6
Maintenance and Inspection
6.3.3
LED Indicators
6-8
(cont’d)
Classification
LED Indicator
Indicator Details Countermeasures
RDY RUN ALM ERR BAT
Errors
Not lit Not lit Not lit Lit Not lit
A serious error has occurred.
Refer to 6.4.3 Troubleshooting When
ERR is Lit on page 6-12.
No lit Not lit Lit Not lit Not lit
A serious error has occurred.
Refer to 6.4.4 Troubleshooting When
ALM is Lit on page 6-13.
Not lit Not lit Not lit Blinking Not lit
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
A hardware error has occurred.
Replace the Module.
Not lit Not lit Blinking Blinking Not lit
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
Warnings
−− − −Lit
Battery alarm Replace the memory storage battery.
Lit Lit Lit Not lit Not lit
Operation error
I/O error
Refer to 6.4.4 Troubleshooting When
ALM is Lit on page 6-13.
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