PowerFlex Digital DC Drive User Manual - Publication 20P-UM001C-EN-P - July 2008
Programming and Parameters 3-29
Dynamic Control File
File
Group
No.
Parameter Name & Description
See page 3-2 for symbol descriptions
Values
Related
DYNAMIC CONTROL
Ramp Rates
18 [Ramp Type Select]
Determines the type of ramp used.
• 0 “Linear” = Linear ramp
• 1 “S shaped” = S–shaped ramp
Default:
Options:
0 =
0 =
1 =
“Linear”
“Linear”
“S shaped”
19 [S Curve Time]
S-shaped curve time constant. The value of Par 19 [S Curve Time] is
added to the ramp time of linear ramps, regardless of speed changes.
If the value of [S Curve Time] is changed, Pars 665 and 667 [S Curve
Accel x] and 666 and 668 [S Curve Decel x] are set to the same value.
If any of parameters 665-668 are changed later, the last change is
valid.
Default:
Min/Max:
Units:
1.00
0.10 / 60.00
s
18,
665,
666,
667,
668
20 [Ramp Delay]
Defines a ramp delay time when the ramp is active. Works with par
[Digital Outx Sel] set to 6 “Ramp Pos” or 7 “Ramp Neg”.
Default:
Min/Max:
Units:
100
0 / 65535
ms
113,
346,
347
22 [MOP Accel Time]
The acceleration rate for the MOP reference in response to a digital
input. The MOP acceleration rate = Par 2 [Maximum Speed] / Par 22
[MOP Accel Time].
If “0” is entered in this parameter, the ramp output directly follows the
reference value.
Default:
Min/Max:
Units:
10
0 / 65535
s
2
24 [Accel Time 2]
Sets the rate of acceleration for Ramp 2.
Acceleration rate for Ramp 2 = Par 2 [Maximum Speed] / Par 24
[Accel Time 2].
Default:
Min/Max:
Units:
10
0 / 65535
s
2
30 [MOP Decel Time]
The deceleration rate for the MOP reference in response to a digital
input. The MOP deceleration rate = Par 2 [Maximum Speed] / Par 30
[MOP Decel Time].
Default:
Min/Max:
Units:
10
0 / 65535
s
2
1410 [Jog Ramp Time]
Sets the rate of acceleration and deceleration while the Jog function
is active. The Jog rate = Par 2 [Maximum Speed] / Par 1410 [Jog
Ramp Time].
Note: This parameter was added with firmware version 2.001.
Default:
Min/Max:
Units:
10
0 / 65535
s
2
S Curve Time
A
Par 113 [Ramp Out]
Par 346 [Torque Positive]
Par 347 [Torque Negative]
Par 20
[Ramp Delay]
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