Danfoss VLT FCD 302 Operating Manual page 38

Operating Guide | VLT® Decentral Drive FCD 302
1 S201 - terminal 53
3 S801 - standard bus termination
5
Fieldbus address
Switches 4 and 5 are only valid for units fitted with fieldbus options.
Refer to VLT® PROFIBUS® DP-V1 MCA 101 Programming Guide for further information.
5.7 Serial Communication
5.7.1 Introduction to RS485 Serial Communication
Use a shielded serial communication cable.
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See 4.4 Grounding for proper grounding.
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2 communication protocols are internal to the drive:
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Danfoss FC.
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Modbus RTU.
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Functions can be programmed remotely using the protocol software and RS485 connection or in parameter group 8-**
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Communications and Options.
Selecting a specific communication protocol changes various default parameter settings to match the specifications of that
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protocol, and makes more protocol-specific parameters available.
Option cards for the drive are available to provide extra communication protocols. See the option card documentation for
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installation and operating guides.
5.7.2 Connecting and Setting Up RS485
Connect RS485 serial communication wiring to terminals (+)68 and (-)69.
61
68
69
Figure 27: Serial Communication Wiring Diagram
Select the following for basic serial communication setup:
Protocol type in parameter 8–30 Protocol.
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Drive address in parameter 8–31 Address.
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Baud rate in parameter 8–32 Baud Rate.
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5.8 Safe Torque Off (STO)
Additional wiring for the drive is required to run safe torque off (STO).
38 | Danfoss A/S © 2025.04
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RS485
2 S202 - terminal 54
4 PROFIBUS® termination
Controls and Options Installation
AQ267036816112en-000301 / 130R0208