76
1510
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.)
Check the supply voltage of the power
supply module. If the voltage is
abnormal then replace the power supply
module.
Q4AR
1520
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.)
Check the supply voltage of the power
supply module. If the voltage is
abnormal then replace the power supply
module.
Q4AR
1530
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.)
Check the 24VDC power supplied to the
system management module AS92R.
Q4AR
1600
• The battery voltage in the CPU
module has dropped below stipulated
level.
• The lead connector of the CPU
module battery is not connected.
• Change the battery.
• If the battery is for program memory,
standard RAM or for the back-up
power function, install a lead
connector.
QnA
1601
Voltage of the battery on memory card 1
has dropped below stipulated level.
Change the battery.
QnA
1602
Voltage of the battery on memory card 2
has dropped below stipulated level.
Change the battery.
QnA
Error
Code
(SD0)
Error Contents and Cause
Corrective Action
Corresponding
CPU
