Encoders
10-2
FM 351 Positioning Module
C79000-G7076-C351-02
10.1 Incremental Encoders
Connectable Incremental Encoders
Incremental encoders with two pulses electrically offset by 90° with or without zero
markers are supported:
• Encoders with asymmetric output signals with 24 V level
– Cut-off frequency = 50 kHz:
– max. 100 m line length.
• Geber mit symmetrischen Ausgangssignalen mit 5V-Differenzschnittstelle nach
RS 422
– Cut-off frequency = 400 kHz
– At 5 V supply voltage: max. 32 m line length.
– At 24 V supply voltage: max. 100 m line length.
Note
If the encoder (5 V) does not output a zero marker signal and you have activated
the wire-break monitoring, you must connect the zero marker inputs N and N
externally so that these inputs have a different level (for example, N at 5V, N at
chassis).
Signal Shapes
Figure 10-1 illustrates the signal shapes from encoders with asymmetric and and
symmetric output signals.
asymmetric
symmetric
A*
B*
N*
A
B
N
A
B
N
Figure 10-1 Signal Waveforms from Incremental Encoders
To Next Page
Loading...
