3.1. Digital Outputs [-EB1]
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
and
.
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
. To see an
example of a current sinking output that has diode suppression, refer to
The digital outputs have overload protection. They will resume normal operation when the overload is
removed.
Table 3-1:
Digital Output Specifications [-EB1]
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)
3.1. Digital Outputs [-EB1]
XC4 Hardware Manual
90
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Содержание Automation1 XC4
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