Справочник Пользователя для Mitsubishi Electronics A173UHCPU
5. INSPECTION AND MAINTENANCE
5
−
4
5.3 Scheduled Inspections
The inspections listed in the table below should be conducted once or twice every
6 to 12 months. They should also be conducted after equipment is moved or
upgraded, and if the wiring is changed.
6 to 12 months. They should also be conducted after equipment is moved or
upgraded, and if the wiring is changed.
Table 5.3 Scheduled Inspections
No.
Item
Description
Evaluation Standard
Remedy
Ambient
temperature
0 C to 55 C
Ambient
humidity
10% to 90% RH
1
Ambient
environment
Atmosphere
Measure temperature and
humidity.
Measure corrosive gases.
No corrosive gases
If system is in an
enclosure,
measure
temperature and
humidity inside the
enclosure.
85 VAC to 264 VAC
2
Supply voltage
Measure voltage across 100
VAC/200 VAC terminals.
Change power
supply
Looseness
Move units and check
Firmly installed
Tighten screws.
3
Installation
Dirt, foreign
matter
Visual
No dirt or foreign matter
Clean
Loose terminal
screws
Turn with a screwdriver
No loose screws
Tighten loose
screws
Spacing
between
solderless
terminals
Visual
Correct spacing is maintained
Adjust spacing
4
Connections
Loose
connectors
Visual
Connectors fully tightened
Tighten connector
screws
5
Battery
In monitor mode, check from
peripheral device that M9006
and M9007 are OFF.
(Preventative maintenance)
Replace battery if
life is exceeded,
even if no voltage
drop occurs.
Refer to Section
5.3.1.