Rockwell Automation 8720MC Drives Integration Manual - Manual (Page 137)

Publication 8720MC-IN002A-EN-P — December 2002
Programming Parameters C-25
Name: Torq_Scale_Type Data Display: Bit Pattern R/W
Parameter No.
86
File:
Control
Group:
Torque Description: Torque/force data scaling type. In the SERCOS configuration a variety of scaling methods can be
selected by means of this scaling type parameter. In the analog configuration percent scaling of motor torque is
the only available choice.
Enumerated Bit Pattern:
Structure of torque/force data scaling type:
Bits 2–0: Scaling method
000 – percentage scaling
001 – linear scaling (force)
010 – rotational scaling (torque)
Bit 3:
0 – preferred scaling
1 – parameter scaling
Bit 4: Units for force or Bit 4: Units for torque
0 – newton (N) 0 – newton metre (Nm)
1 – pound force (lbf) 1 – inch pound force (in lbf)
Bit 5: (reserved)
Bit 6: Data reference
0 – at the motor shaft
1 – at the load
(all other bits are reserved)
This parameter is available with the 8720MC SERCOS interface.
Default:
x000 Length
2 bytes Minimum/Maximum
N/A Scaling Resolution
N/A Units
N/A
Name: ±Vel_Limit Data Display: Signed Decimal R/W
Parameter No.
91
File:
Control
Group:
Velocity Description: Sets the velocity limit symmetrically in both directions. When in velocity mode, if the command
velocity exceeds this value, bit 5 in C3D (parameter 13) is set.
Default:
+32,767 Length
2 bytes SCANport Min/Max
Min.
≥ 0
Max.
≤ +32,767
SCANport Scaling Resolution
1 = 1RPM Units
RPM
Default:
+2
31
- 1
Length
4 bytes SERCOS/DPI Min/Max
Min.
≥ 0
Max.
≤ +2 31
- 1
SERCOS/DPI Scaling Resolution
Scaling type: parameter 44
Scaling factor: parameter 45
Scaling exponent: parameter 46 Units
parameter
44