Troubleshooting Using Indicators; Cs/Cj-Series Controller Link Units - Omron SYSMAC CS1W-CLK11 Operation Manual

Troubleshooting Using Indicators

9-1 Troubleshooting Using Indicators
9-1-1

CS/CJ-series Controller Link Units

Troubleshooting with RUN, ERC, ERH and INS Indicators
218
This section describes the errors indicated by the Controller Link Unit indica-
tors and possible remedies.
CS-series Unit
CLK21
RUN
ERC
INS
SD
RD
RUN: Operating
ERC: Communications error
ERH: PC error
INS: Network participation
LNK: Data link
M/A: Data link mode
TER: Terminating resistance
The RUN, ERC, ERH, and INS indicators can be used to check whether Con-
troller Link Unit startup and Network participation are operating normally.
Note Be sure to turn off the power to the PC before performing any of the following.
• Disconnecting the Unit or connectors.
• Securing Units or connectors.
• Setting hardware switches.
Indicators
RUN ERC ERH
Lit Not lit Not lit Lit
Not lit Lit ---
Not lit Not lit Not lit Not lit Power is not being sup-
CJ-series Unit
ERH
M/A
LNK
TER
Probable cause
INS
Unit operating normally;
Network participation nor-
mal.
--- Controller Link Unit faulty.
plied correctly to the PC.
The Controller Link Unit
has become loose.
The Controller Link Unit is
mounted in the wrong posi-
tion.
The Controller Link Unit is
faulty.
Section 9-1
CLK21
RUN ERC INS SD
TER ERH M/A LNK RD
RUN P/S
ERC ERH
INS M/A
SD LNK
RD
Probable remedy
---
If the ERC indicators still
lights when the Unit is
mounted on another PC,
replace the Controller Link
Unit.
Reset the node address to
within the 1 to 32 range (for
CS/CJ Series only).
Check the power supply
voltage and supply at the
recommended voltage.
Secure the Controller Link
Unit firmly.
Refer to 3-2-3 CS-series
PCs or 3-2-4 CJ-series
PCs and mount the Unit
correctly.
If the indicators do not light
when the Unit is mounted
in another PC, replace the
Controller Link Unit.