FSM3 Series
Take the following countermeasures as followings
to prevent damages caused by reverse current.
Separate the power supply for output including the
inductive load, such as the solenoid valve and relay, and
input, such as the ow rate sensor.
If a separate power supply cannot be used, directly install
a surge absorption element for all inductive loads.
Consider that the surge absorption element connected to
the PLC, etc., protects only the individual device.
Connect a surge absorption element to the following
places on the power wiring as shown below as a measure
against disconnections in unspecic areas.
When the devices are connected to a connector,
the output circuit could be damaged by the above
phenomenon if the connector is disconnected while
the power is ON. Turn the power OFF before
connecting or disconnecting the connector.
When using the LCD display, do not press down on
the display section. This may lead to failure.
The case is made of resin. Do not use solvent,
alcohol or detergent in cleaning, since the resin
could absorb it. There is a risk of affecting the resin.
Wipe off dirt with a rag soaked in a diluted neutral
detergent solution and wrung out well.
Input
device
Input
device
Input
device
CAUTION
Vibration could cause the needle to turn and the
flow rate to change.
Needle valve integrated
49
LCD displayBar display
IO
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Internal
structure
Separate
display
Technical
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