SynQor MINV-4000-270 Series User manual

Military Grade Power inverter
MINV-4000-270
1.888.567.9596 (USA only) |SynQor Headquarters 155 Swanson Road, Boxborough, MA 01719-1316 USA |www.synqor.com
Made in USA
N+M REDUNDANCY
(optional)
Operator’s Guide
MINV-4000-270 Series

006-0007361 12/08/2022 Rev A II MINV-4000-270 Guide www.synqor.com
Table of Contents
S I W
Hazardous Voltages...................................................................................................................................................... 1
Hazardous Energies ..................................................................................................................................................... 2
Protection from the Environment............................................................................................................................ 2
User Serviceable Parts................................................................................................................................................. 2
S II G P I
Product Description ..................................................................................................................................................... 3
Product Topology .......................................................................................................................................................... 4
Part Numbering Scheme and Options................................................................................................................... 5
Product Specications ................................................................................................................................................ 6
Technical Specications............................................................................................................................................. 7
1U Mechanical Diagram ............................................................................................................................................ 8
Eciency.......................................................................................................................................................................... 9
Total Output Power ...................................................................................................................................................... 9
Temperature Derating...............................................................................................................................................10
Power Cable Wiring Diagram.................................................................................................................................10
S III O
Set-Up ..............................................................................................................................................................................11
Start-Up ..........................................................................................................................................................................11
Shut-Down.....................................................................................................................................................................11
Power Cable Connections.........................................................................................................................................12
Programming e Output........................................................................................................................................12
Cooling System .............................................................................................................................................................13
Front Panel Indicators ..............................................................................................................................................14
Audible alarm......................................................................................................................................................16
Operating Environment............................................................................................................................................17

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General Considerations ............................................................................................................................................18
Expanded Paralleling -F Option ...........................................................................................................................19
Redundant Paralleling -R Option..........................................................................................................................20
Possible congurations of the AC OUTPUTs .....................................................................................................21
Parallel Connection of the AC Outputs................................................................................................................24
Series Split-Phase Connection of AC Outputs ..................................................................................................26
Series 3-Phase Connection of AC Outputs .........................................................................................................27
Connecting DC Inputs ...............................................................................................................................................28
Wiring Caution ............................................................................................................................................................28
S V C I D
Control Cable Connections......................................................................................................................................29
Internal User I/O Circuits ................................................................................................................................30
Remote On/O Switch Connections.............................................................................................................30
Digital Input/Output Control Signals ..................................................................................................................31
Ethernet Interface .......................................................................................................................................................31
RS-232 Serial Interface..............................................................................................................................................32
S VI M
Fans..................................................................................................................................................................................33
Cleaning..........................................................................................................................................................................33
S VII T-S G
Fault Conditions..........................................................................................................................................................34

Section I Warnings
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S I W
Hazardous Voltages
The INPUT AND OUTPUT POWER connectors and cables of the SynQor MINV-4000-270 may
have voltages that are unsafe. INJURY OR DEATH ON CONTACT may result. Appropriate
safety precautions should be taken. All connections should be made in accordance with
LOCAL ELECTRICAL CODES.
• The CHASSIS should be connected to earth or system ground with Ground Stud on the rear
panel, see mechanical diagrams.
• For the DC input cable and connector:
•Do not assume that a hazardous voltage is not present at the terminals of the DC input
connector, even if the MINV appears to be “OFF”.
•Do not make contact with the terminals of the DC input connector.
•Always connect the cable to the MINV before it is connected to the source of DC power.
•AlwaysdisconnecttheDCinputcablefromthesourceofDCpowerbeforedisconnecng
it from the MINV.
•If the DC input cable is connected to the source of DC power and not connected to the
MINV, do not contact the exposed terminals of the DC input cable.
•If custom built cables are used to power the MINV Unit, verify that the custom input cabling
hasareliablegroundconneconandthatthegroundconneconhasnotbeenaccidentally
swappedwithalineconnecon.Connecngthegroundwiretoalivelinecouldpossibly
put hazardous voltages across the chassis.
•ConneconsbetweentheDCinputcableandthesourceofDCpowershouldnotbeaccessible.
• For the AC OUTPUT cable and connector:
•Do not assume that a hazardous voltage is not present at the terminals of the AC output
connector, even if the MINV appears to be “OFF”.
•Do not make contact with the terminals of the AC output connector.
•Connect the AC output cable to the MINV before the MINV is turned on.
• If connecon of the load to the AC output cable has exposed conductors, make this
conneconbeforeconnecngtheACoutputcabletotheMINV.
•ConneconsbetweentheACoutputcableandtheACloadshouldnotbeaccessible.

