Input Voltage Detection - Tripp Lite SU60KX Manual

2 Theory of Operation (continued)

2.5 Input Voltage Detection

Located at NH-SYS-P board (Auxiliary Power for System, Detect Circuit for Voltage and Current)
BYP/R
CNP7 IP/R
BYP/N
1
2
3 IP/S
4
5 IP/T
6
7 IP/N
CNP8
1 BYP/R
2
BYP/S
3 BYP/S
4
5 BYP/T
6
7 BYP/N
BYP/T
Located at NH-SYS-M board (System MCU and Control Circuit)
VbypR
RM 36
RM 40
3
RM 50
VbypS
3
RM 54
(a) MCU detects RMS value of bypass 3-phase voltage via Vbyp_R (89), Vbyp_S (91) and Vbyp_T (93).
(b) MCU detects RMS value of main input 3-phase voltage via Vin_R (92), Vin_S (94) and Vin_T (96).
(c) MCU detects the bypass frequency and zero crossing via BYPZO_R (12) at falling edge.
(d) MCU detects the main input frequency and zero crossing via INPZO_R (14) at falling edge.
RP161 RP162 RP163
6
RP167 RP168 RP169
5
RP173
CP95
G1
RP177 RP178 RP179
9
10
RP185 RP186 RP187
13
12
5VS
RM 23
DM 1
RM 27
RM 30
5VS
QM 1
DM 5
RM 38
Vbyp_R
(89)
G1
G1
5VS 5VS
RM 63
DM 9
VbypT
3
Vbyp_S
RM 67
(91)
G1 G1
CP78
RP159
RP164
UP18B
IP/R
7
VbypR
RP170
IP/N
CP81
RP175
RP180
UP18C
IP/S
8
VbypS
CP82
RP183
RP188
UP18D
IP/T
14
VbypT
DM 2
VinR
BYPZO_R
5VS
(12)
CM 20
RM 37
DM 6
RM 41
3
Vin_R
G1
5VS
RM 51
DM 16 DM 11
VinS
3
Vbyp_T
RM 53
(93)
G1
53
CP83
RP160
RP165 RP166
UP20B
6
7
RP171 RP172
5
RP174
CP86
G1
CP87
RP176
RP181 RP182
UP20C
9
8
10
CP88
RP184
RP189 RP190
UP20D
13
14
12
5VS
RM 24
RM 28
RM 31
INPZO_R
(14)
QM 2
CM 21
RM 39
Vin_R
(92)
G1
5VS
RM 64
DM 17
VinT
3
Vin_S Vin_T
RM 68
(94) (96)
G1
VinR
VinS
VinT