Danfoss VLT AQUA Drive

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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 RS-485 bus must be terminated by a resistor network at both ends. If the drive is the first or the last device in the RS-485 loop, set the switch S801

on the control card for ON.

For more information, see the paragraph

Switches S201, S202, and S801

7.1.13. How to Connect a PC to the Frequency Converter

To control or programme the frequency converter from a PC, install the MCT 10 Set-up software on the computer.

The PC is connected via a standard (host/device) USB cable, or via the RS-485 interface as shown in the VLT

AQUA Drive FC 200 Design Guide chapter

How to Install > Installation of misc. connections.

NB!

The USB connection is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals. The USB connection is

connected to protection earth on the frequency converter. Use only isolated laptop as PC connection to the USB connector on the

frequency converter.