94
Operation mode
The MV820 drive has two operation modes for vector control:
(1) Speed control: controls the motor speed precisely. P05 and P22 function groups shall be set.
(2) Torque control: controls the motor torque precisely. P06 and P23 function groups shall be set.
The MV820 drive supports online switchover of these operation modes.
5.2.4 Drive frequency and torque channel
(1) Frequency reference channel under the speed control mode
There are five running modes for the MV820 speed control mode, including jog running, process closed-loop running,
PLC running, multi-speed running and common running. The running mode is selected through the P02.05 channel. The
priority is shown in Fig. 5-8.
Fig. 5-8 Running mode selection under speed control
The five running modes indicate five basic frequency sources. The common running frequency source can be processed
with auxiliary frequency superposition and frequency adjustment, while each of “jog running”, “PLC running”,
“multi-speed running” and “process closed-loop running ” serves as an independent running channel of the main
frequency, among which “PLC running” has various frequency source reference channels. For details, refer to the
function codes for “PLC running” frequency reference selection. The running modes are described below:
To Next Page