Section I Warnings
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Hazardous Energies
The INPUT AND OUTPUT POWER connectors and cables of the SynQor MINV-4000-270 may
be a source of high levels of energy. Do not inappropriately make electrical contact between
any terminal of a connector and another, or between any wire of a cable and another, or
between any terminal or wire and the MINV Unit’s chassis or ground. DAMAGING ELECTRICAL
ARCS may result. Care should be taken to avoid accidental electrical contacts of this sort. The
CHASSIS should be connected to earth or system ground through the Ground Stud on the rear
panel, see mechanical diagrams.
Protecon from the Environment
The SynQor MINV-4000-270 is a ruggedly built product having its electronics contained in a
sealedchamber.Itiscapableofwithstandingharshlevelsofmechanicalacceleraon,shock
andvibraon,temperatureandpressurevariaons,andexposuretowater,salt,sandanddust
withinthelevelsspeciedinthedatasheet.THESE LEVELS SHOULD NOT BE EXCEEDED.
Do not obstruct the air intake in the front of the MINV or the fan exhausts in the rear panel of
theMINVwhiletheMINVisoperang.
User Serviceable Parts
MINV-4000-270 fans are user replaceable with kits available from SynQor. Please contact the
SynQorfactoryforobtainingfanreplacementkitsandinstrucons(Counter-RotangReplaceable
Fan Module , two piece kit, SYN-9452). The SynQor MINV has no other user serviceable parts
inside. DO NOT REMOVE the cover of the MINV or any of its connectors. Other than fan assembly
replacement, only factory trained personnel should perform unit repairs.

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Product Descripon
SynQor’sMilitaryInverter(MINV)Unitsaredesignedfortheenvironmentalanddemanding
electricalcondionsofMilitary/Aerospaceapplicaons.TheMINV-4000-270willacceptaDC
Inputwithavoltagerangeof160-330Vdc.Theunitwilldeliverawell-condionedconnuous
4000W/5000VA,115/230VrmsSingle-Phaseoutputtotheload.Theoutputissurge-rated
for5250W/6500VAfortransientduraonsupto10seconds.AllMINVunitsaredesignedand
manufacturedinSynQor’sUSAfaciliestocomplywithasignicantsetofmilitarystandards.
Acommunicaon/controlportisavailabletopermitmonitoringandcontrolthroughahost
computersystem.FrontpanelLEDsprovideinformaononthestatusoftheMINV.
The electronic circuitry within the MINV-4000 Series products is designed, qualied and
screened according to SynQor’s MIL-COTS Standards. It complies with the requirements of
MIL-STD-704F and MIL-STD-461F.
The MINV-4000 Series products are designed and manufactured to withstand the harshest
environmentsanduseencounteredinmilitaryapplicaons.Theelectroniccircuitryiscontained
in a sealed chamber constructed from a die-cast aluminum chassis that is weather-proof and
shock-proof.Redundant,water-prooffansontherearpaneldrawcoolingairovertheheat-
sinknsbelowthesealedchamber.Military-gradecircularconnectorsareused,andoponal
aached connector covers are available for when the cables are not aached. The MINV
productscomplywithawiderangeoftesngaccordingtoMIL-STD-810G.
The SynQor MINV-4000 Series products are designed and manufactured in the U.S.A..

