Mitsubishi Electric GB-50A Instruction Book page 8

Notes
●
When 15 or fewer GB-50A units are used in the designated network for air-conditioning, it is recommended that
the IP address be set using SW2 on the unit.
●
If the set IP address of GB-50A is forgotten, check the IP address that is registered on the monitoring PC (WEB
or TG-2000A). GB-50A can be started by changing the setting of SW2 on GB-50A and using an arbitrary fixed
IP address as a temporary IP address. It is recommended to paste a sticker with the IP address on the unit, so
that the IP address of GB-50A is available at all times. Once GB-50A is started up with a temporary IP address,
a new IP address can be assigned to it on the Initial Setting Web.
2) Setting of the service switch
The switches must be OFF for normal use. The switch setting change works when the power is turned on
next time.
SW 1
1 2 3 4
Not to be used
3-4 Service LED display
This unit comes with an LED that displays operation status.
Power supply
LED
LED No.
Power supply
LED
LAN
LAN
LED1
LED2
LED3
LED4
LED5
LED6
1
OFF
ON
OFF
ON
OFF
ON
*SW1-3 and SW1-4 are always OFF.
POWER LAN LINK/ACT
LAN
Table 3-4 List of services LED
Items
Powering status
LAN LINK
LAN ACT
Start-up
Operation ON/OFF
Error
(not defined)
(not defined)
M-NET communication
(transmission)
2 Contents
Start up with the normal
OFF
mode
OFF -
ON -
Start up with the update
ON
mode
1 2 3 4 5 6
LED1-6
ON : Power is supplied
ON : During LINK
Flicker: During communication
ON : Start-up not completed
ON : 1 or more units are ON
Flicker: Error occurred on 1 or more units / OFF: Normal state
-
-
Flicker : During communication
7
Remarks
*This setting is for normal use.
Setting is prohibited.
Setting is prohibited.
*The software can be updated with the
normal mode. If the update fails, or the
software does not work properly use
this setting to update the software
again.
Contents
/ OFF: Power is cut off
/ OFF: No LINK
/ OFF: No communication
/ OFF : Start-up completed
/ OFF: All OFF
/ OFF: No communication