Rockwell Automation Liqui-Flo AC GP Vector Drive Version 6.4 - Manual (Page 160)

4-78 LiquiFlo AC Drive, Software Reference Version 6.4
*To determine the upper limit of U.017, the drive compares the results of two formulas
and uses the lower value:
For FVC operation (U.001 ≠ SE):
4 x sync speed or 240 x 120 (drive uses lower value)
U.002
For SVC operation (U.001 =
SE):
2 x sync speed or 240 x 120 (drive uses lower value)
U.002
where sync speed = 120 x U.003
U.002
Note that the drive limits the output frequency to the motor to 240 Hz.
Note the following about U.017:
• Increasing this number above Motor Nameplate RPM (U.005) will increase the field
weakening range.
• The range of the tunable parameter P.004 (Maximum Speed) is limited by the value
in U.017.
• For applications not requiring constant horsepower operation, U.017 should be set
equal to U.005 (Motor Nameplate RPM)
.
U.017 Motor Top Speed
This parameter
selects the top speed
that the motor can
reach. Parameter Range: U.005 to 7200 RPM*
Default Setting: Power Module-dependent, see Appendix C
Parameter Type: Configurable
Refer also to parameters: P.004 Maximum Speed
P.005 Current Limit
U.002 Motor Poles
U.005 Motor Nameplate RPM
!
ATTENTION: The setting of parameters U.001 (Encoder PPR), U.002
(Motor Poles), U.003 (Motor Nameplate Base Frequency), U.005 (Motor
Nameplate RPM), and U.017 (Motor Top Speed) determines the motor
maximum speed. These parameters must be set by a qualified person
who understands the significance of setting them accurately. Failure to
observe this precaution could result in bodily injury.
U.018 AC Line Volts
The phase-to-phase
line voltage provided
to the drive input
power terminals.
The value entered
should be within 10%
of actual line voltage.
Parameter Range: 300 to 565 VAC
Default Setting: 460
Parameter Type: Configurable
Refer also to parameters: N/A