Operating Via Serial Communication; Bus Connection; Operating Via Pc; How To Connect A Pc To The Frequency Converter - Danfoss VLT HVAC Drive FC 102 Operating Instructions Manual

How to Operate the Frequenc...

5.2 Operating via Serial Communication

5.2.1 RS-485 Bus Connection
One or more frequency converters can be connected to a
controller (or master) using the RS-485 standard interface.
Terminal 68 is connected to the P signal (TX+, RX+), while
terminal 69 is connected to the N signal (TX-, RX-).
If more than one frequency converter is connected to a
master, use parallel connections.
5 5
Illustration 5.13 Connection Example
To avoid potential equalising currents in the screen,
ground the cable screen via terminal 61, which is
connected to the frame via an RC link.
Bus termination
Terminate the RS-485 bus by a resistor network at both
ends. If the frequency converter is the first or the last
device in the RS-485 loop, set the switch S801 on the
control card to ON.
For more information, see the paragraph Switches S201,
S202, and S801.

5.3 Operating via PC

5.3.1 How to Connect a PC to the
Frequency Converter
To control or program the frequency converter from a PC,
install the PC-based configuration tool MCT 10 Set-up
Software.
The PC is connected via a standard (host/device) USB
cable, or via the RS-485 interface as shown in
chapter 5.2.1 RS-485 Bus Connection.
NOTICE
The USB connection is galvanically isolated from the
supply voltage (PELV) and other high-voltage terminals.
The USB connection is connected to protective earth.
Use only an isolated laptop as PC connection to the USB
connector on the frequency converter.
66
Operating Instructions
RS 232
68 69 68 69
+
USB
-
RS 485
Danfoss A/S © 08/2014 All rights reserved.
Illustration 5.14 USB Connection to Frequency Converter

5.3.2 PC Software Tools

68 69
PC-based MCT 10 Set-up Software
All frequency converters are equipped with a serial
communication port. Danfoss provides a PC tool for
communication between PC and frequency converter.
Check the section in chapter 1.2.1 Additional Resources for
detailed information on this tool.
MCT 10 Set-up Software
MCT 10 Set-up Software has been designed as an easy-to-
use interactive tool for setting parameters in our frequency
converters.
The MCT 10 Set-up Software is useful for:
•
Planning a communication network off-line. MCT
10 Set-up Software contains a complete
frequency converter database.
•
Commissioning frequency converters online.
•
Saving settings for all frequency converters.
•
Replacing a frequency converter in a network.
•
Simple and accurate documentation of frequency
converter settings after commissioning.
•
Expanding an existing network.
•
Supporting future-developed frequency
converters.
MCT 10 Set-up Software supports PROFIBUS DP-V1 via a
master class 2 connection. It enables online reading/
writing of parameters in a frequency converter via the
PROFIBUS network. This network eliminates the need for
an extra communication network.
MG11F502