Preventive Maintenance - Panasonic fp2/fp2sh User Manual

Programmable controller
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Maintenance
9.2

Preventive Maintenance

9.2
Preventive Maintenance
Although the FP2/FP2SH system has been designed in such a way to minimize mainte-
nance and offer troublefree operation, several maintenance aspects should be taken
into consideration.
If preventive maintenance is performed periodically, you will minimize the possibility of
system malfunctions.
Inspection item
Power supply unit
CPU display
p y
Input/output unit
display
Installation condition
Connection condition
Power supply voltage
of power supply unit
Power supply voltage
for input/output
Ambient environment
Backup battery
p
y
9 − 8
Inspection description
Check POWER LED on power
supply unit
Power supply unit
Check RUN LED
Check ERROR LED
Check ALARM LED
Check BATT. LED
Check input/output display LED
Backplane mounting looseness
Looseness and/or play in unit
Looseness of terminal screw
Proximity of connection in pinch
terminal
Connector looseness
Connection condition of expan-
sion cable
Voltage between terminals
Voltage between terminals
Ambient temperature
Ambient humidity
Operating condition
Battery for CPU
Battery for IC memory card
Basis of judgement
Normal if on
Periodic replacement (20,000
hours of operation)
On in RUN state
Normal if off
Normal if off
Normal if off
Normal if "light" during on, and
"not light" during off
Securely mounted
y
No looseness
Pinched parallel
Locked in
Connector section is not loose
FP2−PSA1: 100 to 120V AC
FP2−PSA2: 200 to 240V AC
FP2−PSA3: 100 to 240V AC
FP2−PSD2: 24V DC
Within the specified range of each
unit
0 to 55°C/32 to 131°F
30 to 85% RH
No dust or corrosive gas
Regular replacement
g
p
FP2/FP2SH
Reference
Section 2.7
Section 2.2, 2.4,
,
,
and 8.1
d 8 1
Section 2.8
Section 4.1.1 and
4.1.2
4 1 2
Section 4.1.3,
,
4.2, 4.4 and 4.5
4 2 4 4
d 4 5
Section 4.2.1
Section 2.9
to 2.11
Section 4.1.1
Section 9.1.1

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