5function blocks – Lenze E94A User Manual
Page 364
5
Function blocks
5.98
L_LdSyncOperation - master value connection
364
Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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dnXPosIn_p
DINT
Selection of the master position in [inc]
• The master position must not exceed the permissible modulo value range of the
master measuring system (the XAxisData input).
• If the position changes considerably at this input, it may become impossible to
display the values at the dnXSpeedOut_s and/or dnYSpeedOut_s outputs. In this
case, the position reference between master drive and slave drive would get lost!
• C05094 indicates the master position in the real unit of the machine.
dnXOffset_p
DINT
Selection of the master value adjustment (x offset) in [increments]
• It is permissible for the trimming value to be outside of the modulo value range
of the master measuring system, but it must not be outside of the DINT value ran-
ge minus the master cycle
(DINT value range = ±2
31
-1 [increments] ≡ ±32768 [rev]).
• The resulting master value (the dnXActPos_p output) will be included in the mo-
dulo cycle of the master measuring system.
• C05094 displays the effective x offset in the real unit of the master measuring
system.
• Sudden changes in the offset position cause sudden responses of the drive moti-
on!
Provide for smooth offset adjustment (e.g. via the
FB).
XAxisData
Selection of the measuring system of the master drive for scaling the master value
The following sources can be used for this input:
• Any master measuring system can be defined via the
FB. In this
case, its AxisData output must be connected to this input.
• Some of the cam technology function blocks (e.g. the
FB) output
the measuring systems defined via »Cam Designer«. In this case, the correspon-
ding measuring system output must be connected to the XAxisData input.
Note:
In most cases, master measuring systems are of the "modulo" type. However, both
limited and unlimited measuring systems are also possible.
If the FB is operated in the "Coupling via cycles" operating mode (C05090 = 1), it is
mandatory for the measuring system to be a modulo measuring system.
YAxisData
Selection of the measuring system of the slave drive for scaling the setpoint
• This input typically receives drive measuring system data (the DI_AxisData out-
put of the LS_DriveInterface SB).
Note:
Basically, all measuring system types (limited, unlimited, modulo) are permissible.
If the FB is operated in the "Coupling via cycles" operating mode (C05090 = 1), it is
mandatory for the measuring system to be a modulo measuring system.
Identifier/data type
Information/possible settings