Vista P4-S(E), Manual

Page: 10 / 11

www.vistacnc.com
- 10 -
www.vistacnc.com
- 10 -
P4-S Pendant UCCNC Manual v. 1.0
5. E-Stop switch button
5.1 E-Stop switch button in P4-S model
 Press E-STOP switch button to send out E-Stop signal to UCCNC application and activate
Emergency Mode in UCCNC.

When the button is pressed, the switch is locked down. Twist the button to reset the button and
reset E-STOP.
5.2 E-Stop switch button in P4-SE model
 Press E-STOP switch button to send out E-Stop signal to UCCNC application and activate
Emergency Mode in UCCNC.
 The same E-stop signal is simultaneously sent out through a 2-wire loop, which can be used to
control a relay or to connect with other E-stop buttons.
 When the button is pressed and the switch is locked down, the 2-wire loop is open.
 Twist the button to reset the switch and reset E-STOP signal, and at the same time, the two
wires are connected at the switch end and form a closed loop.
 A EE box is needed as an interface to separate the 2-wire loop and USB signal.