Actual Value Setting Without Loss Of The Referencing Status (Presetons) - Siemens SINUMERIK 840D sl Function Manual

JOG mode
● PRESETON must only be used on a stationary axis.
JOG mode, REF machine function
● PRESETON must not be used.
10.4.2.2

Actual value setting without loss of the referencing status (PRESETONS)

Function
The PRESETONS() procedure sets a new actual value for one or more axes in the machine
coordinate system (MCS). This corresponds to work offset of the axis MCS. The axis is not
traversed.
A preprocessing stop with synchronization is triggered by PRESETONS. The actual position is
not assigned until the axis is at standstill.
If the axis is not assigned to the channel at PRESETONS, the further procedure depends on the
axis-specific configuration of the axis interchange behavior:
MD30552 $MA_AUTO_GET_TYPE
Referencing status
By setting a new actual value in the machine coordinate system (MCS) with PRESETONS, the
referencing status of the machine axis is not changed.
Requirements
● Encoder type
PRESETONS is only possible with the following encoder types of the active measuring
system:
– MD30240 $MA_ENC_TYPE[<measuring system>] = 0 (simulated encoder)
– MD30240 $MA_ENC_TYPE[<measuring system>] = 1 (raw signal encoder)
● Referencing mode
PRESETONS is only possible with the following referencing mode of the active measuring
system:
– MD34200 $MA_ENC_REFP_MODE[<measuring system>] = 0 (no reference point
– MD34200 $MA_ENC_REFP_MODE[<measuring system>] = 1 (referencing of
Commissioning
Axis-specific machine data
Actual value setting without loss of the referencing status (PRESETONS) must be set axis-
specifically:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
approach possible)
incremental, rotary or linear measuring systems: zero pulse on the encoder track)
K2: Axis Types, Coordinate Systems, Frames
10.4 Coordinate systems
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