Details on setting home and limit switches
Hi Hager,
The +limits (the ones at the opposite end to the home switches) are only there to catch an issue where the software hasn’t stopped the axis. I.e, lost steps, etc.
When you set up the home switch in Mach, you should also enter the max distance the axis can move from the home switch.
When that is done the software will stop the axis from traveling too far. In this situation the +limit switch will never be triggered.
Many machines don’t have a +limit switch and just rely on the software to manage the maximum axis travel.
In the end it depends on the damage the machine will do if it doesn’t stop and crashes into the endstop. In a small machine, the stepper will stall and no damage done.
On a large servo machine, it could destroy the servo and cause mechanical damage so a limit switch is required.
Cheers
Peter
Sent from my iPhone using Tapatalk Pro
-------------------------------------------------
Homann Designs - http://www.homanndesigns.com/store