Precautions For Safe Use - Omron CK3M Series User Manual

Precautions for Safe Use

Transporting
• Do not drop any Unit or subject it to abnormal vibration or shock. Doing so may result in Unit mal-
function or burning.
Mounting
• Be sure that the terminal blocks, connectors, and other items with locking devices are correctly
locked into place before use.
• When connecting the Power Supply Unit, CPU Unit, and CK3W Unit, connect the Units together,
then slide the sliders on the top and bottom until they click into place, and lock securely.
• Always mount an end cover for use. Note that if an end cover is not mounted, the Unit may not func-
tion satisfactorily.
• The number of CK3W Units connected to the CPU Unit must be within the specified range.
Installation
• Always connect to a ground of 100 Ω or less when installing the Units.
• For DIN Track installation, correctly follow the instructions in this manual.
Wiring
• Follow the instructions in this manual to correctly perform terminal block and connector wiring and
insertion.
Double-check all wiring and connector insertion before turning ON the power supply.
• If the external power supply to a digital output or a slave has polarity, connect it with the correct po-
larity.
If the polarity is reversed, current may flow in the reverse direction and damage the connected devi-
ces regardless of the operation of the Controller.
• Before you connect a computer to the Controller, disconnect the power supply plug of the computer
from the AC outlet.
Also, if the computer has an FG terminal, connect it such that the FG terminal has the same electri-
cal potential as the FG on the product.
A difference in electrical potential between the computer and the Controller may cause a failure or
malfunction.
• Do not pull on the cables or bend the cables beyond their natural limit.
• Do not place heavy objects on top of the cables or other wiring lines. Doing so may break the ca-
bles.
• Always use power supply wires with sufficient wire diameters to prevent voltage drop and burning.
Make sure that the current capacity of the wire is sufficient. Otherwise, excessive heat may be gen-
erated.
CK3M-series Programmable Multi-Axis Controller User's Manual Hardware (O036)
Precautions for Safe Use
17