Safe Torque Off (Sto) - Danfoss VLT AQUA Drive FC 202 Installation Manual

Electrical Installation
PNP (Source)
Digital input wiring
12 13 18 19 27
Figure 4.13 Input Polarity of Control Terminals, PNP
NPN (Sink)
Digital input wiring
12 13 18 19 27
Figure 4.14 Input Polarity of Control Terminals, NPN
NOTICE!
To comply with EMC emission specifications, shielded/
armored cables are recommended. If using non-shielded/
armored cable, see chapter 4.7.3 Power and Control Wiring
for Non-shielded Cables. If using non-shielded control
cables, use ferrite cores to improve EMC performance.
MG21B322
Installation Manual
29 32 33 20 37
29 32 33 20 37
Danfoss A/S © 10/2015 All rights reserved.
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Figure 4.15 Connecting Shielded Cables
Connect the shields in a proper way to ensure optimum
electrical immunity.

4.8.5 Safe Torque Off (STO)

To run STO, additional wiring for the frequency converter is
®
required. Refer to VLT Frequency Converters Safe Torque Off
Operating Instructions for further information.
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45
4 4