Precautions for Safe Use
12
CK3E-series Programmable Multi-Axis Controller Hardware User’s Manual (I610)
Precautions for Safe Use
• Do not drop the Controller or expose it to abnormal vibration or shock. Doing so may result in the
Controller malfunctioning or burning.
• Be sure that the connectors and other items with locking devices are correctly locked into place.
• Always connect to a ground of 100
Ω
or less when installing the Controller.
• Follow the instructions in this manual to correctly perform connector wiring and insertion. Dou-
ble-check all wiring and connector insertion before turning ON the power supply.
• If the external power supply to a slave has polarity, connect it with the correct polarity. If the polarity is
reversed, current may flow in the reverse direction and damage the connected devices 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, make the connections so that the FG
terminal has the same electrical potential as the FG on the product. A difference in electrical potential
between the computer and Controller may cause a failure or malfunction.
• Do not pull on the cables or bend the cables beyond their natural limit.
• Do not place any objects on top of the cables or other wiring lines. Doing so may cause the cables to
break.
• 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 gener-
ated. When cross-wiring terminals, the total current for all the terminals will flow in the wire. When
wiring cross-overs, make sure that the current capacity of each of the wires is not exceeded.
• In the system, only use the power supply within the rated supply capacity range specified in this man-
ual.
• It takes approximately several tens of seconds to enter RUN mode after the power supply is turned
ON. During that time, outputs will be OFF or the values will be as according to settings in the Unit or
slaves. Also, external communications will not be able to be performed. The outputs during this
period will behave according to the slave and Unit specifications. Implement fail-safe circuits so that
external devices do not operate incorrectly.
• Surge current occurs when the power supply is turned ON. When selecting fuses or breakers for
external circuits, consider the above precaution and allow sufficient margin in shut-off performance.
Refer to this manual for surge current specifications.
Transporting
Mounting
Installation
Wiring
Power Supply Design
Turning ON the Power Supply