Emerson 48330 user manual Charging management parameter value description

Chapter 5 Operating SCU 59

Table 5-12 Charging management parameter value description

Parameter		Range		Default		Value description
Float				53.5V		In the FC state, all rectifiers output
						voltage according to the set “Float”	The “Boost” must be
		42V ~ 58V
							higher than the “Float”
Boost				56.4V		In the BC state, all rectifiers output
						voltage according to the set “Boost”
						When the monitoring module detects that the battery charging
Limit (current						current is higher than the “Limit”, it will control the current of the
		0.1 ~ 0.25C10		0.1C10		rectifiers, through which it can limit the battery charging current.
limit)
						C10 is the battery rated capacity, generally set to 10 ~ 20% of the
						rated capacity of one battery string.
Over (over current						When the monitoring module detects that the battery charging
		0.3C10 ~ 1.0C10		0.300C10		current is higher than the “Over”, it will raise the battery charge
point)						over-current alarm.
Automatic Boost		Yes, No		Y	Select “Y”, and BC will be conducted when conditions allow
Cyclic Boost						Select “Y”, and the monitoring module will control the system to
Cyclic Boost		48 ~ 8760h		2400h		enter the Cyclic Boost when the FC time reaches the “Cyclic Boost
Interval						Interval”. The battery charging voltage is the preset “Boost”, and
						the time is the preset “Cyclic Boost Time”
Cyclic Boost Time	30 ~ 2880min			720min
To Boost Current	0.50 ~ 0.80C10			0.06C10		The monitoring module will control the system enter the BC state
To Boost						when the battery capacity decreases to the value of “To Boost
	0.1 ~ 0.95		0.80			Capacity”, or when the charge current reaches the “To Boost
Capacity
						Current”. The charge voltage will be the “Boost”.
Constant BC Curr		0.02 ~ 0.99C10		0.01C10		The system in the BC state will enter the FC state when the charge
Duration (of		30 ~ 1440min		180min		current decreases to the “Constant BC Curr” and after the
constant BC)						“Duration”. The battery charge voltage then will be the “Float”.
						To ensure safety, the monitoring module will forcefully control the
Boost Limit	60 ~ 2880min			1080min		system to enter the FC state if during the BC state, the BC time
						reaches the “Boost Limit”, or abnormalities occur (such as AC
						failure and battery route faulty, etc.).

3. The BC/FC switchover diagram is shown below:

FC time longer than "Scheduled BC Interval"

Battery charge current bigger than "To BC Current"

Battery capacity smaller than "To BC Capacity"

FC			BC
	Constant BC		Charge current
			smaller than
	time-up
		Constant	"Constant BC
			Curr"
		BC

BC time longer than "BC LVD Time"

Abnormal situation

Figure 5-2 BC/FC switchover diagram

ACTURA Flex 48330 Power System User Manual