3 About Power System Configuration
28
User's Guide
Smartpack2 Master Controller
350020.013, Issue 2.0, 2014 Jan
(a)
Manual Reset
The DC power system can be configured with
automatic
or
manual
alarm reset.
When
Manual Alarm Reset
is enabled -- and the alarm condition no longer
exists -- the operator
must reset the alarm manually
, via the power systems
user interface (web GUI or controller’s front keys).
When the Manual Alarm Reset is disabled, then the
Automatic Alarm Reset
is
enabled (default). In this case, when an alarm condition no longer exists, the
main controller will automatically reset the alarm
, by deactivating the alarm
lamps and relays to indicate that normal operation is established.
(b)
Hysteresis and Time Delay
Read also topic “
Alarm Monitors
” on page 23
(c)
Mains Independent
Check this option if you want that the LVD alarm monitor will reconnect the
LVD contactor when the rectifier system output voltage reaches the Reconnect
Voltage limit, regardless whether Mains is ON or OFF. For example, this is
possible using an additional primary supply.
Uncheck this option (Mains dependent) if you want that the LVD alarm
monitor will NOT reconnect the LVD contactor until Mains is ON again.
(d)
Temperature Dependent
Used with LVD contactors that disconnect the battery bank (LVBD). Check
this option if you want that the LVD alarm monitor will reconnect the LVBD
contactor when the battery temperature is lower than the temperature limit
configured in the “BatteryTemp” alarm monitor.
(e)
Disconnect Voltage
Enter a numeric value for the battery voltage drop-down limit. When -- after a
Mains failure -- the battery voltage gradually drops down to this limit; then the
alarm monitor raises the alarm and trips the LVD contactor.
(f)
Reconnect Voltage
Enter a numeric value for the battery voltage reconnection limit. When the
Mains supply is ON again, the rectifier system output voltage increases to this
limit; then the alarm monitor will reconnect the LVD contactor.
(g)
Delay Time after Disconnect
Enter the Time delay or number of seconds the LVD contactor has to be tripped
or disconnected, before the alarm monitor is allowed to reconnect the LVD
contactor
Alarm Output Groups
An Alarm Output Group (AOG) is a
user defined software assignment
that consists of
grouping together all the
outputs
that
always are activated at the same time
.
The outputs -- alarm relay outputs and or latching contactors (LVLD and LVBD) – are
distributed among the power system’s controllers and control units.
Summary of Contents for Smartpack2
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