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Functions, monitoring and protective functions
9.4 Extended functions
● Reference point approach, step 1: Travel to reference cam
If there is no reference cam (p2607 = 0), then go to step 2.
When the referencing process is started, the drive accelerates at maximum acceleration
(p2572) to the reference cam approach velocity (p2605). The direction of the approach is
determined by the signal of binector input p2604 (reference point approach start
direction).
The drive is informed that the reference cam has been reached by the signal at binector
input p2612 (reference cam). The drive is then decelerated to a standstill using the
maximum delay (p2573).
If a signal at binector input p2613 (reversing cam, MINUS) or at binector input p2614
(reversing cam, PLUS) is detected during reference point approach, the search direction
is reversed.
If the "reversing cam, MINUS" is approached in the positive direction, or the "reversing
cam, PLUS" is approached in the negative direction, fault F07499 (EPOS: reversing cam
approached with the incorrect traversing direction) is output. In this case, the wiring of the
reversing cam (p2613, p2614) and/or the traversing direction for approaching the
reversing cam must be checked.
The reversing cams are low active. If both reversing cams are active (p2613 = "0" and
p2614 = "0"), then the drive remains stationary. As soon as the reference cam is found,
then synchronization to the reference zero mark is immediately started (refer to step 2).
If the axis leaves its start position and travels the distance defined in parameter p2606
(max. distance to reference cam) heading towards the reference cam without actually
reaching the reference cam, the drive remains stationary and fault F07458 (reference
cam not found) is issued.
When starting the referencing process, if the axis is already at the cam, it does not have
to travel to the reference cam and instead synchronization to the reference zero mark is
started straight away (see step 2).
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Operating Instructions, 12/2018, A5E36652151A
Enclosed Drives
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