Troubleshooting, User ’s manual – Toshiba T2N User Manual

Page 100

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6.Troubleshooting

User

’s manual

85

Error Message and Associated Information

CPU LED Display

Classification

Error Message

Information 1

Information 2

Information 3.

Related Special

Relays

RUN

FLT

Meaning of Error and Countermeasures

System
power on

Power supply ON (No error)

Power
Supply

System
power off

Power supply OFF (No error)

RAM check error

Generated
address

Error data

Test data

S0004
S0012

A fault has been detected by a read/write
check of the user data memory (RAM).
When the state does not change through
switching ON the power supply again,
replace the CPU module.

Program BCC error

BCC error data

S0006
S0030

A fault has been detected by a BCC check of
the user program memory (RAM) After
executing Memory Clear, re-load the
program.

Batt voltage drop

S000F

A voltage drop has been found in the RAM
memory back-up battery when the power
supply is ON.
(BATT LED out. No Error Down.)
Replace the battery.

EEPROM BCC error

BCC error data

S0004
S0013

A BCC fault has been detected in the user
program in the EEPROM when transferring
from EEPROM to RAM (when carrying out
Inital Load, etc). (Transfer not executed).
After checking the program, rewrite to
EEPROM

EEPROM warning

Number of times
of writing
exceeded

S0007

Writing to the EEPROM has exceeded life
(100,000 times). (No Error Down). Hereafter,
the possibility of an EEPROM write fault
occurring is high. Therefore replace CPU
module.

Memory

EEPROM
write error

S0039

Any error has been occured during writing
data to an EEPROM.
(Included with operation of XFER instruction)
Carry out EEPROM write command by the
programmer again.

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