Differential pressure PLC controller – Abacus

The controller is developed to control the series of Auto-line automatic self-cleaning filters for use in the process industry. The controller controls the filter’s cleaning- and drainage sequence where there are adaption possibilities to achieve optimum operation. The process can be controlled by the differential pressure over the filter or/and with help from timers built in the program. The cleaning process is run either with a motor or a cylinder.

The filter can both be controlled by means of the differential pressure over the filter as well as running an operation, where the cleaning process runs continuously.

It can control up to four drain valves connected to the filter in a sluice solution, where two of the valves are flush valves, that help the drain process. For an Auto-line filter with one drain valve, valves can be selected both with and without feedback. For filters with a minimum of two valves, they have to be with feedback.

Features:
• Customized for Auto-line filters

• Intuitive and flexible user interface

• High operational reliability with built-in Siemens S7 PLC for industrial use

• Possibility to monitor operation values

• Designed for:
– Differential pressure
– Continuous operation

• System information logging