Danfoss VLT AutomationDrive FC 300, Руководство по программированию

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3.5.8 3-9* Digital Pot.Meter
The digital potentiometer function allows the user to
increase or decrease the actual reference by adjusting the
set-up of the digital inputs using the functions
Increase ,
Decrease or Clear . To activate the function, at least one digital
input must be set up to Increase or Decrease .
Speed
Time (s)
Inc
130BA158.11
P 3-95
Speed
Time (s)
Dec
Inc
130BA159.11
P 3-95
3-90 Step Size
Range: Function:
0.10 %
*
[0.01 -
200.00 %] Enter the increment size required for
INCREASE/DECREASE, as a percentage of
the synchronous motor speed, n
s
. If
INCREASE/ DECREASE is activated the
resulting reference will be increased /
decreased by the amount set in this
parameter.
3-91 Ramp Time
Range: Function:
1.00
s
*
[0.00 -
3600.00 s] Enter the ramp time, i.e. the time for
adjustment of the reference from 0% to 100%
of the specified digital potentiometer function
(Increase, Decrease or Clear).
If Increase/ Decrease is activated for longer
than the ramp delay period specified in
3-95 Ramp Delay the actual reference will be
ramped up / down according to this ramp
time. The ramp time is defined as the time
used to adjust the reference by the step size
specified in
3-90 Step Size .
3-92 Power Restore
Option: Function:
[0]
*
Off Resets the Digital Potentiometer reference to 0% after
power up.
[1] On Restores the most recent Digital Potentiometer
reference at power up.
3-93 Maximum Limit
Range: Function:
100 %
*
[-200 - 200
%] Set the maximum permissible value for the
resultant reference. This is advisable if the
Digital Potentiometer is used for fine
tuning of the resulting reference.
3-94 Minimum Limit
Range: Function:
-100 %
*
[-200 - 200
%] Set the minimum permissible value for the
resultant reference. This is advisable if the
Digital Potentiometer is used for fine
tuning of the resulting reference.
3-95 Ramp Delay
Range: Function:
Application
dependent
*
[Application
dependant] Enter the delay required from
activation of the digital potenti-
ometer function until the
frequency converter starts to
ramp the reference. With a delay
of 0 ms, the reference starts to
ramp as soon as INCREASE/
DECREASE is activated. See also
3-91 Ramp Time .
Parameter Descriptions FC 300 Programming Guide
MG.33.MB.02 - VLT
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