action of positioning the mouse cursor on the object (such as button or folder) and
pressing down and releasing the left mouse button once.
- Unless otherwise specified, the example screen images used in this manual are Windows®XP and Internet
Explorer 6.0 screen images.
Note: Windows is a registered trademark or trademark of Microsoft Corporation USA in the United States and other countries.
- The K transmission converter (PAC-SC25KAA) and OA processing unit (LOSSNAY) are not included in
systems shipped to North America (USA & Canada).
1-2 Computer Requirements
In order to monitor and operate air conditioners by web browser, your computer must meet the following
requirements. Table 1-1 Computer Requirements
Item Requirement
CPU Pentium 133MHz or faster (300MHz or faster recommended)
Memory 64M Bytes or more (128M Bytes or more recommended)
Screen resolution 1024 x 768 or higher recommended
Windows
Microsoft® Internet Explorer 5.0 or later
Note: You must have a Java execution environment.
(Microsoft VM Ver5.0 or later or Sun Microsystems Java
Plug-in Ver.1.4.2 or later).
Note: You can check the Microsoft VM version by entering “jview” in a
command prompt.
Note: You can check the Sun Microsystems Java Plug-in version in
“Java Plug-in” in a control panel.
Compatible browser
Macintosh
Safari (with Mac OS X)
Note: You must have a Java execution environment.
(Sun Microsystems Java Plug-in Ver.1.4.2 or later).
You can download from Apple Computer's homepage.
Note: You can check the Sun Microsystems Java Plug-in version at
the [Help]-[Installed Plug-ins] on the Safari browser.
On-board LAN port or LAN card One connector (10BASE-T)
Other Pointing device such as a mouse
Note: Microsoft is a registered trademark or trademark of Microsoft Corporation USA in the United States and other countries.

2
2 Setting the Operating Environment
Given below is an explanation of the PC settings and web browser settings that are required for using a web
browser to monitor air conditioner units and perform operations.
2-1 Setting the PC IP Address
You need to set an IP address on the PC that will enable you to connect to the G-50A using a web browser.
For instance, if the G-50A IP address is [192.168.1.1], the PC IP address will need to belong to the same
system (for example [192.168.1.101]).
If the G-50A is connected to an existing LAN, ask the LAN administrator to decide what PC IP address to use.
Note: When using a G-50A dedicated LAN, we recommend the G-50A main unit be given an IP address within the
range [192.168.1.1] — [192.168.1.40] and the PCs that will be connected to the G-50A be given an IP address
within the range [192.168.1.101] — [192.168.1.150]
(1) Click on [Control Panel] under [Start] to open the Control Panel.
(2) In the Control Panel window, double click [Network and Dial-up
Connections] and the Network and Dial-up Connections window will
open. Double click on [Local Area Setting] and the [Local Area
Connection Status] dialog will open. Click [Properties].
(3) In the [Local Area Connection Properties] dialog, click [Internet
Protocol] to select it and click the [Properties] button.

3
(4) In the [Internet Protocol (TCP/IP) Properties] dialog, click [Use the
following IP address] and enter the IP address (for example,
“192.168.1.101”) that you want to set in the IP address field.
You normally set [255.255.255.0] as the subnet mask.
Note: Ask your LAN administrator to provide the IP addresses and subnet
mask.
(5) Click the [OK] button to close this dialog, and then close the other
open dialogs to complete the network setting.

4
2-2 Setting the Web Browser
Perform the necessary web browser settings to enable the web browser to connect to the G-50A.
Note: The settings and screen images used as examples in this manual are based on Internet Explorer 6.0.
2-2-1 Not connecting to the Internet
If the PC you use for monitoring air conditioners and performing operations is not going to be connected to the
Internet, use the procedure given below to set the web browser environment settings.
(1) Click the web browser menu item [Tools] and then click [Internet
Options…] to select that option.
(2) In the [Internet Options] tabbed dialog, click the [Connections] tab to
display that page.
(3) Select [Never dial a connection] in the Dial-up settings section and
click the [OK] button to close the dialog.
2-2-2 Connecting to the Internet using a dial-up connection
If the PC you use for monitoring air conditioners and performing operations is going to connect to the Internet
via a dial-up connection, use the procedure given below to set the web browser environment settings.
By performing these settings, a message will appear asking whether or not to use a dial-up connection when
an Internet connection is necessary. In the case when you want to connect to the Internet, connect to the
Internet by following the directions of this message.
(1) Click the web browser menu item [Tools] and then click [Internet
Options…] to select that option.
(2) In the [Internet Options] tabbed dialog, click the [Connections] tab to
display that page.
(3) Select [Dial whenever a network connection is not present] in the
Dial-up settings section and click the [OK] button to close the dialog.

