IAI America REXT - Manual (Page 403)

Part 3 Maintenance
Chapter 2 Maintenance/Inspection
371
Part 3 Maintenance
2.1 Periodic Inspection Items
The ROBONET may suffer deterioration of electronic parts or exhibit other undesirable conditions depending on the
environment. To prevent these problems, periodic inspection is necessary.
The standard inspection interval is six months to one year. Shorten the interval depending on the surrounding environment.
No. Inspection item Description Judgment criterion Action
1 Supply voltage Measure the voltage at the
power-supply terminal
block to check if the voltage
fluctuation meets the
judgment criterion.
Voltage fluctuation
is within the
specified range of
24 V r 10%.
Change the settings so that the supply
voltage meets the judgment criterion.
2 Surrounding
environment
Ambient temperature
(If a panel is used, the
temperature inside the
panel represents the
ambient temperature.)
0 to 40qC Measure the ambient temperature
using a temperature gauge and adjust
the surrounding environment so that
the measured value falls within the
ambient operating temperature range.
Ambient humidity
(If a panel is used, the
humidity inside the panel
represents the surrounding
humidity.)
95% RH or below,
non-condensing.
Measure the ambient humidity using a
hygrometer and adjust the surrounding
environment so that the measured
value falls within the ambient operating
humidity range.
Free from corrosive
or flammable gases.
Check by smell or using a gas sensor,
etc.
Not exposed to
splashes or mist of
water, oil and
chemicals.
Remove, and shield the ROBONET
from, sources of splashes/mist
Ambience
Free from deposits
of dust particles,
salt, iron powder or
other powder dust.
Remove, and shield the ROBONET
from, sources of powder dust.
Direct exposure to sunlight Not exposed to
direct sunlight.
Shield the ROBONET from direct
sunlight.
Direct transmission of
vibration or impact to the
body
Meeting the
vibration resistance
and impact
resistance
specifications.
Install cushions or other means for
withstanding vibration and impact.
Nearby noise sources Absence of noise
sources nearby.
Move noise sources away from the
ROBONET or shield the ROBONET
from noise sources.
3 Installation
condition
Installation condition of
each unit on the DIN rail
No loosening of unit
mounting parts.
Install the unit again and lock it firmly.
4 Connection
condition
Firm connection of each
power-supply connection
plate between units
Connection plate
screws are
tightened firmly.
Retighten the screws to eliminate any
looseness.
Firm insertion of each
communication connection
board between units
Inserted completely. Insert the board again.
Firm insertion of the
connection board between
the simple absolute R unit
and controller unit
Inserted completely. Insert the board again.
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