Omron SYSMAC CS Series User Manual

224
Errors and Alarm Troubleshooting Section 7-1
7-1-2 Errors during Initialization
The following table lists errors that can occur during the initial processing per-
formed after the power is turned ON or the Inner Board is restarted.
A424 10 Partial Function
Block Database
(RAM) Error
During Simplex
Operation (non-
fatal error)
Changes to 1 (turns ON) when a database (RAM) error
occurs for some function blocks or when an error occurs
while restoring data from the Memory Card using the sim-
ple backup function when mounted to CS1D CPU Units
and operating in simplex mode or when mounted to CS1-H
CPU Units.
1: Function block database
error during simplex opera-
tion or error while restoring
data.
0: Normal
11 Backup Data
(Flash Mem-
ory) Error Flag
This flag is set to 1 (ON) when the parameter data stored in
flash memory has been corrupted.
1: Flash memory data
error
0: Normal
12 Specified EM
Bank Unusable
Error Flag
This flag is set to 1 (ON) when specified EM bank is not a
usable bank.
1: Cannot be used.
0: Can be used.
13 to
14
Not used. --- ---
15 Automatic
Recovery from
Cycle Offset
Flag (nonfatal
error)
If something unforeseen causes the cycle to the right or left
to be offset, duplex initialization is automatically executed
to restore synchronous operation. The flag is set to 1 (ON)
when recovery is achieved.
1: Duplex initialization exe-
cuted for synchronous dis-
placement recovery.
0: Normal
Word Bit Name Explanation Settings
LED Indicators
on front of
Loop
Controller
LED
Indicator
on front of
CPU Unit
Problem Cause Status Error
code
(Stored
in error
log.)
Corrective action
RDY EXEC ERR/ALM
(See note.)
Not lit Not lit Undeter-
mined
Power sup-
ply problem
The correct internal
power supply is not
being supplied to the
Loop Controller.
Operation is
stopped.
None Check the power supply volt-
age and verify that the correct
voltage is being supplied. Also,
check the PLC's total current
consumption.
The Loop Controller is
not mounted properly
in the CPU Unit.
Mount the Loop Control Board
securely. Replace the Loop
Control Board if the error
recurs after the Board is
secured and power is turned
ON again.
The Loop Controller is
faulty.
Turn the power OFF and ON
again. If the error occurs with a
Loop Control Board, replace
the Loop Control Board. If the
error occurs with the Loop
Controller component of a
Loop-control CPU Unit,
replace the entire Loop-control
CPU Unit.
Not lit Not lit Lit Initial
recognition
error
(Inner
Board
Stopped
Error)
The Loop Controller
was not recognized
properly by the CPU
Unit.
Operation is
stopped.
None Mount the Loop Control Board
securely. Replace the Loop
Control Board if the error
recurs after the Board is
secured and power is turned
ON again. If the error occurs
with the Loop Controller com-
ponent of a Loop-control CPU
Unit, replace the entire Loop-
control CPU Unit.
Not lit Not lit Lit Inner
Board Error
A hardware error was
detected (in memory or
elsewhere) during the
self-diagnostic test.
Operation is
stopped.
None Turn the power OFF and ON
again. Replace the Loop Con-
trol Board if the error recurs. If
the error occurs with the Loop
Controller component of a
Loop-control CPU Unit,
replace the entire Loop-control
CPU Unit.

Omron SYSMAC CS Series Specifications

General

Brand	Omron
Model	SYSMAC CS Series
Category	Controller
Language	English