Dout Connector (Digital Outputs); Table 2-30: Digital Output Specifications - Aerotech XR3 Hardware Manual

Chapter 2: Installation and Configuration
2.7. DOUT Connector (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 port in the same configuration.
Refer to Figure 2-32 and
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
current sinking output that has diode suppression, refer to
The digital outputs are not designed for high-voltage isolation applications and they should only be used with
ground-referenced circuits.
NOTE: The digital outputs have overload protection. They will resume normal operation when the overload
is removed.
Table 2-30: Digital Output Specifications
Digital Output Specifications
Maximum Voltage
Maximum Sink/Source Current
Output Saturation Voltage
Output Resistance
Rise / Fall Time
Reset State
62
Figure 2-33.
XR3 Hardware Manual
Figure 2-32. To see an example of a
Figure 2-33
24 V (26 V Maximum)
250 mA/output
0.9 V at maximum current
250 µs (2K pull up to 24V)
Output Off (High Impedance State)
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Value
3.7 Ω