SMA SC 100LV-560HE Amendments - Manual (Page 2)

SMA Solar Technology AG
Installation Guide 2/2 Errata_SC-IEN091911
Analog inputs
The remarks on analog inputs apply to Sunny Central devices with a Sunny Central Control 03 from
firmware version 1.06.
Analog Sensors and external Signal
In the Sunny Central it is possible to install a temperature sensor PT 100 and 2 additional sensors
(preconfigured as ExtSollrr, ExtGlolrr) on the Sunny Central Control panel via the customer's terminal
strip. See the table below for the respective customer-supplied connection possibilities. These sensors
can be configured by the customer.
In addition to the analog sensors one further signal (ExtAlarm) can be installed. This signal has a
direct impact on the operation of the Sunny Central.
In order to connect the signal ExtAlarm a 230 V
AC
power supply must be available.
Summary of Analog Inputs
Connecting the Sensors
Procedure for connecting the sensors to the terminal strip in the Sunny Central Control
panel is described in the accompanying documentation.
Configuring the Sensors
Please refer to the Sunny Central user manual for detailed information.
Layout of Analog Inputs on the Sunny Central control panel
For the connection of the analog sensors and for the digital signals it is imperative to follow
the circuit diagram provided.
The connection is made at the connection terminals. Here, the connections for four-
conductor and two-conductor sensors must be observed. Any required instrument
transformers should be made available.
Analog inputs Ain Name Meaning
Customer Ain3 ExtSollrr External irradiation sensor
Customer Ain4 ExtGlolrr Pyranometer (measurement of global solar radiation)
Customer Ain5 ExtAlarm External alarm input, e. g. for monitoring the
functioning of the medium-voltage transformer
Customer Ain8 TmpExt C External temperature sensor / PT 100