2.8.2 PC Software
The PC is connected via a standard (host/device) USB
cable, or via the RS485 interface.
USB is a serial bus utilising 4 screened wires with ground
pin 4 connected to the screen in the PC USB port. By
connecting the PC to a frequency converter through the
USB cable, there is a potential risk of damaging the PC USB
host controller. All standard PCs are manufactured without
galvanic isolation in the USB port.
Any ground potential difference caused by not following
the recommendations described in the
operating
instructions
, can damage the USB host controller through
the screen of the USB cable.
When connecting the PC to a frequency converter through
a USB cable, use a USB isolator with galvanic isolation to
protect the PC USB host controller from ground potential
differences.
Do not use a PC power cable with a ground plug when
the PC is connected to the frequency converter through a
USB cable. It reduces the ground potential difference, but
does not eliminate all potential differences due to the
ground and screen connected in the PC USB port.
130B
T308.10
Illustration 2.22 USB Connection
2.8.2.1 MCT 10 Set-up Software
The MCT 10 Set-up Software is designed for commis-
sioning and servicing the frequency converter including
guided programming of pack controller, real time clock,
smart logic controller, and preventive maintenance.
This software provides easy control of details as well as a
general overview of systems, large, or small. The tool
handles all frequency converter series, VLT
®
Advanced
Active Filters AAF 006 and VLT
®
Soft Starter-related data.
Example 1: Data storage in PC via MCT 10 Set-up
Software
1.
Connect a PC to the unit via USB or via the RS485
interface.
2.
Open MCT 10 Set-up Software.
3.
Select the USB port or the RS485 interface.
4.
Select
copy
.
5.
Select the
project
section.
6.
Select
paste
.
7.
Select
save as
.
All parameters are now stored.
Example 2: Data transfer from PC to frequency converter
via MCT 10 Set-up Software
1.
Connect a PC to the unit via USB port or via the
RS485 interface.
2.
Open MCT 10 Set-up Software.
3.
Select
Open
– stored files are shown.
4.
Open the appropriate file.
5.
Select
Write to drive
.
All parameters are now transferred to the frequency
converter.
A separate manual for MCT 10 Set-up Software is available.
Download the software and the manual from
www.danfoss.com/BusinessAreas/DrivesSolutions/Software-
download/
2.8.2.2 VLT
®
Harmonics Calculation
Software MCT 31
The MCT 31 Harmonic Calculation PC tool enables easy
estimation of the harmonic distortion in a given
application. Both the harmonic distortion of Danfoss
frequency converters as well as non-Danfoss frequency
converters with additional harmonic reduction devices,
such as Danfoss VLT
®
Advanced Harmonic Filters AHF
005/AHF 010 filters and 12–18 pulse rectifiers, can be
calculated.
MCT 31 can also be downloaded from
BusinessAreas/DrivesSolutions/Softwaredownload/
2.8.2.3 Harmonic Calculation Software
(HCS)
HCS is an advanced version of the harmonic calculation
tool. The calculated results are compared to relevant norms
and can be printed afterwards.
For more information, see
Product Overview
Design Guide
MG16G202
Danfoss A/S © 08/2015 All rights reserved.
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Содержание VLT FC 103
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