Unipower Scimitar 3000 Series Installation instructions

POWERING TECHNOLOGY
UNIPOWER LLC • 3900 Coral Ridge Drive, Coral Springs, Florida 33065, USA • [email protected]
NORTHAMERICA & CALA CALL: [phone] • EMEA CALL: [phone]
INSTALLATION & OPERATING MANUAL
Scimitar 3000 Series
3000W 2RU RACK-MOUNT INVERTERS
WWW.UNIPOWERCO.COM
Manual No. SCIMITAR3000-1 © 2019 UNIPOWER LLC
scimitar3000-man-rev1-0219.indd All Rights Reserved

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 3 scimitar3000-man-rev1-0219.indd
Contents
1. Features ...........................................................................................................................................................................4
1.1 Applications................................................................................................................................................................4
 1.2 Specications .............................................................................................................................................................5
1.4 MECHANICAL DRAWING..........................................................................................................................................6
2. INTRODUCTION...............................................................................................................................................................7
2.1 Front Panel Description..............................................................................................................................................7
2.2 Rear Panel Description...............................................................................................................................................7
2.3 Installation ..................................................................................................................................................................9
2.4 Quick Hook-up and Testing.......................................................................................................................................10
2.5 Safety Grounding......................................................................................................................................................11
2.6 Making DC Connections...........................................................................................................................................12
2.7 Alarm Connection.....................................................................................................................................................13
2.8 Inverter Operation.....................................................................................................................................................13
2.9 Cooling Fan Operation .............................................................................................................................................15
3. Maintenance....................................................................................................................................................................15
4. Troubleshooting Guide....................................................................................................................................................15
5. Warranty (summary)........................................................................................................................................................16
6. Important Safety Instructions...........................................................................................................................................16
6.1 General Safety Precautions......................................................................................................................................16
6.2 Precautions When Working with Batteries................................................................................................................16
7. DIP switch settings &AC Voltage Adjustment.................................................................................................................17
8. Communications Protocol & Remote ON/OFF Function ................................................................................................17

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 4 scimitar3000-man-rev1-0219.indd
1. Features
•Pure sine wave output (THD <3%) R Load
•By-pass function
•Output frequency : 50/60Hz switch
•RS-232 interface / Remote controls port / Wire connection to PC
•Wired Remote control
•Loading and Temperature controlled cooling fan
•Advanced microprocessor
•Protection: Input Undervoltage, Input Overvoltage, Overload, Short circuit, Low battery alarm, Over temperature
1.1 Applications
 O󰀩ceequipment–computers,printers,monitors,facsimilemachines,scanners.
 ApplicationsshouldbelimitedonlytoITE,o󰀩ceequipment.

