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Section 4. Web Server Interface
4.20 Menu Items: Configuration- Operate Set
(see Figure 16a)
The
Configuration- Operate Set
page allows user-configurable settings for the following items:
➢
Charge Mode
has 3 settings:
•
Auto
-Automatic Charge mode driven by an algorithm with critical user-configurable
setpoints that are within this System Operation page, including EQ Voltage, EQ
Charge current, EQ End current, EQ End Time, and FL Voltage.
•
Manual FL
–
this setting forces the Shelf into
Float Charge
mode; DC Bus will stay at the
FL Voltage
setpoint until taken out of this mode of operation.
•
Manual EQ
-
–
this setting forces the Shelf into
EQ Charge
mode; DC Bus will stay at the
EQ Voltage
setpoint until taken out of this mode of operation.
➢
FL Voltage
–set to the battery manufacturer’s recommended Float voltage, which is a value
also stated as Volts-Per-Cell (VPC) recommendations. The 54.0V factory setting is based on a
48V VRLA battery string (24-cell) 2.25 VPC charge-rate.
This FL Voltage setting must always be
at least 0.5V lower than the DC High Voltage Protection setting.
➢
EQ Voltage
–
this is the EQ (Boost) Charge voltage setpoint best determined by the battery
manufacturer datasheet Volts-Per-Cell (VPC) recommendations. The 57.6V factory setting is
based on a 48V VRLA battery string (24-cell) 2.40 VPC charge-rate.
This EQ Voltage setting
must always be at least 0.5V lower than the DC High Voltage Protection setting.
➢
Charge HIGH Temperature
-maximum ambient temperature allowed for EQ Charge mode.
➢
Battery Capacity (Ah)
–
setpoint is based on the rated Ah capacity of a single 48V battery
string.
➢
Charge Current Limit
- any charge current up to the maximum safe limit, based on battery
manufacturer maximum charge current recommendations.
➢
EQ Charge Current
–
In
Auto
Charge mode, this value is the minimum current that will force
boost charge by entering
EQ Charge
(Bus Voltage = EQ Voltage, with Charge Current Limit)
➢
EQ End Current
–
In
Auto
Charge mode, this value is the charge current setting that allows a
transition from Boost Charge back to Float Charge but only after the
EQ End Time
setpoint.
➢
EQ End Time
- In
Auto
Charge mode, this value is the time period that the battery charge
current must stay ≤ EQ Charge to allow a transition from Boost Charge back
to Float Charge.
➢
EQ Period
–
time period between the start of each automatic
EQ Charge
process.
➢
Sound Alarm ON/OFF
–
allows the Audible Alarm to be turned ON or OFF.
➢
AC Input Phase Select
-allows the AC Input setting for either 1Phase or 3Phase.
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