Emerson 48330 user manual Charging management parameter value description

Chapter 5 Operating SCU

59

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.).

FC

BC

Constant BC

Charge current

smaller than

time-up

Constant

"Constant BC

Curr"

BC