Section II General Product Information
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Product Topology
TheSynQorMINV-4000Seriesproductsuseanisolatedtopologythatprovidesprotecon
to the load from spikes, noise, surges, brownouts, blackouts, etc. in the input power source.
They also provide smoothing of load transients and nonlinear load proles so that the
input power source is not subjected to these disturbances. EMI lters are present at all
MINV-4000-270 external inputs and outputs.
Galvanic
Isolation
DC Input 1-Phase
AC Output
Electronic
Breaker
(option)
DC / AC
Inverter
Input
Filter
DC-DC
Converter
AC Filter
DC- DC
Isolated
Converter
PowerowsintheMINVUnitfromtheDCINPUTthroughan EMIFilter,toaDC-DCBoost
converter. The boost converter provides power smoothing for pulsed loads. The boosted DC
poweristhenpassedthroughanisolatedDC-DCconvertertocreateagalvanicisolaonlayer
betweentheDCinputandtheDCmid-bus.Bulkenergystoragecapacitorsconnectedtothe
mid-busalsosmoothimbalances inthepowerow.TheACOUTPUTisthencreatedbyan
inverter that draws power from the isolated DC mid-bus. The inverter provides a pure-sinusoidal
output voltage waveform. An AC EMI Line Filter located at the output of the inverter provides
clean,well-condionedconnuousoutputpowertotheload.Anoponalelectronicbreaker
can be added to the AC OUTPUT. The breaker is a single-pole hot side only type, that allows for
fault-tolerant,glitch-freeoperaonwhenseveralMINVUnitsareconnectedinparallel.
Thereisacommunicaon/controlportthatprovidesadigitalinterfacetoahostcomputersystem.

Section II General Product Information
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Part Numbering Scheme and Opons
This table shows the part numbering scheme for the full line of SynQor MINV-4000-270 products:
Base Models
Model Number Power Height (W x D x H) Weight
MINV-4000-1U-270 4000 W 5000 VA 1U (17.00” x 22.42” x 1.73”) 33 lbs.
Base Models
Options Options
AC
Output
Voltage
AC
Output
Neutral
Wire
AC
Output
Set Point
Freq
Output
Cong Additional Options
AC Output
Voltage
1
2
115 V
230 V
AC Output
Neutral
Wire
G
F
R
Grounded
Floating*
AC Output Electronic Breaker*
MINV-4000-1U-270- 1
2
G
F
R
5
6
4
S -E 00 AC Output
Set Point
Freq
5
6
4
50 Hz
60 Hz
400 Hz
Output
Cong SOne Single-Phase OutputNot all combinations make valid part numbers, please contact SynQor for availability.
See the Product Summary web page for more options.
Additional
Options
-E Ethernet/SNMPwithCongLoading
*Notes: 00
Order “F:Floating”optionwhenconguringtheACoutputformulti-unitcombinations
of up to 32 units.
Order “R: AC Output Electronic Breaker” option for fault-tolerant,
glitch-free parallel systems of up to 32 units with N+M redundancy.
The AC output neutral wire will not be connected to the chassis for
either the F option or R option.
Example:
MINV-4000-1U-270-1G6S-E00
TheMINV-4000Seriesofproductsprovideupto4000W(5250Wtransient)ofACSingle-Phase
output power.
The base model comes in the following form factor:
• A 1U high, 33 lbs. rackmount unit.
Thefollowingoponsthatcanbespeciedaccordingtothepartnumberingschemeshown
in the table:
• The AC OUTPUT voltage of the MINV-4000 Series can be 115 Vrms or 230 Vrms.
•The AC OUTPUT can be congured with its neutral wire intenonally grounded to the
chassisoftheMINVorleoangforshipboardandparallelingapplicaonsofupto32
units.
•Theinialset-pointfrequencyoftheACOUTPUTvoltagecanbe50,60,or400Hz.Regardless
oftheinialset-pointfrequency,theactualfrequencycanbesetthroughthecommunicaons/
control port to 50, 60, or 400 Hz.

Section II General Product Information
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•TheElectronicBreakeroponaddsfault-tolerant,glitch-freemul-unit operaonforN+1
orN+Mredundancy.Thisoponallowsupto32unitstotalinSingle-Phase,Split-Phase,or
3-Phase systems.
•RS-232serialportandlogic-levelI/Ocommunicaonareincludedinthestandardmodel.An
Ethernet port provides web and SNMP interfaces.
Product Specicaons
ThenextpagesshowtheelectricalandmechanicalspecicaonsoftheMINV-4000Seriesof
products.Datasheetsshowingthesespecicaonsandotherinformaoncanbefoundatthe
web site http://www.synqor.com/MINV.
1.73"
1U
17.00"
MINV-4000-1U-270
MINV-4000-1U-270
Status Indication Panel
Ground
Stud
(1/4-20)
CONFIG
Port
User
I/O
Ethernet
Port
Fan
Exhaust
Fan
Exhaust
DC
Input
AC
Output
On/Off
Switch
Air intake
Transit Case Option

