Rockwell Automation 8720MC Drives Integration Manual User Manual

Page 143

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

Programming Parameters

C-31

Name: Mtr_Torq_Overld

Data Display: Signed Decimal

R/W

Parameter No.
114
File:
Linear List
Group:
Linear List

Description: When the load limit is exceeded for a period of time, the overload shut-down bit 0 of C1D (parameter
11) is set.

Default:
100.0

Length
2 bytes

SCANport Min/Max
Min. > 0
Max.

≤ 1,000

SCANport Scaling Resolution
1 = 0.1%

Units
%

Default:
100.0

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: Motor_Fdbk_Resol

Data Type: Integer

R/W

Parameter No.
116
File:
Motor/Drive/
Fdbk
Group:
Motor Feedback

Description: For rotary feedback the resolution parameter of feedback 1 (motor feedback) defines the number of
cycles per revolution of the motor. For a sinusoidal device this represents the number of periods per revolution.
For a TTL devices this represents the number of lines per motor revolution. For a linear feedback the grid constant
is entered. For the standard Stegmann motor feedback devices this will be self identified at 1024 counts.

Default:
From motor
encoder

Length
2 bytes

SCANport Min/Max
Min. > 0
Max.

≤ 32,000

SCANport Scaling Resolution
1 = 1 cycle/motor revolution

Units
fdbk cycles

Default:
From motor
encoder

Length
4 bytes

SERCOS/DPI Min/Max
Min. > 0

Max.

≤ 2

32

- 1

SERCOS/DPI Scaling Resolution
1 [cycles/motor revolution]

Units
fdbk cycles

Name: Gear_In_Revs_0

Data Display: Integer

R/W

Parameter No.
121
File:
Servo Loop
Group:
Group 0

Description: Input revolutions of load gear set as viewed from the motor. Input revolutions must be entered as an
integer value. This parameter applies to the SERCOS interface only.

Analog Default:
1

Length
2 bytes

SCANport Min/Max
Min.

≥ 0

Max.

≤ +65535

SCANport Scaling Resolution
1 revolution of the input shaft

Units
revs

Default:
1

Length
4 bytes

SERCOS/DPI Min/Max
Min.

≥ 0

Max.

≤ +2

32

- 1

SERCOS/DPI Scaling Resolution
1 [input revolution]

Units
revs

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