130BA069.10
Time
RPM
P 4-13 RPM
high limit
Reference
P 1-25
Motor speed
low limit
P 4-11 RPM
P 3-81
Qramp
Qstop
Illustration 4.21 Quick Stop Ramp Time
3-82 Starting Ramp Up Time
Range:
Function:
Size
related
*
[0.01 - 3600
s]
The ramp-up time is the
acceleration time from 0 rpm to the
nominal motor speed set in
parameter 1-25 Motor Nominal Speed
when high starting torque is active.
4.4.8 3-9* Digital Pot.Meter
The digital potentiometer enables increase or decrease of
the actual reference by adjusting the set-up of the digital
inputs using the functions increase, decrease, or clear. To
activate the function, set at least 1 digital input to increase
or decrease.
Speed
Time (s)
Inc
130BA158.11
P 3-95
Illustration 4.22 Increase Actual Reference
Speed
Time (s)
Dec
Inc
130BA159.11
P 3-95
Illustration 4.23 Increase/Decrease Actual Reference
3-90 Step Size
Range:
Function:
0.10 %
*
[0.01 -
200 %]
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 is increased or decreased
by the value set in this parameter.
3-91 Ramp Time
Range:
Function:
1 s
*
[0 - 3600 s]
Enter the ramp time, that is the
time for adjustment of the
reference 0–100% of the specified
digital potentiometer function
(increase, decrease, or clear).
If increase/decrease is activated for
longer than the ramp delay period
specified in
, the actual reference is
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
.
3-92 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 allowed value for
the resulting reference. This is
recommended if the digital potenti-
ometer is used for fine-tuning of
the resulting reference.
3-94 Minimum Limit
Range:
Function:
-100 %
*
[-200 -
200 %]
Set the minimum allowed value for
the resulting reference. This is
recommended if the digital potenti-
ometer is used for fine-tuning of
the resulting reference.
Parameter Descriptions
VLT® AutomationDrive FC 361
60
Danfoss A/S © 03/2019 All rights reserved.
MG06J202
4
4
Summary of Contents for VLT AutomationDrive FC 361
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