User Manual V 1-4.XX User guide

11-24 Parameters
60 PTrim Out Gain
The output of the process trim regulator is scaled by a gain factor.
This occurs just before the upper and lower limit. Use PTrim Out
Gain to specify the gain value to use. A negative gain value
inverts the process trim output.
Parameter number 60
File:group Application:Process Trim
Parameter type linkable destination
Display ±x.xxx
Factory default +1.000
Minimum value -8.000
Maximum value +8.000
Conversion 4096 = +1.000
Refer to the Trim Control Overview section in Appendix B,
Control Block Diagrams, for more information.
61 Max Rev Spd Trim
Use Max Rev Spd Trim to limit the minimum value of the speed
reference after the process trim output and the external speed
trim has been added.
Parameter number 61
File:group Application:Process Trim
Parameter type linkable destination
Display ±x.x rpm
Factory default - base motor speed rpm
Minimum value -6 x base motor speed rpm
Maximum value 0.0 rpm
Conversion -4096 = base motor speed
62 Max Fwd Spd Trim
Use Max Fwd Spd Trim to limit the maximum value of the speed
reference after the process trim.
Parameter number 62
File:group Application:Process Trim
Parameter type linkable destination
Display ±x.x rpm
Factory default + base motor speed rpm
Minimum value 0.0 rpm
Maximum value +6 x base motor speed rpm
Conversion 4096 = base motor speed
63 Scaled Spd Fdbk
Scaled Spd Fdbk is a scaled version of speed feedback. The
inverse of either Speed Scale 1 (parameter 30) or Speed Scale 7
(parameter 37) is used.
Parameter number 63
File:group Control:Speed Feedback
Parameter type source
Display ±x
Factory default not applicable
Minimum value -32767
Maximum value +32767
Conversion 1 = 1
64 Fdbk Device Type
Use Fdbk Device Type to choose the source for motor speed
feedback from the following options:
Value Description
1 Encoderless
Use this mode if you do not have an encoder.
2 Encoder
Use this mode if you do have an encoder.
3 Simulator
Use this mode to simulate a motor.
4 Encoderless W/Deadband
Use this mode if you do not have an encoder and
operation below 1Hz is not required.
Whenever possible, you should use the start up procedure to
change the feedback device type because the start up procedure
automatically re-adjusts the speed loop gains when you change
between encoder and encoderless operation.
Parameter number 64
File:group Control:Feedback Device
Parameter type destination
Display x
Factory default 1
Minimum value 1
Maximum value 3
Conversion 1 = 1
Refer to Chapter 9, Applications, for information about the
advantages and disadvantages of encoderless and encoder
modes.
1Hz
Deadband