GE Industrial Solutions Galaxy Pulsar Edge - Manual (Page 85)

Galaxy Pulsar Edge Power System Controller
Issue 3 October 2011
85
(DCN01-DCN08)
By default, these contactor controls are: LVBD (Low Voltage Battery
Disconnect), LVLD1 (Low Voltage Load Disconnect 1), LVLD2
(Low Voltage Load Disconnect 2), and LVLD3 (Low Voltage Load
Disconnect 3).
The Pulsar Edge has assigned each unique board ID number as follows: ID1 to LVBD, ID2 to
LVLD1, ID3 to LVLD2, and ID4 to LVLD3. Note: the text description used for the disconnect,
such as “LVLD1”, can be renamed through the remote interfaces. Each of these assignments has
its own unique programmable parameters described next. ID5 to ID8 have been assigned as
NONE. Selecting NONE removes the ability of that particular distribution control board to
control and external LVD.
Another part of the configuration is the parameters associated with the individual function
assignments made in the previous section. Each LVD type (LVBD and LVLD1-3) can
individually be enabled or disabled. Only the LVBD and LVLD1 are Enabled in standard
controllers shipped from the factory. The LVD’s disconnect and reconnect method of operation
used by the controller can be configured for each assignment. The method of disconnect or
reconnect can be based on the traditional means of reaching a system bus voltage threshold
(Voltage) or based on both reaching the system bus voltage threshold and an elapsed time from
once the system has been placed on discharge (BD) and at least two or more rectifiers are
reporting AC failures (Voltage/Time). The same Voltage and Voltage/Time mode of operation
can also be selected for reconnecting LVDs. In this case the elapsed time configured is the time
from once the reconnect voltage threshold has been reached. Note: selecting None for a reconnect
mode will require manual intervention to shut the contactor. Selecting None for the disconnect
mode will not allow a LVD to open. The Pulsar Edge has factory defaults of the following:
LVBD (Enabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage/Time, None
Disconnect Voltage (-42.0V);Range:-39.0 to -50.0V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage); Range: Voltage, Voltage/Time, None
Reconnect Voltage (-48.0V); Range:-39.0 to -55.0V
Time Delay (0 sec); Range: 0-300sec
LVLD1 (Enabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage/Time, None
Disconnect Voltage (-42.0V); Range:-39.0 to -50.0V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage); Range: Voltage, Voltage/Time, None
Reconnect Voltage (-44.0V); Range: 39.0 to -55.0V
Time Delay (0 sec); Range: 0-300sec
LVLD2 (Disabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage/Time, None
Disconnect Voltage (-42.0V); Range:-39.0 to -50.0V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage/Time); Range: Voltage, Voltage/Time, None
Reconnect Voltage (-44.0V); Range: 39.0 to -55.0V
Time Delay (30 sec); Range: 0-300sec