Samlex Power SSW-350-12A Manuel Du Propriétaire page 15

Section 7 |
TROUBLE / SYMPTOMS
AC OUTPUT IS AVAILABLE
On the inverter
• Green LED on the front panel of the
inverter is oN
• Red LED is OFF
• Buzzer alarm sounds intermittently when
DC input voltage drops to Low DC Input
Voltage Alarm Threshold of 11V +/- 0.3V
when delivering high power loads
• Yellow LED comes ON when buzzer
alarm is sounded.
On the Remote Control SSW-R1-12B
(For SSW-1000-1500-12A)
• DC input voltage is being displayed and
intermittently drops to Low DC Input Volt-
age Alarm Threshold of 11V +/- 0.3V when
delivering high power loads
• Message "Input Fault" intermittently
flashes whenever DC input voltage drops
to Low DC Input Voltage Alarm Threshold
of 11V +/- 0.3V
• Power Bar Graph will be ON if the output
power is > 50W to 100W
NO AC OUTPUT
On the inverter
• Green LED on the front panel of the
inverter is oN
• Red LED is OFF
• Buzzer alarm sounds all the time
• Yellow LED is ON
On the Remote Control SSW-R1-12B
(For SSW-1000-1500-2000-12A)
• DC input voltage is being displayed and
has dropped to Low DC Input Voltage
Shutdown Threshold of 10.5V +/- 0.3V
• Message "Input Fault" is flashing
• Power Bar Graph is OFF
• LCD is dimmed
AC OUTPUT IS AVAILABLE
On the inverter
• Green LED on the front panel of the
inverter is oN
• Red LED is OFF
• Buzzer alarm sounds when DC input
voltage drops to Low DC Input Voltage
Alarm Threshold of 11V +/- 0.3V even on
low AC loads
• Yellow LED comes ON when buzzer alarm
is sounded.
On the Remote Control SSW-R1-12B
(For SSW-1000-1500-2000-12A)
• DC input voltage is being displayed and
drops to Low DC Input Voltage Alarm
Threshold of 11V +/- 0.3V even at low
loads
• Message "Input Fault" flashes whenever
DC input voltage drops to Low DC Input
Voltage Alarm Threshold of 11V +/- 0.3V
• Power Bar Graph is ON if the output
power is > 50W to 100W
tRoUBLeSHootinG GUiDe
POSSIBLE CAUSE(S)
Intermittent buzzer alarm due to
intermittent high AC loads
1. DC input wire size is not adequate for higher
capacity loads or there is loose connection
between the battery and the inverter leading
to DC input voltage falling below the Low DC
Input Voltage Alarm Threshold of 11V +/- 0.3V
2. The battery has developed sulfation due to
undercharging. In this condition, the internal
resistance of the battery rises above normal
and hence causes abnormal voltage drop
on its terminals at higher discharge current
consumed by higher capacity load
Shutdown due to low DC input voltage
1. DC input wire size is not adequate for the
capacity of the AC load or there is loose con-
nection between the battery and the inverter
leading to DC input voltage falling below the
Low DC Input Voltage Shutdown Threshold of
10.5V +/- 0.3V
2. The battery has developed sulfation due to
undercharging. In this condition, the internal
resistance of the battery rises above normal
and hence causes abnormal voltage drop
on its terminals at higher discharge current
consumed by higher capacity load
Buzzer alarm due to low DC input
voltage even at low AC loads
The battery is almost discharged
SUGGESTED REMEDIES
1. Use thicker wires between the battery and
the inverter and tighten all DC input circuit
connections
2. Check internal resistance of the battery and
remove sulfation by equalizing the battery or
replace the battery
1. Use thicker wires between the battery and
the inverter and tighten all DC input circuit
connections
2. Check internal resistance of the battery and
remove sulfation by equalizing the battery or
replace the battery
recharge the battery.
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