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US 2018/0294762 A1Published application
Motor control system, motor controller, and method for setting safety function
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsIsamu Matsumura, Junya Hisamatsu
Life of this patent
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Abstract
A motor control system includes a motor, and motor control circuitry that controls driving electric power for the motor based on a driving state quantity of the motor, and upon input of a safety request signal from outside the motor control circuitry, monitors a relationship between a driving state quantity and an operation monitor pattern selected from multiple kinds of operation monitor patterns using multiple simultaneously functioning safety function software modules.
Claims20
A motor control system, comprising:
- a motor;
- and
- motor control circuitry configured to control driving electric power for the motor based on a driving state quantity of the motor, and upon input of a safety request signal from outside the motor control circuitry, monitor a relationship between a driving state quantity and an operation monitor pattern selected from a plurality of kinds of operation monitor patterns using a plurality of simultaneously functioning safety function software modules.
A motor control apparatus, comprising:
- control circuitry that controls driving of electric power for a motor and is configured to, upon input of a safety request signal indicating whether to decelerate and/or stop the motor, monitor a relationship between a driving state quantity and an operation monitor pattern selected from a plurality of kinds of operation monitor patterns using a plurality of simultaneously functioning safety function software modules.
A method for controlling a motor, comprising:
- selecting an operation monitor pattern from a plurality of kinds of operation monitor patterns;
- setting the operation monitor pattern selected as a monitor target;
- and
- inputting a monitor result obtained by a first safety function software module among a plurality of simultaneously functioning safety function software modules into a second safety function software module among the plurality of safety function software modules as a safety request signal for the second safety function software module,
- wherein the motor is controlled using a motor control circuitry that controls driving of electric power for the motor and that is configured to, upon input of the safety request signal indicating whether to decelerate and/or stop the motor, monitor a relationship between a driving state quantity and the operation monitor pattern using the plurality of simultaneously functioning safety function software modules.
2 more elements
Dependencies are inferred from the claim text.