Rs485 Power Injector - SMA SUNNY SENSORBOX Installation Manual

SMA America, LLC
Problem
Unrealistic readings
from the ambient
temperature sensor
are displayed.
Unrealistic readings
from the anemometer
are displayed.
Unrealistic readings
from the integrated
solar radiation sensor
are displayed.
11.2 RS485 Power Injector
Problem
The "Power" LED on
the RS485 Power
Injector does not light
up.
Installation Manual
Cause
The sensor is not
connected properly.
The sensor cable is
damaged.
The sensor is damaged or
dirty.
The sensor has been
deactivated and the
resistor is no longer
connected to the Sunny
SensorBox.
The requisite cable length
was ignored.
The sensor is not
connected properly.
The sensor cable is
damaged.
The sensor is damaged or
dirty.
The requisite cable length
was ignored.
The sensor is not
connected properly.
The sensor cable is
damaged.
The sensor is damaged or
dirty.
Cause
The RS485 Power Injector
does not have power.
Rectification
Make sure the sensor is connected to the right
terminal on the Sunny SensorBox.
Inspect the cable for signs of damage and
replace if necessary.
Clean the sensor.
Replace defective sensors.
Plug the resistor into the connection terminal of
the ambient temperature sensor.
Check the cable length. Adhere to the cable
length specified in the sensor manual.
Make sure the sensor is connected to the right
terminal on the Sunny SensorBox.
Inspect the cable for signs of damage and
replace if necessary.
Clean the sensor.
Replace defective sensors.
Check the cable length. Adhere to the cable
length specified in the sensor manual.
Make sure the sensor is connected to the right
terminal on the Sunny SensorBox.
Inspect the cable for signs of damage and
replace if necessary.
Clean the sensor.
Replace defective sensors.
Rectification
Make sure the plug-in power supply unit of the
RS485 Power Injector is connected to a
power outlet.
Sensorbox-eng-IA-IUS-112515
Troubleshooting
75