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VLT® 4000 VT
[+/-] is used for selecting parameters
and for changing a chosen parameter.
These keys are also used to change
the local reference.
In addition, the keys are used in
Display mode to switch between
operation variable readouts.
[<>] is used when selecting a
parameter group and for moving the
cursor when changing numerical
values.
■
Indicator lamps
At the bottom of the control panel is a red
alarm lamp and a yellow warning lamp, as well
as a green voltage LED.
If certain threshold values are exceeded, the
alarm and/ or warning lamp is activated, and a
status or alarm text is displayed.
NOTE
The voltage indicator lamp is activated when
the AFD receives voltage.
■
Local control
Underneath the indicator lamps are keys
for local control.
[HAND START] is used if the VLT AFD
is to be controlled via the control unit.
The VLT AFD will start the motor, since
a start command is given by means of
[HAND START].
On the control terminals, the following
control signals will still be active when
[HAND START] is activated:
•
Hand start - Off stop - Auto start
•
Safety Interlock
•
Reset
•
Coasting stop inverse
•
Reversing
•
Setup select lsb - Setup select msb
•
Jog
•
Run permissive
•
Lock for data change
•
Stop command from serial
communication
NOTE
If parameter 201
Output frequency low limit
f
MIN
is set to an output frequency greater than
0 Hz, the motor will start and ramp up to this
frequency when [HAND START] is activated.
[OFF/STOP] is used for stopping the
connected motor. Can be selected as
Enable [1] or Disable [0] via parameter
013. If the stop function is activated,
line 2 will flash.
[AUTO START] is used if the VLT AFD
is to be controlled via the control
terminals and/or serial communication.
When a start signal is active on the
control terminals and/or the bus, the
VLT AFD will start.
NOTE
An active HAND-OFF-AUTO signal via the digital
inputs will have higher priority than the control
keys [HAND START]-[AUTO START].
[RESET] is used for resetting the VLT
AFD after an alarm (trip). Can be
selected as
Enable
[1] or
Disable
[0] via
parameter 015
Reset on LCP
.
MG.40.A4.22 - VLT is a registered Danfoss trademark
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