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Whether the vibration or
shock occur
Within the specified
range
Install cushioning or shock
absorbing equipment if necessary
No significant noise
sources
Far away from the noise sources or
take anti-interference measures
Check for accumulation of
dirt, dust, salt, or metal
powder.
Clean and protect the unit
Check if the modules are
fully inserted and
connected
Properly inserted and make sure
that no gap between modules
Check if the cable
connectors are fully
inserted and locked
Fully insert and lock all cables
securely
Check if crimp terminals
are loosened
Fully insert the terminal block until
you cannot pull
Check if the external
wiring cables are
damaged
Replace the cables if necessary
Components with
the service
life-span
5 years at 25℃, but
also determined by
models and ambient
temperature.Generaly
between 0.75 and 5
years.
Even if there is no abnormality for
the battery, it is recommended to
replace the battery when it reaches
the specified service life.
Tools required for inspections
Appropriate screwdrier
Indistrical alcohol and clean cotton cloth
Multimeter
Oscilloscope
Thermometer and hygrometer
5-3-2 Requirements for replacing units
Please follow the precautions when you find the module faulty and needs to be replaced.
Replace the unit after cut off the power supply
Before replacement, make sure that the new module can work normally.
For poor contact, clean the module with a clean cotton cloth dipped in industril alcohol and insert the
module and press it tightly.
If CPU unit has been replaced, set the user program and variables for restart operation (holding variables
at power-failure, and then restart the unit.
The routing tables, network parameters, and system Settings for the CPU bus unit have been saved to the
CPU unit. If the CPU unit is changed, you need to reset the above data.
If the slave module is replaced, it is necessary to refer to the corresponding manual and modify the
necessary Settings.
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