User Manual V 1-4.XX User guide

11-22 Parameters
51 PTrim Select
Use PTrim Select to select the options for the process trim
regulator. If bits 0 and 1 are either both set or both clear, both the
speed and the torque references remain unaffected. If bits 3 and
4 are both set, bit 3 takes priority.
The bits are defined as follows:
Parameter number 51
File:group Application:Process Trim
Parameter type linkable destination
Display bits
Factory default 00000000
Minimum value 00000000
Maximum value 11111111
Conversion 1 = 1
Refer to the Trim Control Overview section in Appendix B,
Control Block Diagrams, for more information.
Bit Description
0 Speed Trim
Set to trim the speed reference.
1 Torque Trim
Set to trim the torque reference.
2 Speed Input
Select the speed inputs.
Bit Description
3 Set Output
Set the output option.
4 Preset Integ
Preset integrator option.
5 Trim Limiter
Force ON trim limit option.
Bit Description
6 Trim Enable
Enable process trim. OR’d with
Process Trim bit 11 in Logic Input
Sts (parameter 14).
7 Encoder Trim
52 PTrim Filter BW
Use PTrim Filter BW to set the bandwidth of a single pole filter
used with the error input for process trim. The input to the filter is
the difference between PTrim Reference (parameter 49) and
PTrim Feedback (parameter 50). The output of this filter is used
as the input to the process trim regulator.
Parameter number 52
File:group Application:Process Trim
Parameter type linkable destination
Display x.x radians/second
Factory default 0.0 radians/second
Minimum value 0.0 radians/second
Maximum value 240.0 radians/second
Conversion 10 = 1.0
Refer to the Trim Control Overview section in Appendix B,
Control Block Diagrams, for more information.
53 PTrim Preload
Use PTrim Preload to preset the output of the process trim
regulator when you select either bit 3 (Set the output option) or
bit 4 (Preset integrator option) in PTrim Select (parameter 51).
Parameter number 53
File:group Application:Process Trim
Parameter type linkable destination
Display ±x.x%
Factory default 0.0%
Minimum value -800.0%
Maximum value +800.0%
Conversion 4096 = 100.0%
Refer to the Trim Control Overview section in Appendix B,
Control Block Diagrams, for more information.
54 PTrim Ki
Use PTrim Ki to control the integral gain of the process trim
regulator. If Ki process trim is 1.0, the process trim PI regulator
output equals 1 pu in 1 second for 1 pu process trim error.
Parameter number 54
File:group Application:Process Trim
Parameter type linkable destination
Display x.xxx
Factory default 1.000
Minimum value 0.000
Maximum value 16.000
Conversion 4096 = 1.000
Refer to the Trim Control Overview section in Appendix B,
Control Block Diagrams, for more information.