Lenze 8400 TopLine - Manual (Page 372)

6 Encoder/feedback system
6.7 Monitoring
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Lenze · 8400 TopLine · Reference manual · DMS 6.0 EN · 06/2014 · TD05/TD14
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6.7.4 Encoder value monitoring
For detecting invalid encoder values, a value range can be defined via the parameter C01112/2 and
C01112/3 . When the encoder signal leaves the set value range, the bFail status signal of the
SB LS_MultiEncoder is set to TRUE and the corresponding information is displayed bit-coded in
C00451/1 .
• Example 1: SSI laser distance meter
The bFail status signal can be used to detect an interruption of the laser beam or a dirty mirror.
• Example 2: SSI bar code scanner
In an application, an SSI bar code scanner is used to detect the workpiece ID and the workpiece
position. A setting of sensible limit values serves to use the bFail status signal to determine
whether the ID or the position of the SSI bar code scanner has been detected.