Mitsubishi Electric Central Controller G-50A User manual

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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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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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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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
Unit
M-NET Gateway
management range
Management range
of G-50A
Unit
Unit
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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
NEXT
NEXT
G-50A
001
PROHI
BITED
01 02
1
3
12
5
4
ENTER
BACK
6
A
7 F
8 I
P
2
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 –
NEXT
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
ON
12345 678
OFF
M-NET ADDRESS: 000
16-04-2002
014 6602
12 : 45
(DETECT 014)
05-04-2002
2002
2002
2002
012 6607
09 : 12
(DETECT 012)
.
GROUP NO
NONE
INDICATE
INDICATE
1-1-2001
NONE
7 TEMP. UNIT ˚C/ ˚F
6
3
2
5
4
8
7
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
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