The solution became, 18 heating sections with individual control loops that control the 72 heaters via pulse control.
The very high temperatures place great demands on technology and materials. Therefore, all temperature measurements are built with thermocouples that can measure high temperatures relatively accurately.
The entire control is handled by a Siemens Simatic 1500SP with a Simatic ET 200SP Profinet node and all operation of the system is done from a Simatic KTP700 HMI panel.
Existing electrical documentation was implemented in a new set of electrical diagrams, so that everything was kept up to date after commissioning and delivery.