Dip Switches; Serial Communication; Connection To Pc - Danfoss VLT Decentral Drive FCD 302 Operating Manual

Installation
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Min. 16 mm (4 AWG)
2 Equalizing conductor

2.4.13 DIP Switches

•
Analog input terminals 53 and 54 can select for
either voltage (0-10 V) or current (0-20 mA) input
signals.
•
Set switches S201 (terminal 53) and S202
(terminal 54) to select the signal type. ON is for
current, OFF for voltage.
•
Terminal 53 default is for a speed reference in
open loop.
•
Terminal 54 default is for a feedback signal in
closed loop.
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1 S201 - terminal 53
2 S202 - terminal 54
3 S801 - standard bus termination
4 Profibus termination
5 Fieldbus address
Illustration 2.25 Location of DIP Switches
NOTICE
Switches 4 and 5 are only valid for units fitted with
fieldbus options.

2.4.14 Serial Communication

Connect RS485 serial communication wiring to terminals
(+)68 and (-)69.
•
Switch S801 (BUS TER.) can be used to enable
termination on the RS485 port (terminals 68 and
69). See Illustration 2.25.
•
Shielded serial communication cable is
recommended
•
See chapter 2.4.11 Earth (Grounding) Requirements
for proper grounding
MG04F402
Operating Guide
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4
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Danfoss A/S © 05/2016 All rights reserved.
•
Two communication protocols are internal to the
frequency converter
-
Danfoss FC
- Modbus RTU
•
For basic serial communication setup, select the
following
- Protocol type in parameter 8-30 Protocol
- Frequency converter address in
parameter 8-31 Address
-
Baud rate in parameter 8-32 Baud Rate
•
Functions can be programmed remotely using
the protocol software and RS485 connection or in
parameter group 8-** Communications and Options
•
Selecting a specific communication protocol
changes various default parameter settings to
match that specifications of the protocol along
with making additional protocol-specific
parameters available
•
Control card options are available to provide
additional communication protocols. See the
option-card documentation for installation and
operation instructions
- PROFIBUS
-
Ethernet IP
- PROFINET

2.4.15 Connection to PC

To control the frequency converter from a PC, install the
MCT 10 Set-up Software.
The PC is connected via a standard (host/device) USB
cable, or via the RS485 interface.
Illustration 2.26 Electronic Part
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25