32 | SAMLEX AMERICA INC.
APPENDIX A
SECTION 4 |
Parameter Setup
4.4.2.8.1 Programming Steps for Parameter "LOW VOLT ALARM"
Enter Key Enter Key Up Key x 7 times Enter Key
A N Y O P E R A T I N G
M O D E S C R E E N
ð
S E L E C T G R O U P
C H A R G E C U R V E
ð
B U L K C U R R E N T
4 0 A
ð
L OW V O L T A L A R M
1 1 . 0 0 V
ð
K E Y I N P A S S WO R D
0 0 0 0
Password 8052
See Section 4.3.1
ð
L OW V O L T A L A R M
1 1 . 0 0 V
4.4.2.9 BATT LOW VOLTAGE
(Table 4.1, Parameter Setup Screen No.9)
This parameter sets the battery low voltage threshold at which suitable protection is initiated to prevent deep discharge
of the battery. The protections are detailed in Sections 4.4.2.9.1 & 4.4.2.9.2 below:
4.4.2.9.1 BATTERY LOW VOLTAGE
[Value of parameter LV CUT OFF TIME (Section 4.4.2.11) 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
blink once at invervals of 1 sec. The buzzer in EVO™ Inverter/Charger will beep once at invervals of 1 sec. The
Inverter Section will continue to operate normally and the Green 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!”
(Section
7,Table 7.1, Srl.1)
will be displayed. The Green 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 attached Owner's Manual for EVO-2212/3012/2224/4024)
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, 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.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™ Inverter/Charger will be shut down completely after the programmed value of LV CUT OFF TIME has
elapsed.
The LCD 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 (Section 4.4.2.11) set at 0 Sec)
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, Srl. 1 of Table 7.1)
will operate as follows:
a) 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!”
(Section 7, Srl. 1 of Table 7.1)
after expiry of
“LV DETECT TIME”
(Section 4.4.2.10)
.
o
Green LED marked “Status”
[3 in Fig 1.1(a)]
will be switched off
o
Red LED marked “Fault /Alarm”
[4 in Fig 1.1(a)]
will be ON steady
o
Buzzer in the EVO Inverter Charger will beep once at intervals of 1 sec