Control Techniques UD70, User Manual

Page: 108 / 154

UD70
Issue code: 70nu2
8-10 Features
_
Q11% Ratio for digital lock
Units Ratio * 10
8
Range 1 to 800000000
Default 100000000
Reset H = S/V S = N/A P = N/A
_ Q11% specifies the ratio applied to the digital lock function, multiplied by
10
8
. This gives a maximum ratio of 8.00000000 (8 decimal places). Values
in _ Q11% are clamped to the maximum and minimum range.
_
Q12% Maximum rate of acceleration
Units Encoder lines per second
2
Range 1 to 2
31
Default 20480
Reset H = S/V S = N/A P = N/A
_
Q12% defines the maximum rate of change of speed (acceleration) used
within the speed and position profile generators. This applies to
acceleration in both the forwards and reverse directions.
If S-ramps ( _ Q32%.8 = 1) are selected, _ Q12% is not used.
_
Q13% Maximum rate of deceleration/S-ramp
Units Encoder lines per second
2
Range 1 to 2
31
Default
_
Q12%
Reset H = S/V S = N/A P = N/A
_ Q13% defines the maximum rate of change of speed (deceleration) used
within the speed and position profile generators. This applies to
deceleration in both the forwards and reverse directions.
If
_
Q13% is set to 0, the value used for the acceleration ramp (
_
Q12%) will
be written to _ Q13%.
If S-ramps (
_
Q32%.8 = 1) are selected,
_
Q13% defines the ramp rate. This is
set in the same way as for a linear ramp. The S-ramp will take the same
period of time as the equivalent linear ramp, resulting in a higher (
√
2 * linear
acceleration) peak acceleration.