afatds mobile tactical shelter

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24 Oct 2011 10000001_MTS_PWR_MANAGEMENT(Rev7).pptx (UNCLASS-FOUO) Export Controlled - See Slide 1

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AFATDS Mobile Tactical Shelter

Power Management


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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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POWER SYSTEM COMPONENTS


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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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External Power Cables


Generator power cables - issued 1 per shelter

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External Power Cables


Generator pig tail cable – with aftermarket AC adapter plug (not issued)

Plugs into an AC receptacle and can be attached to the generator extension cable and into the shelter (PEP)

15 A / 125 V

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Battery Compartment

24 Oct 201110000001_MTS_PWR_MANAGEMENT(

Rev7).pptx (UNCLASS-FOUO) Export Controlled - See Slide 1

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 sourceB. Converts input 24V DC power to 110V AC power when operating from

the MTS batteries or the vehicle’s alternator3. The Battery Charger Controller

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Battery Compartment (Inside)



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

3. With external AC generator power supplied: conditions input 110V AC power for the MTS PCC, AC1 and AC2 circuits and the AC unit

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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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Remote Display



AC IN “hotkey”: displays first of four AC “hot”

screens

INV “hotkey”: displays FX

inverter control screen

Yellow LED indicating status

of AC power

Green LED indicating status

of DC power from the inverter

“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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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).

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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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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).

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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.

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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)

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Summary



The summary displays the following:Activity: Support, Pass Thru or Charging

Support: Internal battery drawAC 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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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




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 Breaks input power from the HMMWV batteries

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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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DESCRIBE THE ELECTRIC CIRCUITS INSIDE THE MTS



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Internal MTS Power



MTS batteries provide power that is monitored by the Power Supply (Inverter)1

The Inverter converts 24V DC power to 110V AC

2

110V AC to CB13

110V AC from CB14

PCC Circuit

AC1 Circuit

AC2 Circuit

110V AC via CB15

110V AC via CB16

110V AC via CB17

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External HMMWV Power



Vehicle alternator charges HMMWV system with 24V

DC power1

Battery Charger Controller links HMMWV power to the MTS2

The Inverter converts 24V DC power to 110V AC

3 CB19

110V AC to CB13

110V AC from CB14

PCC Circuit

AC1 Circuit

AC2 Circuit

110V AC via CB15

110V AC via CB16

110V AC via CB17

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Incoming Power: Generator



BCC provides connection from

MTS to the vehicle to charge batteries

The Inverter conditions incoming power

115V AC to CB12

115V AC from

generator1

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3

110V AC to CB13

110V AC from CB14

PCC Circuit

AC1 Circuit

AC2 Circuit

110V AC via CB15

110V AC via CB16

110V AC via CB17

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Internal Power Circuits



PCC AC POWER RACES AND OUTLETS

AC1 POWER RACES AND OUTLETS

AC2 POWER RACES AND OUTLETS

110V AC from CB17

110 AC from PCC via CB15

24V DC from CB4 24V DC from CB5 24V DC from CB6 24V DC from CB7 24V DC from CB8

110V AC from CB16

24V DC from CB9

DC TO SINCGARS 1DC TO SINCGARS 2DC TO SINCGARS 3DC TO SINCGARS 4

DC TO EPLRS 1DC TO EPLRS 2

110V AC from CB18

MTS LIGHTS

24V DC from CB10

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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

AC2 CircuitNo Input

No Input

PCC Circuit

110V AC via CB15

Vehicle alternator charges HMMWV

system with 24V DC power

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Battery Charger Controller links HMMWV power to the MTS

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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


afatds mobile tactical shelter

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