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2-2-3 Connecting to the Internet using a proxy server (Using an existing LAN)
If the PC you use for monitoring air conditioners and performing operations is going to access the Internet via
proxy server by connecting to an existing LAN such as a LAN within your company, use the procedure given
below to set the web browser environment settings.
By performing these settings, your PC will connect to a proxy server only when connecting to the Internet.
(1) Click the web browser menu item [Tools] and then click [Internet
Options…] to select that option.
(2) In the [Internet Options] tabbed dialog, click the [Connections] tab to
display that page.
(3) Select [Never dial a connection] in the Dial-up setting section.
(4) Click the [LAN Setting . . .] button in the Local Area Network (LAN)
settings section to display the Local Area Network (LAN) Settings
dialog.
(5) In the Local Area Network (LAN) Settings dialog, check [Bypass proxy
server for local addresses] and click the [Advanced...] button.
(6) Enter the IP address for the G-50A (e.g. 192.168.1.1) in the
Exceptions field of the Proxy Setting dialog and click the [OK] button to
close the dialog and then close the other open dialogs to complete the
setting.
Note: If connecting to more than one G-50A, you can specify multiple IP addresses
like [192.168.1.1; 192.168.1.2], however, it is also possible to use the
asterisk (*) and specify [192.168.1*].

6
3 Performing Operations
Given below is an explanation of how to connect to the G-50A and how to monitor and adjust the operation
condition of air conditioners. Follow the directions given here when performing operations.
Note: If the G-50A is restarted due to circumstances like a power interruption, wait until the screen on the G-50A main unit
displays the normal operation screen (it takes several minutes before the normal operation screen is displayed) before
using a web browser to access the G-50A. If access is attempted while the G-50A is still starting up, the most recent data
might not be displayed or communication errors could occur.
Note: Default IP address of G-50A (GB-50A) is "192.168.1.1". (Factory setting)
3-1 Entering the User Name and the Password, and Connecting to
the G-50A
(1) Enter the web page address in the address field of the web
browser as follows and press the [Enter] key on the keyboard. A
screen appears for login.
http://[IP address of the G-50A]/index.html
Note: For example, type “http://192.168.1.1/administrator.html” if the G-50A IP
address is [192.168.1.1].
(2) To make it easier to connect the next time, click the web browser
menu item [Favorites] and click [Add to Favorites] to select that
option and add the address to your Favorites folder. Once this
address is added to your Favorites folder, it is not necessary to
input the address of (1). You can simply select it from your
Favorites folder and the G-50A page will appear.
(3) Enter the user name and the password in the login screen, and click the [Login] button. The screen for
monitoring the operation condition will appear. An explanation on how to perform operations in the normal
operation screen begins from the next page.
Note: Consult your administrator for your user name and password.
Note: The Web page is displayed in the same language as the computer uses and it is also possible to display the Web page in
other languages by entering the following Web page addresses.
English : Http://[IP address of G-50]/en/index.html
German : Http://[IP address of G-50]/de/index.html
French : Http://[IP address of G-50]/fr/index.html
Spanish : Http://[IP address of G-50]/es/index.html
Italian : Http://[IP address of G-50]/it/index.html
Russian : Http://[IP address of G-50]/ru/index.html
Chinese : Http://[IP address of G-50]/zh/index.html
Japanese : Http://[IP address of G-50]/ja/index.html

7
3-2 Checking the Operation Condition of the Air Conditioner
When you login correctly using the Login Screen, the screen used to monitor the operation conditions of air
conditioner and general equipment groups will appear. If you wish to operate an air conditioner or general
equipment, click the group icon to switch to the operation screen.
Note: The operation condition display will not update automatically. If you wish to view the very latest condition, click [Update] on
each screen.
Item Description
Update to most recent
condition Click [Update] to ensure the displayed items reflect the most recent operation condition.
Batch Operation Click [Batch Operation] if you want to perform an operation on all groups at once.
Group icon
The operation condition is indicated by the icon that is displayed. When you point to a group
icon with the mouse cursor, the group name is displayed. To switch to the operation screen,
click on the icon. The icons used to indicate the operation condition are shown below.
(1) Air conditioner group operation condition
(2) Ventilator (Lossnay) group operation condition
ON OFF Error Filter sign
Interlocked
ventilator ON Interlocked ventilator OFF Schedule set Energy saving
Note: Other than 4-aiflow icons, 2-airflow or ceiling-suspended icons are also available.
Select the icon type on Initial Setting Web.
ON OFF Error Filter sign
Schedule set Energy saving
Batch operation
Click to perform an operation
on all groups at once.
Update to most recent
condition
Click to update the screen so
that the most recent condition is
shown.
Group icons
These icons are used to
indicate the operation condition
of an air conditioner or a
general equipment group.
Switch to the operation screen
by clicking the icon.
Set temperature display
The set temperature is
displayed here.
Room temperature display
The temperature of the
indoor unit’s intake is
displayed here.
Operation mode display
The operation mode is
displayed here.

