Keysight U2600A Serie Guia Del Usuario página 44

3 Features and Functions
For the DIO module to read the digital input as logic high, the absolute input
voltage range (regardless of its polarity) across the DI
the range from 10 V to 24 V (see
should be greater than DI
should be greater than DI
absolute potential difference of more than 10 V (up to 24 V) across DI
DI
Do not supply excessive voltage to the digital input bits as it will cause
CAUTION
excessive heating on the resistor and damage the instrument. The maximum
absolute voltage difference is 24 V.
Isolated digital output channels
The common ground connection of isolated digital output is shown in the
Figure
conduct on the power MOSFET (see
indicated by the arrow. When the isolated digital output is switched OFF, the
current will not conduct through the load (see
When the load is of an inductance nature such as relay, coil or motor, the
CAUTION
VDD pin should be connected to an external power source.
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, the DIO module will see a logic high at that bit.
COM
3-3. When the isolated digital output is switched ON, the current will
Figure 3-2). For example, the voltage at DI
by at least 10 V (up to 24 V) or the voltage at DI
COM
by at least 10 V (up to 24 V). As long as there is an
in
Figure 3-3) and the current will flow as
Keysight U2600A Series User's Guide
and DI
in COM
Figure 3-4).
should be in
in
COM
and
in