Mean Well HEP-2300 Series, Installation Manual, Page: 19 / 42

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5.9 Auxiliary Output
●
Built-in 12V/0.5A auxiliary output.
Figure 5 8 -
+12V-AUX to GND-AUX 12Vdc
5.10 Charging (Only 55V model has built-in charging function,
the other models with higher output voltage need to
cooperate with BMS for charging)
●
HEP-2300 adopts both 2 and 3 stage charging curves for selection. 2
stage is for easy and fast charging. 3 stage will go into float mode after
the battery is fully charged. Users can choose between 2 or 3 stage
according to the demand.
5.8 DC-OK Signal
●
Built-in DC output voltage detection circuit.
●
Maximum output current 10mA.
Figure 5 7 -
DC-OK to GND-AUX Condition
4.5 – 5.5V DC OK
-0.5 – 2.5V Abnormal DC
PIN9 & 10 GND-AUX
PIN5 DC OK & 6
CN11
5
PIN9 & 10 GND-AUX
PIN7 +12V-AUX & 8
CN11
32
Explanation of 2 stage charging curve
Initial stage (battery analysis) ：
Charger will detect and determine whether the battery is properly
connected or it is already fully charged.
Stage 1 (Constant current) ：
Maximum constant current is applied for fast charging, until the
voltage of battery reaches to boost voltage.
Stage 2 (Constant voltage) ：
In this stage, charger applies a constant voltage on the battery.
Charging current decreases gradually and then shuts down when
charging current to 10% of rated current. drops
Suitable for lead-acid batteries, such as flooded water type, Gel
colloid type, AGM adsorption glass fiber and lithium batteries, such
,
as lithium iron, lithium manganese, ternary lithium.
- -
1
2
3
*
State
Constant Current
V
boost
HEP-2300-55
40A
57.6V
Charge
Current
stage 1
Constant
Current Constant
Voltage
stage 2 Battery Full
Start
Charge
Voltage
100%
10%
V
boost
Orange Green
Color of LED
Loading Indicator
5
In the initial stage of charging, the charger charges the battery
with the maximum current. After a period of time (depending on
the battery capacity), the charging current decreases gradually.
When the charging current drops to 10% of the rated current. LED
indicator lights up in green, indicating that the charging process
is complete.
5. .1 10 2 stage charging