Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX - Manual (Page 224)

11-26 Parameters
68 Spd/Trq Mode Sel
Use Spd/Trq Mode Sel to select the source for the drive torque
reference. Spd/Trq Mode Sel operates as a selector switch. The
position of the selector determines the torque reference selection
as follows:
Parameter number 68
File:group Control:Speed/Torq Mode
Parameter type linkable destination
Display bits
Factory default 1
Minimum value 0
Maximum value 5
Conversion 1 = 1
For a more detailed description of these bits, refer to the Torque
Reference Overview section in Appendix B, Control Block
Diagrams.
Value Description
0 Zero Torque
Zero Torque
1 Speed Reg
Speed Regulate
2 Torque Reg
External Torque
Value Description
3 Min Trq/Spd
Selects the smallest value when
the torque reference and the
torque generated from the speed
are compared.
4 Max Trq/Spd
Selects the largest value when the
torque reference and the torque
generated from the speed are
compared.
Value Description
5 Sum Trq/Spd
Selects the sum of the torque
reference and
the torque generated from the
speed.
69 Torque Ref 1
Use Torque Ref 1 to supply an external motor torque reference to
the drive. To select the external torque reference, set Spd/Trq
Mode Sel (parameter 68) to a value of 2.
Parameter number 69
File:group Control:Torque Reference
Parameter type linkable destination
Display ±x.x%
Factory default +0.0%
Minimum value -800.0%
Maximum value +800.0%
Conversion 4096 = 100.0%
70 Slave Torque %
Use Slave Torque % to specify the gain value that is multiplied to
Torque Ref 1 (parameter 69).
Parameter number 70
File:group Control:Torque Reference
Parameter type linkable destination
Display ±x.xx%
Factory default +100.00%
Minimum value -200.00%
Maximum value +200.00%
Conversion 4096 = 1.00%
71 Min Flux Level
Use Min Flux Level to set the smallest level of flux used to
convert a torque to a current reference above base speed.
Setting Min Flux Level to a value less than 100%, such as 25%,
will increase the speed regulator gains to compensate for the
loss of gain/bandwidth that occurs above base speed due to field
weakening. Reducing Min Flux Level below 100% may result in
unstable operation above base speed when in encoderless
mode.
Parameter number 71
File:group none
Parameter type linkable destination
Display x.x%
Factory default 100.0%
Minimum value 12.5%
Maximum value 100.0%
Conversion 4096 = 100.0%