General Description
2. General Description
2.1 General
The HE 5721 solenoid valve control system is used for pulse activation of solenoid valves in air
pollution control systems.
The HE 5721 permits numerous controlling and monitoring functions and can be extended by a
differential pressure measuring and control system.
Cleaning can be effected on either a time-controlled or differential pressure basis with switching
thresholds or pause time control.
The valves are monitored to detect open or short-circuits. Optionally, the valve function can be
checked mechanically by means of a pressure switch.
The p extension unit can be used to check a maximum differential pressure.
2.2 Options
Relays: 1 operating / malfunction relay and 1 relay cleaning
Pressure switch: Mechanical valve function monitoring by means of a pressure switch
(The pressure switch is not part of the delivery but can be ordered
separately)
Valve extension: Attachable board for extension of 12 valve outputs
p-extension: Attachable board for measuring and controlling the differential pressure
*Frontpanel: The device is available as a version with frontpanel. The device is
available as a version with frontpanel. The device described is not
subsequently expandable with a frontpanel.
Connecting-kit: Screw connections and cabel connections depend on the number of valves.
For details see technical data.
Power supply: 24 VDC
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