30 Rockwell Automation Publication 20C-PM001F-EN-P - March 2012
Chapter 2 Programming and Parameters
Dynamic Control File
File
Group
No.
Parameter Name & Description Values
Related
DYNAMIC CONTROL
Ramp Rates
140
141
[Accel Time 1]
[Accel Time 2]
Sets rate of accel for all speed increases.
Default:
Min/Max:
Units:
10.0 Secs
10.0 Secs
0.1/3276.7 Secs
0.1 Secs
142
143
146
361
thru
366
142
143
[Decel Time 1]
[Decel Time 2]
Sets rate of decel for all speed decreases.
Default:
Min/Max:
Units:
10.0 Secs
10.0 Secs
0.1/3276.7 Secs
0.1 Secs
140
141
146
361
thru
366
146 [S Curve %]
Sets the percentage of accel or decel time that is
applied to the ramp as S Curve. Time is added, 1/2
at the beginning and 1/2 at the end of the ramp.
Default:
Min/Max:
Units:
0%
0/100%
1%
140
thru
143
Load Limits
147 [Current Lmt Sel]
Selects the source for the adjustment of current
limit (i.e. parameter, analog input, etc.).
Default:
Options:
0
0
1
2
“Cur Lim Val”
“Cur Lim Val”
“Analog In 1”
“Analog In 2”
146
149
148 [Current Lmt Val]
Defines the current limit value when [Current Lmt
Sel] = “Cur Lim Val.”
Default:
Min/Max:
Units:
Based on Drive Rating
Based on Drive Rating
0.1 Amps
147
149
149 [Current Lmt Gain]
Sets the responsiveness of the current limit.
Default:
Min/Max:
Units:
10000
0/32767
1
147
148
150 [Drive OL Mode]
Selects drive response to increasing drive
temperature.
Default:
Options:
3
0
1
2
3
“Both-PWM 1st”
“Reserved”
“Reduce Clim”
“Reserved”
“Both-PWM 1st”
151 [PWM Frequency]
Sets the carrier frequency for the PWM output.
Drive derating may occur at higher carrier
frequencies.
Default:
Min/Max:
Units:
1.5 kHz or 2 kHz based on Drive
Rating
1/Based on Drive Rating
1 kHz
152 [Droop RPM @ FLA]
Selects amount of droop that the speed reference
is reduced when at full load torque. Zero disables
the droop function.
Important: Selecting “Slip Comp” with
parameter 080 in conjunction with parameter
152, may produce undesirable results.
Default:
Min/Max:
Units:
0.0 RPM
0.0/200.0 RPM
0.1 RPM
Stop/Brake Modes
145 [DB While Stopped]
Enables/disables dynamic brake operation when
drive is stopped. DB may operate if input voltage
becomes too high.
• Disabled = DB will not
operate when the drive
is stopped.
• Enabled = DB may operate whenever drive is
energized.
Notes: This parameter is used for frame 9 drives
only. Added for firmware revision 3.001.
Default:
Options:
0
0
1
“Disabled”
“Disabled”
“Enabled”
Max Speed
Accel Time
Accel Rate
=
Max Speed
Decel Time
Decel Rate
=
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