SMC Networks ZSE80 Operation Manuals page 47

Fault No. Fault
Analogue output
is not provided.
6 (specified
accuracy is not
satisfied.)
An over current
error (Er1, Er2) is
displayed.
System error
(Er0, Er4, Er6 or
Er7) is displayed.
The display
7
shows "HHH".
The display
shows "LLL".
Residual
pressure error
(Er3) is
displayed.
Possible cause
Check that the analogue output is
Incorrect wiring
connected to a load.
(1) Check that the correct load is
Non-compliance connected.
with the load (2) Check that the impedance of the
specification input equipment (A/D
transformer) is suitable.
Check if the product satisfies the
Insufficient
specified accuracy after 10 minutes
warm-up time
warm up time.
Product failure
(1) Check that the switch output load
current is not more than 80 mA.
(2) Check that the connected load
satisfies the specifications, and
check the load for short circuits.
Over current to the
(3) Check that any relay is
output
connected with a surge voltage
(Er1, Er2)
suppressor.
(4) Check if the wiring is not in the
same route as (or bundled
together with) a high voltage
cable or power cable.
(1) Check that there is no noise
Incorrect operation interference such as static
of the internal data electricity, and check for noise
of the Pressure sources.
switch (2) Check that the power supply
(Er0, Er4, Er6,Er7) voltage is within the range 12 to
24 VDC ±10%.
(1) Check that the pressure is not
Applied pressure is above the upper limit of the set
over the upper limit pressure range.
(HHH). (2) Check that foreign matter has
not entered the piping.
(1) Check that the pressure is not
Applied pressure is below the lower limit of the set
under the lower pressure range.
limit (LLL). (2) Check that foreign matter has
not entered the piping.
Check that during the zero clear
Pressure is not
operation, pressure above
atmospheric
±10%F.S. (from atmospheric
pressure at
pressure to the upper limit of rated
zero-clear
pressure) of atmospheric pressure
operation (Er3)
was not applied.
Product failure
-46-
Investigation method Countermeasure
Correct the wiring.
Connect a suitable load.
After energizing, the display
and output can drift. For
detecting fine pressures, warm
up the product for 10 to 15
minutes.
Replace the product.
(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 and turn it on
again.
(2) Supply a correct voltage of
12 to 24 VDC ±10%.
(1) Adjust the pressure within
the set pressure range.
(2) Take measures to prevent
foreign matter from
entering the piping.
(1) Adjust the pressure 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※※-OMM0003-G