A SERVICE OF

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54
PRELIMINARY
2 Theory of Operation (continued)
2.6 Output Voltage Detection
Located at NH-SYS-P board (Auxiliary Power for System, Detect Circuit for Voltage and Current)
Located at NH-SYS-M board (System MCU and Control Circuit)
OP/R
RP128RP127
CP 7 2
RP 1 3 4
RP 1 2 3
CP 7 3
5
6
7
UP17B
G1
RP132RP131 RP 1 3 3
RP 1 2 9
OP/S
RP144RP143
RP 1 3 9
CP 7 6
10
9
8
UP17C
RP 1 4 5
OP/T
RP153RP152
RP 1 4 9
CP 7 7
12
13
14
UP17D
RP 1 5 4
OP/N
VoutR
VoutS
VoutT
1
2
3
4
5
6
7
CNP 9
OP/S
OP/R
OP/N
OP/T
RM3 2
(95)
RM2 9
G1
VoutR
12
3
DM4
5VS
RM4 6
(97)
RM4 5
G1
VoutS
12
3
DM8
5VS
RM6 0
(99)
RM5 9
G1
VoutT
12
3
DM14
5VS
Vout_R Vout_TVout_S
(a) MCU detects RMS value of 3-phase output voltage via Vout_R (95), Vout_S (97) and Vout_T (99).