ABB CPS6000 Product Manual page 114

Contactors
The controller monitors external control boards that can be assigned to LVD contactor control by
appropriately configuring a unique board ID to a specific contactor function. The QS841A can assign up
to six IDs to boards used for controlling LVDs. Each unique ID number can be assigned to one of the
following LVBD 1 (Low Voltage Battery Disconnect 1), LVLD1 (Low Voltage Load Disconnect 1), LVLD2
(Low Voltage Load Disconnect 2), LVLD3 (Low Voltage Load Disconnect 3), or NONE. Each of these
assignments has its own unique programmable parameters. Selecting NONE removes the ability of
that particular QS871A to control and external LVD.
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 defaults 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
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