User guide
5 Function blocks
5.139 L_SdSpeedFilter - speed signal delay
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.139 L_SdSpeedFilter - speed signal delay
This FB is used to filter or delay a speed signal according to the PT1 principle. The resulting position
loss is compensated by an internal overflow buffer.
Inputs
Outputs
Function library: LenzeServoDrive
Runtime software licence: Motion Control HighLevel Motion Control TopLevel
Identifier/data type Information/possible settings
dnSpeedIn_s
DINT
Speed selection in [rpm]
• 15000 rpm ≡ 2
26
≡ 67108864
bEnable
BOOL
Activate filter function
FALSE Filter is deactivated.
• Use these settings during the acceleration and deceleration pha-
ses to prevent a drifting of the position.
TRUE Filter is activated.
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
dnSpeedOut_s
DINT
Filtered speed in [rpm]
bLimitActive
BOOL
Status signal "Overflow/underflow"
TRUE An overflow/underflow has occurred.
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