YASKAWA JEPMC-MP2300-Y Series User Manual page 548

12 Maintenance and Inspection
12.3.3 LED Indicators
Classification
RDY RUN
Not lit Not lit
No lit Not lit
Not lit Not lit
Errors
Not lit Not lit Blinking Blinking Not lit
− −
Warnings
Lit Lit
12-8
LED Indicator
ALM ERR BAT
Not lit Lit Not lit
Lit Not lit Not lit
Blinking Not lit
Not lit
− −
Lit
Lit Not lit Not lit
Indicator Details
A serious error has occurred.
Software Error
Number of LED blinks indicates error
type.
3: Address error (read) exception
4: Address error (write) exception
5: FPU exception
6: Illegal general command
exception
7: Illegal slot command exception
8: General FPU inhibited exception
9: Slot FPU inhibited exception
10: TLB multibit exception
11: LTB error (read) exception
12: LTB error (write) exception
13: LTB protection volation (read)
exception
14: LTB protection volation (write)
exception
15: Initial page write exception
Hardware Error
Number of LED blinks indicates error
type.
2: RAM diagnostic error
3: ROM diagnostic error
4: CPU function diagnostic error
5: FPU function diagnostic error
Battery alarm
Operation error
I/O error
(cont'd)
Countermeasures
Refer to 12.4.3 Correcting User Pro-
gram Errors on page 12-13.
A hardware error has occurred.
Replace the Module.
Refer to 12.2 Replacing the Basic
Module Battery on page 12-4 and
replace the Battery.
Refer to 12.4.4 ( 3 ) Ladder Program
User Operation Error Status on page
12-16 and 12.4.4 ( 5 ) System I/O
Error Status on page 12-18.