Omron SYSMAC CS1G Operation Manual page 638

Routine Inspection
No. Item
3 Installation Is the MC Unit securely mounted? There must be no
and wiring
Are the cable connectors properly
inserted and locked?
Are there any loose screws in the
external wiring?
Are any crimp terminals for exter-
nal wiring too close together?
Are any external cables about to
break?
Required Tools
12-1-2 Handling Precautions
12-1-3 Procedure for replacing an MC Unit
1,2,3...
Inspection points
Required tools
• Phillips screwdriver
• Voltage tester or digital voltage meter
• Industrial alcohol ad clean cotton cloth
Equipment that may be required depending on the case
• Oscilloscope
• Synchroscope
• Thermometer, hydrometer
• Turn OFF the power before replacing the Unit.
• If a Unit is found to be faulty and is replaced, check the new Unit again to
ensure there are no errors.
• When returning a faulty Unit for repair, make a detailed record of the
Unit's malfunction and take it together with the Unit to your nearest
OMRON office or sales representative.
• If a contact is not good, put some industrial alcohol on a clean cotton cloth
and wipe the surface. After doing this, install the Unit.
• Before restarting operation, transfer the required programs, position data,
and system parameters to the MC Unit that was changed, and save them
to the flash memory.
Follow the procedure below when it is necessary to replace an MC Unit.
1. Make a note of the unit number of the MC Unit to be replaced.
2. To retain the status and settings of the MC Unit that is to be replaced, ex-
ecute the backup operation of the CPU Unit to save the MC Unit's data,
parameters, or programs into a memory card. For the operation procedure,
refer to the User Manual for the CPU Unit 'Programming' ( SBCA-313 ) .
3. Turn OFF the power supply.
4. To facilitate rewiring, carefully label the cables that are to be disconnected.
5. Replace the MC Unit, and reconnect the wiring as before.
6. Set the unit number for the MC Unit.
7. Turn ON the power supply to the PLC.
8. Read the data, parameters, or programs that are saved in the memory card
to the MC Unit through the CPU Unit's backup operation.
Criteria
With a Phillips screwdriver, tighten all
looseness. mounting screws.
Carefully insert and lock all cable con-
nectors.
With a Phillips screwdriver, tighten all
screws in the external wiring.
There must be suffi- Do a visual check and separate the ter-
cient space between minals as required.
them.
There must be no Do a visual check, and connect or
external abnormali- replace cables as required.
ties.
Section 12-1
Remarks
615