Safety; High Voltage Test; Safety Earth Connection - Danfoss VLT Micro Drive FC 51 Design Manual

How to Install
The PC-based Configuration Tool MCT 10 Set-up Software
modules
The following modules are included in the software
package:
6 6
Table 6.11
Ordering number:
Please order the CD containing the PC-based Configuration
Tool MCT 10 Set-up Software using code number
130B1000.
MCT 10 Set-up Software can also be downloaded from the
DanfossInternet: Danfoss website /BusinessAreas/DrivesSo-
lutions/Softwaredownload/DDPC+Software+Program.htm.

6.20 Safety

6.20.1 High Voltage Test

Carry out a high voltage test by short-circuiting terminals
U, V, W, L , L
1 2
380-500 V frequency converters and 2.525 kV DC for
525-690 V frequency converters for one second between
this short-circuit and the chassis.
WARNING
When running high voltage tests of the entire installation,
interrupt the mains and motor connection if the leakage
currents are too high.
Failure to follow recommendations could result in death or
serious injury.
62
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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
and L . Energize maximum 2.15 kV DC for
3
MG02K202 - VLT
®
VLT Micro Drive FC 51 Design Guide

6.20.2 Safety Earth Connection

The frequency converter has a high leakage current and
must be earthed appropriately for safety reasons according
to EN 50178.
WARNING
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
earth wires terminated separately.
®
is a registered Danfoss trademark
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or 2 rated