Section II General Product Information
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Technical Specicaons
DC INPUT CHARACTERISTICS
Voltage - Steady State 160 - 330 Vdc
Voltage - 100ms Transient 150 - 350 Vdc
Input Current - Typical 16.6 A (4000 W, 270 V)
Input Current - Maximum 30 A (4000 W, 150 V)
Internal Fuse Rating 40 A Fast Blow
Reverse Polarity Protection -650 Vdc
AC OUTPUT CHARACTERISTICS
Continuous Output Power 4000 W (5000 VA)
Transient Output Power (15 seconds) 5250 W (6500 VA)
AC Output Waveform Pure Sinusoidal
VoltageLine-Neutral 115 Vrms ± 3%
230 Vrms ± 3%
Frequency (software selectable) 60 Hz ± 0.5%
50 Hz ± 0.5%
400 Hz ± 0.5%
Output Voltage Total Harmonic Distortion <2%
LoadPowerFactor 0-1.0 (leading or lagging)
Efciency 90% (4000 W load)
88% (2000 W load)
Single-Phase Output
SteadyStateLoadCurrent 43.5 Arms (115 Vrms)
21.7 Arms (230 Vrms)
TransientLoadCurrent(15seconds) 56.5 Arms (115 Vrms)
28.3 Arms (230 Vrms)
PeakLoadCurrent(Min.ShutdownThreshold) 104 Apk (115 Vrms)
52 Apk (230 Vrms)
Specicationssubjecttochangewithoutnotice.
ENVIRONMENTAL CHARACTERISTICS MIL-STD-810G
Temperature Methods 501.5, 502.5
Operating Ambient Temperature
Full Rated Power -40 °C to +55 °C
Reduced Power +55 °C to +70 °C
Storage Temperature -40 °C to +70 °C
Altitude Method 500.5
Operating 0 - 18,000 ft
Non-operating 0 - 40,000 ft
Environmental Tests
Shock/Drop Method 516.6, Procedures 1, 4, 6
Temperature Shock Method 503.5, Procedure 1
Vibration Method 514.6, CAT 5, 7, 8, 9, 24
Fungus Method 508.6
Salt Fog Method 509.5
Sand and Dust Method 510.5, Procedures 1, 2
Rain Method 506.5 Procedure 1
Humidity Method 507.5 Procedure 2
Mechanical Vibrations of Method 528 Procedure 1
Shipboard Equipment
RELIABILITY CHARACTERISTICS MIL-HDBK-217F
MTBF: 450 kHrs MIL-217FGroundBenign,Ta=25°C
INTERFACE STD FOR AIRCRAFT SYSTEMS MIL-STD-704
270 Volts DC System
115 V 1-Phase Output Power per Table I, Table II, Table III
(Order F / R Option to Float Output)
ELECTROMAGNETIC CAPABILITY MIL-STD-461F
CE101-2 30 Hz - 10 kHz
CE102 10 kHz - 10 MHz
CS101 30 Hz - 150 kHz
CS106 Pulse Transients
CS114 (Curve #5) 10 kHz - 200 MHz
CS115 Impulse Excitation
CS116 10 kHz - 100 MHz
RE101(NavyLimit) 30 Hz - 100 kHz
RE102(NavyTopsideLimit) 10 kHz - 1 GHz
MECHANICAL CHARACTERISTICS
Chassis Size 17.00” W x 22.42” D x 1.73” H (1U)
Case Material Aluminum
Weight 33 lbs.
DC Input Connector
DC Input Connector CA3102E20-19PXBA34
AC Output Connectors
115V Single Phase CB2-20-19SXSA34-FM
230V Single Phase CB2-20-19SXSA34-FM
I/O Ports
CongurationI/OPort HD DB15 Male
User I/O Port HD DB15 Female
Ethernet Port Amphenol RJF22N00, Code B
Cooling Exhaust Fans
SoundPressureLevel(SPL) 64 dB(A)
Air Flow 0.92(m3/min) 32.5 CFM
Two fans in system; above specs are for each fan separately.

