Power Supply - Panasonic Strata Se General Description Manual

INSTALLATION INSTRUCTIONS
SECTION 500-036-200
JANUARY 1988
Nominal Range
+24
t23 - t29
t12 t10.8 - t13.2
+5
t4.75
- 6.25
7)
If the voltages-are correct, go to step 8. If not,
replace the power supply and recheck volt-
ages.
8) Turn
OFF
the power.
9) Connect the power supply cable connector
back to
Pl
on the VMAU PCB.
10) Reinstall the HKSU cover, and turn the
power back ON.
04.15 Optional power backup units are avail-
able for both systems:
l
Se: HPFB
l
Vie: HPBU-7
STRATA Se:
The HPFB is a separate unit that connects to the
left side panel of the HKSU via a 2-wire connec-
tor (Figure 4).
l
Up to three HPFB modules may be con-
nected together in parallel to extend the
power backup time. With the optional battery
backup assembly installed, the system will
continue to operate after a facilities power
failure. The actual time period depends on
the system configuration/application and
number of battery backup modules used.
FIGURE 4-HPFB INSTALLATION
-4-
STRATA We:
The HPBU-7 is a PCB that mounts inside the
power supply housing (Figure 5) and is con-
nected to the female 3-prong connector inside
the power supply's case. Secure the HPBU with
the two provided screws.
l
The HPBU is then connected via the terminal
block to the recommended battery pack
(which is customer-supplied, consisting of
two 12 VDC, maintenance-free, automobile-
type batteries-80 amp/hour maximum rat-
ing). With the battery backup assembly in-
stalled, all functions of the system will
continue to operate for several hours after
a facilities power failure (the actual time pe-
riod is in direct ratio to the type and size of
batteries selected).
FIGURE 5-HPBU INSTALLATION
04.16 When installing or removing the HPBU,
perform the following:
WARNING!
When installing the HPBU-7 in the power
supply, care must be taken against acci-
dental shorts that may injure the installer
or damage the power supply.
1) Turn
OFF
the power and
unplug
the system
power cord.
2) Remove the front cover from the HKSl'
3) Remove the metal plate on the left c
the power supply case (two screws'