SMA RA100T-NR - Manual (Page 10)

Assembly and Electrical Connection SMA Solar Technology AG
10 RA100TNR-IEN083510 Installation Guide
4.5 Connecting the Sensor to the Sunny Boy Control Plus
The sensor is connected to the analog input port (ANALOG IN) of the Sunny Boy Control Plus.
4.5.1 Irradiation Sensor
The irradiation sensor is connected to an available analog input port (ANALOG IN) of the Sunny Boy
Control Plus.
4.5.2 Temperature sensor
The temperature sensor is connected using a 2- or 4-cable system to the analog input port
(ANALOG IN) of the Sunny Boy Control Plus.
4-cable system
The analog input ports AIN-7 and AIN-8 are fitted with PT100 resistors for use with a 4-cable system.
The supply currents required for this are provided by the Sunny Boy Control Plus. The temperature
sensor's connection wires are duplicated in the direct vicinity of the sensor. Thus a total of 6 wires are
required (2 wires for the irradiation sensor and 4 wires for the temperature sensor).
or
Protect connection interfaces against weather effects.
When extending the sensor cable, protect the connection interface against weather effects
(e.g. using a junction box or terminal box).
Connection of sensors using a connection terminal block
To connect to the Sunny Boy Control Plus, use the 25-pin connection terminal block
(see section 8 "Accessories" (page 17)).
Connection of the irradiation sensor
Green (irradiation sensor +) PIN 1 (AIN-1) or
PIN 3 (AIN-2) or
PIN 5 (AIN-3) to PIN 8 (AIN-6)
White (irradiation sensor -) PIN 14 (AGND) to PIN 19 (AGND) or PIN 24 (AGND)
Connection of temperature sensor PT100 to "AIN-7" in a 4-cable system
Original wire, yellow PIN 11 (PT100-I1+)
Duplicated wire, yellow PIN 9 (AIN-7+)
Duplicated wire, brown PIN 20 (AIN-7-)
Original wire, brown PIN 22 (PT100-I1-)
Connection of temperature sensor PT100 to "AIN-8" in a 4-cable system
Original wire, yellow PIN 12 (PT100-I2+)
Duplicated wire, yellow PIN 10 (AIN-8+)