Operation modes
The DriveSPC tool offers the following operation modes:
Off-line
When the off-line mode is used without a drive connection, the user can
• open a application program file (if exists).
• modify and save the application program.
• print the program pages.
When the off-line mode is used with a drive(s) connection, the user can
• connect the selected drive to DriveSPC.
• upload an application program from the connected drive (an empty template
which includes only the firmware blocks is available by default.)
• download the configured application program to the drive and start the program
execution. The downloaded program contains the function block program and the
parameter values set in DriveSPC.
• remove the program from the connected drive.
On-line
In the on-line mode, the user can
• modify firmware parameters (changes are stored directly to the drive memory)
• modify application program parameters (ie, parameters created in DriveSPC)
• monitor the actual values of all function blocks in real time.
Motor control features
Scalar motor control
It is possible to select scalar control as the motor control method instead of Direct
Torque Control (DTC). In scalar control mode, the drive is controlled with a frequency
reference. However, the performance of DTC is not achieved in scalar control.
It is recommended to activate the scalar motor control mode in the following situations:
• In multimotor drives: 1) if the load is not equally shared between the motors, 2) if
the motors are of different sizes, or 3) if the motors are going to be changed after
motor identification (motor ID run)
• If the nominal current of the motor is less than 1/6 of the nominal output current of the drive
• If the drive is used without a motor connected (for example, for test purposes)
• If the drive runs a medium-voltage motor through a step-up transformer.
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