Tyco Electronics Galaxy SC Controller J85501F-1
4 - 24 Configuration Issue 13 February 2001
Note that this field must only be configured when the Shunt Type for the
plant is LOAD or BATTERY. IF SHUNT TYPE is set to NONE, this
field has no function.
SHUNT I: To configure the Plant Current shunt, move the cursor to the
SHUNT I field by using the <UP>/<DOWN>/<LEFT>/<RIGHT>
ARROW key. Use the <+> or <-> key to step through the available
values (50, 100, 150, 200, 300, 400, 600, 800, 1000, 1200, 1300, 2000,
2400, 2600, 3000, 4000, 5000, 5200, 6000, 8000, 10000, 12000). Shunt
ampere value is embossed on the shunt. Select the desired value and
press <ENTER> to save the change.
Note that this field must only be configured when the Shunt Type for the
plant is LOAD or BATTERY. IF SHUNT TYPE is set to NONE, this
field has no function.
SHUNT TYPE: This selection allows the operator to configure the type
of shunt that is connected to the controller via the terminal block.
Possible values are LOAD, BATTERY, or NONE. The configuration is
determined by the plant architecture.
A shunt type of LOAD means that a load shunt is connected in a
centralized architecture. All of the plant load must be directed through
this single shunt and it is wired directly to the shunt terminations of TB1
on the BJF card of the Galaxy. A load type shunt may be located on
either the "ground" side (preferred) or "hot" side of the plant output. The
load current displayed on the front panel is measured directly form the
mV signal across this shunt.
A shunt type of BATTERY means that a battery shunt is connected and
wired directly to the shunt terminations of TB1 on the BJF card of the
Galaxy. This shunt monitors only the charge or discharge current going
into or being provided by the battery it is monitoring. A battery type
shunt is only used in distributed architecture systems with a single
battery shunt to monitor the currents of all the plant batteries. The load
current displayed on the front panel is derived from the battery current
and the total rectifier output current.
A shunt type of NONE is selected for distributed architectures where no
shunt is directly connected to the shunt terminations of TB1 on the BJF
card of the Galaxy. Battery charge and discharge current may be
measured via one or more shunts read by either shunt channels of BIC
cards (GPS systems) or remote peripheral monitoring modules. The load
current displayed on the front panel is derived from the battery current
and the total rectifier output current. Total rectifier output current only
is displayed if there are no battery shunts present.
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