78 | SAMLEX AMERICA INC.
SECTION 5 |
Battery Charging in Evolution™ Series
This is the default setting. Under this setting, the total charging current will be as follows:
•
Total Charging Current
= Charging current from External Charge Controller
PLUS adjusted
charging
current from the Internal AC Charger
o
Adjusted Charging current from the Internal AC Charger
= Programmed value of Parameter
“BULK CURRENT”
(Section 4.4.2.1 of Remote-Control Manual for EVO-RC-PLUS)
MINUS
value of
charging current from the External Solar Charge Controller
i) Programming Parameter “EXT CHARGER” set at Option “0 = Not affect”
(Section 4.4.2.24 of Remote
Control Manual EVO-RC-PLUS)
:
•
Total Charging Current =
Charging current from internal AC charger
PLUS
charging current from the
external Solar Charge Controller
o
Charging current from internal AC Charger
= Full programmed value of Parameter “BULK
CURRENT”
(Section 4.4.2.1 of Remote Control Manual for EVO-RC-PLUS)
The subsequent explanation is for
Programming Parameter "EXT. CHARGER" set at Default Option "0 = Affect"
The net Bulk Charging Current fed to the battery bank will, thus, be as follows:
• Net Bulk Charging Current fed to the battery bank= Adjusted Bulk Charging Current from the internal Battery
Charging S Current available from the external Solar Charge Controller
Normally, Lead Acid batteries should not be charged at very high Bulk Charging Current as this will damage the
batteries due to overheating and cell degradation. Normal Bulk Charging Current is in the range of 10% to 20% of the
Ah capacity of the battery bank at C/20 Discharge Rate. Check with the battery manufacturer regarding recommended
Bulk Charging Current for your battery bank. This value of “Bulk Charging Current” should be programmed as “BULK
CURRENT” using the optional Remote Control EVO-RC-PLUS
[Refer to Section 4.4.2.1 in the Owner’s Manual for EVO-
RC-PLUS Remote Control]
.
The measured value of the charging current received from the external Solar Charge Controller is monitored by the
control circuitry of the internal Battery Charging Section. The amount of Bulk Charging Current produced by the
internal Battery Charging Section is adjusted in real time to satisfy the following condition:
• Internal Bulk Charging Current = Programmed Value of “Bulk Current” – External Charging Current
For example, if the “Bulk Current” in the EVO
TM
is programmed at say 40A and the external Solar Charge
Controller is generating 15A, the internal Battery Charging Section will reduce its current from 40A to 25A so
that the net charging current is equal to the programmed value of 40A.
In other Inverter Chargers where this design feature is not available and the Bulk Charging Current of the internal Battery
Charger Section is fixed, the batteries are likely to be charged at high Bulk Charging Current = Fixed value of Bulk Charging
Current from the internal Battery Charging S Current available from the External Charge Controller.
!
CAUTION!
Ensure that charging voltage related parameters of EVO
TM
like (i) ABSORP VOLTAGE, (ii) EQUALIZE VOLTAGE,
(iii) FLOAT VOLTAGE and (iv) Temperature Compensation (COMPENSATE) are set / programmed to match
the programmed parameters of the external charge controller.
[Please refer to (i) Table 6.2, Section 6 and (ii)
Sections 4.4.2.2 to 4.4.2.5 of the EVO-RC-PLUS Remote Control Manual]
.
Содержание Evolution EVO-4248SP
Страница 115: ...SAMLEX AMERICA INC 115 NOTES...
