Description Of Each Stage Of Debugging Progress; Buttons And Digital Display Tube On The Motherboard Location - Gree FGR25Pd/DNa-X Service Manual

status.
Functions of debugging buttons:
Key No.
Function
Buttons and digital display tube on the motherboard location：
Debugging procedure for test run, display instruction for indicator on main board of outdoor unit and
operation method are as below:
——
Progress
Display Code
01_ Set master
unit
02_ Allocate
addresses
03/QTY of module
03_ Confirm the
quantity of ODU
Duct type split Air conditioner Inverter Series
SW1
Up

Description of each stage of debugging progress

Debugging Code
LED
Display
Code
Display
01/CC
repeatedly
Display
01/CF
repeatedly
Display
01/OF
repeatedly
02 Flicker
Display
02/L7
repeatedly
Display
02/OC
repeatedly
Display
repeatedly
Display
03/OC
repeatedly
SW2
Down
Instruction for Code and Operating Method
There is no master unit in the system. The system cannot
continue to conduct debugging, and all the buttons are invalid
that must be reset by cutting the power.
There are two or more master units in the system. The system
cannot continue to conduct debugging, and all the buttons are
invalid that must be reset by cutting the power.
There is only one master unit in the system. The unit will
automatically enter into the next step after display for once.
The system is allocating addresses. It will display asbelow after
10 seconds:
There is no master unit. The display will last for 1 minute, within
this 1 minute, the master IDU can be set by debugging software.
If the master IDU has not been set within this 1 minute, the
system will automatically set the IDU with the minimum IP
address as the master IDU.
The system has finished allocating the addresses, there is
master IDU.It will automatically enter into the next step's
operation after displaying for once.
Confirmation of quantity of modules in the system. If the actual
quantity of ODU is inconformity with the displayed quantity,
please check the dial code and wire connection and then
conduct debugging for confirmation.
If the actual quantity of ODU is in conformity with the displayed
quantity, press SW3 button to confirm. After confirmation, all the
module nixie tubes will repeatedly display "03" and "0C", after
displaying for once, the system will automatically enter into the
next operation.
81
SW3 SW4
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