Lenze E94A - Manual (Page 298)

5 Function blocks
5.81 L_EsEncoderConv - encoder signal conditioning
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.81 L_EsEncoderConv - encoder signal conditioning
This FB converts an actual position that is imported via a bus system, like for example system bus
(CAN), Profibus, or ETHERNET Powerlink, by an external encoder, by means of the machine parame-
ters transferred and the encoder resolution parameterised into a position in [increments] and pro-
vides it for further processing within the function block interconnection at the output dnPosOut_p .
• Via the input bLoadStartPos the position output can be set to the starting position pending at
the input dnStartPos_p.
• The position that is output can be initialised/adjusted to the input value of an absolute value
encoder via the bLoadEncoderPos input.
• In addition to the position, the resulting speed is shown at the output dnSpeedOut_s.
• The FB can process absolute value encoders and incremental encoders (single and multiturn en-
coders).
Inputs
Function library: LenzeElectricalShaft
Runtime software licence:  Motion Control HighLevel  Motion Control TopLevel
Identifier/data type Information/possible settings
dnEncoderIn
DINT
External encoder signal (encoder counter)
• As soon as the input value at the bus is changed, a valid encoder signal is recog-
nised.
• Display parameter: C05280
dnEncoderIn2
DINT
From library V01.03.xx.xx
2nd external encoder signal
• This input is only evaluated if "1: 64 bit encoder signal" has been selected in
C05271.
• Display parameter: C05284
 64 bit encoder signal evaluation ( 302)
bLoadStartPos
BOOL
Load integrator with starting position and reset error output.
TRUE Load the integrator with the value applied to input dnStartPos_p and
reset bError to FALSE.
dnStartPos_p
DINT
Starting position in [inc] with which the integrator is loaded by setting
bLoadStartPos to TRUE.
• C05281 indicates the starting position in the real unit of the machine.
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