Unit Replacement Precautions - Omron CP1L Operation Manual

Inspections
No. Item
4 Installation and
wiring
5 User-service-
able parts
Tools Required for Inspections

11-1-2 Unit Replacement Precautions

Inspection
Check that each Unit is con-
nected securely and locked in
place.
Check that the Option Boards
and cable connectors are fully
inserted and locked.
Check for loose screws in
external wiring.
Check crimp connectors in
external wiring.
Check for damaged external
wiring cables.
Check whether the battery
has reached its service life.
CJ1W-BAT01 Battery
Note The following table shows the allowable voltage fluctuation ranges for source
power supplies.
CPU Unit
CP1L-M@@D@-A
CP1L-L@@D@-A
CP1L-M@@D@-D
CP1L-L@@D@-D
Required Tools
• Phillips screwdrivers
• Voltage tester or digital voltmeter
• Industrial alcohol and clean cotton cloth
Tools Required Occasionally
• Synchroscope
• Oscilloscope with pen plotter
• Thermometer and hygrometer
Check the following when replacing any faulty Unit.
• Do not replace a Unit until the power is turned OFF.
• Check the new Unit to make sure that there are no errors.
• If a faulty Unit is being returned for repair, describe the problem in as
much detail as possible, enclose this description with the Unit, and return
the Unit to your OMRON representative.
• For poor contact, take a clean cotton cloth, soak the cloth in industrial
alcohol, and carefully wipe the contacts clean. Be sure to remove any lint
prior to remounting the Unit.
Note When replacing a CPU Unit, be sure that not only the user program but also
all other data required for operation is transferred to or set in the new CPU
Unit before starting operation, including DM Area and HR Area settings. If
Criteria
No looseness
No looseness
No looseness
Adequate spacing between
connectors
No damage
Service life expectancy is 5
years at 25°C, less at
higher temperatures.
(From 0.75 to 5 years
depending on model,
power supply rate, and
ambient temperature.)
Supply voltage
100 to 240 V AC
24 V DC
Section 11-1
Action
Press the connectors together
completely and lock them with the
sliders.
Correct any improperly installed
connectors.
Tighten loose screws with a Phillips
screwdriver.
Check visually and adjust if neces-
sary.
Check visually and replace cables if
necessary.
Replace the battery when its ser-
vice life has passed even if a bat-
tery error has not occurred.
Allowable voltage range
85 to 264 V AC
(+10%/−15%)
20.4 to 26.4 V DC
(+10%/−15%)
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