Rockwell Automation 8720MC Drives Integration Manual - Manual (Page 174)

Publication 8720MC-IN002A-EN-P — December 2002
C-62 Programming Parameters
Name: AnaOut_Ch1_Gain Data Type: Integer R/W
Parameter No.
682
File:
I/O Interface
Group:
Analog Outputs Description: Parameter 682 provides a means of scaling analog output 1. This parameter is used to assign a
scale factor to Analog Output 1 which is the analog output tied to the 8720MC physical address of: connector P4,
row 1, terminals 1 and row 2 terminal 6. This allows the user to apply a scale factor to an external analog output
which is linked to a variable within the 8720MC Drive. The value of the source variable linked by parameter 681
is multiplied by the scale factor stored in parameter 682 in order to produce the value delivered to the digital to
analog converter. For example, with a scale factor of 1, a variable with a value of 100% will produce a D/A output
of 10V dc.
Default:
1.0 Length
2 bytes Minimum/Maximum
Min.
≥ -3.0000
Max. ≤ +3.0000
Scaling Resolution
10
-4
Units
Name:AnaOut_Ch2_Selec Data Type: Integer R/W
Parameter No.
683
File:
I/O Interface
Group:
Analog Outputs Description: The 8720MC Drive supports two +/-11 bit analog outputs. Parameter 683 provides a means of
linking the 8720MC physical address of: connector P4, row 2, terminal 5 and row 2, terminal 6 (analog output 2)
to a variable within the drive. This allows the user to link an external analog output to a linkable variable within
the 8720MC Drive. A +/- 10V dc analog voltage can be provided at analog output 2 which represents the value of
an 8720MC parameter such as % rated torque value or velocity feedback value or % power. Analog output 2,
parameter 683 contains the parameter number of the linked variable. If a +/- 10V dc analog output representing
torque is desired at analog output 2 then parameter number 84, torque feedback, must be entered into
parameter 683. The analog output value can be modified by multiplying the source variable by the scaling factor
stored in parameter 684.
D/A output = (Variable * scaling factor), D/A range +/- 2048 = +/- 10V dc)
Default:
84 (parameter 84) Length
2 byte Minimum/Maximum
0/10,000 Scaling Resolution
1 Units
param no.
Name: AnaOut_Ch2_Gain Data Type: Integer R/W
Parameter No.
684
File:
I/O Interface
Group:
Analog Outputs Description: Parameter 684 provides a means of scaling analog output 2. This parameter is used to assign a
scale factor to Analog Output 2 which is the analog output tied to the 8720MC physical address of: connector P4,
row 2, terminal 5 and row 2, terminal 6. This allows the user to apply a scale factor to an external analog output
which is linked to a variable within the 8720MC Drive. The value of the source variable linked by parameter 683
is multiplied by the scale factor stored in parameter 684 in order to produce the value delivered to the digital to
analog converter. For example, with a scale factor of 1, a variable with a value of 100% will produce a D/A output
of 10V dc.
Default:
1.0 Length
2 bytes Minimum/Maximum
Min.
≥ -3.000
Max. ≤ +3.000
Scaling Resolution
10
-4
Units