Document
9911004rev27
Title
Date
2017-02-16
Page
18(81)
SBS MicroSMART Battery Charger Technical Handbook
If the communication between charger and BMU fails during
charging the latest received BMU information (SOC, Battery
temperature, alarm etc.) are used for charging. A new radio
communication attempt is made once every minute. See the
BMU communication chapter for more information.
•
Dual
, attempt will be made to upload parameters from BMU
(BMU Init 1 only), if no BMU present normal charging will start
according to parameters set from menu. See the BMU
communication chapter for more information.
•
Multi
, attempt will be made to upload parameters from BMU
(BMU Init 1 only), if no BMU present charger will determine the
nominal battery voltage and set charging parameters
thereafter. The charging parameters to be used are set from
charger
Charging param
sub menues
Battery 6 cells, Battery 12
cells
,
Battery 18 cells
,
Battery 24 cells
or
Battery 40 cells
. When
battery voltage is determined two conditions must be fulfilled.
First of all, the voltage must be stable, delta voltage must be
below 10mV/cell/minute.
Secondly the measured battery voltage must be within 1.9VPC
and 2.3VPC of any of the nominal voltages supported. The
charger will not start until the two conditions are fulfilled. This
can take some minutes depending on the state of the battery. If
measured battery voltage is not within limits of any of the
nominal voltages supported the charger will not start charging
and display battery error (Code 8).
Curve
Name of the charging curve.
Capacity
Battery capacity in ampere hours. Minimum allowed capacity is 1
Ah and maximum allowed capacity is 9999 Ah.
Cells
2V battery cell count. Minimum allowed cell count is 1 and
maximum is 999.
Cable Ri
Battery cable resistance, 0–99 mΩ.
Set according to below if original 3 m DC harness is used.
SBS MicroSMART 24/60
10
mΩ
SBS MicroSMART 24/80
7
mΩ
SBS MicroSMART 24/100
5
mΩ
SBS MicroSMART 24/100
5
mΩ
SBS MicroSMART 24/150
4
mΩ
SBS MicroSMART 24/120
4
mΩ
SBS MicroSMART 24/300
2
mΩ
SBS MicroSMART 36/40
10
mΩ
SBS MicroSMART 36/60
10
mΩ
SBS MicroSMART 36/80
7
mΩ
SBS MicroSMART 36/100
5
mΩ
SBS MicroSMART 36/130
4
mΩ
