xiv
Application Precautions
5
• Do not use communications cables or I/O cables in parallel to or close to
high-tension, high-rate current carrying lines. Doing so may cause faulty
operation.
• Be sure to install the MULTIPLE I/O TERMINAL in the proper direction.
Not doing so may cause faulty operation.
• When attaching Units to the DIN track, be sure to attach them securely.
Not doing so may cause the Units to be damaged.
• Use this product within the specified ranges for communications dis-
tances and connection distances. Not doing so may lead to faulty opera-
tion.
• Use the specified cables when making communications connections. Not
doing so may cause faulty operation.
• Be sure to wire the communications paths, the communications power
supplies, the internal power supplies, and the I/O power supplies cor-
rectly. Use voltages for the power supplies that are within the specified
ranges. Not doing so may cause malfunction.
• Do not, under any circumstances, use this product with loads exceeding
the contact rating values. Doing so may cause deterioration of insulation
and damage.
• The life-expectancy of the relays depends greatly on the switching condi-
tions. Before practical use of the product, perform a trial operation of the
product in the actual conditions in which it will be used. Use the product at
a switching frequency that will allow efficient operation. Continued use of
the product in conditions causing reduced efficiency will cause deteriora-
tion of insulation and damage.
• Connection Cables
• Before switching ON power supplies, check that the connectors are
mounted securely.
• Check that the connectors for the I/O Unit interfaces are securely
locked.
• Tightening Torques
Check that all the screws for the Units are tightened to the correct torque.
Not doing so may cause faulty operation.
• Internal power supplies, I/O power supplies, terminal screws:
0.3 to 0.5 N • m
• Communications cable, communications connector screws:
0.25 to 0.35 N • m
• High-density I/O Unit connector screws: 0.25 to 0.35 N • m
• Cleaning
• Do not used thinner-based products for cleaning. Doing so may dis-
solve attachment areas or cause discoloration.
• Power Supply
• Use separate power supplies for communications power supplies, in-
ternal power supplies, I/O power supplies, load power supplies, and
encoder power supplies. Not doing so may lead to faulty operation.
!Caution
The following precautions are necessary to ensure the general safety of the
system. Always heed these precautions.
• Provide double safety mechanisms to handle incorrect signals that can be
generated by broken signal lines or momentary power interruptions.
• Provide external interlock circuits, limit circuits, and other safety circuits in
addition to any provided within the PC System to ensure safety.
Summary of Contents for DRT1-COM
Page 1: ...OPERATION MANUAL Cat No W348 E1 05 DRT1 COM GT1 Series DeviceNet MULTIPLE I O TERMINAL ...
Page 2: ...DRT1 COM GT1 Series DeviceNet MULTIPLE I O TERMINAL Operation Manual Revised May 2003 ...
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Page 233: ...DRT1 COM GT1 Series DeviceNet MULTIPLE I O TERMINAL Cat No W348 E1 05 OPERATION MANUAL ...