Danfoss VLT HVAC, Design Manual, Page: 113 / 200

The PC-based Configuration Tool MCT 10 modules
The following modules are included in the software package:
MCT 10 Set-up Software
Setting parameters
Copy to and from frequency converters
Documentation and print out of parameter settings incl. diagrams
Ext. User Interface
Preventive Maintenance Schedule
Clock settings
Timed Action Programming
Smart Logic Controller Set-up
Ordering number:
Please order your CD containing the PC-based Configuration Tool MCT 10 using code number 130B1000.
MCT 10 can also be downloaded from the Danfoss Internet: http://www.danfoss.com/BusinessAreas/DrivesSolutions/Softwaredownload/DDPC+Software
+Program.htm
.
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 different additional harmonic reduction devices, such as Danfoss AHF
filters and 12-18-pulse rectifiers, can be calculated.
Ordering number:
Please order your CD containing the MCT 31 PC tool using code number 130B1031.
MCT 31 can also be downloaded from the Danfoss Internet: http://www.danfoss.com/BusinessAreas/DrivesSolutions/Softwaredownload/DDPC+Software
+Program.htm .
5.6 Safety
5.6.1 High Voltage Test
Carry out a high voltage test by short-circuiting terminals U, V, W, L
1
, L
2
and L
3
. Energize maximum 2.15 kV DC for 380-500V frequency converters and
2.525 kV DC for 525-690V frequency converters for one second between this short-circuit and the chassis.
When running high voltage tests of the entire installation, interrupt the mains and motor connection if the leakage currents are too
high.
5.6.2 Safety Earth Connection
The frequency converter has a high leakage current and must be earthed appropriately for safety reasons acording to EN 50178.
The earth leakage current from the frequency converter exceeds 3.5 mA. To ensure a good mechanical connection from the earth
cable to the earth connection (terminal 95), the cable cross-section must be at least 10 mm
2
or 2 rated earth wires terminated sepa-
rately.
VLT ® HVAC Drive Design Guide 5 How to Install
MG.11.B9.02 - VLT
®
is a registered Danfoss trademark
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