Siemens SIMOTICS S-1FL6, Руководство по эксплуатации

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Control functions
7.2 General functions
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2019, A5E36037884-007
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Function behavior in IPos control mode
When the drive is working In IPos traversing block mode, if a traversing block is processed
with the FIXED STOP command (p2621[0...7] = 2), the function starts. You can set a torque
limit for the FIXED STOP function. An adjustable monitoring window for travel to fixed stop
prevents the drive from traveling beyond the window if the fixed stop should break away.
Parameter Range Value Description
p2621[0...7] 1 to 2 1 (default) POSITIONING
2 FIXED STOP
From the start position onwards, the target position is approached with the parameterized
speed (p2618). The fixed stop (the workpiece) must be between the start position and the
braking point of the axis; that is, the target position is placed inside the workpiece. The
preset torque limit is effective from the start, i.e. travel to fixed stop also occurs with a
reduced torque. The preset acceleration and deceleration overrides and the current speed
override are also effective. When the fixed stop is reached, the drive sets the digital output
torque limit reached (TLR).
Note
F7452 is disabled when the function of travelling to fixed stop is activated.
Fixed stop is reached
As soon as the axis comes into contact with the mechanical fixed stop, the closed-loop
control in the drive raises the torque so that the axis can move on. The torque increases up
to the value specified in the task and then remains constant. If the actual position following
error exceeds the value set in parameter p2634 (fixed stop: maximum following error), fixed
stop is reached.
Once the "Fixed stop reached" status has been detected, the traversing task "Travel to fixed
stop" is ended.