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S210 positioning axis technology object get freeze switch limit
Created by: gjimenez at: 3/8/2021 12:03 PM (4 Replies)
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| 3/10/2021 2:09 PM | |
Joined: 10/11/2006 Last visit: 10/9/2024 Posts: 5910 Rating:
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Hello, Retracting The position of the axis when the hardware limit switch is detected is stored internally on the CPU. The status of the reached hardware limit switch is reset only after the hardware limit switch is left and the axis is once again in the maximum traversing range. To retract the axis after it reaches the hardware limit switch and to reset the status of the hardware limit switch, follow the steps below: 1. To enable motion in the retraction direction, acknowledge the technology alarm. 2. Traverse the axis in the retraction direction until the hardware limit switch is left. The axis must then be within the maximum traversing range. If you move the axis opposite the retraction direction before the hardware limit switch is left, the monitoring will be triggered again. 3.9.1 Hardware limit switches (S7-1500, S7-1500T) https://support.industry.siemens.com/cs/de/en/view/109766462 |
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With best regards, |
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| 3/11/2021 8:41 AM | |
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Joined: 10/11/2006 Last visit: 10/9/2024 Posts: 5910 Rating:
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Hello, maybe HW limit switch was activated by hand, when moving in other direction The only reason for a restart depending on HW-Limitswitch is: Technology alarm 531 Page 170. https://support.industry.siemens.com/cs/de/en/view/109766459 HW limit switch polarity reversed, free travel not possible. Both hardware limit switches active, retraction not possible. Remedy Check the mechanical configuration of the hardware limit switch. • Check the limit switches. • The error can be acknowledged by switching the controller off and on or using "MC_Reset" with "Restart" = TRUE.
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With best regards, |
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