Mitsubishi Electric G-50A Instruction Book
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Mitsubishi Electric G-50A Instruction Book

Mitsubishi Electric G-50A Instruction Book

Central controller
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Mitsubishi Electric Air-conditioner Network System
Central Controller
Model: G-50A
Before using the controller, please read this Instruction Book carefully to ensure proper
operation. Keep this manual for future reference.
Contents
1.
Safety precautions ......................................................
2.
Product features .........................................................
3.
Functions ....................................................................
3-1
Specifications ..................................................
3-2
Display Screen ................................................
4.
User operation .........................................................
4-1
Operation condition monitor .........................
4-2
Operation setting ..........................................
4-2-1
Group operation setting ........................
4-2-2
Collective operation setting ..................
4-3
Timer operation ............................................
4-4
Malfunction ...................................................
4-5
Current time setting ......................................
5.
Initial setting .............................................................
5-1
Shifting to initial setting menu ......................
5-2
M-NET address setting ................................
5-3
Function setting ............................................
5-4
Group configuration setting ..........................
5-5
Interlocked operation setting ........................
5-6
Group name setting .....................................
5-7
User setting ..................................................
5-8
IP address setting ........................................
5-9
6.
Maintenance ............................................................
6-1
Refrigerant system monitor ..........................
6-2
Malfunction log monitor ................................
7.
External input / output function ................................
7-1
External input function .................................
7-2
External output function ...............................
Appendix 1: Initial setting (abridged) .............................
Appendix 2: User operation (abridged) .........................
Instruction Book
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Summary of Contents for Mitsubishi Electric G-50A

  • Page 1: Table Of Contents

    Mitsubishi Electric Air-conditioner Network System Central Controller Model: G-50A Instruction Book Contents Safety precautions ............Product features ............ON/OFF Functions ..............Specifications ..........Display Screen ..........CENTRAL CONTROLLER G-50A User operation ............Operation condition monitor ......Operation setting .......... 4-2-1 Group operation setting ......

  • Page 2: Safety Precautions

    This product is designed exclusively for use with the in serious damage to the controller. Be sure to check the MITSUBISHI ELECTRIC building air conditioning control temperature range specification in the Instruction Book. system. The use of this product with other air-conditioning management systems or for other purposes may result in malfunctions.

  • Page 3: Product Features

    2. Product features The central controller is capable of controlling up to 50 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.
  • Page 4 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.

  • Page 5: On/Off

    Operation (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- Air direction tive or per group.
  • Page 6 Item Specification The specific functions of a local remote controller can be prohibited as a collective or per group. Prohibit local remote [Prohibit function] control ON/OFF operation, Operation mode setting, Temperature setting and Filter sign reset operation. Timer The set schedule operations can be switched to ON/OFF (local remote controller opera- operation tion prohibition/permission) for each group.
  • Page 7 G-50A is set as the sub system controller. * The group setting is performed by main system control- * G-50A performs the group setting in this configuration. ler. *3 The number of connectible units may be fewer depending on the indoor unit models.
  • Page 8 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. Main system Sub system controller controller Group Group Group • A common group is managed by more than two main controllers. Main system Main system controller 1...

  • Page 9: Display Screen

    Refer to section "4. User operation User operation (page 10)" for the (page 10)" for the detail of operation detail of operation methods. G-50A methods. NOTE: The temperature setting includes a function to switch the display between Celsius (˚C) or Fahrenheit (˚F) (page 34).
  • Page 10 Collective operation switch The collective operation switch can be performed in the user setting mode for any screen. (Excluding menu screen) If this switch is pressed during the operation, a whole group stop is performed. LAN changeover switch Refer to section "5. Initial setting (page 25)" for explanation of the operation of these switches.

  • Page 11: User Operation

    Used the following two screens when user operation is performed. Operation monitor screen ..This screen displays ON/OFF and malfunction condition of unit. G-50A normally displays this screen. Operation setting screen ..The unit operations can be performed by individual group or collective op- eration.

  • Page 12: Operation Condition Monitor

    4 - 1 Operation condition monitor • This function displays the ON/OFF/Malfunction status of specific units or group. • ON/OFF/Malfunction status is shown by the indication corresponding to the unit or group appearing in inverse, normal or blinking display. • The user may select display items by unit address, group number or group name. Refer to section "5-7 User setting (page 34)"...

