Connecting energy meter
The energy meter is installed on a top-hat rail in the meter box or the main distributor.
DANGER
Risk of death due to electrical shock and discharge!
- De-energise device and secure against being switched on again.
INFO
Only energy meters which have been approved for the inverter by KOSTAL Solar Electric may be used.
You will find an up-to-date list of approved energy meters in the download area for the product on our website.
INFO
The following requirements apply to the communication cable:
Conductor cross-section from 0.25 to 1.5mm²
Length: max. 30 m
Stripping length: 8 mm
Twisted pair (e.g. Cat.7 / AWG23-19)
Please refer to the specifications for conductor cross-sections in the manual for the energy meter being used.
The energy meter must be installed at the grid connection point in the house grid. The installation position is queried and set in the installation wizard or can be set in the Webserver.
- Switch the DC switch on the inverter to OFF.
- De-energise the house grid and secure it against being switched back on.
- Fit the energy meter on the top-hat rail in the control cabinet or power distributor.
- Correctly route the communication cable from the inverter to the control cabinet and connect to the energy meter following the wiring diagram provided by the manufacturer.
- Connect communication cable in inverter to terminal for energy meter.
1
Terminal for energy meter (Modbus RTU)
2
Communication cable to energy meter
3
Sealing ring with union nut
4
Energy meter
- The energy meter is connected.
The type of energy meter used is selected when the inverter is first installed or can be set using the inverter menu or Webserver.