To avoid ground currents from both groups to affect other groups, connect the digital and analog inputs and outputs
separately to the common inputs (terminals 20, 55, and 39) of the frequency converter. For example, switching on the digital
input may disturb the analog input signal.
Input polarity of control terminals
12
13
18
19
27
29
32
33
20
37
+24
VDC
0
VDC
130B
T106.10
PNP (Source)
Digital input wiring
Illustration 1.3 PNP (Source)
NPN (Sink)
Digital input wiring
12
13
18
19
27
29
32
33
20
37
+24
VDC
0
VDC
130B
T107.11
Illustration 1.4 NPN (Sink)
NOTICE
Control cables must be shielded/armored.
See the section
Grounding of 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
1.5.1 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
[2] Coast inverse
).
Terminal 37 = Safe Torque Off (where available).
12 13 18
37
130BA155.12
32
27
19
29
33 20
P 5-12 [0]
P 5-10 [8]
Start/Stop
+24V
Speed
Safe Stop
Start/Stop
[18]
Illustration 1.6 Start/Stop
Introduction
VLT
®
AutomationDrive FC 301/302
10
Danfoss A/S © 10/2018 All rights reserved.
MG33MP02
1
1
Summary of Contents for VLT AutomationDrive FC 302
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