Mitsubishi QJ71BR11 - Page 270

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MELSEC-Q
8 TROUBLESHOOTING
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*3
: This can only be detected in redundant systems. Detection is possible in either the control system or the
standby system.
*4
: This can only be detected in the redundant system control system.
*5
: This can be detected in either a standalone system or a redundant system. However, in a redundant
system it can only be detected in the control system.
*16
: When BATTERY ERROR occurs, the BAT. ALM LED turns on.
Error
Code
(SD0)
*1
Error
Messages
Common
Information
(SD5 to 15)
Individual
Information
(SD16 to 26)
LED Status Operating
Statuses
of CPU
Diagnostic
Timing
RUN ERROR
1500
AC/DC
DOWN
---- ---- On Off Continue Always
1510
DUAL DC
DOWN 5V
*4
---- ---- On On Continue Always
SINGLE PS.
DOWN
Base No./
Power supply
No.
---- On On Continue Always
1520
DC DOWN
5V
*5
---- ---- Off Flicker Stop Always
SINGLE PS.
ERROR
Base No./
Power supply
No.
---- On On Continue Always
1530
DC DOWN
24V
*3
---- ---- On On Continue Always
1600
BATTERY
ERROR
*16
Drive Name ---- On
Off
Continue Always
1601
1602 On