Referencing By Means Of Actual Value Adjustment; Actual Value Adjustment To The Referencing Measurement System - Siemens SINUMERIK 840D sl Function Manual

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R1: Referencing

15.7 Referencing by means of actual value adjustment

MD30340 $MA_MODULO_RANGE_START (start position of the modulo range)

The reference point position is mapped onto the assigned (ghost) modulo range even with axis

function "Determination of reference point position rotary, distance-coded encoder within the

configured modulo range":

MD30455 $MA_MISC_FUNCTION_MASK (axis functions), BIT1 = 1

Referencing by means of actual value adjustment

When actual value adjustment to the referencing measuring system is performed, the resulting

absolute actual position after successful referencing of the measuring system of a machine

axis is transferred directly to all other measuring systems of the machine axis, and the machine

axis is designated as referenced:

DB31, ... DBB60.4 / 60.5 (referenced/synchronized 1/2) = 1

When the machine axis switches from an explicitly referenced measuring system to the

measuring system referenced by actual value adjustment, continuous servo control is assured

(servo enable active) because the matched actual position prevents a sudden change in actual

In order to improve positioning precision by determining the measuring-system-specific

encoder fine information, we recommend explicitly re-referencing the measuring system

previously referenced by actual value adjustment after switching over.

The activation of the actual value adjustment to the referencing measuring system is machine-

specifically carried out via:

MD34102 $MA_REFP_SYNC_ENCS = 1

Function Manual, 01/2015, 6FC5397-0BP40-5BA2

Basic Functions

Sinumerik 828d Sinumerik 840de sl