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plc:how_to_add_mandatory_homing_after_emergency_button_and-or_servo_ready_alarm

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plc:how_to_add_mandatory_homing_after_emergency_button_and-or_servo_ready_alarm [2019/07/12 15:52]
ivan
plc:how_to_add_mandatory_homing_after_emergency_button_and-or_servo_ready_alarm [2019/09/05 13:24] (current)
ivan
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 For many CNC applications,​ it's very important to have precise machine position all the time. The homing procedure should be done to find the correct machine position if any servo driver fault happens or if the Emergency button is pressed. ​ For many CNC applications,​ it's very important to have precise machine position all the time. The homing procedure should be done to find the correct machine position if any servo driver fault happens or if the Emergency button is pressed. ​
  
-Mandatory Homing procedure handler can be implemented with **Software PLC**+Mandatory Homing procedure handler can be implemented with **Software PLC**
 + 
 +{{:​plc:​homing-handler-002.png}} 
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 +**NOTE:** The homing procedure handler is OFF by default as it has the exit(99); line in the beginning of the program which immediately terminates the PLC as soon as it is started. In order to enable the homing procedure handler, add two forward slashes in front of the exit(99); line to comment it out so that the PLC can proceed uninterrupted:​ 
 + 
 +{{:​plc:​homing-handler-003-comment.png}}
  
 There are Homing flags situated in global variables 7391-7399 There are Homing flags situated in global variables 7391-7399
plc/how_to_add_mandatory_homing_after_emergency_button_and-or_servo_ready_alarm.txt · Last modified: 2019/09/05 13:24 by ivan