GE Industrial Solutions Galaxy Vector Rack Mounted Controller J85501M-1 - Manual (Page 60)

Galaxy Rack-Mounted Vector Controller J85501M-1
4 - 14 Installation and Configuration Issue 2 January 2008
Low Voltage
Disconnect
Contactor 1 and 2
Settings
Contactor 1 and 2 Low Voltage Disconnect jumpers: Six
jumpers are associated with the LVD circuitry on the BUJ board:
three of these jumpers J11, J12 and J15 are for LVD1 circuitry
and three jumpers J18, J19, and J20 are for LVD2 circuitry. J11,
J12, J18, and J19 are factory set, but should the BUJ need to be
replaced, these jumper positions should be verified as being set
to the appropriate plant voltage as marked on the PWB (24 or
48V). J15 for LVD1 and J20 for LVD2 are manual LVD force-
on jumpers used when it is required that the contactors remain
closed during service. Return to the Auto position for normal
operation.
Contactor 1 and 2 Low Voltage Disconnect Threshold: The
low voltage at which a signal will be sent to the respective
contactor driver circuit, causing it to open, disconnecting either
the load or the batteries, depending on the contactor’s location in
the circuit.
Contactor 1 and 2 Reconnect Voltage Threshold: This is the
voltage at which a signal will be sent to the respective contactor
driver circuit, to force the contactor to reconnect or close. This
can be used to reconnect either loads or batteries, depending on
the contactor’s configuration within the system.
Contactor 1 and 2 Type: The contactor type defines how the
contactor is used in the system. The type can be set to one of
these three choices:
None no contactor available
Load contactor used for connecting a load
Battery contactor used to connect/disconnect
battery strings
Plant Boost Mode
Settings
The following configuration parameters are settings which are
active anytime the plant is in Boost mode.
System Boost Set-Point: This is the voltage that all system
rectifiers will be set to when the Boost mode is entered.
Rectifier Boost Current Limit: This is the current limit of the
rectifiers while in Boost mode. This current limit is adjustable
from 30% to 110% of rectifier capacity.
High Voltage Boost Threshold: System voltage monitored
above this threshold results in a High Voltage major alarm. The
controller attempts to shutdown the offending rectifiers.