Smartaxis Operating Status, Output, And Err Led During Errors; Error Causes And Actions - IDEC FT1A Series User Manual

14: T
ROUBLESHOOTING

SmartAXIS Operating Status, Output, and ERR LED during Errors

Error Items
Power failure
Watchdog timer error
User program ROM sum check error
TIM/CNT preset value sum check error
Keep data error
User program syntax error
User program writing error
System error
Memory cartridge program transfer error
User program execution error
SD memory card access error
*1: Operation starts to run and outputs are turned on or off according to the user program as default, but it is also possible to stop operation and
turn off outputs using the Function Area Settings on WindLDR. See "Run/Stop Selection at Memory Backup Error" on page 5-5.
*2: The SmartAXIS Pro has no error status LED.

Error Causes and Actions

0001h: Power Failure
This error indicates when the power supply is lower than the specified voltage. This error is also recorded when the power is
turned off. Clear the error code using WindLDR.
0002h: Watchdog Timer Error
The watchdog timer monitors the time required for one program cycle (scan time). When the time exceeds the allowed time, the
watchdog timer indicates an error. Clear the error code using WindLDR. If this error occurs frequently, the SmartAXIS has to be
replaced.
0008h: User Program ROM Sum Check Error
The user program stored in the SmartAXIS ROM is corrupted. Download a correct user program to the SmartAXIS, and clear the
error code using WindLDR.
When a memory cartridge is installed on the SmartAXIS, the user program in the memory cartridge is checked.
0010h: Timer/Counter Preset Value Sum Check Error
The execution data of timer/counter preset values is corrupted. The timer/counter preset values are initialized to the values of the
user program automatically. Note that changed preset values are cleared and that the original values are restored. Clear the error
code using WindLDR.
0040h: Keep Data Sum Check Error
This error indicates that the data designated to be maintained during power failure is corrupted because of memory backup failure.
Note that the "keep" data of internal relays and shift registers are cleared. Data of counters and data registers are also cleared.
Clear the error code using WindLDR.
If this error occurs in a short period of power interruption after the battery has been charged as specified, the battery is defective
and the SmartAXIS has to be replaced.
0080h: User Program Syntax Error
This error indicates that the user program has a syntax error. Correct the user program, and download the corrected user program
to the SmartAXIS. The error code is cleared when a correct user program is transferred.
0100h: User Program Writing Error
This error indicates a failure of writing into the SmartAXIS ROM when downloading a user program. The error code is cleared when
writing into the ROM is completed successfully. If this error occurs frequently, the SmartAXIS has to be replaced.
When a memory cartridge is installed on the SmartAXIS, writing into the memory cartridge is checked.
14-4
Operating
Status
Stop
Stop
Stop
Maintained
Maintained/
*1
Stop
Stop
Stop
Stop
Stop
Maintained
Maintained
S AXIS P /L U '
MART RO ITE SER S
Output ERR LED
OFF OFF
OFF ON
OFF ON
Maintained ON
*1
Maintained/OFF OFF
OFF ON
OFF ON
OFF ON
OFF ON
Maintained ON
Maintained ON
M FT9Y-B1378
ANUAL
Checked at
Any time
Any time
Starting operation
When checking a change in
timer/counter settings
Turning power on
Downloading user program
Downloading user program
Turning power on
Turning power on
Executing user program
When an SD memory card is
inserted