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The digital and analog inputs and outputs must be connected separately to the common inputs (terminal 20, 55, 39) of the adjustable frequency drive
to avoid ground currents from both groups to affect other groups. For example, switching on the digital input may disturb the analog input signal.
Input polarity of control terminals
NOTE!
Control cables must be shielded/armored.
See section entitled
Grounding of Shielded/Armored Control Cables
for
the correct termination of control cables.
130BA681.10
130BA681.10
8 Electrical Installation
FC 300 Design Guide
8-40
MG.33.BC.22 - VLT
®
is a registered Danfoss trademark
8