Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Functions, monitoring and protective functions
9.4 Extended functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
661
9.4.7.4 Referencing
Description
Once a machine has been switched on, the absolute dimensional reference to the machine’s
zero point must be established for positioning purposes. This procedure is referred to as
referencing.
The following types of referencing are available:
● Setting reference point (all encoder types)
● Active referencing (reference point approach (p2597 = 0), with incremental encoder):
–
Referencing cam and encoder zero mark (p2607 = 1)
– Encoder zero mark (p0495 = 0 or p0494 = 0)
– External zero mark (p0495 ≠ 0 or p0494 ≠ 0)
● Flying referencing (passive (p2597 = 1), with incremental encoder)
● Absolute encoder adjustment (with absolute value encoder)
● Absolute encoder adjustment with offset acceptance (with absolute encoder)
● Flying referencing (passive (p2597 = 1), with absolute encoder)
A connector input is provided to enter reference point coordinates for all types of referencing.
This allows e.g. changes/input via the higher-level control. An adjustable parameter for this
variable is however needed for the fixed specification of reference point coordinates. This
adjustable parameter p2599 is connected to connector input p2598 as standard.
Note
No distance-coded zero marks
Referencing of distance-coded zero marks is not supported.
Set reference point
The reference point can be set using a 0/1 edge at binector input p2596 (set reference point)
if no traversing commands are active and the actual position value is valid (p2658 = 1-signal).
A reference point can also be set for an intermediate stop.
The current actual position of the drive is set here as the reference point using the
coordinates specified by connector input p2598 (reference point coordinates). The setpoint
(r2665) is adjusted accordingly.
This function also uses actual position value correction for the position controller (p2512 and
p2513). Connector input p2598 is connected to adjustable parameter p2599 as standard.
The binector input is not effective for the traversing task being presently executed.