Tyco Electronics Galaxy SC Controller J85501F-1
3 - 52 Installation Issue 13 February 2001
TB3-32/48 OPT1/OPT2
Reserved for future use.
External Boost A variety of external devices may be used to initiate boost in Galaxy.
Wiring is required from BJT TB3-23/24/39 as shown in Figure 3-16 for
operation of this feature. In addition, BJB SW202-2 and SW202-3 must
be enabled (see Table 3-D) and the connected rectifiers must be capable
of accepting the boost signal from Galaxy. Tyco Electronics rectifiers
which presently accept boost include J85502C1 (125A), J85503B2
(200A), J85503C2/3 (400A), J85603C2 (400A), J85702E1 (SR150A),
SR50, and SR100 plus all serial interface rectifiers. When setting up
boost, it is also necessary to properly set each rectifier boost volts
adjustment potentiometer for the boost voltage level desired. Refer to
the appropriate Rectifier Product Manual for additional instruction in
this area. Boost mode use also requires that the HV and HFV Boost
Thresholds in Galaxy be configured above the desired boost voltage
level to avoid nuisance alarms and shutdowns while operating in boost
mode.
Battery Thermal
Protection
Battery Thermal Protection (BTP) modules (J85501X1 L-K1, J2 or K3)
may be used with Galaxy to aid in the prevention of thermal runaway in
valve regulated battery reserve systems. Refer to the BTP product
manuals for information on the installation of J85501X1 BTP modules
and Figure 3-17 for their connection into the Galaxy BJT TB3. Note that
the resistors are not to be mounted in the first BTP module when it is
used with a Galaxy controller.
The BTP feature utilizes the “boost” feature in reverse to lower plant
voltage whenever battery temperature increases above a set point.
Therefore rectifiers used in plants with BTP enabled must be capable of
Figure 3-16: Wiring for External Boost Option
TRTN
TFLT
TBST
24
39
23
TB3
Galaxy BJT
Alarm Board
External Boost/Float Unit
Typical Connection is Battery
Switch Bay H569-418, T83207-30
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