2 activate evaluation, Activate evaluation, 7encoder evaluation – Lenze E94AxPExxxx User Manual
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7
Encoder evaluation
7.3
Parameter setting
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Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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7.3.10.2
Activate evaluation
serves to activate the evaluation of the encoder signal of input X8.
• When the evaluation is activated, the encoder parameterised in
is read in.
• At the same time, the monitoring functions are active. If no encoder is available, the
corresponding monitoring functions are triggered.
• When the evaluation is deactivated, the outputs of the system block are reset.
• Monitoring is deactivated depending on the position encoder selection (
) and the
motor encoder selection (
).
Monitoring
The monitoring functions depend on the encoder type selected in
and do not differ from the
existing monitoring functions:
• Open circuit of encoder (response:
•
Encoder angular drift monitoring
• Encoder communication error (FDB_bEncoderComError; response:
)
• Sine/cosine encoder error (FDB_bSinCosSignalError)
• Group signal for errors as process date (ENC_bError)
Conditioning of the encoder signal
• The encoder signal is conditioned to a position (including a storage with mains failure
protection) within the application using the FB L_EsEncoderConv:
• Interconnection of the ENC_dnEncoderOut1 output signal with the dnEncoderIn input of the
FB L_EsEncoderConv.
• Interconnection of the ENC_dnEncoderOut2 output signal with the dnEncoderIn2 input of the
FB L_EsEncoderConv.
• Additional parameter setting of the FB L_EsEncoderConv:
Mode selection: Cxxxxx = 1
Number of revolutions transmitted from
• The (optional) reconstruction of the position after mains switching is also made by the
FB L_EsEncoderConv.
• In contrast, the conditioning of the encoder signal to a speed is directly made in the
• The current encoder speed is provided at the ENC_dnActualSpeed_s output in [rpm] (display
parameter:
).
• TouchProbe function is not supported (continues to be only available for motor and position
encoders).
• If the encoder at X8 is simultaneously used as motor or position encoder, the "raw value" of the
encoder is continued to be output.