Complete The Installation; Connections To Vsn750 Series Products - ABB VSN800 Product Manual

Connect PV Panel Sensor (VSN800-12 Model)
The PV panel temperature sensor is not polarity sensitive. Therefore, each signal wire is
interchangeable. The sensor comes with a 25ft length of cable. If a temperature sensor is not
used, it should be terminated with a 0-ohm shunt between the positive and negative signal.
PV Temperature Terminal, 1
PV Temp #1:
PV Temp #1:
Shield:

Complete the Installation

1.
2.
3.

Connections to VSN750 series products

This section shows how to tap the 24VDC power and make RS485 connections from a
VSN750 series management system. Most other monitoring systems will have a means of
supplying 24VDC power. Consult your monitoring system documentation for information.
1.
2.
Sensor
st
Properly ground the weather station by connecting the Earth GND terminal at the
Weather Station to an earth ground. Connecting the Earth GND helps ensure the
accuracy of weather instruments.
Re-attach the cover to the connection case using the four screws. Make sure not to
pinch the newly connected 24VDC or RS485 wires coming out of the case bottom.
Note that the cover only goes on one way with the opening for wires at the bottom.
If necessary, complete the pole mounting of the weather station.
After making the correct 24VDC and RS485 attachments to the weather station, run
cable from the weather station to the VSN750. Note that connections for power can be
made to the VSN750 or directly to another 24 VDC power supply
Connect the wires for the 24VDC power and RS485 to the VSN750. See the figure
below. Note that some VSN750 models may have RS485 connection points in other
locations.
VSN800 Weather Station Product Manual
PV Panel
Temperature Sensor
Signal (Black or White)
Signal (Black or White)
Cable Shield and Drain (bare)
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