68 spd/trq mode sel, 69 torque ref 1, 70 slave torque – Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual
Page 224: 71 min flux level

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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
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
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
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
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%