Tyco Galaxy SC Controller User Manual

Tyco Electronics Galaxy SC Controller J85501F-1
4 - 28 Configuration Issue 13 February 2001
High Voltage (HV) threshold: There are two values for this alarm, one
for the FLOAT mode, the other for the BOOST/BTP mode. When the
plant voltage exceeds this threshold, the plant High Voltage Alarm
(HVA) is turned ON, and the rectifier interface will send a signal to the
rectifiers to shut down in an orderly and timely fashion. This will also
light the Major (MJ) Led, and activate the PMJ relay (assuming there is
no alarm with CRITICAL severity level active). Move the cursor to the
fields and use the <+> or <-> key to adjust the High Voltage shut down
alarm for both FLOAT and BOOST mode to the desired level. Press
<ENTER> to save the change.
High Voltage backup threshold: This is a read-only field, the value
display on this field is determined by setting DIP switches SW200 and
SW201 on the BJB board. This value normally is larger than the HV/
FLOAT or HV/BOOST threshold.
High Float Voltage alarm threshold: There are two values for this
alarm, one for the FLOAT mode, the other for the BOOST/BTP mode.
When the plant voltage exceeds this threshold, the plant High Float
Voltage Alarm (HFV) is turned ON, and this will also light the Minor
Led, activate the PMN contact closure (assuming there is no alarm with
CRITICAL or MAJOR severity level active). The purpose of this alarm
is to indicate that the plant voltage is high probably due to an adjustment
in the plant rather than due to a failure. This alarm allows the High
Voltage (HV) shutdown threshold to be raised slightly, thus reducing the
number of nuisance shutdowns without decreasing the plant reliability.
Move the cursor to the fields and use the <+> or <-> key to adjust the
High Voltage shut down alarm for both FLOAT and BOOST mode to
the desired level (normally smaller than the HV threshold). Press
<ENTER> to save the change.
Battery Discharge (BD) alarm threshold: Again, there are two values
for this alarm threshold, one for FLOAT and one for BOOST/BTP
mode. If the plant voltage is smaller than the threshold value, the Battery
Discharge alarm is turned ON, this in turn activates the PMJ and BD
relay, light the MAJ and BD LEDs. Move the cursor to the fields, and
use the <+> or <-> key to adjust the threshold to the desired level. Press
<ENTER> to save the change.
Very Low Voltage alarm threshold: This alarm threshold is used in
the FLOAT mode only. It is used to indicate that the voltage is very low,
and that the battery discharge has occurred to a significant depth. When
the plant voltage falls below this level, the Very Low Voltage (VLV)
and Power Critical alarm will be generated. Move the cursor to the field
and use the <+> or <-> key to adjust the threshold value. Press
<ENTER> to save the change.

Tyco Galaxy SC Controller Specifications

General

Brand	Tyco
Model	Galaxy SC Controller
Category	Controller
Language	English