Omron TJ2-MC02 Hardware Reference Manual page 9

Safety warnings and precautions
Caution
Do not apply voltage to the Input Units in excess of the rated input
voltage.
Excess voltage may result in burning.
Caution
Do not apply voltage or connect loads to the Output Units in
excess of the maximum switching capacity.
Excess voltage or loads may result in burning.
Caution
Disconnect the functional ground terminal when performing with-
stand voltage tests.
Not disconnecting the functional ground terminal may result in
burning.
Caution
Always connect to a class-3 ground (to 100Ω or less) when install-
ing the Units.
Not connecting to a class-3 ground may result in electric shock.
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
electric 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.
HARDWARE REFERENCE MANUAL
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
malfunction.
Caution
Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals.
Connection of bare stranded wires may result in burning.
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.
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