DRIVING SYSTEM FOR POWER-ON DISPLAY INDICATOR

DRIVING SYSTEM FOR POWER-ON DISPLAY INDICATOR

PURPOSE:To save electric power by using a self-holding type relay for turning a power-on display LED on or off. CONSTITUTION:When a maintenance man depresses a set switch 104 for a period required to make a contact r108, a relay drive pulse (p) is generated from a control circuit 110, and a current...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HORIBE TOSHIO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE:To save electric power by using a self-holding type relay for turning a power-on display LED on or off. CONSTITUTION:When a maintenance man depresses a set switch 104 for a period required to make a contact r108, a relay drive pulse (p) is generated from a control circuit 110, and a current flows in a set coil 106 to make the contact r108. A current flows in a power-on LED 109 to turn it on. To turn the power-on LED 109 off, the maintenance man depresses a reset switch 105 for a period required to break the contact r108, then a relay reset pulse (q) is generated from the control circuit 110, a current flows in a reset coil R107, and a self-holding relay 103 is restored to break the contact r108. The power-on LED 109 is turned off.