[SM-P00081-A]
―25―
5
MAINTENANCE
5.4 Maintenance of components
This section describes the cleaning and inspection of the slave unit for daily maintenance and what to
do when replacing the slave unit.
1) Cleaning
In order to use the product under optimum conditions, clean and inspect the product periodically.
(1) For daily cleaning, wipe the product with a soft dry cloth.
(2) When stains cannot be removed by wiping with a dry cloth, soak the cloth with diluted neutral
detergent (2%), wring it out well, and wipe off the stains.
(3) Objects such as rubber, vinyl, or tape may stain the slave unit if they are left in contact with the
unit for a long period. Remove such objects when cleaning if they are leaving stain on the
product.
2) Inspections
Always conduct periodic inspections to ensure use in the optimum state.
Perform inspection once or twice a year.
If using the product in an environment where temperature or humidity is extremely high or in a dusty
environment, perform inspections at a shorter interval.
■ Inspection item
Inspect the following items to make sure that each item satisfies the criteria.
If any item does not meet the criteria, improve the surrounding environment or adjust the unit.
Inspection item Description Criteria Inspection method
Environment
Is the surrounding and in-panel
temperature appropriate?
Refer to 8 pages " Slave
unit specifications ".
Thermometer
Is the surrounding and in-panel
humidity appropriate?
Refer to 8 pages " Slave
unit specifications ".
Hygrometer
Is there any dust on the unit? No dust Visual inspection
Installation
Is the slave unit fixed securely? No looseness Philips screwdriver
Is the power cable connector fully
inserted?
No looseness Flat blade screwdriver
Is the network cable connector fully
inserted?
No looseness Visual inspection
Is the connection cable not broken?
No abnormality in
appearance
Visual inspection
3) Checking the slave unit before/after replacing
Each unit (master and slave) is a device that constitutes a part of a network.
If any unit fails, immediately perform recovery work to prevent the entire network from being affected.
To restore the network function as fast as possible, it is recommended to prepare spare units.
■ Inspection item
If a fault is detected and the unit is replaced with a new one, check if the new unit has no
abnormality. Also, confirm the slave unit settings.
■Settings for replacement slave unit
For the switches on the replacement slave unit, confirm the specifications and set the same
settings as the previous slave unit.
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