77 current rate lim, 78 fast flux level, 79 dc brake current – Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual
Page 226: 80 dc brake time, 81 motor speed, 82 command spd sts

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Parameters
77
Current Rate Lim
Enter the largest allowable rate of change for the current
reference signal. This number is scaled in units of maximum per
unit current every two milliseconds.
Parameter number
File:group
Control:Control Limits
Parameter type
linkable destination
Display
x.x%
Factory default
20.0%
Minimum value
calculated
Maximum value
200.0%
Conversion
4096 = 100.0%
78
Fast Flux Level
Enter the percent of rated motor current to be used to flux up the
motor fast. The larger the value, the faster the motor reaches
rated flux. To enable the fast flux up feature, you must set bit 8 in
Bus/Brake Option (parameter 13).
Parameter number
File:group
Application:Fast Flux Up
Parameter type
destination
Display
x.x%
Factory default
200.0%
Minimum value
100.0%
Maximum value
calculated
Conversion
4096 = 100.0%
Refer to the Enabling Fast Flux Up section of Chapter 12,
Troubleshooting, for more information.
79
Enter the percent of motor current to be used for DC braking the
motor. To enable DC braking, you need to set bit 9 in Bus/Brake
Opts (parameter 13).
1 DC Brake Current was added in Version 2.xx.
Parameter number
File:group
Application:DC Braking/Hold
Parameter type
linkable destination
Display
x.x%
Factory default
50.0%
Minimum value
0.0%
Maximum value
calculated
Conversion
4096 = 100.0% current
Refer to Chapter 9, Applications, for more information.
80
DC Brake Time
Enter the period of time that the DC braking current should be
applied after a stop has been commanded. To enable DC
braking, you need to set bit 9 in Bus/Brake Opts (parameter 13).
1 DC Brake Time was added in Version 2.xx.
Parameter number
File:group
Application:DC Braking/Hold
Parameter type
destination
Display
x.x seconds
Factory default
10.0 seconds
Minimum value
0.0 seconds
Maximum value
6553.5 seconds
Conversion
10=1.0 seconds
Refer to Chapter 9, Applications, for more information.
81
Motor Speed
Motor Speed contains a filtered version of speed feedback. The
value displayed in Motor Speed is passed through a low pass
filter having a 125 millisecond time constant.
Parameter number
File:group
Monitor:Motor Status
Parameter type
source
Display
±x.x rpm
Factory default
not applicable
Minimum value
-8 x base motor speed
Maximum value
+8 x base motor speed
Conversion
4096 = base motor speed
82
Command Spd Sts
Command Spd Sts is the high word portion of a 32-bit speed
reference quantity. It is the input term for the Speed PI Regulator.
Parameter number
File:group
Monitor:Drive/Inv Status
Parameter type
source
Display
±x.x rpm
Factory default
not applicable
Minimum value
-8 x base motor speed
Maximum value
+8 x base motor speed
Conversion
4096 = base motor speed