Danfoss VLT Midi Drive FC-280P4K0 [10/136] Start stop

Danfoss VLT Midi Drive FC-280P18K [10/136] Start stop
In rare cases, long control cables and analog signals result
in 50/60 Hz ground loops due to noise from mains supply
cables. If this occurs, 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 55) of the
frequency converter to avoid that ground currents from
both groups aect other groups. For example, switching
on the digital input could disturb the analog input signal.
Input polarity of control terminals
130BE730.10
12 13 18 19 27 29 32 33 55
+24 VDC
0 VDC
PNP (Source)
Digital input wiring
Illustration 1.3 PNP (Source)
NPN (Sink)
Digital input wiring
12 13 18 19 27 29 32 33 55
+24 VDC
0 VDC
130BE731.10
Illustration 1.4 NPN (Sink)
NOTICE
Control cables must be shielded/armored.
See the section Using Shielded Control Cables in the design
guide for the correct termination of control cables.
130BA681.10
Illustration 1.5 Grounding of Shielded/Armored Control Cables
1.3.2 Start/Stop
Terminal 18 = Parameter 5-10 Terminal 18 Digital Input [8]
Start.
Terminal 27 = Parameter 5-12 Terminal 27 Digital Input [0]
No operation (Default coast inverse).
130BE732.10
12 13 18 322719 29 33
P 5-12 [2]
P 5-10 [8]
Start/Stop
+24V
Speed
Start/Stop
[18]
Illustration 1.6 Start/Stop
Introduction
VLT
®
Midi Drive FC 280
8 Danfoss A/S © 03/2016 All rights reserved. MG07C202
11

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