Troubleshooting Using Indicators - Omron NS8-TV0-V2 Setup Manual

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Troubleshooting Using Indicators

The errors indicated by indicators on the Controller Interface Unit and remedies are ex-
plained in this section.
Indicators
RUN: Operating
ERC: Communications error
ERH: EEPROM Error
INS: Network participation
LNK: Data link
Troubleshooting with RUN, ERC, ERH, and INS Indicators
The RUN, ERC, ERH, and INS indicators can be used to check whether the Controller Link
Interface Unit and network participation are operating normally.
• Always turn OFF the power to the PT before performing any of the following
Precautions
for Safe Use
• Connecting/Disconnecting a Board or a connector.
• Securing a Board or a connector.
• Setting hardware switches.
Indicators
RUN ERC ERH INS
Lit Not lit Not lit Lit
− −
Not lit Lit
Not lit Not lit Not lit Not lit Power is not being supplied to
−
Lit Lit Not lit The same node address is be-
5-2 Connecting to the Host Using Controller Link
operations.
Probable cause
The Unit operating normally.
Network participation normal.
Controller Link Interface Unit is
faulty.
PT normally.
The Controller Link Interface
Unit has become loose.
Controller Link Interface Unit is
mounted in the wrong slot.
Controller Link Interface Unit is
faulty.
ing used in the same network.
Remedy

If ERC indicator lights even after
mounting on another PT, replace the
Controller Link Interface Unit
Check the power supply voltage and
supply at the recommended voltage.
Secure the Controller Link Interface
Unit firmly.
Refer to 3-8 Installing the Controller
Link Interface Unit, and mount the
Board correctly.
If indicators do not light when the
Board is mounted on another PT, re-
place the Controller Link Interface Unit
Reset so that each node address is
used only once within the same net-
work.
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