Difference between revisions of "Hard Stop"
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You need a buy an emergency stop button (can be bought in most electronic shops). They all function in the same way, which is a "Normally closed push-button" | You need a buy an emergency stop button (can be bought in most electronic shops). They all function in the same way, which is a "Normally closed push-button" | ||
[[File:stopbutton.jpg|thumb|center|600px|Emergency stop button]] | [[File:stopbutton.jpg|thumb|center|600px|Emergency stop button]] | ||
| − | Usually Emergency stop buttons have 4 pins (industrial safety regulations require the safety systems to be redundant), however, to enable hard stop in youBot you only need 2 pins. Remaining two can be shorted. | + | Usually Emergency stop buttons have 4 pins (industrial safety regulations require the safety systems to be redundant), however, to enable hard stop in youBot you only need 2 pins. Remaining two can be shorted. |
== Connecting == | == Connecting == | ||
Revision as of 15:27, 19 December 2014
Emergency stop (Hard stop). Cuts down the power of all motors (platform and arm). Since the arm motors have no brakes, the arm can/will collapse.
Hardware
You need a buy an emergency stop button (can be bought in most electronic shops). They all function in the same way, which is a "Normally closed push-button"
Usually Emergency stop buttons have 4 pins (industrial safety regulations require the safety systems to be redundant), however, to enable hard stop in youBot you only need 2 pins. Remaining two can be shorted.
Connecting
Only Pin 1 and 2 have to be connected with an Emergency Stop Button, which is nothing else than a 'Normally closed push-button' as shown below. Pin 3 should not be connected.
As written in the documentation when Pin 1 and 2 are connected (Closed CIrcuit) youBot will function and at Open Circuit, communication or Power will be cut down, if connected as Soft Stop or Hard Stop accordingly.
