Siemens SINAMICS S150 NEMA, Operating Instructions Manual

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Functions, monitoring and protective functions
9.4 Extended functions
Enclosed Drives
648
Operating Instructions, 12/2018, A5E36652151A
Parameters
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p2530
CI: LR setpoint position
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p2532
CI: LR actual position value
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p2542
LR zero-speed window
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p2543
LR zero-speed monitoring time
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p2544
LR positioning window
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p2545
LR position monitoring time
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p2546
LR dynamic following error monitoring tolerance
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p2547
LR cam switching position 1
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p2548
LR cam switching position 2
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p2551
BI: LR setpoint message present
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p2554
BI: LR travel command message active
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r2563
CO: LR latest following error
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r2683.8 Actual position value <= cam switching position 1
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r2683.9 Actual position value <= cam switching position 2
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r2684
CO/BO: EPOS status word 2
9.4.6.4 Measuring probe evaluation and reference mark search
Description
Binector inputs p2508 (activate reference mark search) and p2509 (activate measurement
probe evaluation) can be used to trigger and run the "measurement probe evaluation" and
"reference mark search" functions. Binector inputs p2510 (measurement probe selection)
and p2511 (measurement probe edge evaluation) define the mode for measurement probe
evaluation.
The probe signals are recorded via the encoder encoder status and control word. To speed
up signal processing, direct measuring probe evaluation can be activated by selecting the
input terminals for probes 1/2 via p2517 and p2518. Measuring probe evaluation is carried
out in the position controller cycle, whereby the set send clock cycle of the controller
(r2064[1]) must be an integer multiple of the position controller cycle (p0115[4]).
The system outputs a message if the same probe input is already being used (see also
p0488, p0489, p0580, and p0680).
The appropriate function is started using a 0/1 edge at the appropriate input (p2508 (activate
reference mark search) or p2509 (activate measuring probe evaluation)) via the encoder
control word. Status bit r2526.1 (reference function active) reports the activity of the function
(feedback from sensor status word). Status bit r2526.2 (measurement value valid) shows the
presence of the measurement required r2523 (position for reference mark or measurement
probe).