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(6) Description of each stage of debugging progress:
——
Debugging code Progress code
progress
Code
db
db
01_Set up master
unit
db
db
——
Debugging code Progress code
progress
Code
db
02_Allocate
db
addresses
db
db
03_Confirm the
quantity of
modules
db
db
04_Confirm the
quantity of IDUs
db
db
db
05_Detect
internal
communication
db
db
db
db
06_Detect
outdoor
components
db
Description of each stage of debugging progress
LED1
LED2
Display
Display
code
status
status
light
01
light
light
01
light
light
01
light
light
01
light
Description of each stage of debugging progress
LED1
LED2
Display
Display
code
status
status
light
02
light
light
02
light
light
02
light
light
03
light
light
03
light
light
04
light
light
04
light
light
05
light
light
05
light
light
05
light
light
05
light
light
05
light
light
06
light
light
06
light
Status code
LED3
Display
Code
status
A0
light
System is not debugged.
System doesn't have master unit. Reset
CC
light
master unit.
More than 2 master units are set. Reset
CF
light
master unit.
Master unit is successfully set. Start next
OC
light
progress.
Status code
LED3
Display
Code
status
Ad
blink
System is allocating addresses.
Master IDU is not set. Please set master
IDU. If it's not set in 1min, system will set
L7
blink
the master IDU randomly.
OC
light
Allocation is finished. Start next progress.
LED3 displays the quantity of modules.
01~04
blink
Confirm the number manually.
System has confirmed the quantity of
OC
light
modules. Start next progress.
LED3 displays the quantity of IDUs.
01~80
blink
Confirm the number manually.
System has confirmed the quantity of
OC
light
IDUs. Start next progress.
System detects "driven communication
C2
light
error between master unit and inverter
compressor".
System detects "driven communication
C3
light
error between master unit and inverter
fan".
IDU/ODU "high proportion of rated
CH
light
capacity".
IDU/ODU "low proportion of rated
CL
light
capacity".
OC
light
Detection is finished. Start next progress.
Error
System detects error in outdoor
light
code
components.
No error in outdoor components. Start
OC
light
next progress.
40
Photovoltaic Multi VRF
Meaning
Meaning
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