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 5 scimitar3000-man-rev1-0219.indd
1.2 Specications
MODEL NUMBER INV1230R-B INV2430R-B INV4830R-B INV1230RH-B INV2430RH-B INV4830RH-B
100-120VAC Models 200-240VAC Models
Inverter Section
Input Voltage Range 10-16VDC 20-32VDC 42-62VDC 10-16VDC 20-32VDC 42-62VDC
Input Current (Max.) 349A 171A 81A 345A 167A 78A
Input Current (NL) 1.50A 0.82A 0.39A 2.20A 1.08A 0.55A
Output Power 3000W
Surge Rating 3200W for 3 minutes, 3500W for 3 seconds
Efficiency @ FL 86% 88% 89% 87% 90% 92%
Output Voltage 100-120VAC (adjusatable) 200-240VAC (adjustable)
Output Frequency 50Hz or 60Hz ±0.05% (switch selectable)
Peak Output Power 6000W
Output Waveform Pure Sine Wave <3% THD (R Load)
Protection
Output Overload - Output Short Circuit
Input Reverse Polarity (fuse) - Input Undervoltage - Input Overvoltage
Over Temperature
Digital Display OVP - UVP - OTP - OLP - VAC
AMP - WATT - VDC - TEMP - Hz
Control Port RS232C
Baud Rates - 2400, 4800, 9600, 19200 (switch selectable)
SNMP (Option) Operates in conjunction with NetAgent UPS SNMP Agent
STS Section (By-Pass)
AC Input Range 90 - 130VAC (110VAC nominal) 180-260VAC (230VAC nominal)
Frequency 50 - 63Hz ±3%
Transfer Time 4 - 6ms
Alarm Relay Form-C dry contacts, indicates presence of AC Utility supply
(NOTE: Not suitable for direct connection to SELV circuits)
THE STS BY-PASS SECTION IS ONLY ACTIVE WHEN A UTILITY OR OTHER AC SOURCE IS CONNECTED.
NORMAL OPERATION , WITH OR WITHOUT A UTILITY OR OTHER AC SOURCE IS ‘ON-LINE’ , WITH THE INVERTER
DELIVERING REGULATED AC TO THE OUTLETS.
General
Temperature Range -20°C to +50°C Operating
-30°C to +70°C Storage
Safety EN60950-1
EMC
FCC CFR Title 47 Part 15 Subpart B: 2008 Class A
CISPR 22: 2005
ANSI C63.4: 2003
EN55022:2006+A1: 2007, Class A
EN55024: 1998+A1: 2001+A2: 2003
EN61000-3-2: 2006
EN61000-3-3: 1995+A1: 2001+A2: 2005
IEC61000-4-2 Ed. 1.2: 2001-04
IEC61000-4-3 Ed. 3.0: 2006
IEC61000-4-4: 2004
IEC61000-4-5 Ed. 2.0: 2005
IEC61000-4-6 Ed. 2.2: 2006
IEC61000-4-8 Ed. 1.1: 2001-03
IEC61000-4-11 2nd Ed.: 2004-03
Case
Dimensions
17.5” (d) x 16.7” (w) x 3.5” (h)
445mm (d) x 424mm (w) x 88mm (h)
Mounting 19” rack-mount, 2RU high
Weight 31.5lbs / 14.3Kg

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 6 scimitar3000-man-rev1-0219.indd
L N FG
SCIMITAR
3000
L N FG
ON
OFF
1.97”
(50.0mm)
1.14”
(29.0mm)
1.54”
(39.0) 1.10”
(28.0mm) 1.22”
(31.0mm)
3.46”
(40.0mm)
0.87” (22.0mm)
17.52” (445.0mm) 3.94” (100.0mm)
3.46” 1.77”
0.12” (3.0mm)
(88.0mm)
(45.0mm)
0.12” (3.0mm)
19.06” (484.0mm)
18.23” (463.0mm)
1.73” 1.26”
18.90” (480.0mm)
0.12” (3.0mm) 0.12” (3.0mm)
18.07” (459.0mm)
(44.0mm) (32.0mm)
TOP VIEW
REAR VIEW
(as seen from back)
SIDE VIEW
FRONT VIEW
1.4 MECHANICAL DRAWING

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 7 scimitar3000-man-rev1-0219.indd
2. INTRODUCTION
Scimitar 3000 Series is an advanced range of pure sine wave output power inverters employing microprocessor
technology.
For optimum performance and life expectancy they must be installed and used properly.
Please read the instructions in this manual BEFORE installing the unit and switching it on.
2.1 Front Panel Description
SCIMITAR
3000
DISPLAY PANEL FUNCTION SELECTOR
ON/OFF
SWITCH
OUTPUT VOLTAGE
ADJUSTMENT
OUTPUT FREQUENCY
& SERIAL BAUD SETTING
2.1.1 ON/OFF Switch
Switches the inverter electronics ON and OFF. Should be in the OFF position during installation.
2.1.2 Function Selector, LEDs & Display
When the function selector is sequentially pushed the display shows the reading associated with the actual
parameter indicated by the top row of LEDs in the sequence:
VAC - AMP - WATT - VDC - TEMP - Hz
In the event of a fault condition this will be indicated on the display. See section 2.8.
The ONLINE LED indicates that a Utility or other external AC source is connected to the unit.
The BYPASS LED indicates that the unit is shutdown and the Utility or otherAC source has been switched
to the outlet sockets.
IMPORTANT NOTE: In the event of a DC supply failure or if the ON/OFF switch is set to the OFF
position all LEDs and the display will be switched o. If a Utility or other AC source is connected to
the unit this will automatically be fed to the outlet sockets, unless the AC Mains Breaker mounted
on the rear panel is switched o.
2.1.3 DIP Switches
The DIP switches are used to set output frequency, RS232 baud rate and output voltage setting. See
sections 7.1 and 7.2 for full details.
2.2 Rear Panel Description
L N FG
L N FG
ON
OFF
AC MAINS
ALARM RELAY
RS232
AC MAINS
INPUT
AC MAINS
BREAKER
CHASSIS
GROUND
DC INPUT -VE
DC INPUT +VE AC OUTPUT (x2)

