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319
LED Error Indicators
Section 11-3
11-3 LED Error Indicators
The status of the LED indicators on the front of the PCU can be used to diag-
nose errors as shown in the following table.
The status of the LED indicators on the front of the PCU can be used to diag-
nose errors as shown in the following table. The status of the indicators is as
follows:
❍
:
ON
✩
:
Flashing
●
:
OFF
---: • When a data error or an external sensor input error occur, the indicator
for the corresponding axis will flash.
• In normal operation, the indicator will be lit during pulse output, and be
unlit while pulse output is stopped.
RUN
ERC
ERH
NC4 3
Z
U
X
Y
RUN
ERC
ERH
NC2 3
X
Y
RUN
ERC
ERH
NC1 3
X
LED
Error
Cause
Remedy
R
U
N
E
R
C
E
R
H
X
Y
Z
U
● ● ● ● ● ● ●
PLC power supply
OFF
The PLC’s power supply is
OFF.
Turn ON the PLC’s power sup-
ply.
Watchdog timer error
The watchdog timer for the
PCU turned ON.
Mount the PCU securely and
reset the power supply.
CPU Unit power inter-
ruption
An interruption in the power
supply was detected at the
CPU Unit.
Remove the cause of the power
interruption and reset the
power supply.
● ● ❍ ● ● ● ●
Setting error
The unit number set for the
PCU is outside the acceptable
range.
Set the unit number for each of
the Units to a setting within the
acceptable range, reset the
power supply, and create an I/O
table from the CPU Unit.
The unit number set for the
PCU is the same as the unit
number set for another Unit
(unit number duplication).
Change the unit number set-
ting, reset the power supply,
and create an I/O table from the
CPU Unit.
I/O table has not been created.
Create an I/O table from the
CPU Unit.
Communications with the CPU
Unit are not possible.
Mount the Unit securely.
● ❍ ● ● ● ● ●
PCU error
Unexpected operation occurred
at the PCU.
Replace the PCU.
● ❍ ❍ ● ● ● ●
Unit type error
There is a fault in a component
of an I/O card or bus ASIC in
the PCU.
Replace the PCU.
● ❍ ● ❍ ● ● ●
RAM error
There is a fault in the PCU’s
RAM.
Replace the PCU.
Содержание CJ1W-C113 - REV 02-2008
Страница 1: ...Position Control Units Cat No W397 E1 07 SYSMAC CJ1W NC113 213 413 133 233 433 OPERATION MANUAL ...
Страница 2: ...CJ1W NC113 213 413 133 233 433 Position Control Units Operation Manual Revised February 2008 ...
Страница 3: ...iv ...
Страница 13: ...xiv ...
Страница 15: ...xvi ...
Страница 19: ...xx ...
Страница 27: ...xxviii Conformance to EC Directives 6 ...
Страница 43: ...16 Control System Principles Section 1 7 ...
Страница 47: ...20 Basic Procedures Section 2 ...
Страница 139: ...112 Examples of Parameter Settings Section 4 9 ...
Страница 173: ...146 Transferring Data with CX Position Section 5 7 ...
Страница 223: ...196 Sample Program Section 7 7 ...
Страница 259: ...232 Sample Program Section 8 10 ...
Страница 293: ...266 Easy Backup Function Ver 2 0 or later Section 9 11 ...
Страница 369: ...342 Reading Error Information with CX Position Section 11 8 ...
Страница 385: ...358 Common Parameter Area Appendix C ...
Страница 399: ...372 Parameter Coding Sheets Appendix E ...