Midea VC Pro MVC-224WV2WN1 Service Manual page 50

VC Pro VRF 50/60Hz
Table 5-3.1: Compressor inverter module ports and components
Label in
Code
Figure 5-3.1
1 CN6
2 CN7
3 CN11
4 CN12
5 CN13
6 CN14
7 IC17
8 CN8/CN9
9 S7
10 CN15
11 CN21
12 CN5
13 CN4
14 /
15 CN19
16 /
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Content
Three phase power input of L1
Three phase power input of L2
Three phase power input of L3
Three phase output of the inverter ,connected to the
compressor
Three phase output of the inverter ,connected to the
compressor
Three phase output of the inverter ,connected to the
compressor
DC-bus current sensor
Communication port to Main PCB
Address setting switch of the inverter module
Port to Snubber resistance
PIM Common terminal of the negative pole, connected to the
DC-bus
Output of the three phase rectifier, Positive pole, connected to
reactance
Output of the three phase rectifier, Negative pole
Power terminal for DC fan inverter module
PIM Common terminal of the positive pole, connected to
reactance
LED1/LED2
Port voltage
Rated 220V AC of any two terminals
Rated 220V AC of any two terminals
Rated 220V AC of any two terminals
/
2.5-2.7V DC
/
/
/
DC 310V to CN4 when 220V 3hp power
input
/
DC 310V when 220V 3hp input
DC 310V to CN21 when 220V 3hp power
input