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Mitsubishi Electric Air-conditioner Network System
Central Controller
Instruction Book
Model: G-50A
Contents
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1. Safety 1
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2. Product feature 2
ON/OFF
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3. Function
4
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3-1 Specification
4
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3-2 Display screen 8
CENTRAL CONTROLLER
G-50A
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4. User operation 10
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4-1 Operation condition monitor
11
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4-2 Operation setting
12
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4-2-1 Group operation setting 12
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4-2-2 Collective operation setti
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1 . SAFETY Please take a moment to review these safety precautions. They are provided for your protection and to prevent damage to the controller. This safety information applies to all operators and service personnal. After you have read this manual, always observe the procedures described in the explanations and store it with the installation manual in a location that is easy to find. If the controller is going to be operated by another per- son, make sure that this manual is given to them. S
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2 . Product Features The central controller is capable of controlling up to 50 air conditioner units. It supports the following operating function. [ 1 ] User operating function (1) Operation 1. Virtually almost functions operated by local remote controller are supported. The central controller can be used to control the indoor units in specific group ON or OFF, select the operating mode (COOL, DRY, FAN, AUTO and HEAT) for the indoor unit or HEAT RECOVERY, BY-PASS, AUTO for the ventilation
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[ 2 ] System configuration setup and maintenance function (1) Setup for system configuration 1. Registration can be made for the indoor units, local remote controllers and slave system controllers in the same group. And also registration can be made for the ventilation such as OA processing unit. 2. Group name may be specified. ( Names may include alphanumeric characters.) 3. Group name may be copied. 4. Setting of group configuration and specifying the group name may be performed as lo
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3 . Functions 3-1 Specifications Item Specification DC24V,0.02A(Maximum loading) Power received from PAC-SC50KUA Power Supply Unit via M-NET transmission line. Source power requirement Input voltage 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 -20 ˚C +60 ˚C / – 4 ˚F +140 ˚F Non operating Environmental condition Humidity 30 90%RH (No condensation) mm 120(H) 300(W
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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. The set schedule operations can be switched to ON/OFF (local remote controller Timer operation operation prohibition/permission) for each group. Operation Filter sign The filter sign reset operation after the air filters are cleaned can
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Item Specification Group name Group name can be specified and display on the operation setting screen. designation * Group name setting is need at the initial setting. Emergency stop/normal, ON/OFF, prohibit/permit for local remote operation can be External signal input controlled for units being controlled with a non-voltage contact signal input from an Other external source. interface When one or more units being controlled are operating, the "ON" signal will be out- External put, and if a ma
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NOTE : The following group setting cannot be performed. • Unit groups which are not under the management of the master controller and are managed by the slave system controller. Master system Slave system controller controller Group Group Group • A common group is managed by more than two master controllers. Master system Master system controller 1 controller 2 Group Group Group • A slave system controller which exceeds the management range of the master system controller of two or more. Maste
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Overall status lamp 3 - 2 Display Screen The lamp indicates the unit op- eration condition. …… ON During operation …… OFF All group are stopping …… BLINKING Malfunction Display 01 02 02 PROHI BITED G-50A NOTE: The temperature setting includes a function to switch the display between Celsius (˚C) or Fahrenheit (˚F) (page 34). 2 1 Continuously press and (2 seconds or longer) ENTER NEXT 3 1 4 5 001 P 4 -8- 04-2002 MON
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The collective operation switch can be per- Collective operation switch formed in the user setting mode for any screen. If this switch is pressed during ( Excluding menu screen ) the operation, a whole group stop LAN changeover switch is performed. Refer to section "5. Initial setting ( page 25 ) " for explanation of the operation of these switches. LCD contrast adjustment knob LAN status lamp Orange LED indicates action and green LED indicates link. 02 Service LAN connector Refer to section "5.
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4 . 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 operation. These operation include the ON/OFF, operation mode, fan speed, temperature setting, air direction, ventilation setting, timer operation ON/OFF, local
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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)" for detail of user setting. • During the user operation mode, this screen returns from any screen if there is no op
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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 Ventilation No. Name of switches Function Display Operation status display The ON/OFF condition of the dis- ON/OFF switch 1 played group is switched. *When there is an interlocked OA processing unit or LOSSNAY , turning this switch ON starts operation in a [High] ventilated state. Each time to push the switch, a mode is sel
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Function Display No. Name of switches These switches are used when the cur- Current time Refer to section "4-5 Current time setting" . 5 rent time is set. setting switch The Air flow direction can be selected. Air flow direction The air flow direction can be selected Air direction 6 setting switch to four directions and swing operation (auto vane). The operation mode of the interlocked Ventilation volume setting display ventilation can be performed. Ventilation *Where there is no interlocked ven
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(1) Local remote control operation prohibition setting. • G-50A can prohibit the operation of item such as connected local remote controller or slave system controller for each group. The prohibit items are ON/OFF operation, operation mode, temperature setting and filter sign reset operation. GROUP Press the switch to display the group that the operation 1 SELECT prohibition setting will be performed. 2 Press the or switch to set "PROH. (PROHIBIT)" on the
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(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- The is displayed and the prohibition operation is display in re- BITED verse display when operation of this controller is prohibited by another system controller or an external input signal used. The prohibition operation which is disp
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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 ENTER display and press the switch on the group operation setting screen. 2 The collective operation setting initial screen is displayed. 3 Select the items for operation setting on the collective ope
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(2) Collective prohibit setting 1 Press the switch to set "PROH. (PROHIBIT)" in blinking ENTER display and press the switch on the collective operation setting initial 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. Each time to press the switch corresponding to the prohibition item, the prohibition or permission is selected. Prohibition setting :
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9 The collective operation setting initial screen is displayed. REMOTE PROHIBITION 10 Press the switch to set "REMOTE CONTROL PROHIBIT ". 0 11Remote operation prohibition/permission display ("REMOTE CONTROL PROHIBIT " ) is displayed with blinking. 12 Press the or switch to display the "SET" in blinking display for the indicated function area. ENTER Press the switch one time to complete the collective prohibit set- ting. 13 The collective prohibit setting is
