Advertisement
Always input the voltage and current to the Unit within the
specified ranges.
Using a voltage or current outside the specified range may result
in malfunction or fire.
Do not touch any part of the terminal section or disassemble the
Unit and touch internal parts while the power is being supplied.
Do not apply power while the cover is open.
Doing so may result in electric shock.
Fail-safe measures must be taken by the customer to ensure
safety in the event of incorrect, missing, or abnormal signals
caused by broken signal lines, momentary power interruptions, or
other causes. Serious accidents may result from abnormal
operation if proper measures are not provided.
Provide safety measures in external circuits (i.e., not in the
Programmable Controller), including the following items, to
ensure safety in the system if an abnormality occurs due to
malfunction of the PLC or an external factor affecting the PLC
operation.
Serious accidents may result from abnormal operation if proper
measures are not provided.
• Emergency stop circuits, interlock circuits, limit circuits, and
similar safety measures must be provided in external control
circuits (i.e., not in Slave Units or Repeater Units).
• The outputs from Slave Units or Repeater Units may remain
ON or OFF due to deposits on or burning of the output relays,
or destruction of the output transistors. As a countermeasure
for such problems, external safety measures (i.e., not in Slave
Units or Repeater Units) must be provided to ensure safety in
the system.
• When the 24-VDC output (service power supply) from a Slave
Unit or Repeater Unit is overloaded or shortcircuited, the
voltage may drop and result in the outputs being turned OFF.
As a countermeasure for such problems, external safety mea-
sures (i.e., not in Slave Units or Repeater Units) must be pro-
vided to ensure safety in the system.
CompoNet Gateway Unit for CC-Link Operation Manual
WARNING
Safety Precautions
9
Advertisement
Troubleshooting
