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No signal comes to the
input.
The output does not work.
No voltage and current
signals in input channel.
POWER led is ON, RUN led
is OFF.
RUN led is ON, ALM led is
ON.
CAN expansion module
cannot be connected.
Analog voltage signal is
unstable.
9.
Check whether the wiring is correct.
10. Confirm whether controller sends pulses normally.
1.
Check whether the limit sensor is working normally,
and whether the "input" view can watch the signal
change of the limit sensor.
2.
Check whether the mapping of the limit switch is
correct.
3.
Check whether the limit sensor is connected to the
common terminal of the controller.
1.
Check whether IO power is needed.
2.
Check whether the output number matches the ID of
the IO board.
1.
Check whether the power of the power supply is
sufficient. At this time, it is best to supply power to
the controller alone, and restart the controller after
adjustment.
2.
Check whether the ALM light flickers regularly
(hardware problem).
1.
Program running error, please check ZDevelop error
code, and check application program.
1.
Check the CAN wiring and power supply circuit,
whether the 120 ohm resistor is installed at both
ends.
2.
Check
the
communication speed configuration, etc.
3.
Check the DIP switch to see if there are multiple
expansion modules with the same ID.
4.
Use twisted-pair cables, ground the shielding layer,
and use dual power supplies for severe interference
(the main power supply of the expansion module and
the IO power supply are separately powered)
1.
Check the wiring.
2.
Check whether analog max scale values and voltage
range selection are correct.
3.
When the analog interface is reserved, it is normal for
master-slave
configuration,
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