WARNING
EQUIPMENT HAZARD
Contact with rotating shafts and electrical equipment
can result in death or serious injury.
•
Ensure that only trained and qualied personnel
perform installation, start-up, and maintenance.
•
Ensure that electrical work conforms to national
and local electrical codes.
•
Follow the procedures in this manual.
CAUTION
INTERNAL FAILURE HAZARD
An internal failure in the frequency converter can result
in serious injury when the frequency converter is not
properly closed.
•
Ensure that all safety covers are in place and
securely fastened before applying power.
1.5 Additional Resources
•
VLT
®
HVAC Basic Drive FC 101 Quick Guide provides
basic information on mechanical dimensions,
installation, and programming.
•
VLT
®
HVAC Basic Drive FC 101 Design Guide
provides information on how to design motor
control systems.
•
Danfoss VLT
®
Energy Box software. Select PC
Software Download at vlt-drives.danfoss.com/
products/engineering-software/software-download/
vlt-energy-box-software/.
VLT
®
Energy Box software allows energy
consumption comparisons of HVAC fans and
pumps driven by Danfoss frequency converters
and alternative methods of ow control. Use this
tool to project the costs, savings, and payback of
using Danfoss frequency converters on HVAC
fans, pumps, and cooling towers.
The technical documentation is available in electronic form
online at drives.danfoss.com/knowledge-center/technical-
documentation/.
MCT 10 Setup Software support
Download the software from www.danfoss.com/en/service-
and-support/downloads/dds/vlt-motion-control-tool-mct-10/.
During the installation process of the software, enter
access code 81463800 to activate the FC 101 functionality.
A license key is not required for using the FC 101
functionality.
The latest software does not always contain the latest
updates for frequency converters. Contact the local sales
oce for the latest frequency converter updates (in the
form of *.upd les), or download the frequency converter
updates from www.danfoss.com/en/service-and-support/
downloads/dds/vlt-motion-control-tool-mct-10/#Overview.
1.6 Denitions
Frequency converter
I
VLT, MAX
The maximum output current.
I
VLT,N
The rated output current supplied by the frequency
converter.
U
VLT, MAX
The maximum output voltage.
Input
The connected motor can start and stop via LCP and
digital inputs. Functions are divided into 2 groups, as
described in Table 1.4. Functions in group 1 have higher
priority than functions in group 2.
Group 1
Reset, coast stop, reset and coast stop, quick
stop, DC brake, stop, and [O].
Group 2
Start, pulse start, reversing, start reversing, jog,
and freeze output.
Table 1.4 Control Commands
Motor
f
JOG
The motor frequency when the jog function is activated
(via digital terminals).
f
M
The motor frequency.
f
MAX
The maximum motor frequency.
f
MIN
The minimum motor frequency.
f
M,N
The rated motor frequency (nameplate data).
I
M
The motor current.
I
M,N
The rated motor current (nameplate data).
n
M,N
The nominal motor speed (nameplate data).
P
M,N
The rated motor power (nameplate data).
U
M
The instantaneous motor voltage.
U
M,N
The rated motor voltage (nameplate data).
Introduction Programming Guide
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