Allen-Bradley PowerFlex 750 Series Programming Manual

58 Rockwell Automation Publication 750-PM001N-EN-P - February 2017
Chapter 3 Drive Port 0 Parameters
MOTOR CONTROL
Autotune
77 Inertia Test Lmt
Inertia Test Limit
Maximum number of revolutions the motor rotates during the Inertia AutoTune test.
When the value is zero, the limit is not active.
Units:
Default:
Min/Max:
Revs
0.0
0.0 / 65535.0
RW Real
78 Encdrlss AngComp
Encoderless Angle Compensation
Represents electrical angle compensation dependent on motor cable and PWM
Frequency. Determined during autotuning when P35 [Motor Ctrl Mode] is set to one of
the FV modes without speed feedback.
Units:
Default:
Min/Max:
Rad
0.0000
–/+6.2831
RW Real
79 Encdrlss VltComp
Encoderless Voltage Compensation
Represents voltage compensation dependent on motor cable and PWM Frequency.
Determined during autotuning when P35 [Motor Ctrl Mode] is set to one of the FV
modes without speed feedback.
Units:
Default:
Min/Max:
V AC
Based on Drive Rating
0.00 / Based on Drive Rating and Voltage
Class
RW Real
80 PM Cfg
Permanent Magnet Motor Configuration
RW 16-bit
Integer
This parameter also includes two options for PM FV mode selected by P35 [Motor Ctrl Mode].
Bit 0 “AutoOfstTest” – Enables the PM Offset test to be executed before the drive runs normally after a power cycle or drive reset. Required when the feedback
device is not an absolute feedback device. Cannot be enabled if Bit 2 is enabled. Allow for up to 90° of shaft rotation. The value set in P83 [PM Ofst Tst Cur] may need
to be increased to complete the test. If shaft rotation is not possible, set Bits 0 and 1 to perform a static test at every start.
Bit 1 “Vqs Reg En” – Enables the Vqs regulator.
Bit 2 “StaticTestEn” – Enables the Static test to be executed before the drive starts. Cannot be enabled if Bit 0 is enabled.
Bit 3 “PMStabAnglEn” – Enables the Permanent Magnet Stability Angle regulator. Used for PM FV Encoderless when P35 [Motor Ctrl Mode] = 6 “PM FV” and P125
[Pri Vel Fdbk Sel] = Open Loop.
Bit 4 “IPM Vqs Disa” – Disables Vqs regulator when P35 [Motor Ctrl Mode] = 10 “IPM FV.”
Bit 5 “IPMTqTrmEn” – Enables Torque Trim when P35 [Motor Ctrl Mode] = 10 “IPM FV.”
Bit 6 “VCmdPhShftEn” – Enables the enhancement function on the voltage command calculation in all control modes.
Bit 7 “IdsCmdFFwdEn” – Enables the feed forward term calculation for the Vqs regulator in PM with feedback mode.
81 PM PriEnc Offset
Permanent Magnet Motor Primary Encoder Offset
The amount of offset between the primary feedback encoder counts, and the rotor flux
center position of the PM motor. A value of 1024 is equal to 360 electrical degrees. This
parameter is updated during the PM Offset test which runs at the first start after a power
cycle/ system reset (P80 [PM Cfg] Bit 0 = 1) and during autotune in PM FV mode.
Default:
Min/Max:
0
0 / 1023
RW 32-bit
Integer
File Group
No. Display Name
Full Name
Description
Values
Read-Write Data Type
Mode Bit 0Bit 1Bit 2Bit 3Bit 4Bit 5Bit 6Bit 7
PM with Absolute Feedback (Stegmann, SSI, Heidenhaim) X
PM with Incremental Encoder (Pulse, SIN/COS) X X
PM without Feedback X X X
IPM with Absolute Feedback (Stegmann, SSI, Heidenhaim) X
IPM with Incremental Encoder (Pulse, SIN/COS) X X
IPM without Feedback X X
X = 1
Options
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved IdsCmdFFwdEn
(1)
(1) 755 drives only.
VCmdPhShftEn IPMTqTrmEn IPM Vqs Disa PMStabAnglEn StaticTestEn Vqs Reg En AutoOfstTest
Default0000000010000000
Bit 1514131211109876543210
0 = Disable
1 = Enable

Allen-Bradley PowerFlex 750 Series Specifications

General

Brand	Allen-Bradley
Model	PowerFlex 750 Series
Category	Controller
Language	English