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 nominal speed set in par. 1-25. If IN-
CREASE/ 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
*
[0.000 - 3600.00 s] Enter the ramp time, i.e. the time for adjustment of the refer-
ence 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 par. 3-95 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 speci-
fied in par. 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:
1.000 s
*
[0.000 - 3600.00 s] 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 par. 3-91
Ramp Time
.
FC 300 Programming Guide 2. How to Programme
MG.33.M2.02 - VLT
®
is a registered Danfoss trademark
85
2
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