| 摘要 |
A method and system for monitoring brake performance in part-revolution clutch presses and the like comprising an overrun cam coupled to a switch for indicating passage of the press die beyond the nominal desired stop position and entry into a danger range indicative of impending brake failure. A control relay is coupled to the overrun cam switch for inhibiting press operation when impending brake failure is sensed. A time delay relay is coupled to a press operator responsive switch for inhibiting operation of the monitoring circuitry and permitting passage of the press die through the danger zone during normal press operation.
|
