SMA PT100U-NR - Manual (Page 14)

Installation and Electrical Connection SMA Solar Technology AG
14 PT100UNR-IEN083510 Installation Guide
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
2-wire system
or
or
Realizing the electrical connection
The wiring diagram provided must be used for establishing the electrical connections and
connectors.
Connecting the PT100 temperature sensor to "=Z5-X5" in a 4-wire system
I+ at the sensor Terminal 1
V+ at the sensor Terminal 2
I- at the sensor Terminal 3
V- at the sensor Terminal 4
Connecting the PT100 temperature sensor to "=Z5-X5" in a 2-wire system
V+ at the sensor Bridge terminal 1 with terminal 2
V- at the sensor Bridge terminal 3 with terminal 4
Connecting the PT100 temperature sensor to "=Z5-X5" in a 2-wire system
V+ at the sensor Terminal 5
V- at the sensor Terminal 6
Connecting the PT100 temperature sensor to "=Z5-X5" in a 2-wire system
V+ at the sensor Terminal 7
V- at the sensor Terminal 8