Input Polarity Of Control Terminals - Danfoss VLT FC 102 Programming Manual

Programming Guide | VLT® HVAC Drive FC 102
To avoid that ground currents from both long cables and analog signals affect other groups, connect the digital and analog inputs and
outputs separately to the common inputs (terminals 20, 55, and 39) of the drive. For example, switching on the digital input may disturb
the analog input signal.

Input Polarity of Control Terminals

3.2
Control cables must be shielded.
PNP (Source)
Digital input wiring
12 13 18 19
Figure 2: PNP (Source)
© 2024.10
27 29 32 33
NOTICE
20 37
Electrical Diagrams
AU430028034214en-001901 / 130R0310 | 19