Danfoss VLT 5000 FLUX, Руководство по эксплуатации, Страница: 90 / 158

VLT
®
5000 FLUX
Stop inverted Inverted function. Generates stop
function when the selected terminal goes from logical
level ’ 1 ’ to ’ 0 ’ . Stop will be performed according to
the selected ramp time (Parameter 207-210).
None of the above-mentioned stop
commands (start-disable) are to be used
as disconnection switch in connection
with repairs. Cut mains instead.
NB!:
Note that when the frequency converter is
at the torque limit and has received a stop
command, it will only stop if an output terminal
(42, 45, 01 or 04) has been connected to terminal
27. The data choice on output terminal 42, 45, 01
or 04 must be Torque limit and stop [27].
Start is selected if a start/stop (operating
command, group 2) command is desired. Logic
’ 1 ’ = start, logic ’ 0 ’ = stop.
Latched start - if a pulse is applied for min. 3 ms,
the motor will start, provided no stop command
(operating command, group 2). The motor stops
if Stop inverse is activated.
Reversing Changing the direction of rotation of the
motor shaft. Logic "1" will lead to reversing. The
reversing signal only changes the direction of rotation;
it does not activate the start function.
Both directions must be selected in parameter 200.
Is not active in Torque control, speed feedback .
Start reversing , is used for start/stop (operating
command, group 2) and for reversing on the same
wire. No signal is allowed on terminal 18 at the same
time. Acts as latch start reversing, provided latch
start has been chosen for terminal 18.
Start clockwise only is used when the motor shaft
must rotate clockwise when starting.
Start anti-clockwise only , is used if the motor shaft
must rotate counter-clockwise when started.
Jog is used for overriding the output speed to the
jog speed set in parameter 213. The ramp time
can be set in parameter 211. Jog is not active if
a stop command has been given (start-disable).
Jog overrides stop (operating command, group
2), see connection example.
Preset reference, on is used for shifting between
external reference and preset reference. It is assumed
that External/preset [2] has been selected in parameter
214. Logic ’ 0 ’ = external references active; logic
’ 1 ’ = one of the four preset references is active
in accordance with the table below.
Preset reference, LSB and MSB Selects one
of the four preset references, in accordance
with the table below.
Preset ref. msb Preset ref. lsb
Preset ref. 1 0 0
Preset ref. 2 0 1
Preset ref. 3 1 0
Preset ref. 4 1 1
Freeze reference - freezes the actual reference.
The reference is now the point of reference for
Speed up and Speed down to be used.
If speed up/down is used, the reference change
always follows ramp 2 (parameters 209/210)
in the range 0 - Ref
MAX
.
Freeze output - freezes the actual motor speed
(rpm). The frozen motor frequency is now the
point of enable/condition for Speed up and
Speed down to be used.
If speed up/down is used, the reference change
always follows ramp 2 (parameters 209/210)
in the range 0 - n
MAX
.
NB!:
If Freeze output is active, the frequency
converter cannot be stopped via terminals
18 and 19, but only via terminal 27 (to be
programmed for Coasting stop, inverse [0] or Reset
and coasting stop, inverse [1]). However, the frequency
converter can always be stopped via the stop signals
(Coasting, Quick-stop, DC-braking and Stop inverse).
Speed up/Speed down For speed up/down control
of speed (motor potentiometer). This function is only
active if Freeze reference or Freeze output has been
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.55.A6.02 - VLT is a registered Danfoss trademark
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