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5.11.1 Charging Profiles for Lithium Batteries
Programming parameter “CHARGING PROFILE” is used to select up to 5 programming options for 2/3-Stage charging
profiles for Lithium Ion Batteries. Details are given in Table below:
Srl. No. of Table 5.2
Srl. No. of Table 5.3
Option under Parameter "CHARGING" Profile
(Section 4.4.2.21 of Owner's Manual for Remote
Control EVO-RC-PLUS)
2
—
"1 = 3-Stage Type 1"
3
—
"2 = 3-Stage Type 2"
—
1
"3 = 2-Stage Type 1"
—
2
"4 = 2-Stage Type 2"
—
3
"5 = 2-Stage Type 3"
i
INFO
Charging of Lithium Ion Batteries is not affected by temperature and hence, Battery Temperature Sensor Model
EVO-BCTS
[Fig 2.5(a)]
is not required to be used
5.11.2 Stop Charging and Stop Inverting Protections when Charging Lithium Batteries
For background information, refer to Section 4.4.2.22.2 in the EVO-RC-PLUS Remote Control Manual. For protection
against over-voltage / over-temperature / over-discharge, Lithium Ion Battery Management Systems
(BMS)
will normally
have capability of providing potential free relay contact closure signal that could be fed to Inverter Charger to stop
charging or stop inverting. For this, the BMS will normally use miniature, Normally Open
(1-Form-A)
, Open Drain Opto-
Isolated DC Solid-State Relay
(SSR)
. The Solid-State Relay output terminals in the BMS are normally marked “+”
(Drain
of Mosfet Switch)
and “-”
(Source of Mosfet Switch)
. Example of this type of relay is IXYS Part No. “CPC1002N”
(60V,
700mA rating)
.
The following 2 types of signals are normally used by the BMS for on/off control of charging and inverting operation
of the Inverter-Charger:
• “Stop Charging” Signal:
In case of (i) over voltage of individual cell / overall battery pack, or (ii) over
temperature of individual cell or overall battery pack, the signal will be “enabled” and SSR contacts will close
(Drain (+) and Source (-) Terminals will be shorted)
.
• “Stop Inverting” Signal:
In case of deep discharge of the battery to the level of Low Battery Cut Off Voltage,
the signal will be “enabled” and the SSR contacts will close
(Drain (+) and Source (-) Terminals will be shorted)
.
If the above two protection functions of the BMS i.e.
“Stop Charging”
and
“Stop Inverting”
are to be used for on / off control
of charging and inverting operations of EVO
TM
Inverter-Charger, the following actions will be required to be undertaken:
a)
Programming parameter
“BATTERY TYPE”
must be changed from Option 1 - “0=Lead Acid”
(Default
setting)
to Option 2 - “1=Lithium”
(See Section 4.4.2.22 of EVO-RC-PLUS Remote Control Manual)
. With
this setting, the function of front panel RJ-45 Jack marked “Battery Temp. Sensor: (
6, Fig 2.1
) will change
from accepting and processing battery temperature signal from the Battery Temperature Sensor EVO-BCTS to
accepting and processing potential free relay contact closure signal from the Solid-State Relay from the BMS
to stop charging /inverting.
SECTION 5 |
Battery Charging in Evolution™ Series
Содержание Evolution EVO-4248SP
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