Omron CS1W-LC001 Operation Manual page 19

Application Precautions
voltage. Excess voltages may result in burning.
Do no apply voltages or connect loads in excess of the maximum
switching capacity to output sections. Excess voltage or leads may result
in burning.
Turn OFF the power to the PC before performing the following operations:
Mounting or removing the Loop Control Unit, CPU Unit, or the Memory
Pack
Assembling Racks
Setting the DIP switch or unit number setting switch
Performing wiring or connecting cables
When connecting or disconnecting cables
Do not attempt to disassemble, repair, or modify any Units.
Be sure to confirm that the DIP switch and the Data Memory (D) are
properly set.
Leave the dust-protection label attached to the top Unit when wiring.
Removing the label may result in malfunction.
Remove the labels after the completion of wiring to ensure proper heat
dissipation. Leaving the label attached may result in malfunction.
Mount the Unit only after checking the terminal block and switch settings
completely.
Be sure that all mounting screws, terminal screws, and cable connector
screws are tightened to the torque specified in the user manuals.
Incorrect tightening torque may result in malfunction.
Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected
operation.
Use crimp terminals for wiring. Do not connect stranded wires directly to
terminals. Connection of bare stranded wires may result in burning.
Double-check all the wiring before turning ON the power supply. Incorrect
wiring may result in burning.
Confirm that no adverse effect will occur in the system before attempting
any of the following:
Changing the operating mode of the PC
Force-setting/force-resetting of any contact in memory
Changing the present value or any set value in memory
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