Control unit
The frequency converter is always supplied with an
integral control unit.
All displays are in the form of a six-digit LED display
capable of showing one item of operating data contin-
uously during normal operation. As a supplement to
the display, there are three indicator lamps for voltage
(ON), warning (WARNING) and alarm (ALARM). Most
of the frequency converter's parameter Setups can be
changed immediately via the integral control panel.
An LCP 2 control panel to be connected via a plug to
the front of the frequency converter is available as an
option. The LCP 2 control panel can be installed up to
3 metres away from the frequency converter, e.g. on
a front panel, by means of the accompanying mounting
kit.
All displays of data are via a 4-line alpha-numerical
display, which in normal operation is able to show 4
operating data items and 3 operation modes continu-
ously. During programming, all the information re-
quired for quick, efficient parameter Setup of the
frequency converter is displayed. As a supplement to
the display, there are three indicator lamps for voltage
(ON), warning (WARNING) and alarm (ALARM). Most
of the frequency converter's parameter Setups can be
changed immediately via the LCP 2 control panel. See
also the section entitled
The LCP 2 control unit
in the
Design Guide.
FC protocol
Danfoss frequency converters are able to fulfill many
different functions in a monitoring SYSTEM. The fre-
quency converter can be integrated directly in an over-
all surveillance SYSTEM, which will allow detailed
process data to be transferred via serial communica-
tion.
The protocol standard is based on an RS 485 bus
SYSTEM with a maximum transmission speed of 9600
baud. The following Drive profiles are supported as
standard:
-
FC Drive, which is a profile adapted to Dan-
foss.
-
Profidrive, which supports the profidrive pro-
file.
See
Serial communication
for further details of tele-
gram structure and Drive profile.
Fieldbus option
The increasing information requirements in industry
make it necessary to collect or visualize many different
process data. Important process data help the system
technician with the daily monitoring of the system. The
large amounts of data involved in major systems make
a higher transmission speed than 9600 baud desira-
ble.
Fieldbus option
Profibus
Profibus is a fieldbus system, which can be used for
linking automation devices such as sensors and ac-
tuators with the controls by means of a two-conductor
cable. Profibus DP is a very fast communication pro-
tocol, made specially for communication between the
automation system and various types of equipment.
Profibus is a registered trade mark.
DeviceNet
DeviceNet fieldbus systems can be used for linking
automation devices such as sensors and actuators
with the controls by means of a four-wire conductor
cable.
DeviceNet is a medium speed communication proto-
col, made specially for communication between the
automation system and various types of equipment.
Units with DeviceNet protocol cannot be controlled by
FC protocol and Profidrive protocol.
VLT Software Dialog can be used on the Sub D plug.
MG.27.E2.02 - VLT is a registered Danfoss trademark
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VLT 280
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