Gree GMV5E Series Service Manual page 88

GREE
between systems.
This function only needs to be set on the master system, which is the system with the centralized
control address SA2 DIP switch being "00000". For details, see the "Centralized Control Address DIP
Switch (SA2_Addr-CC)" section.
(9) n6 Fault query
This function queries historical faults of the system. Up to five historical faults can be memorized in
time order.
(10) n7 Parameter query
This function queries operation parameters of each module of the ODU in real time.
(11) n8 Indoor unit address query
This function queries addresses of all IDUs through one operation of the ODU.
(12) n9 Online IDU quantity query
This function queries the number of online IDUs through the ODU.
2.2.3 Function Setting Operations
Step 1: Open the commissioning window of the master unit panel.
Step 2: Power on the entire unit.
Step 3: Press "SW3" on the master unit to enter the to-be-selected status of function settings. By
default, the master unit is displayed as follows:
LED1
Function Code Display Mode
A7
Users can select corresponding functions by pressing "SW1 (UP)" or "SW2 (DOWN)" on the master
unit, including:
LED1
Function Code Display Mode
A7
A6
A2
A8
n0
n3
n4
n5
After selecting the functions to be set, press "SW7" to confirm entering function settings. The master
unit is displayed as follows:
LED1
Function Code Display Mode
A7
A6
A2
A8
n0
n3
Current Progress
Blinking 00
Current Progress
Blinking 00
Blinking 00
Blinking 00
Blinking 00
Blinking 01
Blinking 00
Blinking 00
Blinking 00
Current Progress
On 00
On nC
On 01
On 00
On 01
On 00
GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
LED2
Display Mode
Blinking
LED2
Display Mode
Blinking
Blinking
Blinking
Blinking
Blinking
Blinking
Blinking
Blinking
LED2
Display Mode
Blinking
Blinking
Blinking
Blinking
Blinking
Blinking
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LED3
Current Status Display Mode
00 Blinking
LED3
Current Status Display Mode
00 Blinking
00 Blinking
00 Blinking
00 Blinking
00 Blinking
00 Blinking
00 Blinking
00 Blinking
LED3
Current Status Display Mode
OC Blinking
nC Blinking
00 Blinking
OC Blinking
OC Blinking
00 Blinking