System installation
The use of the current sensor is possible with the PIKO BA inverter from firmware
version: 01.00 and the PIKO inverter 4.2-20 from firmware version: 05.00. The
selection of the potential current sensor position depends upon the FW/UI version
of the inverter.
You can find more precise instructions in the respective operating manual of the
inverter.
In addition to the PIKO inverter other inverters can also be used in a photovoltaic
system. It is to be ascertained that all inverters in the building grid fulfil the
VDE-AR-N 4105 standard.
Without additional measures, only the building consumption and the yield of the
PIKO inverter can be determined and represented in a system with several inverters.
PV generators
1
Inverters without connected sensors (also external devices)
2
PV counter for inverter (optional)
3
Line circuit breaker for inverter
4
Energy consumers
5
Line circuit breaker for energy consumers
6
PIKO BA Sensor
7
PIKO inverter with sensor connection
8
Line circuit breaker PIKO inverter
9
Line circuit breaker for building
10
Feed-in procurement meter
11
Public grid
12
26
k
L/P2
l
k
L/P2
l
k
L/P2
l
Stromwandler
50
A 3x
I/S
2
L/P
2
I/S
2
L/P
2
I/S
L/P
2
2
1
VA
1
K/P
K/P
K/P
k/S
1
1
k/S
1
k/S
1
1
1
KI.
1
L 1
L 2
L 3
L1
L2
L3
Fig. 3: Connection of several inverters – current sensor position mode 1 for building consumption
(possible as of PIKO 4.2 and PIKO BA)
L1
L2
L3
Fig. 4: Connection of several inverters – current sensor position mode 2 for grid feed-in (possible
with PIKO BA from HW version 040101)
DE
EN
FR
ES
PL
PT
IT
DK
NL
GR
TR
27