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ELECTRICAL
Service Type
•
No Service: PCS has 12V Battery power to run
the electronics, however, it does not sense any
120/240VAC Power.
•
50-amp Service: PCS senses 240/208VAC between
L1 and L2 to determine this mode of operation.
PCS controls the loads so that the current does not
exceed L1 limit of 50amps, L2 limit of 50amps, and a
combined limit of 100 amps.
•
30-amp Service: PCS senses 0VAC between L1 and
L2. PCS adds the current of the two sensors and
controls the loads so that the current does not exceed
30 amps.
•
20-amp Service: PCS senses 0VAC between L1 and
L2, and the owner selects 20A on the Central Monitor
Panel. PCS adds the current of the two sensors and
controls the loads so that the current does not exceed
20 amps.
•
Generator: PCS senses power to the Gen Hour Meter
to determine this mode of operation. PCS controls
the loads so that the current does not exceed the
ratings of the installed Generator, for example L1 limit
of 35amps, L2 limit of 35amps, and a combined Limit
of 63 amps.
Monitor Panel
This article provides basic operation instructions for a Precision Circuits Power Control System Monitor Panel (Model: 00-
10019-050).
Precision Circuits Power Control System Monitor
Panel Operation (Model: 00-10019-050)
The PCS Monitor displays pertinent Power Control System
status information. The UP and DOWN buttons are used
to step through each individual Screen of information.
Pressing & releasing either the UP or Down button will
step to either the Previous or Next Display Screen. Once
all the Screens have been seen, the next press of the
Button will wrap back around through all the Display
Screens once again. The SET Button only functions when
the Service Type screen is displayed, to Select between
30A Service and 20A Service.
(Note: 50A Service or Generator Service overrides the
SET Button.) If there have not been any key presses for
awhile, the PCS monitor turns off the backlighting to save
on power. The first press of any key will only turn on the
back lighting.
Operation Mode
This Screen gives the general information about Load
Status.
The First Line shows the Status of the Magnum Battery
Charger. It will either be: Bat Charge Normal, under
complete Magnum Control, or Bat Charge Reduced, which
means an Owner activated appliance would have caused
a circuit breaker to trip but instead the Bat Charger Rate
has been reduced. Reducing the Battery will be the 1st
thing that PCS will attempt in order to reduce overall RV
Power. Battery Charge may not be reduced if the Battery
is Low, or the Magnum Inverter is on Line 1 Circuit Breaker
and the Overload is on Line 2 only.
•
The Second Line show the Status of the Magnum
Inverter. It will either show Inverter Normal, under
complete Magnum Control.
•
Inverter Assist, PCS is requesting that the Magnum
Inverter assist by temporarily generating 120VAC
power from the batteries.
•
Inverter Assist 12A, the end of this line shows
the amount of 120VAC current that the Inverter is
supplying.
•
Inverter Assist Deny, means the Magnum Inverter
can not Assist at this time, for one of many Magnum
Inverter reasons, i.e. Battery Low, Over-current, etc.
(See Magnum Owner’s Manual).
•
The Last Line shows if any Loads have been Shed
to prevent circuit breaker tripping. Load(s) Shed = 7,
depending on the model RV, there can be up to 7
Loads that PCS can control.
Line Status
PCS not only monitors total RV current but also has two
built in Volt Meters, and monitors the voltage on each of
the Lines.
L1 121Volts 15Amps, indicates that Line 1 has 121 Voltsrms
and is presently drawing 15 amps.
! Brown Out !, if the display indicates Brown Out, the
Display will hold the lowest captured voltage that may
have occurred while the RV owner is away. Pressing any
switch clears the display, and resumes displaying the
present readings.
Wiring Status
Similar to an Outlet Tester that is plugged into outlets in
your home to test for proper wiring, PCS monitors the
wiring status of the Camp Ground Outlets you may plug
into.
Summary of Contents for Bay Star 2022
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