Gree GMV BACnet Manuel technique et d'entretien - Page 15

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Gree GMV BACnet Manuel technique et d'entretien

2.COMMUNICATION DEBUG

2.1 COMMUNICATION DEBUG WITH AIR CONDITIONING
EQUIPMENT
After connecting unit multisystem, set the
centralized control address and IDU engineering
code of the unit to avoid C5 and CJ malfunction
Check BADnet gateway installation,
communication connection and dial-
Is the CAN bus matched
resistance is installed correctly?
AC unit and BACNet gateway
power off (this step can be
cancelled if it is already power off)
Energize the BACnet gateway
Check if the operation light is
blinking? (Blink once every 1s)
Check if BACnet gateway CAN
RX/TX light is blinking?
Communication between BACnet
gateway and AC unit is normal,
AC unit data can be received
GMV BACnet Gateway Technical Service Manual
Start
up setting are correct
Yes
Energize the AC unit
If BACnet gateway
power LED always on?
Yes
Yes
Yes
End
Conduct setting by refering
No
to the dial-up setting in "1.
Hardware debug"
No
Check supply voltage and
power connecting cable
BACnet gateway cannot
No
work normally, replace
other BACnet gateways
No
Abnormal condition
treatment 1
12