Technical data

VLT
®
2800 Series
■ Display readout
Fr
The frequency converter shows the present
output frequency in Hertz [Hz].
Io
The frequency converter shows the present
output current in Amps [A].
Uo
The frequency converter shows the present
output voltage in Volt [V].
Ud
The frequency converter shows the intermediate
circuit voltage in Volt [V].
Po
The frequency converter shows the calculated
output in kilowatt [kW].
notrun
This message is shown if an attempt is made to
change a parameter value while the motor is running.
Stop the motor to change the parameter value.
LCP
This message is shown if an LCP 2 control unit is
fitted and the [QUICK MENU] or [CHANGE DATA]
key is activated. If an LCP 2 control unit is fitted
you can only change parameters with that.
Ha
The frequency converter shows the present Hand
mode reference frequency in Herz (Hz).
SC
The frequency converter shows scaled output frequency
(the present output frequency x parameter 008).
■ Warnings/alarm messages
A warning or an alarm will appear in the display
as a numerical code Err. xx.Awarningwill
be shown on the display until the fault has
been corrected, while an alarm will continue to
flash until the [STOP/RESET] key is activated.
The table shows the various warnings and alarms, and
whether the fault locks the frequency converter. After
a Trip locked the mains supply is cut off and the fault
is corrected. The mains supply is reconnected and the
frequency converter is reset. The frequency converter is
now ready. A Trip can be reset manually in three ways:
1. Via the operating key [STOP/RESET].
2. Via a digital input.
3. Via serial communication.
It is also possible to choose an automatic reset in
parameter 405 Reset function. When a cross appears
in both warning and alarm, this can mean that a
warning comes before an alarm. It can also mean
that it is possible for the user to programme whether
a warning or an alarm will appear for a given fault.
For example, this is possible in parameter 128 Motor
thermal protection.Afteratripthemotorwillcoast,
and alarm and warning will blink on the frequency
converter, but if the fault disappears only the alarm
will blink. After a reset the frequency converter
will be ready to start operation again.
MG.28.A9.02 - VLT is a registered Danfoss trademark
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