tgaljar
Member
I have a task to control temperature in vacuum chamber with 10 4,5kW heaters. For switching heaters ON/OFF I’m using mechanical contactors. For a control I'm using one PID loop that is modifying preset of one timer. That timer is defining heaters ON time. Another timer is measuring OFF time.
Because of mechanical contactors this ON/OFF times are quite long so accuracy is not so good. Is there any other control loop for this task, maybe two PIDs one defining ON time and other OFF.
Thanks!
Because of mechanical contactors this ON/OFF times are quite long so accuracy is not so good. Is there any other control loop for this task, maybe two PIDs one defining ON time and other OFF.
Thanks!