8
Item Description
Group icon
(3) General equipment group operation condition
Operation mode display The operation mode is displayed here.
Set temperature display The set temperature is displayed here.
Room temperature
display
The temperature of the indoor unit’s intake is displayed here.
Note: Because the temperature displayed here is of the indoor unit’s intake, it could be
different from the actual room temperature.
Note: The temperature display can be in either Celsius (°C) or Fahrenheit (°F) depending
on the setting.
ON OFF Error Schedule set
Note: Other than lighting icons, pump or card key icons are also available.

9
3-3 Performing Air Conditioner Operations
Given below is an explanation of how to perform air conditioner or general equipment operations.
3-3-1 Performing air conditioner operations that target one group
When you click on a group icon in the operation condition monitoring screen, the operation screen for that
group will appear. The items shown in this screen are the current operation conditions. Modify the items you
want to change and click [OK] to confirm the operation details. Click [Cancel] to return to the previous screen
without making any changes.
Item Description
ON/OFF Click [ON] or [OFF] to switch to ON or OFF.
Operation mode
Click [Cool], [Dry], [Fan], [Heat] or [Auto] to switch the operation mode.
If it is a ventilator group, select [Bypass], [Heat Recovery] or [Auto].
Note: Some unit models do not support certain operation modes. Unsupported operation modes are not
displayed.
Note: For K control models, all modes are displayed, however, choose only the modes that can be
operated.
Set temperature
Click to adjust the set temperature.
For [Cool] and [Dry], the setting range is 19 ~ 30°C/67 ~ 87°F, for [Heat] it is 17 ~ 28°C/63 ~
83°F, and for [Auto] it is 19 ~ 28°C/67 ~ 83°F.
Note: The temperature setting range varies depending on the unit model.
Note: If the setting range for set temperature is restricted, the temperature setting range will be smaller.
Note: If it is a ventilator model, this item is not displayed.
Air direction
Click to adjust the air direction.
Note: If it is a model that does not support air direction adjustment, this item is not displayed.
Note: If it is a model that does not support the swing feature, the swing option is not displayed.
Note: The temperature display can be set to display in either Celsius (°C) or Fahrenheit (°F).
Fan speed
Click to adjust the fan speed.
Note: If it is a model that does not support fan speed adjustment, this item is not displayed.
Note: The number of available fan speeds will be 2 settings, 3 settings or 4 settings, depending on the
number of fan speeds supported by the model.
Filter sign Click [Reset] to specify whether to reset the filter sign. It is set to reset when a green indicator is
displayed on the left of Reset ([ Reset]).
Note: If filter signs are not triggered in the group, then this item is not displayed.
Interlocked ventilator
ON/OFF Click [ON] or [OFF] to switch interlocked ventilator ON or OFF.
Note: For groups that are not connected to an interlocked ventilator, the items related to interlocked
ventilators are not displayed.
Fan speed of interlocked
ventilator
Click to adjust the fan speed of the interlocked ventilator.
Note: For groups that are not connected to an interlocked ventilator, the items related to interlocked
ventilators are not displayed.
Operation Prohibition
mark
When air conditioners are centrally controlled, the central control mark will be displayed, and if
the prohibit setting has been set for any operations, the operation prohibition mark [ ] will be
displayed next to those operation items.
If the prohibit setting has been set for an item, it is not possible to operate that item.
Fan speed of
interlocked ventilator
Click to adjust the fan speed
of the interlocked ventilator.
Interlocked ventilator
ON/OFF
Click to switch interlocked
ventilator ON or OFF.
Group name
The name of the group is
displayed here.
Fan speed
Click to adjust the fan speed.
OK button
Click to confirm the operation
details. You must press the O
K
button for the operation to take
effect.
Central control mark
This is displayed when the
units are centrally controlled.
ON/OFF
Click to switch to ON or OFF.
Set temperature
Click to adjust the set
temperature.
Operation mode
Click to switch the operation
mode.
Air direction
Click to adjust the air direction.
Filter sign
Click to reset the filter sign.
Cancel button
Click to cancel all operations.
Block name
The name of the block is
displayed here.
Operation prohibition
mark
If the prohibit setting has been
set for an operation, the
prohibition mark will be
displayed.

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3-3-2 Adjusting the operation conditions that target all groups
(1) Click [Batch Operation] from the operation condition monitoring
screen that displays all groups in a list. When air conditioner
groups, ventilator (LOSSNAY) groups, and general equipment
groups exist together in the List, a new screen will appear to
select the group. Click one of the [All air-conditioners], [All
LOSSNAY], or [Other Equipment] and the screen to set the batch
operation will appear.
If there is only air conditioner groups or only LOSSNAY groups or
only general equipment groups, this selection screen will not
appear.
(2) After you have made the settings on the screen for batch
operation, click [OK] and only the items for which operation was
performed will be sent to all the air conditioner units. To return to
the previous screen without performing any operations, click
[Cancel].
Note: If the setting range for set temperature is restricted, the temperature
setting range will be smaller.
Note: If operation of an item has been prohibited, then operation is not
possible for that item.

WT03797X08
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN