Samlexpower SEC-1280UL Guide D'utilisation page 23

SECTION 7 |
• 2-Stage Charging Algorithm: Bulk Stage " Float Stage. When 2-Stage Charging
Algorithm is selected, the Absorption Stage of the 3-Stage Charging Algorithm is
bypassed. This algorithm is suitable for operation as a Power Supply (Section 8.3) or as
a DC UPS (Uninterruptible Power Supply) in conjunction with a battery (Section 8.4)
DIP Switches "S1" and "S2" (7 in Fig 3) are used to select (i) either 3-Stage or 2-Stage
charging and (ii) the type of battery and associated Absorption Voltage level. For selec-
tions, refer to Table 7.1 for SEC-1280UL and Table 7.2 for SEC-2440UL
3-Stage charging is recommended when charging from (i) 1 Bank or, (ii) from 2 Banks
simultaneously (provided the batteries in the 2 banks are in similar state of charge)
2-Stage charging (DIP Switches "S1" and "S2" are both in OFF condition) is recommend-
ed under the following conditions:
• The charger is being used as a Power Supply (Section 8.3) OR,
• The charger is being used as a DC UPS (Uninterruptible Power Supply) in
conjunction with a battery (Section 8.4)
!
CAUTION!
Do not change the DIP Switch setting when the charger is operating. Always
change the DIP Switch setting when the charger is OFF, i.e. after disconnecting
the charger from the AC input power).
NOTE: The voltages are for battery temperature of 77ºF / 25ºC.
Table 7.1 DIP Switch Settings for DIP Switches S1 & S2 (7 in Fig 3): SEC-1280UL
DIP DIP
Switch S1 Switch S2
OFF* ON*
ON OFF
OFF OFF
ON ON
* Factory pre-set in this position
Preparing the Charger for Operation
Float
13.5V*
13.5V
13.5V
Absorption Type/ Usage
Flooded /
14.4V*
14.0V
Charger is
used as Power
Disabled
Supply or DC
Caution! Do NOT use this setting
Battery Charging
Stages
3 Stages
AGM* (Stages 1, 2, 3)
3 Stages
Gel Cell
(Stages 1, 2, 3)
2 Stages
(Stages 1, 3)
UPS
SAMLEX AMERICA INC. | 23