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 8 scimitar3000-man-rev1-0219.indd
2.2.1 AC Output Connections
The AC Output is provided on two terminals blocks connected in parallel.
Electrical Hazard.
Contact with water can cause electric shock.
2.2.2 Ventilation openings.
   Donotobstruct.Allowatleast3”(~75mm)forclearairow.
  2.2.3 ACmainsbreaker.Thisbreakermustbeoperatedbyqualiedpersonnelonly.itmustbeswitchedonto
allow the utility AC to be fed to the outlet sockets when the unit is on bypass.
2.2.4 Alarm connector: This connector MUST NOT be connected to SELV circuits.
NO means: Normally Open
NC means: Normally Close
COM means: Common.
The alarm indicates that an external AC source is available for by-pass purposes.
When the inverter is switched on and an AC supply is available to the by-pass circuit, NC and COM are
shorted.
When the inverter is switched on and there is no AC supply available to the by-pass circuit, NO and COM
are shorted.
 Whentheinverterisswitchedo󰀨,NCandCOMareshorted.
See section 2.7 for details about using this function.
2.2.5 DC Input Terminals.
Used to connect to a 12V, 24V or 48V battery or other suitable DC source.
[+] must be connected to the positive terminal of the battery or DC source.
[-] must be connected to the negative terminal of the battery or DC source.
WARNING: Reverse polarity connection will blow an internal fuse and may also damage the unit
beyond repair. Pay particular attention when connecting to a -48V battery system. In such event the
unit will have to be returned to UNIPOWER for repair if possible and any remaining warranty will be
void.
L N FG
L N FG
L N FG
L N FG
20~32VDC
-48V SYSTEM
AC MAINS
+12V or +24V SYSTEM
(+24V shown as example)
AC MAINS
RET. BAT.
RET.BAT.
LOAD LOAD
2.2.6 RS232 connector, 9-way D-type.
This connector allows for connection to a PC serial port and various status information obtained.
See section 8 for more details.

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 9 scimitar3000-man-rev1-0219.indd
2.2.7 Frame Ground.
Connect to the frame ground of the cabinet or rack in which the unit is installed using 8AWG wire.
WARNING!
Operation of this inverter without a proper ground
connection may result in an electrical safety hazard.
2.3 Installation
WARNING!
Shock Hazard. Before proceeding further, carefully check that
the unit is NOT connected to any batteries and that all wiring is
disconnected from any electrical sources.
Do not connect the output sockets to an incoming AC source.
This power inverter should be installed in a restricted access location such as a Telecommunications room or IT room,
whereaccessislimitedtoserviceandotherqualiedpersonnelandwhichcanonlybeenteredbyuseofatoollockor
key which is controlled by the authority that is responsible for the location. Bare parts of any terminals that present a
hazardous energy level shall be located or guarded so that unintentional bridging by conductive materials that might be
present is unlikely. A readily accessible disconnect device shall be incorporated in the building installation wiring prior to
connection to the inverter. These locations should additionally meet the following requirements:
2.3.1 Dry - Do not allow water to drip or splash on the inverter.
2.3.2 Elevated OperatingAmbient - if the inverter is installed in a closed or multi-unit rack assembly the operating
ambient temperature of the rack environment may be greater than the room ambient. consideration should
be given to installing the inverter in an environment compatible with the maximum ambient temperature of
60°C.
  2.3.3 Safe-Donotinstalltheinverterinabatterycompartmentorotherareaswhereammablefumesmayexist,
such as fuel storage areas or engine compartments.
  2.3.4 ReducedAirow-Installationoftheinverterinarackshouldbesuchthattheamountofairowrequiredfor
safe operation is not compromised.
2.3.5 Dust Free - Do not install the inverter in a dusty environment as dust and other particles such as wood
shavings,lingscanbepulledintotheunitwhenthecoolingfansareoperating.
2.3.6 Close to Batteries - Avoid excessive cable lengths but do not install the inverter in the same compartment
as the batteries. Use the recommended wire lengths and sizes (see section 2.6). Also, do not mount the
inverter where it will be exposed to gasses produced by the battery as these gasses are highly corrosive
and prolonged exposure will damage the inverter.
2.3.7 Mechanical Loading - Mounting of inverter in the rack should be such that a hazardous condition is not
achieved due to uneven mechanical loading.
2.3.8 Circuit Overload - Consideration should be given to the connection of the inverter to the supply circuit and
thee󰀨ectthatoverloadingofthesecircuitsmighthaveonovercurrentprotectiondevicesandsupplywiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
2.3.9 Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular attention
should be given to supply connections other than direct connections to the branch circuit (e.g. use of power
strips).

