To have torque at 0 RPM speed in ATV320 configure: Continuous fluxing or Continuous DC injection functions.
But the continuous fluxing will offer very small torque (no really torque).
DC injection could be a little bit better because user can select the current level to inject but it could not be of order motor nominal torque.
There is no better solution in open loop vector control mode for ATV320 drives.
Possible solution is to connect encoder and operate drive in closed loop - Flux Verctor Control mode. This option is not applicable in case using ATV320 family drives rather
user can switch to ATV71 / ATV9xx process family drives.
But the continuous fluxing will offer very small torque (no really torque).
DC injection could be a little bit better because user can select the current level to inject but it could not be of order motor nominal torque.
There is no better solution in open loop vector control mode for ATV320 drives.
Possible solution is to connect encoder and operate drive in closed loop - Flux Verctor Control mode. This option is not applicable in case using ATV320 family drives rather
user can switch to ATV71 / ATV9xx process family drives.
Released for:Schneider Electric India
