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10000001_MTS_PWR_MANAGEMENT(Rev7).pptx
(UNCLASS-FOUO) Export Controlled - See Slide 1
1
AFATDS Mobile Tactical Shelter
Power Management
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10000001_MTS_PWR_MANAGEMENT(Rev7).pptx
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Objectives
• Describe the Components of the MTS Power and
Distribution System
• Describe the Three Options for Powering the MTS
• Describe the Electric Circuits inside the MTS
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10000001_MTS_PWR_MANAGEMENT(Rev7).pptx
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POWER SYSTEM COMPONENTS
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10000001_MTS_PWR_MANAGEMENT(Rev7).pptx
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Power Entry Panel (PEP)
The PEP provides a NATO slave cable connector that allows external generator
power to be applied to the shelter.
The shelter grounding screw is located below the slave receptacle
The water-resistant cover (shown rolled) is held in place by magnets inside the
outer seam of the cover.
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10000001_MTS_PWR_MANAGEMENT(Rev7).pptx
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External Power Cables
Generator power cables - issued 1 per shelter
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10000001_MTS_PWR_MANAGEMENT(Rev7).pptx
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External Power Cables
Generator pig tail cable – with aftermarket AC adapter plug (not issued)
15 A / 125 V
Plugs into an AC receptacle and can be attached to the generator extension cable
and into the shelter (PEP)
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Battery Compartment
The battery compartment contains MTS power components:
1. Two batteries that power the shelter when external power is not available.
2. The Outback power inverter. The Outback performs two functions :
A. Conditions incoming AC power to ensure a clean, uniform power source
B. Converts input 24V DC power to 110V AC power when operating from
the MTS batteries or the vehicle’s alternator
3. The Battery Charger Controller
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Battery Compartment (Inside)
3. With external AC generator power
supplied: conditions input 110V AC
power for the MTS PCC, AC1 and AC2
circuits and the AC unit
Outback (Inverter):
1. With vehicle running: converts 24V DC
power from the vehicle alternator to
conditioned AC power for the MTS PCC,
AC1 and AC2 circuits and the AC unit
2. With vehicle not running: converts 24V
DC power from the MTS’ batteries to
conditioned AC power for the MTS PCC,
AC1 and AC2 circuits and the AC unit
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10000001_MTS_PWR_MANAGEMENT(
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Battery Compartment (Inside)
Battery Charger Controller:
1. Automatically combines multiple
batteries (the MTS and vehicle
power) when charging sources
are available.
2. Automatically disconnects the
vehicle battery from system loads
when there is no active charging
source. This ensures that the
vehicle battery is not discharged.
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10000001_MTS_PWR_MANAGEMENT(
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Yellow LED
indicating status
of AC power
Remote Display
Green LED
indicating status
of DC power
from the inverter
AC IN “hotkey”:
displays first of
four AC “hot”
screens
INV “hotkey”:
displays FX
inverter control
screen
“Softkeys”:
Control menu
displayed above
the key
START ASSIST, when
pressed, provides 10
seconds of MTS battery
power to the HMMWV
in the event HMMWV
batteries are unable to
start the vehicle
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10000001_MTS_PWR_MANAGEMENT(
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AC IN Key: AC INPUT CONTROL
The AC INPUT CONTROL is the first screen displayed by pushing the
AC IN hotkey. The display should read currently: USE (#1). If not,
press the key below the USE menu (#2).
1
2
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AC IN Key: GEN START CONTROLLER
This is the second screen displayed by pushing the AC IN hokey. This
function is not used by the MTS power system.
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10000001_MTS_PWR_MANAGEMENT(
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AC IN Key: CHARGER CONTROL
The CHARGER CONTROL enables automatic battery charging, silent, and “re-float”
when an AC input source is connected. The display should read currently: AUTO
(#1). If not, press the key below the AUTO menu (#2).
1
2
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10000001_MTS_PWR_MANAGEMENT(
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AC IN Key: CHARGER MODE
CONTROL
The CHARGER MODE CONTROL enables the remote display to control battery
charging. The menu will display global charger mode. The operator should not
attempt to change any settings on this menu. Press OK to return to the main screen.
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INV Key: INVERTER CONTROL
This screen displays the current setting of the Outback. The status should read
currently: ON (#1). If not, press the key below the ON menu (#2). If the status is
OFF the Outback will not operate.
1
2
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If the Outback is “off” the
following circuits are still available
• The PCC power circuit provides power(from the MTS
batteries or and the vehicle power system (if the vehicle is
running))
• The shelter DC power (operating the lights and fans
• Radio DC power circuit
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MAIN menu
The operator can access the current status of the battery system from the main menu
by pressing the button under the SUM menu (#1)
1
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Summary
The summary displays the following:
Activity: Support, Pass Thru or Charging
Support: Internal battery draw
AC Load: the load on the electrical system in watts
Buying: the externally supplied power in watts
Pressing either hotkey and OK returns the display to the main menu.
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Warning
• The Remote Display has a number of menus and functions
not covered in this class
• Operators must not make changes to any menu not
described in these classes
• Failure to follow this warning will result in power failures
within the MTS
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Power Distribution Panel
The Power Distribution
Unit (PDU) acts as a hub
that distributes power to
equipment via the
raceways inside the shelter.
