Rockwell Automation 8720MC Drives Integration Manual - Manual (Page 177)

Publication 8720MC-IN002A-EN-P — December 2002
Programming Parameters C-65
Name: Manual_Vel_Scale Data Type: Signed Integer R/W
Parameter No.
696
File:
I/O Interface
Group:
Analog Inputs Description: Parameter 696 provides a means of scaling analog input 2. This parameter is used to assign a
scale factor to “AnaInput2_Value” which is the analog input tied to the 8720MC physical address of: connector
P1, row 2, terminals 16 and 17. This allows the user to apply a scale factor to an external analog input which is
linked to a variable within the 8720MC Drive. Analog Input 2 is only used in manual velocity mode. Parameter 696
contains the velocity scale factor in rpm/100%. For example, if the incoming analog voltage full scale range is +/-
9 volts and the desired max rpm range is +/- 3000 rpm, then the scale factor would be 3000 *10/9 or 3333 rpm/
100%. This parameter should not generate a speed requirement greater than the maximum speed of the motor,
parameter 113. Analog Input 2 supports only velocity scaling.
Default:
1000 Length
2 bytes Minimum/Maximum
Min.
≥ -30,000
Max.
≤ +30,000
Scaling Resolution
1 Units
rpm/100%
Name: Analog_Trq_Scale Data Type: Signed Decimal R/W
Parameter No.
698
File:
I/O Interface
Group:
Analog Inputs Description: This parameter is used to assign a scale factor for an external torque reference.
Default:
0.0 Length
2 bytes Minimum/Maximum
Min.
≥ 0
Max. ≤ +10,000
Scaling Resolution
1 = 0.1% / 10V Units
%/ Volts
Name: SCANp_AN1_Value Data Type: Integer R/W
Parameter No.
713
File:
Communication
Group:
SCANp_Ref/
fdback Description: Parameter 713 contains the value of the reference as provided by a SCANport connected PLC.
Parameter 713 is linked to the velocity reference command 36 or the torque reference command, parameter 80,
by the 8720MC drive software as determined by the velocity/torque mode parameter 32. The value of parameter
713, as provided by the PLC, should be scaled to motor rpm when in velocity mode and % rated torque when in
torque mode. See parameter 32 “Primary Operating Mode” for an explanation of the 8720MC operating modes.
Default:
0 Length
2 bytes Minimum/Maximum
Min.
≥ -32768
Max.
≤ +32767
Scaling Resolution
1 = 1 rpm or 1 = .1% rated torque Units
rpm or %
rated torq