4-3
Operating the Drive
650G AC Drive
Set-up as an Open-loop drive (V/F Mode)
The drive will run the motor without any further adjustment. However, the parameters below are
pre-loaded with "typical" values that are dependent upon the Product Code for the drive. To
improve performance you can enter "actual" values to suit your system; particularly P6 and P7
whose values should be found on the motor nameplate. Now refer to "Tuning the Drive to Your
System", page 4-5.
Note:
For Product Code dependent defaults, refer to Chapter 6: "Programming Your
Application".
Display
Parameter
Default
Brief Description
CONTROL MODE
VOLTS / HZ
(0)
This parameter contains the main method
of motor control used by the drive, and
by default is set to VOLTS/HZ
MOTOR CURRENT
Default is
Product Code
dependent
Enter the motor nameplate full-load line
current
BASE FREQUENCY
Default is
Product Code
dependent
Enter the output frequency from the motor
nameplate
FIXED BOOST
Default is
Product Code
dependent
Enter a boost for starting torque to help
with high friction loads
Set-up using the Sensorless Vector Mode
By default, the drive is operating in V/F Mode. Use the keypad to change to Sensorless Vector
Mode:
Display
Parameter
Default
Brief Description
CONTROL MODE
Set to
SENSORLESS
VEC (1)
This parameter contains the main method
of motor control used by the drive, and
by default is set to VOLTS/HZ
To operate in Sensorless Vector Mode, the drive needs to know more about your system. You
MUST
carry out an Autotune (described over the page) but first, enter "actual" values from your
motor nameplate for the parameters listed below.
Note:
For Product Code dependent defaults, refer to Chapter 6: "Programming Your
Application".
Display
Parameter
Default
Brief Description
MAX SPEED
Default is
Product Code
dependent
Set the speed in Hz at which the 650G
will run when the maximum setpoint is
applied
MOTOR CURRENT
Default is
Product Code
dependent
Enter the motor nameplate full-load line
current
BASE FREQUENCY
Default is
Product Code
dependent
Enter the output frequency from the motor
nameplate
NAMEPLATE RPM
1445.0
Enter the motor nameplate full-load rated
speed. This is the motor speed in rpm at
base frequency minus full load slip
MOTOR POLES
4-pole
Enter the number of motor poles shown
on the motor nameplate
MOTOR VOLTAGE
Default is
Product Code
dependent
Enter the motor nameplate voltage at
base frequency
MAG CURRENT
Default is
Product Code
dependent
Enter the motor model no-load line
current only if performing a Stationary
Autotune (see over the page)
