6 Electrical Connection
SMA Solar Technology AG
Installation ManualPPM-10-IA-en-1634
☐ With the exception of the signal generator for the Fast Stop function, all signal generators must always be
designed as make contacts.
Cable requirements for connecting a signal generator:
☐ Conductor cross-section: 1.5mm² to 2.5mm² (16AWG to 14AWG)
☐ Conductor type: copper wire
☐ Maximum cable length: 30m (98ft)
Terminal assignment:
The following table shows the default configuration of the switching inputs and outputs. The functions of the switching
inputs and outputs can be set via the user interface.
Terminal Switching input
or output
Function Designation
X702:1 DIO1 Feedback of circuit breaker of genset 1: If the con-
tact is closed, the genset is operating and connected
to the local utility grid.
In the redundant system: Switching the respective
other programmable logic controller on and off
-
X702:2
X702:3 DIO2 Feedback of circuit breaker of genset 2: If the con-
tact is closed, the genset is operating and connected
to the local utility grid.
In the redundant system: Changing-over the Redun-
dancy Connector
-
X702:4
X702:5 DIO3 Feedback of circuit breaker of genset 3: If the con-
tact is closed, the genset is operating and connected
to the local utility grid.
In the redundant system: Reading out Feedback1 of
the Redundancy Connector
-
X702:6
X702:7 DIO4 Feedback of circuit breaker of genset 4: If the con-
tact is closed, the genset is operating and connected
to the local utility grid.
In the redundant system: Reading out Feedback2 of
the Redundancy Connector
-
X702:8
X702:9 DIO5 Feedback of circuit breaker of genset 5: If the con-
tact is closed, the genset is operating and connected
to the local utility grid.
-
X702:10
X702:11 DIO6 Feedback of circuit breaker of genset 6: If the con-
tact is closed, the genset is operating and connected
to the local utility grid.
-
X702:12
X702:13 DIO7 Fast stop
When the signal is used, a fast stop of the inverters
is performed according to the settings on the user in-
terface of the programmable logic controller (see
user manual of the HybridController).
-
X702:14