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Problem
Phenomenon
No.
•Over current
error (Er1, 2) is
displayed
•System error
(Er0, 4, 6, 8) is
displayed
•"HHH" is
6
displayed
•"LLL" is
displayed
•An output
detection
range error
(Er3) is
displayed
Problem
Possible causes
(1) Check if an over current of 80 mA
or more is flowing to the output.
(2) Check if the connected load
complies with the specification.
Over current is
Check if the load is short circuited.
flowing to the
(3) Check if the relay without surge
output (Er1, 2)
protection is connected.
(4) Check if the wiring is in the same
route as (or bundled together
with) a high-voltage or power line.
(1) Check if there is noise
interference (such as static
Data inside the
electricity).
product was not
Check if there is a noise source
processed
nearby.
normally (Er0, 4,
(2) Check that the power supply
6, and 8)
voltage is within the range 12
to 24 VDC ±10%.
(1) Check that the actuator is
The analogue
applicable.
value exceeded
(2) Check that an analogue ASW
the upper limit of
sensor is connected.
the displayable
(3) Check to see if a ferromagnetic
value (HHH).
field source is present in the
surroundings.
(1) Check that the actuator is
applicable.
(2) Check that an analogue ASW
The analogue
sensor is connected.
value exceeded
(3) Check to see if a ferromagnetic
the lower limit of
field source is present in the
the displayable
surroundings.
value (LLL).
(4) Check for any broken sensor
cable and the connection
condition of the connector section.
(1) Confirm that the operating range
Output
for each of SP1 to SP3 is within
detection
the displayable range.
range error
(2) Check if the operating range of
(Er3)
each of SP1 to SP3 is overlapping
in 3 setting mode.
Product failure
-68-
Investigation method
Countermeasures
(1)(2) Connect the
appropriate load.
(3) Use a relay with surge
protection or take
measures to prevent
surge.
(4) Separate the wiring route
from the high-voltage
and/or power line.
(1) Remove the noise and
the noise source (or take
measures to prevent
noise interference) and
reset the product or turn
off and then turn back on
the power supply.
(2) Supply power in the range
12 to 24 VDC ±10%.
(1) Use an applicable
actuator.
(2) Use the specified
sensor.
(3) Cannot be used in a
welding environment or
another environment in
which a ferromagnetic
field is generated.
(1) Use an applicable
actuator.
(2) Use the specified
sensor.
(3) Cannot be used in a
welding environment or
another environment in
which a ferromagnetic
field is generated.
(4) Modify the wiring;
connect the connector
again; replace the
analogue ASW.
Set the output point again.
Set a smaller ON width and
hysteresis.
Replace the product.
No.D-※S-OMA1021
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