Aerotech Automation1 XI4-4P1, Руководство по оборудованию

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2.3.1. Digital Outputs
Optically-isolated solid-state relays drive the digital outputs. You can connect the digital outputs in
current sourcing or current sinking mode but you must connect all four outputs in a group in the
same configuration. Refer to
Figure 2-22 and Figure 2-23 .
The digital outputs are not designed for high-voltage isolation applications and they should only be
used with ground-referenced circuits.
You must install suppression diodes on digital outputs that drive relays or other inductive devices. To
see an example of a current sourcing output that has diode suppression, refer to
Figure 2-22 . To see
an example of a current sinking output that has diode suppression, refer to Figure 2-23 .
The digital outputs have overload protection. They will resume normal operation when the overload
is removed.
Table 2-24: Digital Output Specifications
Digital Output Specifications Value
Maximum Voltage 24 V (26 V Maximum)
Maximum Sink/Source Current 250 mA/output
Output Saturation Voltage 0.9 V at maximum current
Output Resistance 3.7 Ω
Rise / Fall Time 250 µs (2K pull up to 24V)
Reset State Output Off (High Impedance State)
Table 2-25: Digital Output Pins on Digital I/O Connector
Pin # Description In/Out/Bi
14 Output Common for Digital Outputs 0-3 Output
1 Opto-Isolated Digital Output 0 Output
15 Opto-Isolated Digital Output 1 Output
2 Opto-Isolated Digital Output 2 Output
16 Opto-Isolated Digital Output 3 Output
3 Output Common for Digital Outputs 4-7 Output
17 Opto-Isolated Digital Output 4 Output
4 Opto-Isolated Digital Output 5 Output
18 Opto-Isolated Digital Output 6 Output
5 Opto-Isolated Digital Output 7 Output
iXI4/XI4 Hardware Manual 2.3.1. Digital Outputs
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