Showing posts with label safety-related control system. Show all posts
Showing posts with label safety-related control system. Show all posts

Tuesday, April 3, 2012

System Examination: Implementation Examples

Servo converters with drive-integrated motion monitoring and safe pulse disabler for shutdown
Implementation Example with Servo Amplifier
Sensor evaluation is undertaken, for example, by a small, safety-related control system, which activates the safety functions in the drive via a safe I/O interconnection. The servo motor has an integrated sine/cosine motor  encoder for motor control and positioning. The reaction time before the safety function is activated is around 60 ms, the reaction time when limit values are violated is < 10 ms.


Safely monitored drive with frequency converter and asynchronous motor
Implementation Example with Frequency Converter
An incremental encoder is used to detect motion. A safety relay or a small, safety-related control system with motion monitoring evaluates the sensor signals and triggers an STO function in the event of an error.