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15
Precautions for Safe Use
CJ-series EtherCAT Slave Units Operation Manual (W541)
Precautions for Safe Use
• Do not attempt to disassemble, repair, or modify any Units. Doing so may result in malfunction, fire or
electric shock.
• Do not drop any Unit or subject it to abnormal vibration or shock. Doing so may result in Unit malfunc-
tioning or burning.
• After connecting Power Supply Units, CPU Units, I/O Units, Special I/O Units, or CPU Bus Units
together, secure the Units by sliding the sliders at the top and bottom of the Units until they click into
place. Correct operation may not be possible if the Units are not securely properly.
• Be sure to attach the end cover provided with the CPU Unit to the right-most Unit. CJ-series PLCs
will not operate properly if the end cover is not attached.
• When transporting the Unit, use special packing boxes and protect it from being exposed to exces-
sive vibration or impact during transportation.
• Always connect to a ground of 100
Ω
or less when installing the Units. A ground of 100
Ω
or less
must be installed when shorting the GR and LG terminals on the Power Supply Unit.
• Follow the instructions in this manual to correctly perform wiring.
Double-check all wiring and switch settings before turning ON the power supply. Incorrect wiring may
result in burning.
• Use parts and tools appropriate for wiring.
• 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 cables.
• Mount terminal blocks and connectors only after checking the mounting location carefully.
Be sure that the terminal blocks, Memory Units, expansion cables, and other items with locking
devices are properly locked into place. Improper locking may result in malfunction.
• Before you connect a computer to the PLC, 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 termi-
nal has the same electrical potential as the FG (GR) terminal on the Power Supply Unit. A difference
in electric potential between the computer and PLC may cause failure or malfunction.
• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals. Connection
of bare stranded wires may result in burning.
Disassembly and Dropping
Mounting
Transporting
Installation
Wiring
Summary of Contents for CJ1W- ECT21
Page 1: ...Cat No W541 E1 02 OPERATION MANUAL SYSMAC CJ Series CJ1W ECT21 EtherCAT Slave Unit ...
Page 8: ...CONTENTS 6 CJ series EtherCAT Slave Units Operation Manual W541 ...
Page 30: ...Revision History 28 CJ series EtherCAT Slave Units Operation Manual W541 ...
Page 32: ...Sections in this Manual 30 CJ series EtherCAT Slave Units Operation Manual W541 ...
Page 148: ...Appendices A 34 CJ series EtherCAT Slave Units Operation Manual W541 ...
Page 149: ...I 1 I CJ series EtherCAT Slave Units Operation Manual W541 Index ...
Page 152: ...I 4 CJ series EtherCAT Slave Units Operation Manual W541 Index ...
Page 153: ......