Danfoss VLT HVAC Drive Metasys N2 Manual page 6

2. Instructions
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Illustration 2.1: Bus termination switch
In order to avoid potential equalizing currents in the screen, earth the cable screen via terminal
61, which is connected to the frame via an RC-link.
Bus termination: The RS485 bus must be terminated by a resistor network at both ends. For this
purpose, set switch S801 on the control card to "ON". For more information, see the paragraph:
Switches S201, S202 and S801.
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NB!
Communication protocol must be set to FC MC par. 8-30.
MG.11.G1.02 - VLT ® is a registered Danfoss trademark
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VLT HVAC Drive Metasys N2