Danfoss VLT AutomationDrive FC 300 Design Guide

Figure 7.44 Interconnect Diagram, E- and F-Frame Adjustable Frequency Drives
Very long control cables and analog signals may result in 50/60 Hz ground loops due to noise from line power supply
cables. If this occurs, it may be necessary to break the shield or insert a 100 nF capacitor between shield and chassis.
Connect the digital and analog inputs and outputs separately to the common inputs (terminal 20, 55, 39) of the adjustable
frequency drive to avoid ground currents from both groups affecting other groups. For example, switching on the digital
input may disturb the analog input signal.
Electrical Installation
Design Guide
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Danfoss VLT AutomationDrive FC 300 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 300
Category	DC Drives
Language	English