Introduction; Available Literature; Approvals; It Line Power - Danfoss VLT FC 101 Quick Manual

Quick Guide
1 1

1.2 Introduction

1.2.1 Available Literature

This quick guide contains the basic information necessary
for installing and running the Adjustable frequency drive. If
more information is needed, literature can be found on the
enclosed CD or downloaded from:
http://www.danfoss.com/BusinessAreas/DrivesSolutions/
Documentations/Technical+Documentation.htm

1.2.2 Approvals

Table 1.2

1.2.3 IT Line Power

CAUTION
IT Line Power
Installation on an isolated line power source, i.e., IT line
power.
Max. supply voltage allowed when connected to line
power: 440 V (3 x 380–480 V units).
On IP20 200–240 V 0.34–15 hp [0.25–11 kW] and 380–480
V IP20 0.5–30 hp [0.37–22 kW], open the RFI switch by
removing the screw on the side of the Adjustable
frequency drive when at IT grid.
Figure 1.1 IP20 200–240 V 0.34–15 hp [0.25–11 kW], IP20 0.5–30
hp [0.37–22 kW] 380–480 V.
1: EMC screw
1-2
VLT HVAC Basic Drive Quick Guide
1
MG18A322 - VLT
Figure 1.2 IP54 400 V 1–25 hp [0.75–18.5 kW]
1: EMC screw
On all units, set par. 14-50 RFI filter to OFF when operating
in IT line power.
CAUTION
If reinserted, only use M3 x 12 screw.

1.2.4 Avoid Unintended Start

While the Adjustable frequency drive is connected to line
power, the motor can be started/stopped using digital
commands, bus commands, references or via the LCP.
•
Disconnect the Adjustable frequency drive from
line power whenever personal safety consider-
ations make it necessary to avoid unintended
start of any motors.
•
To avoid unintended start, always activate the
[OFF] key before changing parameters.
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is a registered Danfoss trademark