FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
273
14 Test Operation, Adjustment, Maintenance and Troubleshooting
14.4 Maintenance and Periodic Inspection
11
Hi
gh
-Speed
Counters
12
O
utput W
iri
ng
13
W
iri
ng for
V
ari
ous
Us
es
14
Te
st R
un,
Mai
nten
ance,
T
roubl
es
hooti
ng
15
IInput/Output
Pow
ered
Exte
nsi
on U
nit
s
16
Input/O
utput
Extens
ion
Bl
ock
s
17
Extension
Power Suppl
y
Un
it
18
Other Extens
ion
Uni
ts an
d
Opti
ons
19
D
isplay M
od
ule
20
Te
rminal
Bl
oc
k
14.4
Maintenance and Periodic Inspection
This PLC does not incorporate consumable parts that are factors in the reduction of service life.
However, the batteries and output relays (points of contact) have a limited life expectancy.
14.4.1 Procedures for checking model name
The model name of the main unit can be checked on the nameplate on the right side. After extension devices
are connected, the nameplate cannot be seen. Check the model name in the following places.
14.4.2 Periodic inspection - battery life, etc.
1. Battery
Standard life of FX
3U
-32BL: 5 years (at ambient temperature of 25
°
C (77
°
F))
→
For frequency of replacement, refer to Subsection 22.3.1.
2. Other devices
When inspecting the battery, check the following points.
• Check that the temperature in the panel is not abnormally increased by other heat generating bodies or
direct sunlight.
• Check that dust or conductive dust has not entered the panel.
• Check for loosening of wiring and other abnormalities.
Part
Life
Model FX
3U
-32BL battery
Standard life: 5 years (at ambient temperature of 25
°
C (77
°
F))
When the terminal block cover (output side)
is opened
When the top cover is removed
Model name
(abbreviation)
Model name
Output form R: Relay output
T: Transistor output
S: Triac output
Summary of Contents for FX2-16E series
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Page 8: ... 6 Safety Precautions Read these precautions before use MEMO ...
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