Mitsubishi Electronics MDS-D2/DH2 Series Pager User Manual


 
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3 Safety Function
MITSUBISHI CNC
(3) Example of emergency stop circuit
[1] Outline of function
The power supply unit's external emergency stop can be validated by wiring to the CN24 connector, and
setting the parameters and rotary switch. If the emergency stop cannot be processed and the external
contractor cannot be shut off (due to a fault) by the CNC unit, the external contactor can be shut off by the
power supply unit instead of the CNC. At this time, both servo motor and spindle motor will stop with the
deceleration control.
EN60204-1 Category 1 can be basically complied with by installing the external emergency stop switch and
contactor.
The emergency stop is a signal used to stop the machine in an emergency. This is connected to the CNC unit.
Wire to the power supply unit when necessary.
The servo/spindle unit will be decelerated and controlled by the software according to the deceleration stop
command issued from the CNC unit.
CAUTION
1. The power supply unit external emergency stop function is a function that assists the NC emergency stop.
2. The emergency stop signal input to the CNC side cannot be used as a substitute for the external emergency stop
function.