Section II General Product Information
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1U Mechanical Diagram
MADE IN U S A
MINV
1.73
[43.9]
1.49
[37.8]
17.000
[431.80]
21.343
[542.11]
22.42
[569.4]
0.75
[19.1]
9.750
[247.65]
0.750
[19.05]
18.700
[474.98]
19.450
[494.03]
0.55
[13.9]
0.313
[7.94]
0.625
[15.88]
UNIT
MOUNTING
HOLES
8-32 0.250
x26
MILITARY
INVERTER
POWER OUT LOAD
COM REM BATTLE
FAN
TEMP
POWER IN
®

Section II General Product Information
006-0007361 12/08/2022 Rev A 9 of 41 MINV-4000-270 Guide www.synqor.com
Eciency
Figure1showsthetypicaleciencywithwhichtheMINV-4000-270unitdeliverspowertoits
AC OUTPUT load from 60 Hz:
80%
82%
84%
86%
88%
90%
92%
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Efficiency
AC Output Power (kW)
330 Vdc
270 Vdc
160 Vdc
Figure 1
Total Output Power
ThetotaloutputpowerfortheMINV-4000-270isratedat4000W/5000VA(Surge-ratedto
5250W/6500VAfortransientduraonsupto10seconds)forforanambienttemperature
as high as 55oC(131oF).

Section II General Product Information
006-0007361 12/08/2022 Rev A 10 of 41 MINV-4000-270 Guide www.synqor.com
Temperature Derang
The maximum steady-state MINV-4000-270 output power as a funcon of ambient air
temperatureandDCinputvoltageisshownbelowinFigure2.(SeeSeconIV).
0
1000
2000
3000
4000
5000
6000
40 45 50 55 60 65 70 75
AC Output Power (W)
Ambient Temperature (°C)
Steady State Rating
Transient Rating
Figure 2: Output Power vs. Ambient Temperature
Power Cable Wiring Diagram
Lookingattherearpanel,theMINV-4000-270connectorterminalshavethefollowingfunconsandlocaons:
DC Input
Pin Funcon
A Ground
B Vin +
C Vin -
Warning: Pin D should never be connected to
a line Voltage
A
CB
AC OUTPUT
Pin Funcon
A Line 1
B Line 2
C Ground A
BC

006-0007361 12/08/2022 Rev A 11 of 41 MINV-4000-270 Guide www.synqor.com
S III O
Set-Up
TherecommendedprocedureforsenguptheMINV-4000-270isthefollowing:
• Connect the ground wire to the ground stud on the rear panel of the MINV.
• ConnecttheACOUTPUTcables,rsttotheMINVandthentotheload.
• ConnecttheUSERI/Ocables.
• CheckthatpinAintheinputconnectorisnotconnectedtoVin+orVin-.Oninputcables
providedbySynQor,pinA(EarthGround)isconnectedtothegreencolorwire.
• EnsuretheDCpowersourceiso.
• ConnecttheINPUTcables,rsttotheMINVandthentotheDCsource.
•Turnonthesource(ifithasanup-streambreaker).
Start-Up
•VERIFYthatallconneconstotheMINV-4000-270arecorrect.
•IftheDCsourceispresentandwithinspecicaons,aPOWERINLEDsonthefrontpanelwill
light up green.
•Momentarilypushthe“ON/OFF”switchonthefrontpaneloftheMINVupward.Theswitch
canthenbereleasedanditwillreturntoitsnormal(neutral)posion.
•TheMINVwillimmediatelyenableitsoutputs(assumingthereisnofaultcondion).The
colorofthePOWEROUTLED(s)onthefrontpanelwillchangetogreen.TheLOADLEDson
the front panel will indicate the amount of power being delivered to the load.
Shut-Down
• Shut down the equipment connected to the MINV-4000-270.
•Push the“ON/OFF”switchonthefrontpaneloftheMINVdownwardandholditinthis
posionfor1second(ormore). The switchcanthenbereleased toreturntoitsnormal
posion.
• The MINV will disable its outputs.

