GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 329)

DV-300 Adjustable Speed Drives
——— FUNCTION DESCRIPTION ———
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Setting of PAD 0 as a line speed input:
OPTION Menu
————> Torque winder
————> Diam calculation
————> Line speed source = 8695
Line speed gain Calibration value of the line speed.
Its programming depends on the sampling parameter of the line speed; it is used to get
“Line speed” = 100% of its maximum value.
The calculation of Line speed gain must be carried out with the formula:
[32768 x 16384 / (maximum value of the sampling parameter x 8)] -1
When this analog input is set on a PAD parameter, its maximum value is + / - 2048,
therefore to have Line speed = 100%:
Line speed gain = [32768 x 16384 / (2048 x 8) – 1] = 32767
(A fine tuning can be obtained by carrying out the self tuning procedure of the analog
input).
Ref spd source Sampling parameter number relating to the line speed reference. In order to get the
real number to be set it is necessary to add +2000H (8192 decimal) to the parameter
number.
Setting of PAD 0 as a line speed input:
OPTION Menu
————> Torque winder
————> Diam calculation
————> Ref speed source = 8695
Ref speed gain Gauging value of the line speed reference.
The relative setting depends on the sampling parameter of the line speed reference and
is used to obtain “Line speed” = 100% at its peak.
The calculation of Ref speed gain must be carried out with the formula:
[32768 x 16384 / (maximum value of the sampling parameter x 8)] -1
When this analog input is set on a PAD parameter, its maximum value is + / - 2048,
therefore to have Ref line spd = 100%:
Ref speed gain = [32768 x 16384 / (2048 x 8) – 1] = 32767
(A fine tuning can be obtained by carrying out the self tuning procedure of the analog
input).
Line speed Monitor of the line speed in [%]. After programming line speed source and line speed
gain it is possible to control the tuning by checking that with a line speed at its maximum
value the parameter line speed =100%.
Ref line speed Line reference Monitor.