Terminal Text Description Connector
50 MAINS V N Voltage input from Mains Neutral
BCP-508-7GN-4PA
51 MAINS V L3 Voltage input from Mains Phase L3
52 MAINS V L2 Voltage input from Mains Phase L2
53 MAINS V L1 Voltage input from Mains Phase L1
54 GEN V N Voltage input from Gen Neutral
55 GEN V L3 Voltage input from Gen L3
56 GEN V L2 Voltage input from Gen L2
57 GEN V L1 Voltage input from Gen L1
58 CAN L (Reserved) CAN Low
BCP-508-4GN
59 CAN H (Reserved) CAN High
60 Reserved -
61 Reserved -
4.4 Typical wiring diagrams
Figure 4.1
SGC 420 typical wiring
‐
120
G
+
+ -
+
1 2 3 4 5 6 7 8 9 1610 11 12 13 14 15 21 22 24 25 31 32 58 59
33 34 35 36 37 38 39 40 41 50 51 52 5354 55 56 5743 4842 45 44 47 46 49
‐
ECU
Engine
body
G
D+
B+
F1
Outputs
Supply
DC (+)
DC (-)
Output
Output
Output
Output
Output
Output
Output
Analogue inputs
Input
Input
Input
Input
Input
Input
D+
Tacho
BTS
battery
DC (+)
DC (-)
Data + (A)
Data - (B)
RS485
Low
High
CAN
ECU
USB
AC voltage
Mains
N
L1
L2
L3
Digital inputs (configurable)
Input
Input
Input
Input
Input
Input
Input
Input
Input
AC current CT
AC voltage
genset
N
L1
L2
L3
L1 (s1)
L4 (s2)
L1 (s2)
L2 (s1)
L2 (s2)
L3 (s1)
L3 (s2)
L4 (s1)
F4
s2
s1
P2
P1
L1
L2
L3
N
L1
L2
L3
N
F5
MBGB
s2s1
P2P1
s2s1
P2P1
P2P1
s2
s1
Sensor
common
USER MANUAL 4189341227A UK Page 18 of 86
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