Midea VRF Series Service Manual page 67

V6R VRF 50/60Hz
Table 5-2.5: System check
DSP content
---- Standby (ODU address + IDU Qty.)/frequency/particular state
0.-- Unit address
1.-- Single module capacity
2.-- Number of outdoor units
3.-- Number of indoor units as set on PCB
4.-- Total capacity of outdoor unit
5.-- Single module compressor frequency
6.-- System compressor frequency
7.-- System operating mode
8.-- Fan A speed index
9.-- Fan B speed index
10.-- Indoor heat exchanger pipe (T2) temperature (°C)
11.-- Indoor heat exchanger pipe (T2B) temperature (°C)
12.-- Main heat exchanger pipe (T3) temperature (°C)
13.-- Outdoor ambient (T4) temperature (°C)
14.-- Outdoor liquid pipe (T5) temperature (°C)
15.-- Plate heat exchanger cooling refrigerant inlet (T6A) temperature (°C)
16.-- Plate heat exchanger cooling refrigerant outlet (T6B) temperature (°C)
17.-- Inverter compressor discharge (T7C1) temperature (°C)
18.-- Outdoor heat exchanger gas pipe (T5) temperature (°C)
19.-- Compressor inverter module internal (Ntc) temperature (°C)
20.-- Inverter module heatsink (T9)temperature (°C)
21.-- Outdoor heat exchanger liquid pipe (TL) temperature (°C)
22.-- Compressor suction (T7) temperature (°C)
23.-- Discharge superheat degree (°C)
24.-- Primary current (A)
25.-- EXVA position
26.-- EXVC position
27.-- Compressor discharge pressure (MPa)
28.-- Compressor suction pressure (MPa)
29.-- Number of indoor units currently in communication with master unit
30.-- Number of indoor units currently operating
31.-- Heat exchanger status
32.-- System startup status
33.-- Silent mode
34.-- Static pressure mode
35.-- TES(°C)
36.-- TCS(°C)
37.-- DC voltage A
38.-- AC voltage B
39.-- Number of indoor units for cooling operation
40.-- Number of indoor units for healing operation
41.-- Number of high temperature hydronic modules running
42.-- Total capacity of indoor units for cooling operation
43.-- Total capacity of indoor units for heating operation
44.-- Total capacity of high temperature hydro modules running
45.-- Fan's failure history
46.-- Software version
47.-- Power limitation mode settings
48.-- Reserved
49.-- Reserved
50.-- Reserved
51.-- Most recent error or protection code
-- -- --
Notes:
1. The fan speed index is related to the fan speed in rpm and can take any integer value in the range 1 (slowest) to 30 (fastest).
2. Silent mode:

0: night silent time 6h/10h; 1: night silent time 6h/12h; 2: night silent time 8h/10h; 3: night silent time 8h/12h; 4: no silent mode; 5: silent mode;
6: super silent mode.
3. Te: Low pressure equivalent saturation temperature (°C) Tes: Target Te value. Tc: High pressure equivalent saturation temperature (°C) Tcs: Target Tc value
66
Parameters displayed on DSP2 Remarks
Master unit: 0; slave units: 1, 2
8-20HP
Displayed on master unit PCB only
Displayed on master unit PCB only
Only available for master unit, displayed on slave
units has no sense
Displayed on master unit PCB only
Actual value = value displayed × 10
0: off; 2: cooling; 3: heating; 4: main heating; 5:
main cooling.
Refer to Note 1
Refer to Note 1
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed × 24
Actual value = value displayed × 4
Actual value = value displayed × 0.1
Actual value = value displayed × 0.01
Displayed on master unit PCB only
Displayed on master unit PCB only
0-OFF; 1-Condenser; 2-Condenser (Not used);
3-Evaporator; 4-Evaporator (Not used)
2~4-Startup control; 6-PI control;
Refer to Note 2
0: 0 Pa; 1: 20Pa; 2: 40Pa; 3: 60Pa; 4: 80Pa.
Actual value = value displayed
Actual value = value displayed - 25
Actual value = value displayed × 10
Actual value = value displayed × 2
Actual value = value displayed
Actual value = value displayed
Actual value = value displayed
"--" is displayed if no error or protection events
have occurred since start-up
End
.