92
5. Replace the cover of the battery compartment.
6. Press CLR, FUN, MONTR, MONTR or just turn the power to the PC OFF
and then ON again to clear the error message on the Programming Con-
sole.
5-3
Inspections
Daily and periodic inspections are required to keep PCs working in top condition.
PC are constructed out of semiconductor components, which although have an
extremely long life time, can deteriorate under improper environmental condi-
tions. Periodic inspections are thus required to ensure that the required condi-
tions are being kept.
Inspection is recommended at least once every six months to a year, but more
frequent inspections will be necessary in adverse environments.
Take immediate steps to correct the situation if any of the conditions in the follow-
ing table are not met.
No.
Item
Contents
Criteria
Remarks
1
Main power
supply
Check the voltage fluctuations at
the power supply terminals.
The voltage must be within the
allowable voltage fluctuation (see
following table)
Voltage tester
2
Ambient
environment
Measure the temperature inside
the control panel.
Temperature must be 0 to 55
_
C.
Thermometer
e
o
e
Measure the humidity inside the
control panel.
Humidity must be 35% to 85%.
Humidity meter
Check for dirt and dust.
There must be no collection of dirt
and dust.
Visual
3
I/O power
supply
Check the voltage fluctuations at
the I/O terminals.
Voltages must be within
specifications for each Unit.
Voltage tester
4
Installation
Check the mounting of all Units.
The Units must be firmly mounted.
Phillips
screwdriver
Check all cable connections.
The cables must be firmly connected.
Phillips
screwdriver
Check all external wiring screws.
The screws must be firmly tightened.
Visual
Check all external wiring cables.
The cables must not be damaged in
any way.
Visual
5
Consumable
parts
Contact output Relays:
G6B-1174P-FD-US
24 VDC
Electrical life
Resistive loads: 300,000 operations
Inductive loads: 100,000 operations
Mechanical life: 50 million operations
---
Battery: C200H-BAT09
Expected life: 5 yrs at 25
_
C
---
Power supply voltage
Allowable voltage fluctuation
100 to 120 VAC
85 to 132 VAC
200 to 240 VAC
170 to 264 VAC
24 VDC
19.2 to 28.8 VDC
Handling Precautions
•
Always turn off the power supply before replacing a Unit.
•
After replacing a faulty Unit, check the new Unit to make sure that the same
problem does not appear again.
•
When returning a Unit for repairs, provide as many details about the problem
as possible in writing and attach it to the Unit before delivering it to your
OMRON representative. (See inside back cover for regional offices.)
•
To clean bad contacts, use a clean cotton cloth soaked in industrial alcohol and
be sure to remove any threads from the cloth before mounting the Unit.
Voltage Fluctuation
Inspections
Section 5-3
