ECCO SG05LP1 | User Manual26
Meter Connection
System Connection for the CHNT Meter
Earth Connection (MANDATORY)
An Earth Cable shall be connected to the earth plate on the grid size in order to prevent electric shock if the
original protective conductor fails.
All neutrals can be linked together to maintain the neutral bond. When a Neural Earth bond is required for
an ‘O-grid’ operation, then it has to be removed on ‘Grid-Tied’ operation.
If an Earth Bond is required between neutral and earth and your system is a hybrid system, then you can
have a permanent earth wire since this can cause faults with an RCD before the inverter.
ON
1 2
ON
1 2
DDSU666 DIN-RAIL METER
230V 5(60) A 800imp/kWh
2
56
1
4
7
8
3
L N
N L N L N L
Grid
AC
Breaker
System connection diagram for the CHNT meter
21 43
CHNT DDSU666
DDSU666 DIN-RAIL METER
230V 5(60) A 800imp/kWh
2
5 6
1
4
7 8
3
Output
RS 485
Grid input
CHINT meter
L
N
RS485
RS485B
RS485A
Load
L N PEL N PE
L N PE
Grid
Gen
Inverter
RS 485
parallel_1 parallel_2
BMS 485/
CAN
DRMs
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