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US 2015/0083260 A1Published application
Solenoid valve system
AssigneeSMC Corporation
InventorsFumio Morikawa, Noaki Sakamura
Life of this patent
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Abstract
In a solenoid valve system, a plurality of first through third solenoid valve units are divided into a plurality of first through third groups. In this case, a safety power source control unit is provided for controlling the first through third solenoid valve units with respect to each of the first through third groups.
Claims14
A solenoid valve system having a plurality of solenoid valve units provided in the form of a manifold, the solenoid valve units being controlled respectively by control signals,
- wherein the plurality of solenoid valve units are divided into a plurality of groups;
- the solenoid valve system further comprises a control unit for directly controlling solenoid valves in the plurality of solenoid valve units with respect to each of the plurality of groups, regardless of the control signals;
- and
- wherein, in a condition in which the control signals are input to the solenoid valve units, the control unit switches between an operable state in which the solenoid valve units are capable of being controlled, and an inoperable state in which the solenoid valve units cannot be operated.
1 more element
Dependencies are inferred from the claim text.