Omron TJ1/GRT1 Hardware Reference Manual page 9

Safety warnings and precautions
Caution
Always turn off the power supply to the system before attempting
any of the following.
Not turning off the power supply may result in malfunction or elec-
tric shock.
- Mounting or dismounting expansion Units, CPU Units, or any
other Units.
- Assembling the Units.
- Setting dipswitches or rotary switches.
- Connecting or wiring the cables.
- Connecting or disconnecting the connectors.
Caution
Be sure that all mounting screws, terminal screws, and cable con-
nector screws are tightened to the torque specified in this manual.
Incorrect tightening torque may result in malfunction.
Caution
Leave the dust protective label attached to the Unit when wiring.
Removing the dust protective label may result in malfunction.
Caution
Remove the dust protective label after the completion of wiring to
ensure proper heat dissipation.
Leaving the dust protective label attached may result in malfunc-
tion.
Caution
Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals.
Connection of bare stranded wires may result in burning.
HARDWARE REFERENCE MANUAL
Caution
Double-check all the wiring before turning on the power supply.
Incorrect wiring may result in burning.
Caution
Wire correctly.
Incorrect wiring may result in burning.
Caution
Mount the Unit only after checking the terminal block completely.
Caution
Be sure that the terminal blocks, expansion cables, and other
items with locking devices are properly locked into place.
Improper locking may result in malfunction.
Caution
Confirm that no adverse effect will occur in the system before
changing the operating mode of the system.
Not doing so may result in an unexpected operation.
Caution
Resume operation only after transferring to the new CPU Unit the
contents of the VR and table memory required for operation.
Not doing so may result in an unexpected operation.
Caution
When replacing parts, be sure to confirm that the rating of a new
part is correct.
Not doing so may result in malfunction or burning.
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