Power source control circuit for working machine

A power source control circuit for a working machine includes an electric circuit connecting a key cylinder (3), controller (6) and accessories (2). The electric circuit is provided with a first self-holding relay (8) drivable directly by a relay drive signal outputted from the controller (6) and se...

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Bibliographische Detailangaben
Hauptverfasser:	Yabuuchi, Motoyuki, Shimamura, Tadatoshi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES DREDGING FIXED CONSTRUCTIONS FOUNDATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS HYDRAULIC ENGINEERING LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR STARTING OF COMBUSTION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A power source control circuit for a working machine includes an electric circuit connecting a key cylinder (3), controller (6) and accessories (2). The electric circuit is provided with a first self-holding relay (8) drivable directly by a relay drive signal outputted from the controller (6) and second self-holding relays (10,12) drivable in conjunction with the first relay (8). When a gate lock switch (5) is switched to a lock position while an engine is running, the controller (6) outputs an engine stop signal at a subsequent predetermined timing to stop the running of the engine, and also outputs the relay drive signal to drive the first relay (8) and the second relays (10,12) such that a key-on power supply and an accessory power supply are each held in a cut-off state.