SMA Solar Technology AG
Switches transmit switching signals to the Fuel Save Controller. When you connect switches to switching inputs, you
must always proceed as follows:
Figure 8: Connection of a switch as a signal generator (example)
Terminal assignment:
Terminal
Switching input
X702:1
DI 1
X702:2
X702:3
DI 2
X702:4
X702:5
DI 3
X702:6
X702:7
DI 4
X702:8
X702:9
DI 5
X702:10
X702:11
DI 6
X702:12
X702:13
DI 7
X702:14
X702:15
DI 8
X702:16
X702:17
DI 9
X702:18
Installation Manual
Contact
Feedback from the circuit breaker of the
genset 1*
Feedback from the circuit breaker of the
genset 2*
Feedback from the circuit breaker of the
genset 3*
Feedback from the circuit breaker of the
genset 4*
Feedback from the circuit breaker of the
genset 5*
Feedback from the circuit breaker of the
genset 6*
Fast stop**
Feedback from the circuit breaker of the util-
ity grid***
Feedback from the circuit breaker of the PV
power plant****
6 Electrical Connection
Designation
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
Positive terminal
Negative terminal
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