4-4
Operating the Drive
650G AC Drive
Set-up using the Sensorless Vector Fluxing Mode
The drive must be tuned to the motor in use by matching the motor parameters in the drive to
those of the motor being controlled.
IMPORTANT:
You MUST use the Autotune feature.
Enter values for the following parameters.
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
MIN SPEED
0.0%
Minimum speed clamp
ACCEL TIME
10.0 s
The time taken for the 650G output
frequency to ramp up from zero to MAX
SPEED
DECEL TIME
10.0 s
The time taken for the 650G output
frequency to ramp down from MAX
SPEED to zero
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
JOG SETPOINT
10.0 %
Drive speed setpoint whilst jogging
RUN STOP MODE
0
Selects a type of "ramp to standstill", for
when RUN signal is removed
HEAVY/NORMAL
DUTY
0
Selects between Heavy or Normal mode
of operation
CONTROL MODE
SENSORLESS
VEC (1)
This parameter contains the main method
of motor control used by the drive, and
by default is set to VOLTS/HZ
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
AUTOTUNE MODE
0
Selects the Autotune operating mode.
AUTOTUNE
ENABLE
0
Enables the Autotune feature
The Autotune Feature
IMPORTANT:
You MUST carry out an Autotune if you intend to use the drive in Sensorless Vector
Fluxing Mode. If you are using it in Volts/Hz control an Autotune is not necessary.
The Autotune feature identifies motor characteristics to allow the drive to control the motor.
It loads the values into the parameters below.
Display
Description
Note
MAG CURRENT
Magnetising current. Not measured by
Stationary Autotune
STATOR RES
Per phase stator resistance
LEAKAGE INDUC
Per phase stator leakage inductance
MUTUAL INDUC
Per phase mutual inductance
ROTOR TIME
CONST
Rotor time constant. This is identified from
magnetising current and motor nameplate rpm
www.comoso.com
