Steca coolcept3 StecaGrid 3203, Инструкция по установке и эксплуатации

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The address is changed at the inverter via the menu items
„Settings“
▶
„Address“ .
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Only addresses ranging from 1 – 99 may be set.
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The bus master devices usually support less than 99 addresses.
Consult the respective operating instructions for these devices
before setting the addresses of the inverters.
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We recommend starting with address 1 for the first inverter on
the bus and then incrementing the address by 1 for each subse-
quent inverter on the bus, in the same order as they are physi-
cally installed. This makes it easier to identify the relevant
inverters when their address is displayed in messages shown on
the remote display.
3.6.7 Modbus RTU
The inverter communicates via Modbus RTU with energy meters. The
following applies:
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Only energy meter pre-programmed in the inverter can be used.
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The energy meter must measure the supply from the grid in
positive direction. Follow the manufacturer's instructions.
3.6.8 Modbus RTU data connection cable
NOTICE!
Material damage from electrical current! The
alternative data connection cable may only be
manufactured by technical professionals.
On the inverter side, a 4-pole telephone cable with RJ10 connector
may be used as data connection cable.
4
1
Fig. 8: Contact assignment (= line number) of the RJ10 plug
Device
Connection
Inverter
RJ10
Signal
Contact 1 Data A
2 Data B
3 Ground
4 —
EN
750.661 | Z03 | 2016-09-12 28