Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 48)

Basic Control Operation
Chapter 2
2-24
Press the red <EMERGENCY STOP> button on the MTB panel (or any other
E-Stop switches installed on the machine) to stop operations regardless of
the condition of the control and the machine.
WARNING: To avoid damage to equipment or hazard to
personnel, the system installer should connect the
<EMERGENCY STOP> button, so that pressing the button opens the
circuit connected to the E-STOP STATUS terminal on the
control. This should disable the axis drives and the spindle
drive circuits, which should both be connected to this terminal.
Refer to the integration manual or the documentation prepared
by your system installer for details.
If equipped with the standard MTB panel, the following occurs
automatically after you press the
<EMERGENCY STOP> button:
The control displays “E-STOP” in the message area. This indicates that
the control is in the emergency stop state.
The red light in the <CYCLE STOP> button lights up to indicate that the
control is in the feedhold state.
Power to all axis drive motors is turned off.
Important: If you press the <EMERGENCY STOP> button while a part
program is running, program execution can resume at the point of
interruption. Refer to the mid-program start feature described in chapter 7.
Before resetting the emergency stop state, first locate and eliminate the
cause of the emergency stop.
If the <EMERGENCY STOP> button is locked in the pressed position, it must
be released before the emergency stop state can be reset. The locked
button can be released in different ways depending on its type. With the
standard MTB panel, turn the button clockwise until it pops out.
To reset the emergency stop state, press the <E-STOP RESET> button. Once
you push the E--Stop Reset button to clear the E--Stop state, the message,
“RESETTING E--STOP” displays to alert you that the control is attempting
to come out of E--Stop. After the cause of the E--Stop is resolved, the
control clears the “E--STOP” message. If the error condition is not cleared,
the “RESETTING E--STOP” message clears, but the “E--STOP” message
continues to flash as the control remains in E--Stop state.
2.6
Emergency Stop Operations
2.6.1
Emergency Stop Reset