Product Manual

Troubleshooting
5–8 975-0638-01-01 Rev E
F47
DC Under Voltage
(Immediate)
Automatic Immediate battery
under voltage fault.
Check battery condition
(short or open cells) and
ensure correct voltage.
Battery state charge or
capacity is so low that the DC
voltage collapses when
inverter load is applied.
Inverter load is so large that
the DC voltage collapses
when inverter load is applied.
F48
DC Under Voltage
(Fault)
Automatic Voltage at the DC
input terminals is
below the Low
Battery Cut Out
(LBCO) setting for
10 seconds.
Check for the correct battery
voltage at the inverter's DC
input terminals.
Check for external DC loads
on the batteries.
Check condition of batteries
and recharge if necessary.
Reduce the Low Battery Cut
Out (LBCO) setting.
Battery bank capacity may
be inadequate for the loads
in the system.
Battery is
discharged.
Charge the battery.
F49
DC Over Voltage Escalating Auto
fault detection.
Must occur 3 times
in 30 seconds
before becoming a
manual fault
detection.
Voltage at the DC
input terminals is
above the High
Battery Cut Out
Setting
Clear the fault and attempt
restart. Ensure battery
voltage is 21–33 VDC (default
settings) at Conext SW
terminals. Check all other
charging source outputs,
battery cables.
F52
EEPROM ERROR Manual A problem has
been detected with
the internal
memory.
Clear the fault and check the
latest configuration made or
any recent configurations. If
fault detection reoccurs or
occurs frequently, service is
required.
F53
EEPROM ERROR
F54
EEPROM ERROR
F55
EEPROM ERROR
F56
EEPROM ERROR
Table 5-3 Fault Detection Messages
Code Message Type Cause Solution
ConextSW-NA-OwnersGuide.book Page 8 Thursday, July 23, 2015 3:26 PM