Display readout
Fr
The frequency converter shows the present output fre-
quency 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 cir-
cuit 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 fre-
quency (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. A warning will 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 re-
connected 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 pa-
rameter 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 pos-
sible 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 protec-
tion. After a trip the motor will coast, 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.
VLT
®
2800 Series
MG.27.A2.02 - VLT
®
is a registered Danfoss trademark 77
All about VLT 2800
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