Siemens SIMOTICS S-1FL6, Руководство по эксплуатации

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Control functions
7.2 General functions
SINAMICS V90, SIMOTICS S-1FL6
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Operating Instructions, 04/2019, A5E36037884-007
7.2.4 Over-travel
When the servo motor travels over the distance limit, the limit switch is turned on and then
the servo motor has an quick stop.
Note
The function is unavailable in the Fast PTI control mode.
Travel limit signal (CWL/CCWL)
In S, T, PTI, or IPos control mode, the motor rotates properly after you do as follows:
● When F7492 is triggered after the STOP cam plus is reached in a positive traversing
direction, acknowledge the fault using the RESET signal, and then move the axis away
from the STOP cam plus in a negative traversing direction to return it to a position within
the valid traversing range.
● When F7491 is triggered after the STOP cam minus is reached in a negative traversing
direction, acknowledge the fault using the RESET signal, and then move the axis away
from the STOP cam minus in a positive traversing direction to return it to a position within
the valid traversing range.
WARNING
Danger to life or malfunctions of the machine due to the motor travelling over the distance
limit
In T control mode, the motor travels over the distance limit if you only acknowledge the fault
without returning the axis to a position within the valid traversing range.
In S control mode, the motor travels over the distance limit if you only acknowledge the fault
without returning the axis to a position within the valid traversing range while signal CWL or
CCWL becomes from a low level (logic 0) to a high level (logic 1).
•
Acknowledge the fault, and then return the axis to a position within the valid traversing
range to prevent the motor from travelling over the distance limit.
Note
•
Make sure both signals CWL and CCWL are at a high level when the servo drive is
powered on.
• In S control mode, the motor cannot rotate with no fault if you only acknowledge the fault
without returning the axis to a position within the valid traversing range while signal CWL
or CCWL keeps at a low level.
•
In PTI or IPos control mode, the motor cannot rotate with F7491/F7492 being triggered
again, if you only acknowledge the fault without returning the axis to a position within the
valid traversing range.