The PDU provides circuit
breakers that control power
to any circuit or
combinations of circuits
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10000001_MTS_PWR_MANAGEMENT(
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Circuit Breaker Mapping: CB1 – CB8
Circuit Breaker
Controls:
CB1
Breaks incoming power from the MTS battery
CB2
Breaks all power to the shelter interior; Outback is still
powered
CB3
Breaks DC power output to the PCC
CB4
Breaks DC power output to the SINCGARS 1 outlet on the
Front Wall AC/DC Power Race
CB5
Breaks DC power output to the SINCGARS 2 outlet on the
Front Wall AC/DC Power Race
CB6
Breaks DC power output to the SINCGARS 3 outlet on the
Front Wall AC/DC Power Race
CB7
Breaks DC power output to the SINCGARS 4 outlet on the
Front Wall AC/DC Power Race
CB8
Breaks DC power output to the EPLRS 1 outlet on the Front
Wall AC/DC Power Race
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Circuit Breaker Mapping: CB9 – CB19
Circuit Breaker
Controls:
CB9
Breaks DC power output to the EPLRS 2 outlet on the Front
Wall AC/DC Power Race
CB10
Breaks power to the internal MTS lighting
CB11
Breaks power to the MTS ventilation fans
CB12
Breaks input power from an external AC power source
CB13
Breaks input power from the power inverter (main AC power
to shelter)
CB14
Breaks AC power to the PCC
CB15
Breaks AC power from the PCC
CB16
Breaks output power to the AC1 outlets throughout the MTS
CB17
Breaks output power to the AC2 outlets throughout the MTS
CB18
Breaks output power to the Air Conditioner
CB19
Breaks10000001_MTS_PWR_MANAGEMENT(
input power from the HMMWV batteries
24 Oct 2011
Rev7).pptx (UNCLASS-FOUO) Export
Controlled - See Slide 1
23
Power Conditioner/Converter
The Power
Conditioner/Converter
1. Receives incoming
AC power from the
Outback and outputs
conditioned AC power
to the PCC circuit
2. Or, receives DC
power from the
HMMWV or MTS
batteries controlled by
the battery charger
controller and outputs
conditioned AC power
to the PCC circuit
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Controlled - See Slide 1
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DESCRIBE THE ELECTRIC CIRCUITS
INSIDE THE MTS
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Internal MTS Power
110V AC via
CB15
110V AC
from CB14
110V AC via
CB16
PCC
Circuit
AC1
Circuit
110V AC via
CB17
110V AC to CB13
AC2
Circuit
The Inverter converts 24V
DC power to 110V AC
24 Oct 2011
MTS batteries provide power
that is monitored by the
1 Power Supply (Inverter)
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External HMMWV Power
110V AC via
CB15
110V AC
from CB14
110V AC via
CB16
PCC
Circuit
AC1
Circuit
1
110V AC via
CB17
110V AC to CB13
3
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AC2
Circuit
Vehicle alternator charges
HMMWV system with 24V
DC power
2
Battery Charger
Controller links
HMMWV power to
the MTS
The Inverter converts 24V
DC power to 110V AC
CB19
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Incoming Power: Generator
110V AC via
CB15
110V AC
from CB14
110V AC via
CB16
PCC
Circuit
AC1
Circuit
110V AC via
CB17
AC2
Circuit
110V AC to CB13
3
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1
2
115V AC
from
generator
115V
AC to
CB12
BCC provides
connection from
MTS to the vehicle
to charge batteries
The Inverter conditions
incoming power
10000001_MTS_PWR_MANAGEMENT(
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Controlled - See Slide 1
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Internal Power Circuits
PCC AC POWER RACES
AND OUTLETS
110V AC
from CB18
110 AC from
PCC via CB15
110V AC
from CB16
110V AC
from CB17
24V DC
from CB10
MTS
LIGHTS
24V DC from CB4
24V DC from CB5
24V DC from CB6
24V DC from CB7
24V DC from CB8
AC1 POWER RACES
AND OUTLETS
AC2 POWER RACES
AND OUTLETS
DC TO SINCGARS 1
DC TO SINCGARS 2
DC TO SINCGARS 3
DC TO SINCGARS 4
DC TO EPLRS 1
DC TO EPLRS 2
24V DC from CB9
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110V AC OUTLETS
• PCC outlets
– Provide conditioned power from the AFATDS PCC
• These are the preferred outlets for the AFATDS computers
• AC1
– Provides power from AC source to one of two circuits powered by
the Inverter
• This circuit is not available if the Inverter fails
• AC2
– Provides power from AC source to one of two circuits powered by
the Inverter
• This circuit is not available if the Inverter fails
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Degraded Power Operations
AC1
Circuit
No Input
AC2
Circuit
1
No Input
Vehicle alternator
charges HMMWV
system with 24V DC
power
PCC
Circuit
110V AC via
CB15
2
Battery Charger
Controller links
HMMWV power
to the MTS
CB19
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What is lost in Degraded Power
Operations?
• AC1 power circuit
• AC2 power circuit
• Air Conditioning unit operated from a separate
circuit controlled via CB18
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Summary
• Describe the Components of the MTS Power and
Distribution System
• Describe the Three Options for Powering the MTS
• Describe the Electric Circuits inside the MTS
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