GE AF-650 GP Programming Manual page 44

Parameter Descriptions
F-68 Relative Scaling Reference Resource
Option: Function:
[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 Potenti-
ometer
[21] Analog input
X30/11
[22] Analog input
X30/12
[26] Analog Input
X49/1
[27] Analog Input
X49/3
[28] Analog Input
X49/5
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 - Enter the increment size required for
200 %] increase/decrease as a percentage of the
*
synchronous motor speed, n
decrease is activated, the resulting reference
is increased or decreased by the value set in
this parameter.
F-91 Accel/Decel Time
Range: Function:
1 [0 - Enter the ramp time, that is the time for
s 3600 s] 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
parameter F-95 Accel/Decel Ramp Delay, the actual
reference is 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
parameter F-90 Step Size.
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.
DET-618D
AF-650 GP™ Programming Guide
F-93 Maximum Limit
Range:
100 %
*
F-94 Minimum Limit
Range:
-100 %
*
F-95 Accel/Decel Ramp Delay
Range:
0 [0 - 0] Enter the delay required from activation of the
*
. If increase/
s
02/2016 All rights reserved.
Function:
[-200 - Set the maximum permissible value for the
200 %] resulting reference. This is recommended if
the digital pot-meter is used for fine-tuning
of the resulting reference.
Function:
[-200 - Set the minimum permissible value for the
200 %] resulting reference. This is recommended if
the digital pot-meter is used for fine-
tuning of the resulting reference.
Function:
digital pot-meter function until the frequency
converter starts to ramp the reference. With a delay
of 0 ms, the reference starts to ramp when
increase/decrease is activated. See also
parameter F-91 Accel/Decel Time.
3 3
43