Feedback via analog signal
When using multiple Cluster Controllers, you must connect one remote terminal to the analog
current outputs of each Cluster Controller (see Section 6.12.5.3, page 59).
6.13 Checking the Connections via the Display
You can use the Cluster Controller display to check whether the connections have been made
correctly and whether all inverters, sensors and remote terminals have been detected by the
Cluster Controller. The content of the display views takes one or two seconds to update. For
technical reasons, presentation on the display depends on the ambient temperature and may be
correspondingly delayed in the event of low ambient temperature.
Procedure:
1. Select the display view
System status
.
2. Check whether the correct number of connected inverters is displayed in the line
Number of
devices
. If the correct number of connected inverters is not displayed, ensure that all inverters
are connected correctly (see Section 7.2, page 70).
3. When using digital inputs, select the display view
Digital inputs
.
4. Check whether the expected binary values are displayed in the lines
Digital input group 1
and
Digital input group 2
. If the expected binary values are not displayed, ensure that the
digital signal source is correctly connected (see Section 6.12.2, page 48).
5. When using the analog inputs, select the display view
Analog inputs
.
6. If an analog signal source or a sensor is connected, check whether a current signal is
displayed in the lines
Analog current input 1
,
Analog current input 2
or
Analog current
input 3
. If no current signal is displayed, ensure that the analog signal source is correctly
connected (see Section 6.12.3, page 54) or the sensor is correctly connected (see
Section 6.11.3, page 44).
7. If a sensor is connected to the pin group
Analog voltage input 4
, check whether a
measured value is displayed in the line
Analog voltage input 4
. If no measured value is
displayed, ensure that the sensor is connected correctly (see Section 6.11.3, page 44).
8. If an irradiation sensor or a temperature sensor is connected, select the display view
Meteorology
.
9. Check whether measured values are displayed for each connected sensor. If no measured
values are displayed for the connected temperature sensor, ensure that the temperature sensor
is correctly connected (see Section 6.11.1, page 40). If no measured values are displayed for
the connected irradiation sensor, either the characteristic curve of the irradiation sensor is not
configured or the irradiation sensor is not correctly connected.
• Ensure that the characteristic curve of the irradiation sensor is configured (see the
Cluster Controller user manual).
• Ensure that the irradiation sensor is correctly connected (see Section 6.11.3, page 44).
6 Connection and Commissioning
SMA Solar Technology AG
Installation Manual
ClusterController-IA-en-15
64
