1.2 Introduction
1.2.1 Available Literature
This quick guide contains the basic information necessary
for installing and running the frequency converter. If more
information is needed, literature can be found on the
enclosed cd or downloaded from:
http://www.danfoss.com/Products/Literature/Technical
+Documentation.htm
1.2.2 Approvals
1.2.3 IT Mains
CAUTION
IT Mains
Installation on isolated mains source, i.e. IT mains.
Max. supply voltage allowed when connected to mains:
440 V (3 x 380-480 V units).
On IP20 200-240 V 0.25-11 kW and 380-480 V IP20 0.37-22
kW, open the RFI switch by removing the screw on the
side of the frequency converter when at IT grid.
130BB612.10
1
Illustration 1.1 IP20 200-240 V 0.25-11 kW, IP20 0.37-22 kW
380-480 V.
1: EMC screw
130BC251.10
Illustration 1.2 IP54 400 V 0.75-18.5 kW
1: EMC screw
On all units, set par. 14-50
RFI filter
to
OFF
when operating
in IT mains.
CAUTION
If reinserted, only use M3 x 12 screw.
1.2.4 Avoid Unintended Start
While the frequency converter is connected to mains, the
motor can be started/stopped using digital commands, bus
commands, references or via the LCP.
•
Disconnect the frequency converter from mains
whenever personal safety considerations make it
necessary to avoid unintended start of any
motors.
•
To avoid unintended start, always activate the
[OFF] key before changing parameters.
Quick Guide
VLT HVAC Basic Drive Quick Guide
MG18A302 - VLT
®
is a registered Danfoss trademark
3
1
1
