Yaskawa JAPMC-MC2300 - Manual (Page 324)

12.1 Troubleshooting
12.1.3 LED Indicators (MP2200/MP2300)
12-5
12
Troubleshooting
Errors
Not lit Not lit Not lit Lit Not lit
A serious error has occurred.
Refer to 12.2.3 Correcting User Pro-
gram Errors on page 12-10.
Not lit Not lit Lit Not lit Not lit
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 violation (read)
exception
14: LTB protection violation (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 battery to save the mem-
ory.
Lit Lit Lit Not lit Not lit Operation error
I/O error
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.
(cont’d)
Classification
LED Indicator
Indicator Details Countermeasures
RDY RUN ALM ERR BAT