POWERING TECHNOLOGY
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INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 10 scimitar3000-man-rev1-0219.indd
2.3.10 The unit shall be connected directly to the DC supply system earthing electrode conductor or to a bonding
jumper from an earthing terminal bar or bus to which the DC supply system earthing electrode is connected.
2.3.11 The unit shall be located in the same immediate area (such as adjacent cabinets) as any other equipment
that has a connection between the earthed conductor of the same DC supply circuit and the earthing
conductor, and also the point of earthing of the DC system. The DC system shall not be earthed elsewhere.
2.3.12 The DC supply source must be located within the same premises as the unit.
2.3.13 Switching or disconnecting devices shall not be in the earthed circuit conductor between the DC source and
the point of connection of the earthing electrode conductor.
2.3.14 This unit is intended for connection to a branch circuit with maximum 30A fuse protection.
  2.3.15 PleaseconrmthattheACinputbreakerissettotheOFFpositionbeforeconnecting/disconnectingtheAC
power. Do not touch theAC INPUT terminals other than with properly insulated tools so as to avoid electric
shock.Ensurethattheprotectivecoverhasbeencorrectlyttedafterinstallationorwhenanymaintenance
has taken place.
2.3.16 Protection in PRIMARY CIRCUITS against over currents, short circuits and earth faults shall be provided,
either as an integral part of the unit or as part of the building installation.
2.3.17 Aluminum conductors must not be used for protective earthing connections.
2.3.18 For supply connections, use wires suitable for at least 105°C since, from test results, cable temperatures
may exceed 90°C.
2.4 Quick Hook-up and Testing
2.4.1 Unpack and inspect the inverter. If any damage is visible do not proceed any further. Contact UNIPOWER
Customer Service immediately
Ensure that the power switch and the AC input breaker are in the OFF position.
2.4.2 Connect the cables to the power input terminals on the rear panel of the power inverter.
The red terminal is positive [+] and black terminal is negative [-].
Insert the cables into the terminals and tighten the Allen nut to clamp the wires securely.
WARNING!
You may observe a spark when you make this connection since
     currentmayowtochargecapacitorsinthepowerinverter.
     Donotmakethisconnectioninthepresenceofammablefumes.   
  Explosionorremayresult.
WARNING!
Make sure all the DC connections are tight (torque to 9-10 ft-lbs,
11.7-13Nm). Loose connections will overheat and could result in
a potential hazard.
2.4.3 If connecting to a utility or other AC supply make the L, N and FG connections after placing the supplied
safetycoverovertheACsupplycable.SeegureAbelow.

