C200Hx/Hg/He And Cqm1H-Series Controller Link Units - Omron SYSMAC CS1W-CLK11 Operation Manual

Troubleshooting Using Indicators
9-1-2

C200HX/HG/HE and CQM1H-series Controller Link Units

Troubleshooting with RUN, ERC, ERH and INS Indicators
222
C200HX/HG/HE Unit
CLK21
RUN
ERC
INS
SD
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-
Lit Lit ---
TER
ERH
M/A
RD LNK
RUN: Operating
ERC: Communications error
INS: Network participation
LNK: Data link
M/A: Data link mode
TER: Terminating resistance set
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 Bus Connection Unit
has become loose.
The Controller Link Unit is
mounted in the wrong slot.
The Controller Link Unit is
faulty.
Not lit The node address is out-
side the setting range.
The same node address is
being used by two different
Units.
Section 9-1
CQM1H-series Unit
CLK21
RUN TER
ERC ERH
INS M/A
SD RD LNK
Probable remedy
---
If the ERC indicators still
lights when the Unit is
mounted on another PC,
replace the Controller Link
Unit.
Check the power supply
voltage and supply at the
recommended voltage.
Secure the Controller Link
Unit firmly.
Tighten the mounting
screws on the Bus Con-
nection Unit.
Refer to 3-2-1 C200HX/
HG/HE PCs and 3-2-4 CJ-
series PCs and mount the
Unit correctly.
If the indicators do not light
when the Unit is mounted
on another PC, replace the
Controller Link Unit.
Reset the node address to
within the 1 to 32 range.
Reset so that each node
address is used only once
within the same Network.