An over current
error (Er1, 2) is
displayed.
System error
(Er0, 4, 6, 7, 8 or
9) is displayed.
“HHH” is
displayed.
“LLL” is
displayed.
Residual
pressure error
(Er3) is
displayed.
Over current to the
output (Er1 and 2)
(1) Check if the output current is 80
mA or more.
(2) Check if the specified load is
connected.
(3) Check if a relay without a surge
voltage suppressor is connected.
(4) Check if the wiring is in the same
route as (or bundled together with) a
high-voltage or power line.
(1)，(2) Connect the
appropriate load.
(3) Use a relay with a surge
voltage suppressor or
take measures to
prevent noise.
(4) Separate the wiring from
the high-voltage and/or
power line.
Incorrect internal
data processing of
the product (Er0,
4, 6, 7, 8 or 9)
(1) Check if there is noise interference
(such as static electricity.
(2) Check if the power supply voltage
is in the range 24 VDC ±10%.
(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 24 VDC ±10%.
Applied pressure
is over the upper
limit (HHH).
(1) Check that the pressure is not
above the upper limit of the set
pressure range.
(2) Check that foreign matter has not
entered the piping.
(1) Reset applied pressure
to a level within the set
pressure range.
(2) Take measures to prevent
foreign matter from
getting into the piping.
Applied pressure
is under the lower
limit (LLL).
(1) Check that the pressure is not
below the lower limit of the set
pressure range.
(2) Check that foreign matter has not
entered the piping.
(1) Bring the pressure back
within the set pressure
range.
(2) Take measures to prevent
foreign matter from
entering the piping.
Pressure is not
atmospheric
pressure at
zero-clear
operation (Er3).
Check that a pressure above
±3.5%F.S. was not applied, during
zero-clear operation.
Return the applied pressure
to atmospheric pressure,
and retry the zero clear
operation.
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