Selecting The Control Mode - Hitachi SJ700D-3 SERIES Quick Reference Manual

S.5 Selecting the control mode
The SJ700D-3 inverter series provides several options for motor control to satisfy various application
requirements. Please choose a suitable control mode for your application by referring to the table below.
Initial setting of A044 is 00 (V/f control mode).
Check
In case you want to drive fun, pump or light load
application :
In case you want to set the characteristic of
voltage/frequency freely :
In case you want to drive the application which
requires high torque control without the motor
feedback :
In case you want to drive the application which
requires the high torque control at low frequency range
without the motor feedback.
In case you want to
- drive the application which requires high torque
control
- drive the application which requires the position
control with the motor feedback :
*) Depending on the load, applying the one size bigger inverter may be required. For more information,
refer to SJ700D-3 manual.
Start-up
-Using the reduced torque mode (A044=01)
-Use the light load mode (b049=01) to drive the motor
with the one size smaller inverter.
-Using Free V/f mode (A044=02)
-Using sensor-less vector mode (A044=03)*
-Using 0Hz sensor-less vector mode (A044=04)*
-Using vector control mode (A044=05)*
S - 13
Commissioning the drive