Basic Motor Parameter Settings - Omron M1 Series User Manual

6 Vector Control and Applied Functions
Vector Control with Speed Sensor (Induction Motor)
Speed control is performed based on the motor rotation position and speed detected according to the
feedback signal from the motor's PG, motor current is further divided into excitation current and torque
current, and vector control for controlling each of these currents is performed. The required response
can be achieved by adjusting the control constants (PI constants) with speed control (PI controller).
Compared with speed sensorless vector control, vector control with speed sensor affords speed con-
trol with even higher accuracy and faster response.
Sensorless Vector Control (Synchronous Motor)
Speed control is performed based on the motor speed inferred from voltage and current, motor current
is further divided into excitation current and torque current, and vector control for controlling each of
these currents is performed. The required response can be achieved by adjusting the control con-
stants (PI constants) of speed control (PI controller).
Vector Control with Speed Sensor (Synchronous Motor)
Speed control is performed based on the motor rotation speed and magnetic pole position detected
according to the feedback signal from the motor's speed/magnetic pole position sensor, motor current
is further divided into excitation current and torque current, and vector control for controlling each of
these currents is performed. The required response can be achieved by adjusting the control con-
stants (PI constants) of speed control (PI controller). Compared with sensorless vector control, vector
control with sensor affords a wider speed control range and speed control with higher response.
6-1-2

Basic Motor Parameter Settings

Set the basic parameters for motor control and protection.
Setting the correct motor parameters to the inverter is effective in stabilizing motor behavior as appro-
priate values are obtained for the control result.
• Match the base frequency to the rated frequency stipulated for the motor. Setting the base frequen-
cy lower than the rated frequency might result in motor burnout.
• The rated frequency of a general induction motor is designed to be within the range 50 to 60 Hz.
When setting the maximum frequency to 60 Hz or higher, check the maximum allowable frequency
in the motor specifications. Setting a maximum frequency and rated voltage exceeding the motor
specifications might result in motor burnout.
6-4
M1 Series Standard Type User's Manual (I669)