Motor cntl sel – Rockwell Automation 20B PowerFlex 700 AC Drives Vector Control (v4.001 and up) User Manual
Page 24
24
Rockwell Automation Publication 20B-UM002G-EN-P - July 2014
Chapter 1
Programming and Parameters
M
O
TO
R C
O
N
TROL
To
rq A
ttribut
es
053 [Motor Cntl Sel]
Sets the method of motor control used in the
drive.
When “Adj Voltage” is selected, voltage control is
independent from frequency control. The voltage
and frequency components have independent
references and accel/decel rates. Typical
applications include non-motor loads or power
supplies.
Important: “FVC Vector” mode requires
autotuning of the motor. Being coupled to the
load will determine inertia (preferably lightly-
loaded). Total Inertia (parameter 450) will have
to be estimated if uncoupled for tuning of the
speed loop or separately adjust Ki and Kp
(parameters 445 & 446).
Default:
Options:
0
0
1
2
3
4
5
“Sensrls Vect”
“Sensrls Vect”
“SV Economize”
“Custom V/Hz”
“Fan/Pmp V/Hz”
“FVC Vector”
“Adj Voltage”
054 [Maximum Voltage]
Sets the highest voltage the drive will output.
Based on [Voltage Class], parameter 202.
Default:
Min/Max:
Units:
Drive Rated Volts
Rated Volts x 0.25/Rated Volts
0.1 VAC
055 [Maximum Freq]
Sets the highest frequency the drive will output.
Based on [Voltage Class], parameter 202. Also
refer to [Overspeed Limit], parameter 083.
Default:
Min/Max:
Units:
110.0 or 130.0 Hz
5.0/420.0 Hz
0.1 Hz
056 [Compensation]
Enables/disables correction options.
Option Descriptions
Reflect Wave
Disables reflected wave overvoltage protection for long cable lengths.
(typically enabled).
Enable Jerk
In non-FVC Vector modes, disabling jerk removes a short S-curve at the start of
the accel/decel ramp.
Ixo AutoCalc
Not functional – reserved for future enhancements.
Xsistor Diag
“0” disables power transistor power diagnostic tests which run at each start
command. “1” enables transistor diagnostic tests.
Rs Adapt
FVC w/Encoder Only - Disabling can improve torque regulation at lower speeds
(typically not needed).
Mtr Lead Rev
Reverses the phase rotation of the applied voltage, effectively reversing the
motor leads. Note: This bit is reset to “0” when parameters are reset to
factory defaults.
PWM Freq Lock
Keeps the PWM frequency from decreasing to 2 kHz at low operating
frequencies in FVC Vector mode without encoder.
DigIn DatLog
Enable [DigIn DataLogic], parameter 411.
NoSyncPWM
Disables synchronous PWM.
EncFiltStop
In FVC Vector mode only, sets the encoder filter based on parameter 416 -
[Fdbk Filter Sel] to detect when the drive is at zero speed during the stop
sequence.
Fil
e
Gr
oup
No
.
Parameter Name & Description
See
page 16
for symbol descriptions
Values
Rela
ted
1
0
1
1
1
0
x
0
0
x
0
0
x
x
x
x
10
0
1
2
3
4
5
6
7
8
9
11
12
13
14
15
1 = Enabled
0 = Disabled
x = Reserved
Bit #
Factory Default Bit Values
(1)
For current limit (except FVC Vector mode).
(2)
Firmware 6.002 and later.
(3)
Firmware 9.001 and later.
Reflec
t W
av
e
Enable Jerk
(1)
Ixo A
ut
oC
alc
Xsist
or D
iag
Rs A
dapt
Mtr L
ead Rev
PWM F
reqL
ock
TPEnc
dless
EncF
iltSt
op
(3)
Digin Da
tL
og
(2)
NoS
yncPWM
(2)