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Emergency reset input
P24V - EMGRST
(Main control unit)
Emergency stop
push-button
Emergency stop input
EMGA - EMGB
(Main control unit)
Servo contactor external control input
P24V - PONI
(Servo power supply unit)
or Power source for Servo contactor
Servo contactor (MC)
Servo axes
Note:
1)
The emergency stop signal controls the emergency stop state of the machine
tool. The signal is generated by B contact(s) of push-button(s) and some other
conditions. The signal is input to the CNC, servo power supply.
2)
When the emergency stop signal contact (EMGA - EMGB) on the main control
unit is closed and the emergency reset signal (P24V - EMGRST) is closed, The
CNC controller enters the emergency release state.
3)
When the emergency stop signal contact (EMGA - EMGB) on the main control
unit is opened, the CNC system enters the emergency stop. The main control
unit decelerates and stops all axes and send servo contactor off command to
the servo power supply.
4)
Due to the safety standard, the machine tool may require to control the servo
contactor (MC) without the servo contactor off command from the main control
unit. In this case, use the servo contactor external control input (P24V - PONI)
on the servo power supply unit or control the external power source for the
servo contactor.
Reset
Fig. 7.1.2
– 110 –
Push
Off delay timer
Deceleration
& Stop
STE 73843
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