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SECTION 4 |
4.4.2.9 BATT LOW VOLTAGE (Table 4.3, Screen No. 9)
This parameter sets the battery low voltage threshold at which the Inverter Section / the complete EVO
Charger will be shut down to protect the battery from deep discharge:
4.4.2.9.1 BATTERY LOW VOLTAGE (Value of parameter LV CUT OFF TIME set from 1 to 7200 sec)
•
When the battery voltage drops to the set threshold of "BATT LOW VOLTAGE", the Red LED marked "Fault" will
flash once per second. The buzzer in EVO™ Inverter/Charger will beep once per second. The Inverter Section will
continue to operate normally and the Blue LED marked "Status" will continue to be ON steady.
•
If the battery voltage stays at or below the above threshold for duration equal to the "LV DETECT TIME" (Section
4.4.2.10), only the Inverter Section will be switched OFF and fault message "Battery low voltage!" (Table 7.1, Srl.
No.1) will be displayed. The Blue LED marked "Status" will be switched OFF and the Red LED marked "Fault" will
remain ON steady. The buzzer in EVO™ Inverter/Charger will beep steady.
•
If the batteries are charged by external Solar Charge Controller connected directly to the batteries or through the
External Charger Input (3, 4 in Fig 2.1 in the Owner's Manual for Evolution™ Series Inverter/Chargers) and the
battery voltage recovers to the set "RESET VOLTAGE" (Section 4.4.2.7) before the expiry of "LV CUT OFF TIME"
(Section 4.4.2.11), while in "Battery low voltage!" fault condition (Table 7.1, Srl. No.1), the Inverter Section will
restart and the "Battery low voltage!" fault condition will be cleared.
•
While in "Battery low voltage!" fault condition (Section 7, Table 7.1, Srl. No.1), if AC input is made available
before the expiry of "LV CUT OFF TIME" (Section 4.4.2.11), the "Battery low voltage!" fault condition will be
cleared. The EVO™ Inverter/Charger will restart in Inverter Mode, synchronize with the AC input and then,
transfer to the AC input at zero crossing. It will now operate in Charging Mode.
•
If the "Battery low voltage!" fault condition is NOT reset within the "LV CUT OFF TIME" (Section 4.4.2.11),
the EVO
will be shut down completely after the programmed value of LV CUT OFF TIME has elapsed. The LCD
TM
display / Status LED / Buzzer will be off in this condition.
4.4.2.9.2 BATT LOW VOLTAGE (Value of parameter "LV CUT OFF TIME" set at 0 sec)
4.4.2.9.2.1
When programming value of parameter "LV CUT OFF TIME" (Section 4.4.2.11) is set at 0 sec, "Battery
low voltage!" fault condition (Section 7, Table 7.1, Srl.No.1) will operate as follows:
•
The unit will NOT shut down completely due to "Battery low voltage!" fault condition (as in Section
4.4.2.9.1) but will continue to display fault message "Battery low voltage!" after expiry of "LV DETECT
TIME" (Section 4.4.2.10).
•
Blue LED marked "Status" (3 in Fig 1.1) will be switched off
•
Red LED marked "Fault /Alarm" (4 in Fig 1.1) will be ON steady
•
Buzzer in the EVO
4.4.2.9.2.2
The unit will automatically switch to "Charging Mode" only under the following conditions:
a) If qualified AC input is available that is within the limits of voltage (Sections 4.6 and 4.7) and frequency
(Section 4.5.2.4 and 4.5.2.6)
b) If the battery voltage at the time of qualified AC input availability is higher than "Battery ultra low voltage!"
threshold.
58 | SAMLEX AMERICA INC.
Parameter Setup
Inverter Charger will beep once at intervals of 1 sec
TM
Inverter/
™
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