Mitsubishi Q2ASCPU User Manual page 88

Error
Error
Code
Message
(SD0)
SP. UNIT
1401
DOWN
SP. UNIT
1402
DOWN
CONTROL-
1411
BUS. ERR.
CONTROL-
1412
BUS. ERR.
SYS. UNIT
1421
DOWN
1500 AC/DC DOWN
*1 CPU operation can be set in the parameters at error occurrence. (LED indication varies.)
*2 The BAT.ALM LED turns on at BATTERY ERROR.
Common Individual
Information Information
(SD5 to 15) (SD16 to 26)
Module No.
–
(Slot No.)
Module No. Program error
(Slot No.) location
Module No.
–
(Slot No.)
Module No. Program error
(Slot No.) location
– –
– –
73
LED Status CPU
Operation
RUN ERROR
Status
*2
Off Flicker
Stop
Off Flicker Stop
Off Flicker Stop
Off Flicker Stop
Off Flicker Stop
On Off Continue
Diagnostic
Timing
At power ON/
At reset
During
execution of
FROM/TO
instruction set
At power ON/
At reset
During
execution of
FROM/TO
instruction set
Always
Always