GE Industrial Solutions CPS6000 - Manual (Page 125)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
125
Disconnects
This section of the configuration menu contains 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. The contactor’s disconnect and reconnect method of
operation used by the controller can be programmed for each LVD. The method of disconnect
or reconnect can be based on 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 Voltage and 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.
Disconnects are not used in the CPS6000-L.
Thus, the factory default s are the following:
• LVBD (Enabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage+Time
Disconnect Voltage (42.0V); Range: 39-50V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage); Range: Voltage, Voltage+Time
Reconnect Voltage (44.0V); Range: 39-55V
Time Delay (0 sec); Range: 0-300sec
• LVLD1 (Enabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage+Time
Disconnect Voltage (42.0V); Range: 39-50V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage); Range: Voltage, Voltage+Time
Reconnect Voltage (44.0V); Range: 39-55V
Time Delay (0 sec); Range: 0-300sec
• LVLD2 (Disabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage+Time
Disconnect Voltage (42.0V); Range: 39-50V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage); Range: Voltage, Voltage+Time
Reconnect Voltage (44.0V); Range: 39-55V
Time Delay (0 sec); Range: 0-300sec
• LVLD3 (Disabled)
Disconnect Mode (Voltage); Range: Voltage, Voltage+Time
Disconnect Voltage (42.0V); Range: 39-50V
Time Delay (0 min); Range: 0-300min
Reconnect Mode (Voltage); Range: Voltage, Voltage+Time
Reconnect Voltage (44.0V); Range: 39-55V
Time Delay (0 sec); Range: 0-300sec
Imminent Shutdown Alarm
The Imminent Shutdown Alarm is generated prior to opening the LVBD. Once the LVBD
threshold has occurs, alarm is generated 15 seconds prior to opening the contactor to provide
an indication that system shutdown is imminent due to a system battery disconnect. The
alarm is based on the configured LVBD battery disconnect threshold.