Rockwell-automation 1394 SERCOS Interface Multi-Axis Motion Control Sy Manual de usuario Pagina 48

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Publication 1394-IN002B-EN-P — February 2004
2-16 1394 SERCOS Interface Connector Data
Figure 2.9
Enable, Home, and Overtravel Digital Input Circuits
Figure 2.10
Registration Digital Input Circuits
The following table provides a description of the digital input
specifications, as shown in figures 2.9 and 2.10.
3k
1000 pF
511
IO_COM
VCC
CTRL_INPUT
1k
1394 System Module
Customer-Supplied Input
24V dc
Discrete
Input Pins
1, 2, 5, 6
Discrete
Input Pin 7
I/O Supply
Input
3k
1000 pF
511
VCC
CTRL_INPUT
IO_COM
+24V dc
1k
Customer-Supplied Registration
1394 System Module
Discrete
Input Pins
4 and 8
Discrete
Input Pin 3
I/O Supply
Input
Parameter Description Minimum Maximum
ON State Voltage
Voltage applied to the input, with respect to
IOCOM, to guarantee an ON state.
17.5V dc 38V dc
ON State Current Current flow to guarantee an ON State 5.0 mA 15.0 mA
OFF State Voltage
Voltage applied to the input, with respect to
IOCOM, to guarantee an OFF state.
—6.9V dc
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