| 摘要 |
<p>PURPOSE:To make it possible to individually execute emergency stop of respective working machines in the case of individually controlling the drive of plural working machines based on an independent and simultaneous control system by respectively providing plural control shafts with emergency stop signal input terminals for independently inputting emergency stop signals. CONSTITUTION:Since 1st-3rd control shafts 5, 9, 13 are normally closed contacts, current is allowed to flow into respective input terminals T4, T8, T12 respectively through a diode 20 until these switches are depressed. When the emergency stop switch 5 of the 1st control shaft is depressed, no current flows into the input terminal T4, a numerical controller detects the state and executes the emergency stop processing of only the 1st control shaft. When the emergency stop switch 9 for the 2nd control shaft is similarly depressed, the controller executes the emergency stop processing of only the 2nd control shaft, and at the time of depressing the emergency stop switch 13 or the 3rd control shaft, executes the emergency stop processing of only the 3rd control shaft. In the case of using respective control shafts of the numerical controller based on the independent and simultaneous control system, emergency stop of these control shafts can be independently executed.</p> |
