Electronic control system for magnetic valves operated individually or in cascade
First Claim
1. An electronic control system for individually operated magnetic valves and for valve cascades with a magnetic valve operated as a pilot valve which controls a main valve acted upon by a pressure medium, the electronic control system comprising a regulator generating a regulating voltage for a magnetic valve;
- a signal input for an actual value of a valve position of a main valve;
a switching logic which adjusts the electronic control system to individual operation when a constant level characterizing the individual operation is present at the signal input or adjusts the electronic control system to pilot operation when an actual value of a valve position of the main valve is present at the signal input, said regulator deriving the regulating voltage from a comparison of a reference value with the actual value of the magnetic valve in individual operation and from a comparison of the reference value and the actual value of the main valve in pilot operation.
1 Assignment
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Accused Products
Abstract
An electronic control system for individually operated magnetic valves and valve cascades automatically switches to individual operation or cascade operation by a switching logic. The switching logic detects the presence of an actual value signal of a main valve of a valve cascade so that the electronic control system is automatically adjusted to cascade operation in this case. In the absence of an actual value of the main valve, a cable interruption is detected and the final stage is locked. At-14 Volts at the main stage actual value input, the electronic control system is adjusted to the individual operation of a magnetic valve.
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Citations
4 Claims
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1. An electronic control system for individually operated magnetic valves and for valve cascades with a magnetic valve operated as a pilot valve which controls a main valve acted upon by a pressure medium, the electronic control system comprising a regulator generating a regulating voltage for a magnetic valve;
- a signal input for an actual value of a valve position of a main valve;
a switching logic which adjusts the electronic control system to individual operation when a constant level characterizing the individual operation is present at the signal input or adjusts the electronic control system to pilot operation when an actual value of a valve position of the main valve is present at the signal input, said regulator deriving the regulating voltage from a comparison of a reference value with the actual value of the magnetic valve in individual operation and from a comparison of the reference value and the actual value of the main valve in pilot operation. - View Dependent Claims (2, 3, 4)
- a signal input for an actual value of a valve position of a main valve;
Specification