Advanced program group (continued) – Rockwell Automation 25B PowerFlex 520-Series Adjustable Frequency AC Drive User Manual User Manual
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Rockwell Automation Publication 520-UM001G-EN-E - September 2014
Chapter 3
Programming and Parameters
Advanced Program Group (continued)
A535 [Motor Fdbk Type]
Stop drive before changing this parameter.
PowerFlex 525 only.
Selects the encoder type.
Allowable Control Modes
Hardware Inputs
Options
0 “None” (Default)
For all motor types
–
1 “Pulse Train”
All except Vector
[DigIn TermBlk 07]
2 “Single Chan”
All except Vector
Optional incremental encoder card
(catalog number 25-ENC-1)
3 “Single Check”
All except Vector
4 “Quadrature”
For all motor types
5 “Quad Check”
For all motor types
PF 525
ATTENTION: The loss of analog input, encoder or other feedback may cause unintended speed or motion. Take appropriate precautions to guard against
possible unintended speed or motion.
A536 [Encoder PPR]
PowerFlex 525 only.
Specifies the encoder Pulses Per Revolution (PPR) when an encoder is used.
Values
Default:
1024 PPR
Min/Max:
1/20000 PPR
Display:
1 PPR
PF 525
Motor Control Mode
Recommended Minimum Encoder PPR
Sensorless Vector Control (SVC)
42 x (number of poles/2) [Speed range 100:1] : 84 PPR (4 pole motor)
Velocity Vector Control (VVC)
500 x (number of poles/2) [Speed range 1000:1] : 1000 PPR (4 pole motor)
The maximum encoder pulse is 250 kHz.
A537 [Pulse In Scale]
Related Parameter(s):
,
A535
Sets the scale factor/gain for the Pulse Input when
[DigIn TermBlk xx] is set to 52 “Pulse Train”, or
A535
[Motor Fdbk Type] is set to 1 “Pulse Train”.
Input frequency (Hz) / Pulse in Scale = Output frequency (Hz)
Values
Default:
64
Min/Max:
0/20000
Display:
1
A538 [Ki Speed Loop]
PowerFlex 525 only.
Sets the I-gain used in the PI calculation of the speed loop when feedback is used.
Values
Default:
2.0
Min/Max:
0.0/400.0
Display:
0.1
PF 525
A539 [Kp Speed Loop]
PowerFlex 525 only.
Sets the P-gain used in the PI calculation of the speed loop when feedback is used.
Values
Default:
5.0
Min/Max:
0.0/200.0
Display:
0.1
PF 525