Illustration 3.14, 9 f-9# digital potentiometer – GE Industrial Solutions AF-650 GP General Purpose Drive Programming Guide User Manual
Page 42
F-68 Relative Scaling Reference Resource
Option:
Function:
Illustration 3.14 Resultant Actual Reference
[0]
*
No function
[1]
Analog Input
53
[2]
Analog Input
54
[7]
Frequency
input 29
[8]
Frequency
input 33
[11]
Local bus
reference
[20]
Digital
Potentiometer
[21]
Analog input
X30-11
[22]
Analog input
X30-12
3.3.9 F-9# Digital Potentiometer
Parameters to configure drive digital pot-meter function.
F-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 will be increased/
decreased by the amount set in this
parameter.
F-91 Accel/Decel Time
Range:
Function:
1 s
*
[0 -
3600 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 F-95 Accel/
Decel Ramp Delay the actual reference will be
acceled/deceled according to this ramp time. The
ramp time is defined as the time used to adjust
the reference by the step size specified in
F-92 Power Restore
Option:
Function:
[0]
*
Off
Resets the Digital Pot-Meter reference to 0% after
power up.
[1]
On
Restores the most recent Digital Pot-Meter reference at
power up.
F-93 Maximum Limit
Range:
Function:
100 %
*
[-200 - 200
%]
Set the maximum permissible value for
the resultant reference. This is advisable if
the Digital Pot-Meter is used for fine
tuning of the resulting reference.
F-94 Minimum Limit
Range:
Function:
-100 %
*
[-200 - 200
%]
Set the minimum permissible value for
the resultant reference. This is advisable
if the Digital Pot-Meter is used for fine
tuning of the resulting reference.
F-95 Accel/Decel Ramp Delay
Range:
Function:
0
*
[0 - 0] Enter the delay required from activation of the
digital pot-meter 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
Parameter Descriptions
AF-650 GP Programming Guide
DET-618C
41
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