Example For System Configuration; To Control A K Control Model; To Use System Controllers On Multiple Units; External Input/Output Usage Method - Mitsubishi Electric GB-50A Installation Manual

9

Example for System Configuration

1. To control a K control model

● Set GB-50A address to "000" when a K transmission
Converter is connected. Always set to the master system
Controller when the address is "000".
● When using a group setting for the K control model, set
Only the indoor unit that belongs to that group.
● Set the min. indoor unit address in the group for the K
control model group No.
The K transmission converter address is "K control model
address + 200". Set the address to K transmission converter
main body, and register it to GB-50A using the Initial Setting
Web or the Initial Setting Tool.
● Set the master system controller function select
No.4 to "OFF" (operation prohibit transmission valid)
When the K transmission controller is connected.

2. To use system controllers on multiple units

● Make the initial setting such as group setting or interlock
setting using the Initial Setting Web or the Initial Setting
Tool on GB-50A.
● Set one system controller that is allowed to
send operation prohibition within a system.
10

External Input/Output Usage Method

1. External signal input function

* External signal input requires the external I/O adapter (Model: PAC-YG10HA) sold separately.
(1) External input
Emergency stop/normal, run/stop and prohibit/enable of local remote controller operation can be
controlled for all air conditioners being controlled by using a voltage (DC12V or DC24V) contact signal
from an external source. (Select with the function select setting using the Initial Setting Web or the Initial
Setting Tool.)
No. External signal input function
Do not use external input signal (factory
1
setting)
Execute emergency stop/normal with level
signal
2
Perform ON/OFF with level signal
3
Perform ON/OFF, prohibit/enable with pulse
4
signals
GB-50A
000
(Main system controller)
GB-50A
000
(Main system controller)
ON/OFF remote
controller 201
(Sub system controller)
CN2
Function
No.6 No.7
OFF OFF
OFF ON The local remote controller ON/OFF operations, and
the controller ON/OFF operation and prohibit/enable
change operations will be prohibited during
emergency stop.
ON OFF The local remote controller ON/OFF operations, and
the controller ON/OFF operations and
prohibit/enable change operations will be prohibited.
ON ON Set the pulse width while the contact is ON to 0.5 to
1 sec.
16
M-NET
20 indoor units
Group 1 to Group 10
20 indoor units (for control)
221
Group 21 to Group 38
K transmission converter
(Model: PAC-SC25KAA)
Power supply unit
(Model PAC-SC50KUA)
50 Indoor units
Group 1 to 20)
Power supply unit
(Model PAC-SC50KUA)
Remarks