In rare cases, long control cables and analog signals could
result in 50/60 Hz ground loops due to noise from mains
supply cables. If this occurs, break the screen or insert a
100 nF capacitor between screen and chassis.
The digital and analog inputs and outputs must be
connected separately to the common inputs (terminal 20
and 55) of the frequency converter to avoid ground
currents from both groups to affect other groups. For
example, switching on the digital input could disturb the
analog input signal.
Input polarity of control terminals
12
18
19
27
29
31
32
33
20
+24
VDC
0
VDC
130BD367.10
PNP (Source)
Digital input wiring
Illustration 1.4 PNP (Source)
NPN (Sink)
Digital input wiring
12
18
19
27
29
31
32
33
20
+24
VDC
0
VDC
130BD368.11
Illustration 1.5 NPN (Sink)
NOTICE
Control cables must be screened/armoured.
See the section
Using Screened Control Cables
in the
design
guide
for the correct termination of control cables.
130BA681.10
Illustration 1.6 Grounding of Screened/Armoured 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
).
12 18 19
130BD369.10
32
29
27
31
33 20
P 5-12 [0]
P 5-10 [8]
Start/Stop
+24V
Speed
Start/Stop
[18]
Illustration 1.7 Start/Stop
Introduction
VLT
®
AutomationDrive FC 360
8
Danfoss A/S © 7/2015 All rights reserved.
MG06C602
1
1