Section III Operation
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Power Cable Connecons
For safety reasons, the input and output power cables should be connected to the
MINV-4000-270beforethesourceofDCpoweristurnedon(seeSecon I: Warnings and the
SET-UP seconabove).Similarly,oneshouldrstturn“OFF”theMINVandthesourceofinput
power before any power cables are disconnected from the MINV.
ALSO NOTE that when the MINV-4000-270 is turned “ON” and delivering power to a load,
and then another piece of equipment is connected to the same output, it is possible that this
conneconwillmomentarilydisruptthequalityoftheMINV’soutputvoltage.Forinstance,
consider the case where the AC OUTPUT power cable has a terminal strip that allows several
loads to be connected to it. If the MINV is turned “ON” and delivering power to several of these
loads and then another load is connected to the terminal strip, it is possible that this new load
will momentarily draw a large surge of current as it starts up. If this happens, the output of
the MINV could reach its maximum current limit, and the MINV will reduce its output voltage
tokeepthecurrentfromgenganylarger.Thisreduconinvoltagewillbecorrectedonce
thenewloadreachesitsnormalmodeofoperaon,butinthemeanmethereduconofthe
MINV’soutputvoltagemightcauseoneormoreoftheotherloadstomalfuncon.Whether
ornotthiswillbeaproblemdependsonthecharacteriscsofthevariousloads.
Programming The Output
The MINV-4000-270 allows the user to adjust the output frequency. The output frequency can
be set to 50, 60 and 400 Hz via both the serial and web interfaces. The MINV output frequency
cannot be programmed using the SNMP interface.
SeetheMINVEthernetandSNMPguidefordetailsonupdangtheoutputfrequencyusing
thewebpage.SeetheMINVUserCommandsdocumentfordetailsonupdangthefrequency
usingtheRS-232interface.
hps://www.synqor.com/document-viewer?document=MINV_User_Commands.pdf
hps://www.synqor.com/document-viewer?document=MINV_Ethernet-SNMP_User_Guide.pdf

Section III Operation
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Cooling System
The SynQor MINV-4000 Series products are cooled by fans that draw air into the intake on
the front panel and exhaust it out the two fan ports on the rear panel. Care should be taken
toensurethereisnoobstrucontothisairow,eitheratthefrontintakeortherearexhaust
ports.Similarly,careshouldbetakentoavoidobstrucngthefanblades.
Thespeedofthecoolingfansisautomacallycontrolledtoprovideadequatecoolingwhile
extendingthe lifeofthefanbearings.Underlowambienttemperatureand/orlowoutput
power the fans will be driven at a low speed.
Iftheambienttemperatureis lowenough(forthelevel of powerbeingdeliveredtothe
load),thefansmaynotbeon.Thisisnotamalfuncon.Itisdonetopreservethelifeof
thefans.Ifthefansare“OFF”,checktheFanServiceRequiredLEDonthefrontpanelofthe
baerypack.IfitisGREEN,thefansarefunconingproperlyandsimplynotneededunder
thepresentcondions.
The fans are weather-proof and water-proof.
The MINV-4000-270 has two fans to provide redundancy for these exposed, moving
components. With only a single operang fan the MINV is sll able to deliver 100% rated
poweratanambienttemperatureof25°C,85%ratedpowerat40°C,and70%ratedpowerat
55°C.
Note: The environmentally sealed chassis of the MINV also serves as a heatsink for internal
components. As such, it is normal for the outside surface of the chassis to be hot to the touch.

Section III Operation
006-0007361 12/08/2022 Rev A 14 of 41 MINV-4000-270 Guide www.synqor.com
Front Panel Indicators
To indicate the status of the MINV there are 11 LEDs on the front panel. These indicators are
describedinthissecon.
LEDs
EachMINVhasupto11LEDs,asshownbelow,thatindicatethestatusoftheoperaonof
the MINV:
MINV Single Output LED Status Label
• Power-In Indicator (LED in posion D0)
The LED D0 indicates the status of the DC INPUT, according to the table below:
LED Appearance Description Indication
Green Input is Ready to Provide Load Power
Amber Input is Not within Range
Red Input is Not Present
Off MINV is Off
• Power-Out Indicator (LED in posion A1)
TheLEDinposionA1indicatesthestatusoftheACOUTPUT,accordingtothetablebelow
LED Appearance Description Indication
Green MINV is On and the Output Voltage is
Within Range
Amber MINV is On but the Output Voltage is
Out of Range
Red MINV is Off and the Output Voltage is Within Range
Off MINV is Off

