Rockwell Automation Publication 520-UM001K-EN-E - August 2021 131
Chapter 3 Programming and Parameters
Advanced Program Group (continued)
A535 [Motor Fdbk Type] Related Parameter(s):P039, A537
Stop drive before changing this parameter.
Selects the encoder type.
(1)
Allowable Control Modes (See P039 [Torque Perf Mode]) Hardware Inputs
Options
0 “None” (Default) V/Hz, SVC, Economize, Vector, PM Control –
1“Pulse Train”
V/Hz, SVC, Economize, PM Control
[DigIn TermBlk 05] for PowerFlex 523
[DigIn TermBlk 07] for PowerFlex 525
2“Single Chan”
(2)
V/Hz, SVC, Economize, PM Control
Optional incremental encoder card
(catalog number 25-ENC-1)
3“Single Check”
(2)
V/Hz, SVC, Economize, PM Control
4“Quadrature”
(2)
V/Hz, SVC, Economize, Vector, PM Control
5“Quad Check”
(2)
V/Hz, SVC, Economize, Vector, PM Control
(1) Parameter is also available in PowerFlex 523 FRN 3.xxx and later.
(2) Setting is specific to PowerFlex 525 drives only.
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.
To achieve speed range/accuracy for SVC and VVC closed loop control, a minimum of 1024 PPR encoder is recommended. The maximum encoder pulse is 250 kHz.
For more information, see Determine Encoder Pulse Per Revolution (PPR) Specification Based on Speed Resolution on page 219.
Values
Default: 1024 PPR
Min/Max: 1/20000 PPR
Display: 1 PPR
A537 [Pulse In Scale] Related Parameter(s): t065, t067, A535
Sets the scale factor/gain for the Pulse Input when t065 [DigIn TermBlk 05] or t067 [DigIn TermBlk 07] 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]
Sets the I-gain used in the PI calculation of the speed loop when feedback is used. Applicable to V/Hz and SVC modes in closed loop control only.
(1)
Values
Default: 2.0
Min/Max: 0.0/400.0
Display: 0.1
(1) Parameter is also available in PowerFlex 523 FRN 3.xxx and later.
A539 [Kp Speed Loop]
Sets the P-gain used in the PI calculation of the speed loop when feedback is used. Applicable to V/Hz and SVC modes in closed loop control only.
(1)
Values
Default: 0.5
Min/Max: 0.0/200.0
Display: 0.1
(1) Parameter is also available in PowerFlex 523 FRN 3.xxx and later.
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