5.4 W
IRING
E-S
TOP
E-Stop Wiring:
The switch must be closed when the machine is in it's operational state. Wiring E-Stop in a normally open
configuration is dangerous as it will not stop the machine in the event that a wire breaks.
1. E-Stop Switch:
Use a double pole single throw (DPST), normal closed, twist to release, emergency stop switch. Centroid
part number #1009 used with #5934 is recommended, shown in figure 5.4.1.
2. Snubber:
A snubber needs to be placed across the E-Stop contactor coil. Centroid
recommends using Quencharc snubber networks (Centroid PART# 1819). This reduces
electrical noise when the motor power is cycled on and off.
Testing E-Stop Wiring:
3.
Power up your system.
4.
Start CNC11 and press F10 to continue to the main screen.
5.
In the main menu press alt + I to bring up the real time I/O display.
6.
Navigate input 11 with the arrow keys.
7.
If there is a bar over the input, press ctrl-alt-i until the bar over the input in the display is removed.
8.
Toggle the E-Stop. Confirm that input 11 is green when the E-Stop is released (not tripped), and red when the E-Stop is
pressed.
9.
Check that output 1 is green and the E-Stop contactor coil is closed.
Page 30 of 72
5.4 Wiring E-Stop
T:\_Docs working\Oak Board Manual\Oakboard install manual V2 4-10-15.odt
Figure 5.4.2
E-Stop Wiring
Figure 5.4.1
E-Stop
Summary of Contents for OAK
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