Section III Operation
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• Load Power Indicators (LEDs in posions B0 – B3)
TheLEDsinposionsB0throughB3indicatethetotaloutputpoweroftheMINVaccordingtothetable:
LED Appearance Description Indication
B0 Dimmed Green;B1-B3 Off Total Load Power <25%
B0 Green; B1 Dimmed Green; B2-B3 Off Total Load Power <50%
B0, B1 Green;
B2 Dimmed Green; B3 Off Total Load Power <75%
B0, B1, B2 Green;
B3 Dimmed Green Total Load Power <100%
B0; B1; B2 Green;
B3 Blinking Red Total Load Power ≥100%
• MINV Fan Service Required Indicator (LED in posion C0)
TheLEDinposionC0indicateswhetherthetwocoolingfansintherearpaneloftheMINVareOKorif
their performance is degraded, according to the table below:
LED Appearance Description Indication
Green Both Fans are OK
Amber One or Both Fans Have Recently Had Degraded Performance
and Diagnostic Tests are Being Performed
Red One or Both Fans Presently Have Degraded Performance
• MINV Cooling System Indicator (LED in posion F0)
TheLEDinposionF0indicatesthetemperatureandstatusofthecoolingsystemfortheMINVaccording
to the table below:
LED Appearance Description Indication
Green Moderate MINV Temperature
(Fans Running at 25%)
Blinking Green Warm MINV Temperature
(Fans Running at 50%)
Amber Elevated MINV Temperature
(Fans Running at 75%)
Red Maximum MINV Temperature
(Fans Running at 100%)
Blinking Red Over Temperature Warning
(Fans Running at 100%)

Section III Operation
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• Control Status (LED in posion E0, E1, E2)
TheLEDinposionE0,E1orE2indicateswhetherRS232orEthernetPort,RemoteEnable/Shutdownor
BaleShortareacve:
LED Appearance Description Indication
Green E0: RS232 active or Ethernet Port Active,
E1: Remote Enable Active
Blinking Red E2: Battle Short Mode Active,
Temperature Shutdowns Removed
Red E1: Remote Shutdown Active
Audible alarm
For crical situaons a paern of audible tones will be repeated every 5 seconds, according
to the table below. This audible alarm can be silenced byholdingtheON/OFFswitch onthe
frontpanelinthe“UP”posionwhiletheMINVisoperanganditsoutputisrunning,orinthe
“DOWN”posionwhileinStandbyMode,unlachirpisheard.Anewalarmcondionwillcause
theaudiblealarmtobereacvated.ContactFactoryforinstruconsonhowtopermanently
silence the alarm.
Number of Tones in Pattern Indication
One Input Voltage is Lower than Minimum Operating Level
Two Load Power is greater than or Approaching 100% Rated Power
Three Fault Appears on the AC Output
MINV Must be Turned Off and Back On to Reset Fault
Four One or More Fans have Encountered a Fault and Require Service

Section III Operation
006-0007361 12/08/2022 Rev A 17 of 41 MINV-4000-270 Guide www.synqor.com
Operang Environment
TheSynQorMINV-4000Seriesisdesignedfortheextremeenvironmentalcondionsofmilitary
andaerospaceapplicaons.Alltheelectroniccircuitryiscontainedinasealed,weather-proof,
shock-proof chamber constructed of die-cast aluminum. Only the redundant, water-proof
coolingfansareexposedtotheenvironment.TheUnitwillshutdownifitistoohotandBale
Modeisnotacve.
TheMINV-4000-270(withcablesconnectedorconnectorcoversinstalled)hasbeenqualied
tothefollowingrequirementsofMIL-STD-810G:
MIL-STD-810G
Test Method Name Procedure Details
500.5 Low Pressure I, II and III •15,000.operang
•40,000.storage
501.5 High Temperature I and II •+55oCoperang
•+65oC storage
502.5 Low Temperature I and II •-20oCoperang
•-20oC storage
503.5 Temperature Shock I •10 cycles; >10oC/minute
506.5 Rain I•4”rain/hour
•40 mph wind velocity
507.5 Humidity NA •>95%
508.6 Fungus NA •28daytest
509.5 Salt Fog NA •5%saltsoluon
•2cycles(24hr.wet/24hr.dry)
510.5 Sand and Dust I and II •20 mph blowing dust
•40 mph blowing sand
514.6 Vibraon Category 5 •5Hz(300RPM)
•Loose Cargo
514.6 Vibraon Category 7 •General Exposure
514.6 Vibraon Category8 •C-130Aircralevel
514.6 Vibraon Category 9 •General Exposure
514.6 Vibraon Category 24 •PSD = 0.04 g2/Hz;20-2000Hz
•Operang
516.6 Shock I, IV and VI
•20g/20ms;40g/11ms;75g/6ms
•48inchdropintransitcase
•30degreeltanddrop
528 MechanicalVibraonsof
Shipboard Equipment I•Operang