  • Page 13: Operation Setting

    4 - 2 Operation setting • There are two methods for the operation, performing the operation classified by groups or collective operation. 4 - 2 - 1 Group operation setting Display Room temperature display*1 Group number display Operation mode display Operation condition display Fan speed display...
  • Page 14 Operation panel 2 Operation mode A Group select 3 Fan speed switch switch switch 1 ON/OFF switch 6 Air direction setting switch 4 Temperature B Back screen setting switch switch 5 Current time C Cursor position setting switch movement switch 8 Remote operation prohibit switch 9 Timer mode...
  • Page 15 • In a LOSSNAY group, the operations of only the "ON/OFF" and "FILTER RESET" functions can be prohibited. • When an M-NET remote controller is used, it must be properly registered to the group for the G-50A unit to be able to prohibit its operation.
  • Page 16 (2) G-50A operation prohibition • The operation of this controller is prohibited when an operation prohibition setting for this controller is received from a system controller other than this controller or when an external input signal is used. PROHI- is displayed and the prohibition operation is display in reverse...

  • Page 17: Collective Operation Setting

    4 - 2 - 2 Collective operation setting • A collective operation setting and a collective prohibit setting can be performed for all the group managed by this controller at one time. (1) Collective operation setting 1 Press the switch to set "COL. (COLLECTIVE)" in blinking display and press the switch on the group operation setting screen.
  • Page 18 (2) Collective prohibit setting 1 Press the switch to set "PROH. (PROHIBIT)" in blinking dis- play and press the switch on the collective operation setting initial ENTER screen. 2 The collective prohibit setting initial screen is displayed. 3 Select the items to be prohibited or permitted on the collective prohibit setting initial screen.
  • Page 19 To obtain the correct setting contents, refer to the respective group operation setting screens. • When an M-NET remote controller is used, it must be properly registered to the group for the G-50A unit to be able to prohibit its operation.

  • Page 20: Timer Operation

    4 - 3 Timer operation • A weekly schedule setting can be specified for each group. • Possible to set on the timer the schedule to prohibit operation of the local remote controller in addition to ON/OFF schedule. • Always set to current time on the current time setting screen when the schedule setting is performed. NOTE: Refer to section "4-5 Current time setting".
  • Page 21 (1) Schedule pattern (P1~P3) setting • Follow the procedures described below to set each daily schedule pattern for each group. • The setting temperature or set-back values setting are also performed in the schedule setting operation. To enter the setting temperature or set-back value setting select SET-BACK or SET TEMP. Accordance with section "5-7 User setting (page 34)"...
  • Page 22 (2) Set-back values and setting temperature setting • Setting the set-back values and setting temperature can be performed only when selecting either "SET BACK" or "SET TEMP" on the user setting screen in the initial setting mode. • Set-back operation Set-back operation is a method which reduces the air conditioner running cost by controlling the operation with specified time band for lowered load.
  • Page 23 3 Press the (CLOCK/PATTERN) switch to select P1 to P4 or (-). 4 Press the ENTER switch one time to complete the setting. (The cursor will move to the next setting position.) 5 Repeat operations 3 and 4 to assign the schedule pattern to each day. NOTE: When the No.4 function setting is set ON, P4 cannot be set.

  • Page 24: Malfunction

    -1. Malfunction reset operation RESET Press the reset switch to reset all malfunctions. DEL. The reset operation can be performed on any page. NOTE: When operation of the G-50A is prohibited, reset operation is invalid. – 23 –...

  • Page 25: Current Time Setting

    4 - 5 Current time setting The current time, day, month and year are set on the current time setting screen. < Shifting to the current time setting screen > User operation menu BACK Press the switch to select Press the switch to back to SCREEN "5 CURRENT TIME SETTING".

  • Page 26: Initial Setting

    5. Initial setting 5 - 1 Shifting to initial setting menu • Shift to the initial setting menu by continuously pressing (2 seconds or longer) on the user operation menu screen. (Refer to section "3-2".) Shift to the user operation menu by continuously pressing (2 seconds or longer) on the initial setting screen.

  • Page 27: Function Setting

    5 - 3 Function setting • The functions of this controller are set according to the function settings. • The functions selects are set to OFF when the controller is shipped from the factory. (1) Select "7 FUNCTION SETTING" (or "2 FUNCTION SETTING").

  • Page 28: Group Configuration Setting

    5 - 4 Group configuration setting • Registration can be made for the indoor units, local remote controllers and sub system controllers in the same group. • Registration can be also performed for the group which is composed of only OA processing unit or LOSSNAY. (Independent ventilation group) ...
  • Page 29 Set all the units and controllers to be registered in the displayed group number. 6Repeat operation 3 to 5 to set all groups managed by this controller. BACK 7When all setting are completed, press the switch. SCREEN NOTE: • When there are M-NET local remote controllers in the system, always be sure to set the local remote controller address.

