L1
L1'
L2
L2'
L3
L3'
N
21 22 1718 19 20
A
B
Figure 4.13 Direct Insert Type Meter - “Meter in Load”
L1 L
2
L
3
N
PE
Load
L1 L
2
L
3
N
PE
Load
Figure 4.14 External CT Type Meter - “Meter in Grid”
INV L1
INV L2
INV L3
INV N
INV PE
Grid L1
Grid L2
Grid L3
Grid N
Grid PE
INV L1
INV L2
INV L3
INV N
INV PE
Grid L1
Grid L2
Grid L3
Grid N
Grid PE
Ua Ub Uc N Ia* Ia Ib* Ib Ic* Ic
21 22 17 18 19 20
A
B
CT Arrow
Grid
Pin 1&2 on the 16-Pin Connector
4.3 Meter Connection
The inverter can work with a three phase smart meter to achieve Export Power Management
function and/or 24hour consumption monitoring function.
The Pin 1 and Pin 2 of the 16-Pin COM port are used for Meter RS485 communication.
Figure 4.11
Pin
Definition
1
2
Meter RS485-A
Meter RS485-B
Figure 4.12 Direct Insert Type Meter - “Meter in Grid”
Pin 1&2 on the 16-Pin Connector
L1 L
2
L
3
N
PE
Load
INV L1
INV L2
INV L3
INV N
INV PE
Grid L1
Grid L2
Grid L3
Grid N
Grid PE
L1
L1'
L2
L2'
L3
L3'
N
21 22 1718 19 20
A
B
4. Comm. & Monitoring
4. Comm. & Monitoring
.33.
.32.
Pin 1&2 on the 16-Pin Connector
