SMA SC 200 - Manual (Page 48)

Analog Inputs SMA Solar Technology AG
48 SC-BEN100262 User Manual
9 Analog Inputs
Analog Sensors
In the Sunny Central it is possible to install two sensors (ExtSollrr, ExtGlolrr) onto Sunny Central
Control via the customer’s terminal strip. The table below shows the various connection options
available to the customer. These sensors can be configured by the customer.
If you have ordered the option "Installation in chemically active environment", the analog input
"TmpExt C" will be allocated to a temperature sensor PT 100 at the factory. In this case, the ambient
temperature will be measured outside the Sunny Central and will influence its operation behavior.
External Signals
In addition to the analog sensors, three further signals can be connected: ExtAlarm, ExtSolP and
ExtSolQ. These signals have a direct effect on the operation of the Sunny Central. The analog inputs
ExtSolP and ExtSolQ serve to regulate active and reactive power.
This section describes how to activate the display of the sensors on the Sunny Central Control and
how to configure them. The electrical connection of the sensors is described in the Sunny Central
installation guide.
Overview of Analog Inputs
Input Meaning
ExtSolP External setpoint specification for active power
ExtSolIrr External radiation sensor
ExtGloIrr Pyranometer (measurement of incident solar irradiation)
ExtAlarm External alarm input, e.g. for monitoring the function of the medium-voltage
transformer
ExtSolQ External setpoint specification for reactive power
TmpExt C External temperature sensor / PT 100 (will be supported only with option
"Installation in chemically active environment")