![background image](http://html1.mh-extra.com/html/omron/cvm1-clk21/cvm1-clk21_operation-manual_742531234.webp)
218
Troubleshooting Using Indicators
Section 9-1
9-1
Troubleshooting Using Indicators
This section describes the errors indicated by the Controller Link Unit indica-
tors and possible remedies.
9-1-1
CS/CJ-series Controller Link Units
Troubleshooting with RUN, ERC, ERH and INS Indicators
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.
RUN: Operating
ERC: Communications
error
ERH: PC
error
INS: Network
participation
LNK: Data
link
M/A: Data
link
mode
TER: Terminating
resistance
RUN
ERC
INS
SD
RD
M/A
LNK
P/S
ERH
CS-series Unit
CJ-series Unit
RUN
ERC
INS
SD
RD
M/A
LNK
ERH
CLK21
TER
RUN
CLK21
ERC
INS
ERH M/A LNK
RD
TER
SD
Indicators
Probable cause
Probable remedy
RUN
ERC
ERH
INS
Lit
Not lit Not lit Lit
Unit operating normally;
Network participation nor-
mal.
---
Not lit Lit
---
---
Controller Link Unit faulty.
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).
Not lit Not lit Not lit Not lit Power is not being sup-
plied correctly to the PC.
Check the power supply
voltage and supply at the
recommended voltage.
The Controller Link Unit
has become loose.
Secure the Controller Link
Unit firmly.
The Controller Link Unit is
mounted in the wrong posi-
tion.
Refer to 3-2-3 CS-series
PCs or 3-2-4 CJ-series
PCs and mount the Unit
correctly.
The Controller Link Unit is
faulty.
If the indicators do not light
when the Unit is mounted
in another PC, replace the
Controller Link Unit.
Содержание CVM1-CLK21
Страница 2: ......
Страница 3: ......
Страница 4: ...iv...
Страница 6: ...vi...
Страница 33: ...17 Application Precautions Section 1 5 2 9 8 2 2 8 5 2...
Страница 34: ......
Страница 42: ......
Страница 66: ......
Страница 103: ...87 Setting Data Links Section 5 2 Device Information Setting Data Link Tables...
Страница 124: ......
Страница 192: ......
Страница 280: ......
Страница 284: ......
Страница 300: ......
Страница 304: ......