Omron GX-ID1611 User Manual page 15

• Do not apply voltages to the Input Slave Units in excess of the rated input voltage. Excess voltage
or loads may result in burning.
• Do not apply voltages or connect loads to the Outputs Slave Units in excess of the maximum
switching capacity. Excess voltage or loads may result in burning.
 Handling
• When transporting the product, use special packing boxes, and protect it from being exposed to
excessive vibration or impact during transportation.
• Do not bend cables past their natural bending radius or pull on cables.
• Do not place heavy objects on top of the cables.
• After replacing Units, resume operation only after transferring to the new CPU Unit and/or Special
I/O Units the contents of the DM Area, HR Area, and other data required for resuming operation.
Not doing so may result in unexpected operation.
• Check the user program for proper execution before actually running it on the Unit. Not checking
the program may result in unexpected operation.
• When replacing relays or other parts, be sure to confirm that the ratings of the new part are cor-
rect. Not doing so may result in malfunction or burning.
• Confirm that no adverse effect will occur in the system before attempting any of the following.
• Changing the operating mode of the CPU Unit (including changing the setting of the Operat-
ing Mode at Startup)
• Changing the user program or settings
• Changing set values or present values
• Forced refreshing
• Always sufficiently check the safety at the connected devices before you change the settings of a
slave or Unit.
• Do not use thinner when cleaning. Use commercially available alcohol.
• Do not use high-pressure cleaning.
• EtherCAT communications are not always established immediately after the power supply is
turned ON. Use the system variables in the user program to confirm that communications are
established before attempting control operations.
• If you disconnect the cable from an EtherCAT slave or turn OFF the power supply of an EtherCAT
slave to disconnect it from the network, any current communications frames may be lost. If frames
are lost, slave I/O data is not communicated, and the intended operation is sometimes not
achieved. Perform the following processing for a slave that needs to be replaced.
Program the Input Data Invalid system-defined variable as an interlock condition in the user pro-
gram.
Set the PDO communications consecutive timeout detection count setting in the EtherCAT master
to at least 2.
For details, refer to the user's manual for the built-in EtherCAT port on the connected CPU Unit or
Industrial PC.
• When using the cable redundancy in DC Mode, the Communications Error Setting set value for
EtherCAT Slave Units in DC Mode should be set to "1 " (default value) or higher. If the communi-
cations cable is disconnected or the power supply of the EtherCAT Slave Units is turned OFF with
the Communications Error Setting set value set to "0", communications may discontinue.
 External Circuits
• Install external breakers and take other safety measures against short-circuiting in external wiring.
GX-series EtherCAT Slave Unit User's Manual
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