Rockwell Automation 8720MC Drives Integration Manual User Manual

Page 138

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Publication 8720MC-IN002A-EN-P — December 2002

C-26

Programming Parameters

Name: ±Torque_Limit

Data Display: Signed Decimal

R/W

Parameter No.
92
File:
Control
Group:
Torque

Description: Sets the torque limit symmetrically in both directions. When the actual torque exceeds this value, bit
4 in C3D (parameter 13) is set.

Default:
0.0

Length
2 bytes

SCANport Min/Max
Min.

0.0

Max.

≤ +1000.0

SCANport Scaling Resolution
1=.1%

Units
%

Default:
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: Torq_Scal_Factor

Data Display: Integer

R/W

Parameter No.
93
File:
Control
Group:
Torque

Description: Torque/force data scaling factor. In the SERCOS configuration this parameter defines the scaling
factor for all torque/force data in a drive. This parameter is only used when the preferred scaling is not selected in
parameter 86. In the analog configuration the scale factor is always 1.
This parameter is available with the 8720MC SERCOS interface.

Default:
1

Length
2 bytes

Minimum/Maximum
Min.

≥ 1

Max.

≤ +2

16

- 1

Scaling Resolution
Structure of the torque/force data scaling factor:
Bits 15-0: factor

Units
scaler

Name: Torq_Scale_Expon

Data Display: Integer

R/W

Parameter No.
94
File:
Control
Group:
Torque

Description: Torque/force data scaling exponent. In the SERCOS configuration his parameter defines the scaling
exponent for all torque/force data in a drive. This parameter is only used when the preferred scaling is not
selected in parameter 86. In the analog configuration the scale exponent is always 10-1.
This parameter is available with the 8720MC SERCOS interface.

Default:
10-1

Length
2 bytes

Minimum/Maximum

Min.

≥ -2

15

Max.

≤ +2

15

- 1

Scaling Resolution
Structure of the torque/force data scaling exponent:
Bit 15: Sign of the exponent
0 – positive
1 – negative
Bits 14-0: Exponent

Units
scaler

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