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Problem
Problem
No.
•An over current
error (Er1, Er2)
is displayed.
•System error
(Er0, Er4, Er6,
Er7, Er8 or Er9)
is displayed.
•Copy error
(Er13) is
7
displayed.
•The display
shows "HHH".
•The display
shows "LLL".
•Residual
pressure error
(Er3) is
displayed.
Problem possible
causes
(1) Check that the switch output load
current is not more than 80 mA.
(2) Check that the connected load
satisfies the specifications, and
Over current to
check the load for short circuits.
the output
(3) Check that any relay is connected
(Er1 and 2)
with a surge voltage suppressor.
(4) Check if the wiring is not in the
same route as (or bundled
together with) a high voltage
cable or power cable.
Incorrect
(1) Check that there is no noise
operation of the
interference such as static
internal data of
electricity, and check for noise
the Pressure
sources.
switch
(2) Check that the power supply
(Er0, Er4, Er6,
voltage is within the range 12 to
Er7, Er8, Er9)
24 VDC ±10%.
Copy function
has been
Refer to Trouble No.18.
operated
incorrectly (Er13)
(1) Check that the pressure is not
Applied pressure
above the upper limit of the set
is above the
pressure range.
upper limit (HHH)
(2) Check that foreign matter has not
entered the piping.
(1) Check that the pressure is not
Applied pressure
below the lower limit of the set
is below the
pressure range.
lower limit (LLL)
(2) Check that foreign matter has not
entered the piping.
Pressure is not
Check that during the zero clear
atmospheric
operation, pressure above ±7% F.S.
pressure at
(±3.5%F.S. for compound pressure)
zero-clear
was not applied.
operation (Er3)
Product failure
-78-
Investigation method
Countermeasures
(1), (2) Connect the load as
specified.
(3) Use a relay with a surge
voltage suppressor or
take measures to prevent
noise.
(4) Separate the wiring route
from any high voltage
cable or power cable.
(1) Remove the noise and
the noise source (or take
measures to prevent
noise interference), and
reset the product or turn
off the power supply.
Then, supply the power
again.
(2) Supply a correct voltage
of 12 to 24 VDC ±10%.
(1) Adjust the pressure to
within the set pressure
range.
(2) Take measures to
prevent foreign matter
from entering the piping.
(1) Adjust the pressure to
within the set pressure
range.
(2) Take measures to
prevent foreign matter
from entering the piping.
Return the applied pressure
to atmospheric pressure,
and retry the zero clear
operation.
Replace the product.
No.PS※※-OMU0006-F
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