SMA PT100M-NR - Manual (Page 11)

SMA Solar Technology AG Installation and Electrical Connection
Installation Guide PT100MNR-IEN083510 11
4.7 Connecting the Sensor to the Sunny Central
The sensor is connected to the Sunny Central using the Z5-X5 terminal strips.
4-wire system
The sensor connection wires are duplicated in the immediate vicinity of the sensor.
2-wire system
or
or
Protect the connection interfaces against weather conditions.
When extending the sensor cable, protect the connection interface against weather
conditions (e.g. by using a junction box or terminal box).
Realizing the electrical connection
The Sunny Central wiring diagram provided must be used for establishing the electrical
connections and connectors.
Connecting the PT100 module temperature sensor to "=Z5-X5" in a 4-wire system
Original wire - white Terminal 1
Duplicated wire - white Terminal 2
Original wire - red Terminal 3
Duplicated wire - red Terminal 4
Connecting the PT100 module temperature sensor to "=Z5-X5" in a 2-wire system
Red Bridge terminal 1 with terminal 2
White Bridge terminal 3 with terminal 4
Connecting the PT100 module temperature sensor to "=Z5-X5" in a 2-wire system
Red Terminal 5
White Terminal 6
Connecting the PT100 module temperature sensor to "=Z5-X5" in a 2-wire system
Red Terminal 7
White Terminal 8