Dynamic control file – Rockwell Automation 23P PowerFlex Digital DC Drive User Manual
Page 151
Rockwell Automation Publication 20P-UM001K-EN-P - July 2014
151
Programming and Parameters
Chapter 3
Dynamic Control File
Fil
e
Gr
oup
No
.
Parameter Name & Description
for symbol descriptions
Values
Da
ta
T
yp
e
Rela
ted
DYNAMIC
C
O
NTROL
Control C
onfi
g
15
[SLAT Err Stpt]
Configures the condition for transfer between Speed and Torque operation during
“SLAT Min” or “SLAT Max” mode. If the Speed Error is greater than the value of
[SLAT Err Stpt] for the amount of time specified in Par 16 [SLAT Dwell Time], then
the “forced speed” mode is turned off.
Max. value setting example where Par 45 = 1750: 1750/5 = 350 rpm.
Note: This parameter was added for firmware version 3.001.
Default:
Min/Max:
Units:
0.000
0.000 / Par 45/5 (see description)
rpm
Real
16,
241
16
[SLAT Dwell Time]
Amount of time that the speed error must be greater than the value of Par 15 [SLAT
Err Stpt] to return to “SLAT Min” or “SLAT Max” mode.
Note: This parameter was added for firmware version 3.001.
Default:
Min/Max:
Units:
0
0 / 5
s
16-bit
Int
15,
241
241
[Spd Trq Mode Sel]
Configures the drive for a Speed or Torque mode of operation.
• “Zero Trq Ref” = The drive operates as a torque regulator with the torque
reference (Par 14 [Selected TorqRef]) forced to zero.
• “Speed Reg” = The drive operates as a speed regulator with the reference = Par
236 [Spd Reg Out Pct] + inertia compensation.
• “Torque Reg” = The drive operates as a torque regulator with the reference
equal to the value of Par 39 [Torque Ref].
• “SLAT Min” = The drive operates in Speed Limited Adjustable Torque (SLAT) -
Minimum mode. The drive operates as a torque regulator when the value of Par
39 [Torque Ref] is algebraically smaller in value than the speed regulator’s
output. The drive may automatically enter speed regulation mode based on
conditions within the speed regulator and the magnitude of the speed
regulator’s output relative to the torque reference.
• “SLAT Max” = The drive operates in SLAT – Maximum mode. The drive operates
as a torque regulator when the value of Par 39 [Torque Ref] is algebraically
larger in value than the speed regulator’s output. The drive may automatically
enter speed regulation mode based on conditions within the speed regulator
and the magnitude of the speed regulator’s output relative to the torque
reference.
• “Sum” = The drive operates as a speed regulator. The reference is derived from
the sum of the speed regulator output (Par 236 [Spd Reg Out Pct]) and the
torque reference (Par 39 [Torque Ref]).
Notes: See Speed / Torque Mode Selection on page
in Appendix C for more
detailed information. This parameter was added and is only available with
firmware version 3.001 and higher.
Default:
Options:
1 =
0 =
1 =
2 =
3 =
4 =
5 =
“Speed Reg”
“Zero Trq Ref”
“Speed Reg”
“Torque Reg”
“SLAT Min”
“SLAT Max”
“Sum”
16-bit
Int
39,
236,
382
Ra
mp R
ates
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”
16-bit
Int
19
[S Curve Time]
S-shaped ramp time constant. The value of this parameter is added to the time of
the linear accel and decel ramps, regardless of speed changes. Approximately half
of the specified time is added at the beginning and half at the end of the accel and
decel ramps. When 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.
Note: See S-curve Configuration on page
for more information.
Default:
Min/Max:
Units:
1.00
0.10 / 15.00
s
Real
18,
665,
666,
667,
668
A
A