User guide

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05 537
5 Function blocks
5.144 L_SdUnitToAcc - acceleration conversion
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
5.144 L_SdUnitToAcc - acceleration conversion
This FB uses the transmitted machine parameters and converts an acceleration value defined in the
real unit of the machine into an internal acceleration value.
Inputs
Outputs
Parameter
Function library: LenzeServoDrive
Runtime software licence:  Motion Control HighLevel  Motion Control TopLevel
Identifier/data type Information/possible settings
dnAccIn_e4
DINT
Acceleration in [unit/s
2
]
• Selection in "e4" format (fixed point with four decimal positions)
AxisData Machine parameters
• For accepting the machine parameters of the drive/motor, connect this input
with the output DI_AxisData of the SB LS_DriveInterface.
• The machine parameters of a master drive can be displayed with the
FB L_SdSetAxisData
. In this case, the FB output AxisData must be connected to
this input. ( 510)
Identifier/data type Value/meaning
dnAccOut_x
DINT
Acceleration as speed variation/time in [rpm/s]
• 15000000 rpm/s ≡ 2
22
≡ 4194304
bLimit
BOOL
Status "Output signal is limited"
TRUE The output signal is limited to the value range that can be displayed.
Parameter Possible settings Information
C04318 String from AxisData Acceleration unit
•Read only
GQ$FF2XWB[GQ$FF,QBH
$[LV'DWD
>XQLW@>USPV@
/B6G8QLW7R$FF
E/LPLW
& 8QLW