Rockwell Automation 8720MC Drives Integration Manual - Manual (Page 170)

Publication 8720MC-IN002A-EN-P — December 2002
C-58 Programming Parameters
Name: Stopping_Torque Data Type: Decimal R/W
Parameter No.
571
File:
Control
Group:
Torque Description: Parameter 571 specifies the maximum amount of torque available to stop the motor when the drive
enable signal is removed from the drive interface. This parameter is expressed as a percentage of rated motor
continuous torque. Reducing this value will reduce the amount of stopping torque and therefore limit the current
produced by the motor when the drive is disabled while it is running.
Default:
1000.0 Length
2 bytes SCANport Min/Max
Min.
≥ 0.0
Max. ≤ +1000.0
SCANport Scaling Resolution
1=.1% Units
%
Default:
1000.0% Length
2 bytes SERCOS/DPI Min/Max
Min.
≥ -2 15
Max. ≤ +2 15
- 1
SERCOS/DPI Scaling Resolution
Scaling type: parameter 86
Scaling factor: parameter 93
Scaling exponent: parameter 94 Units
parameter
86
Name: Stop_Time_Limit Data Type: Decimal R/W
Parameter No.
572
File:
Control
Group:
Torque Description: Parameter 572 specifies the maximum amount of time that the module will remain enabled while
stopping the motor. This is useful for applications where the deceleration rate is very slow.
Default:
10 Length
2 bytes Minimum/Maximum
Min.
≥ 0
Max.
≤ +1000
Scaling Resolution
1 Units
sec
Name: Torq_Scale_Gain Data Type: Unsigned Decimal R/W
Parameter No.
573
File:
Control
Group:
Torque Description: This parameter is the value of the torque scaling gain. This gain compensates the servo loop for the
system inertia.
Default:
0.0 Length
2 bytes SCANport Min/Max
Min.
≥ 0
Max.
≤ +32767
SCANport Scaling Resolution
10
-5
Units
%/rev(s)
Default:
0.0 Length
4 bytes SERCOS/DPI
Minimum/Maximum
Min.
≥ 0
Max.
≤ +2 31
- 1
SERCOS/DPI Scaling Resolution
10
-5
Units
%/rev(s)