GE AF-650 GP Programming Manual page 43

Parameter Descriptions
F-53 Maximum Reference
Enter the maximum reference. The maximum reference is the
highest value obtainable by summing all references.
The maximum reference unit matches:
•
The configuration selected in parameter H-40 Configu-
3 3
ration Mode: For [1] Speed closed loop, RPM; for [2]
Torque, Nm.
•
The unit selected in parameter F-50 Reference Range.
Range:
1500.000 Reference-
FeedbackUnit
*
F-54 Reference Function
Option:
[0] Sum
[1] External/
*
Preset
3.3.8 F-6# References
Parameters to configure drive to add or subtract a fixed
value to an input reference.
F-62 Catch up/slow Down Value
Range:
0 % [0 -
*
100 %]
F-64 Preset Relative Reference
Range:
0 % [-100
-
*
100 %]
42
[par. F-52 -
999999.999
ReferenceFeed-
backUnit]
Function:
Sums both external and preset reference
sources.
Use either the preset or the external
reference source.
Shift between external and preset via a
command or a digital input.
Function:
Enter a percentage (relative) value to be either
added to or deducted from the actual reference
for catch up or slow down. If catch up is selected
via 1 of the digital inputs (parameter E-01 Terminal
18 Digital Input to parameter E-06 Terminal 33
Digital Input), the percentage (relative) value is
added to the total reference. If slow down is
selected via 1 of the digital inputs
(parameter E-01 Terminal 18 Digital Input to
parameter E-06 Terminal 33 Digital Input), the
percentage (relative) value is deducted from the
total reference. Obtain extended functionality with
the DigiPot function. See parameter group F-9*
Digital Potentiometer.
Function:
The actual reference, X, is increased or decreased
with the percentage Y, set in parameter F-64 Preset
Relative Reference. This results in the actual
reference Z. Actual reference (X) is the sum of the
inputs selected in:
F-64 Preset Relative Reference
Range:
Function:
Illustration 3.12 Preset Relative Reference
Illustration 3.13 Actual Reference
F-68 Relative Scaling Reference Resource
Option:
02/2016 All rights reserved.
Function:
•
Parameter F-01 Frequency Setting 1.
•
Parameter C-30 Frequency Command 2.
•
Parameter C-34 Frequency Command 3.
•
Parameter O-02 Control Word Source.
Function:
NOTICE
This parameter cannot be
adjusted while the motor is
running.
Select a variable value to be added to
the fixed value (defined in
parameter F-64 Preset Relative
Reference). The sum of the fixed and
variable values (labeled Y in
Illustration 3.14) is multiply by the
actual reference (labeled X in
Illustration 3.14). This product is then
added to the actual reference (X+X*Y/
100) to give the resulting actual
reference.
Illustration 3.14 Resulting Actual
Reference
DET-618D