Lenze E94AxPExxxx - Manual (Page 303)

Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
303
7 Encoder evaluation
7.3 Parameter setting
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7.3.10 Provision of the encoder signal of input X8
The LS_EncoderX8 system block serves to provide the encoder signal of input X8 to the application,
independent of the selected feedback system for the motor encoder and position encoder.
Application cases:
• High-resolution speed encoder as master encoder /value, correcting signal, ...
• Absolute value encoder for length measurements
• Display of the absolute encoder value without considering an offset
7.3.10.1 System block "LS_EncoderX8"
Outputs

Note!
For SSL encoders, the LS_SsiEncoderX8 system block must be used.  Use of an SSI
encoder at X8 ( 295)
Identifier
DIS code | data type
Value/meaning
ENC_dnEncoderOut1
C02762 |DINT
Display of the current encoder position (steps) within one revolution
• 1 revolution ≡ 2 32 bits
Note:
In order to convert the encoder information/position into a position_p in the
internal measuring system, connect both outputs ENC_dnEncoderOut1 and
ENC_dnEncoderOut2 with the inputs dnEncoderIn and dnEncoderIn2 of the
FB L_EsEncoderConv. A storage with mains failure protection of the position signal
is also processed via this FB.
ENC_dnEncoderOut2
C02763 |DINT
Display of all revolutions of the encoder (only with Multiturn)
• After the max. presentable revolutions have been reached, the value jumps back
to "0".
• C02761 shows the max. presentable revolutions of the MultiTurn encoder
(encoder-dependent).
• In case of SingleTurn, the value "0" is always output.
ENC_dnActualSpeed_s
C02764 | DINT
Current encoder speed in [rpm]
ENC_bError
C02765 | BOOL
Status signal "Encoder error"
TRUE An encoder error has occurred.
LS_EncoderX8
ENC_dnEncoderOut1
ENC_dnActualSpeed_s
ENC_bError
R G E
ENC_dnEncoderOut2