YASKAWA MP2000 Series User Manual page 323

LED Indicator
Classification
RDY RUN
Not lit Not lit
Not lit Not lit
Not lit Not lit
Errors
Not lit Not lit Blinking Blinking Not lit
– –
Warnings
Lit Lit
ALM ERR BAT
Not lit Lit Not lit
A serious error has occurred.
Lit Not lit 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
Not lit Blinking Not lit
9: Slot FPU inhibited exception
10: TLB multibit exception
11: LTB error (read) exception
12: LTB error (write) exception
13: LTB protection violation (read)
exception
14: LTB protection violation (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
– – Lit
Battery alarm
Operation error
Lit Not lit Not lit
I/O error
12.1.3 LED Indicators (MP2200/MP2300)
Indicator Details
Refer to 12.2.3 Correcting User Pro-
gram Errors on page 12-10.
A hardware error has occurred.
Replace the Module.
Replace the battery to save the mem-
ory.
Refer to 12.2.4 ( 3 ) Ladder Program
User Operation Error Status on page
12-13 and 12.2.4 ( 4 ) System Service
Execution Status on page 12-15.
12.1 Troubleshooting
(cont'd)
Countermeasures
12-5
12