Megmeet MV820 - Operation Status; Control Mode and Operation Mode

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(2) Control terminals: use the multi-function terminals 4, 5, 6, 8, 7, 10, 12, 16 (set to digital input FWD or REV) and P09.14
designated GND (two-wire), Dli (three-wire) terminals to control.
(3) Serial port: use the communication interface to control the start and stop.
(4) Field bus: use the field bus (such as PROFINET) to control the start and stop.
The command channel can be selected through the function code P02.02, the “ ” multi-function key and the
multi-function input terminal selection (No.38, No.39 and No.40 functions for P09.03 to P09.10)
Before switching the channels, make sure that you have done necessary commissioning. Otherwise, there will be
equipment damage and personal injuries.
5.2.2 Operation status
The operating states of MV820 include the stop status, running status and motor parameter auto-tuning status.
(1) Stop status: if there is no operation command after the drive is started and initialized, or the stop command is
executed during operation, the drive will enter the stop status immediately.
(2) Running status: the drive will enter the running status once receiving the running command.
(3) Motor parameter auto-tuning status: if there is any running command after the function code P03.27 is set to 1 or 2,
the drive enters the motor parameter identification status. After identification is completed, the drive will enter the
stop status.
5.2.3 Control mode and operation mode
Control mode
The MV820 drive has three control modes, set by the function code P02.00:
(1) Vector control without PG: it refers to the vector control without a speed sensor. In this mode, although no PG is
installed, the drive can perform desirable torque control and speed control, achieving high torque on low frequencies
and high constant speed precision. The mode is usually used in scenarios requiring high robustness which the V/F
control mode can not satisfy.
(2) V/F control: it is used in ordinary scenarios requiring moderate performance, for example, using a single drive to
control multiple motors.
(3) Vector control with PG: a PG needs to be installed. It is recommended to install the PG on the controlled motor shaft
to ensure control performance. The mode is suitable for scenarios requiring fast torque response, high torque and
speed control precision.