  • Page 30: Interlocked Operation Setting

    5 - 5 Interlocked operation setting • Registration of interlocked operation of Ventilation unit (OA processing unit and LOSSNAY) with single or multiple indoor unit is performed. All indoor units to be interlocked with ventilation unit for operation should be registered for the interlocking with ventilation unit.
  • Page 31 6Used the numeric keypad switch to set the address of the indoor unit that operates with displayed interlocked OA processing unit or LOSSNAY. When the indoor unit which address is 012. 1) Input "0" 2) Input "1" 3) Input "2" 4) Press the switch 012 * It is also possible just enter "1"...

  • Page 32: Group Name Setting

    5 - 6 Group name setting (1) Setting method • Specify new group name. • Either alphabet, numeric characters, hyphens or spaces can be used for name setting. • Maximum of ten characters can be set. • When the group name is displayed on the operation monitor screen, the first three characters of the group name are displayed.
  • Page 33 BACK 9When the group name setting is completed, press the switch. SCREEN The group configuration setting screen is displayed. 0Repeat operation 3 to 9 and perform the group name setting for each group. AWhen all the group name settings are complete, press the BACK switch.
  • Page 34 (2) Group name copy • A certain group name can be copied to another group. (This method use the "M" (memory) and "MR" (memory read) functions.) • It is convenient to use a group name for other groups because a group name that was copied can also be corrected. GROUP 1Press the switch to display the original group on the group...

  • Page 35: User Setting

    5 - 7 User setting • To match the needs for the user this menu is to specify some of the indications and functions that appear on the user operating screen. 1Press the switch to select "5 USER SETTING" on the initial set- ting menu screen.

  • Page 36: Ip Address Setting

    5 - 8 IP address setting • This function allows setting of the IP address and mask address needed at LAN connection. 1Select the switch select "8 IP ADDRESS SETTING" on the initial MENU setting menu screen. 6 ADDRESS SETTING 7 FUNCTION SETTING 8 IP ADDRESS SETTING The IP address setting screen appears.

  • Page 37: Maintenance

    6. Maintenance 6 - 1 Refrigerant system monitor • This function allows monitoring of the address of the outdoor units, and BC controller connected to the refrigerant system. It is useful for checking address settings, transmission line connection during installation. 1Press the switch to select "3 REFRIGERANT MONITOR"...

  • Page 38: Malfunction Log Monitor

    6 - 2 Malfunction log monitor • This function allows monitoring of a log of the last 64 malfunctions. • The contents of malfunction and time the malfunction occurred is displayed. The contents of malfunction is the address of the unit where it occurred, the error code and the address of the unit that detected the malfunction.

  • Page 39: External Input/Output Function

    7. External input/output function * External signal input requires the external I/O adapter (Model: PAC-YG10HA-E) sold separately. * Refer to Instalation Manual for detail. 7 - 1 External input function (1) The function of external input • Emergency stop/normal, run/stop and prohibit/enable of local remote controller operation can be controlled for all air conditioners by using a voltage (DC12V or DC24V) contact signal from an external source.

  • Page 40: External Output Function

    (B) Pulse signal 1Even if the ON signal is input during ON, the status will remain at the ON status. 2When the local remote controller is prohibited, the ON/OFF operation, operation mode selection and tempera- ture setting from the local remote controller is prohibited. 3Set the pulse width (contact ON time) to 0.5 to 1.0 second.

  • Page 41: Appendix 1: Initial Setting (Abridged)

    Appendix 1: Initial setting (abridged) Initial setting list Power on Displaying for a maximum of 7 minutes. * User operation There is group information. Group information modification and settings modification Continuously press There is no group information. (2 seconds or longer) Setting end Setting items Menu items screen...
  • Page 42 Interlocked setting INTERLOCKED SETTING … Registration of interlocked operation of ventilation unit with single or INTERLOCKED multiple indoor unit is performed. UNIT ADDRESS UNIT ADDRESS • : Select the address number of the interlocked GROUP SELECT OA processor unit or LOSSNAY. •...

  • Page 43: Central Controller G-50A

    INS. setting switch REMOTE TIMER movement switch RESET PROHIBITION MODE CENTRAL CONTROLLER ENTER DEL. G-50A 8 Remote operation prohibit switch 9 Timer mode 0 Reset switch 7 Ventilation setting switch switch User operation menu screen MENU WED 15:29 1 OPERATION MONITOR...
  • Page 44 Error code NOTE: When there is no malfunction taking place, [NO ERROR] lights up instead of [ERROR CODE]. When operation of the G-50A is prohibited, reset operation is invalid. Current time setting screen Move the cursor position Set the number or day * Set the date day, month, year and time.
  • Page 48 - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio / TV technician for help. MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN...

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