Estun E21S, Installation Manual

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Page 32 of 41
Table 6-1
Routine inspection
No. Inspection
item
Standard
content
Standard
specification
Treatment
1 Basic
installation
status of the
system
Check set
screw for
loosening, and
check seal for
drop. Be installed
properly. Fasten
screw.
2 IO port
connection
status
Check IO port
connection for
loosening Correct wiring. Correct
wiring.
3 Connection
status
Check terminal
screw for
loosening Screw is not
loose Fastening
terminal
screw.
4 LED display
status
Check whether
LED display is
correct. LED (green)
indicate system
running, LED
(red) indicate
system stop.
6.3 Periodic inspection
Items which require once or twice inspection every 6 months or 1 year are listed
below. In case of equipment removal or reconstruction, or any changes to wiring,
inspection is also required. Please refer to Table 6-2for inspection content.
Table 6-2
Periodic inspection content
No. Inspection item Standard
content Standard
specificatio
n Treatment
1
Surroun
di
ng e
nvir
onme
nt
Ambient
temperature Measure by
thermometer
and
hygrometer,
and measure
whether
corrosive gas
exists.
0~40
℃
Ambient
humidity 5~95%RH
Air No corrosive
gas
2 Voltage Voltage
among
terminals 24V
DC 20~29V DC Change
power
supply