Mitsubishi Q2ACPU - Page 366

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22. TROUBLE SHOOTING
1510
[DUAL DC DOWN 5V]
The power supply voltage (100 to 240VAC) of
either of the two power supply modules on the
power supply duplexing extension base unit
dropped to or below 85% of the rated voltage.
(This can be detected from the control system of
the redundant system.)
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
Check the supply voltage of the power supply
module. If the voltage is abnormal then replace the
power supply module.
RUN:
On
ERR.:
On
CPU Status:
Continue
Q4AR
1520
[DC DOWN 5V]
The voltage(100 to 240VAC) of the power supply
module on the extension base unit dropped to or
below 85% of the rated voltage.
(This can be detected from the control system of
the stand-alone system or redundant system.)
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
Check the supply voltage of the power supply
module. If the voltage is abnormal then replace the
power supply module.
RUN:
Off
ERR.:
Flicker
CPU Status:
Stop
1530
[DC DOWN 24V]
The 24 VDC power supplied to the system
management module AS92R has dropped below
90% of the rated voltage.
(This can be detected from the control system or
standby system of the redundant system.)
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
Check the 24VDC power supplied to the system
management module AS92R.
RUN:
On
ERR.:
On
CPU Status:
Continue
1600
[BATTERY ERROR
*2
]
• The battery voltage in the CPU module has
dropped below stipulated level.
• The lead connector of the CPU module battery is
not connected.
■Collateral informationmmon
• Common Information:Drive Name
• Individual Information:–
■Diagnostic Timing
• Always
• Change the battery.
• If the battery is for program memory, standard
RAM or for the back-up power function, install a
lead connector.
RUN:
On
ERR.:
Off
CPU Status:
Continue
QnA
1601
[BATTERY ERROR
*2
]
Voltage of the battery on memory card 1 has
dropped below stipulated level.
■Collateral informationmmon
• Common Information:Drive Name
• Individual Information:–
■Diagnostic Timing
• Always
Change the battery.
1602
[BATTERY ERROR
*2
]
Voltage of the battery on memory card 2 has
dropped below stipulated level.
■Collateral informationmmon
• Common Information:Drive Name
• Individual Information:–
■Diagnostic Timing
• Always
Change the battery.
RUN:
On
ERR.:
On
CPU Status:
Continue
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU
*2 The BAT.ALM LED turns on at BATTERY ERROR.