Power controllers

THV

■Cascade temperature control in diffusion furnace

If there is a large time lag between the controlled object and the heat source, the cascade control could be suitable. The control output from the primary controller (Master) is input into the secondary controller (Slave). The secondary controller conducts temperature control of the heat source while correcting the temperature setpoint with the control output from the primary controller. Cascade control can be achieved with a single FZ400/FZ900.

■Highly accurate temperature control of T-die

Enables highly accurate temperature control using power controllers. Use of Automatic temperature rise function* of SRZ enables a uniform temperature rise in the T-die. * Function to increase the temperature of all zones at the same rate.