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 11 scimitar3000-man-rev1-0219.indd
   NotethatitwillbenecessarytoremovethetwoscrewsxingtheACinputconnectorinplaceandreplace
themwiththetwohexnutpillarssuppliedwiththesafetycoverbeforeitcanbetted.SeegureBbelow.
WARNING!
Connect to the utility supply only after the safety cover has
been installed.
2.4.4 Before proceeding further, carefully check that the cables you have just connected to the negative terminal
of inverter are connected to the negative DC power source.
CAUTION!
Reverse polarity connection will blow a fuse in inverter and may
permanently damage the inverter.
Damage caused by reversing polarity connection is not covered
by our warranty.
2.4.5 Set the power switch to the ON position. After a moment you will hear three beeps. At the same time, the
displayscrollstheword“UNIPOWER” twice. Afterthat,youwillhear acontinuoussoundfrominternal alarm.
When the AC output voltage shows on the display the unit will have completed the start-up sequence.
2.4.6 Set the power switch to the OFF position. The unit should shut down completely.
2.4.7 To accurately measure the true output R.M.S. voltage of inverter connect to one of the outlet sockets and
then set the power switch to ON. Voltage will appear at the output sockets after the start-up sequence is
completed.
2.5 Safety Grounding
During the AC wiring installation, AC input and output ground wires are connected to the inverter. The AC input ground
wire must be connected to the incoming ground from your AC utility source.
The AC output ground wire should go to the grounding point for your loads (for example, a distribution panel of bus
chassis).
2.5.1 Neutral Grounding - 120V models only.
The neutral conductor of the AC output circuit of the Inverter is connected to the safety ground during
inverter operation. This conforms to national electrical code requirements that separately derived AC
sources (such as inverters and generators) which have their neutral conductors tied to ground in the same
way that the neutral conductor from the utility is tied to ground at the GFCI breaker panel. When AC utility
power is connected and the inverter is in bypass mode, this connection (neutral of the Inverter’sAC output
to input safety ground) is not present so that the utility neutral is only connected to ground at your breaker
panel, as required.
AC Supply

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INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 12 scimitar3000-man-rev1-0219.indd
2.5.2 230V models only.
The neutral conductor of the AC output of the Inverter is connected to the safety ground during inverter
operation.
WARNING!
Do not operate this power inverter without connecting it to
Ground.
Electrical shock hazard may result.
CAUTION:
This equipment is designed to permit the connection of the
earthed conductor of the DC supply circuit to the earthing
conductor at the equipment.
If this connection is made, all of the following conditions must be met:
This equipment shall be connected to directly to the D.C. supply system earthing electrode conductor or to
a bonding jumper from an earthing terminal bar or bus to which the DC supply system earthing electrode
conductor is connected.
This equipment shall be located in the same immediate area (such as, adjacent cabinets) as any other
equipment that has a connection between the earthed conductor of the same D.C. supply circuit and the
earthing conductor, and also the point of earthing of the DC system. The DC system shall not be earthed
elsewhere.
The DC supply source is to be located within the same premises as the equipment.
Switching or disconnecting devices shall not be in the earthed circuit conductor between the DC source and
the point of connection of the earthing electrode conductor.
2.6 Making DC Connections
Follow this procedure to connect the battery cables or those from another DC source to the DC input terminals on the
Inverter. Your cables should be as short as possible (ideally, less than 10 feet / 3 meters) and large enough to handle the
required Current in accordance with the electrical codes or regulations applicable to your installation.
Cables that are not an adequate gauge (too narrow) or are too long will cause decreased inverter performance such as
poor surge capability and frequent low input voltage warnings and shutdowns.
These low input voltage warnings are due to DC voltage drop across the cables from the inverter to the batteries / other
DC source.
The longer and narrower these cables, the greater the voltage drop.
WARNING!
The installation of a fuse must be on the positive cable.
Failure to place a fuse on [+] cables running between the
inverter and battery or other DC source may cause damage
to the inverter and will void the warranty.
Connections must not be made when the DC source is live.
Increasing your DC cable size will help to improve the situation.

POWERING TECHNOLOGY
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INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 13 scimitar3000-man-rev1-0219.indd
UNIPOWER recommends the following cables for optimum inverter performance.
Model NUMBER Wire
Size In-line Fuse
INV1230R-B #4/0AWG 400A
INV1230RH-B
INV2430R-B #2/0 200A
INV2430RH-B
INV4830R-B #1/0 100A
INV4830RH-B
Use only high quality copper wiring and keep cable length from 3-6 feet (~1-2m).
A suitable breaker, at the DC source, for isolation and overload protection is recommend.
2.7 Alarm Connection
It is important to note that the electronic circuits associated with this function are directly connected within theAC output
circuits of the inverter and that for this reason the relay contact connections that are provided on the rear panel mounted
wire clamp connector MUST be considered to be at a non-SELV potential and all necessary precautions to protect the
operator from electric shock hazard must be taken.
These relay contacts must not be connected directly to any SELV or other safety connected circuit and any cables or
wiring used for such connections must be double insulated.
2.8 Inverter Operation
To operate the power inverter, turn it on using the ON/OFF switch on the front panel. The power inverter is now ready
to deliver AC power to your loads.
If you are operating several loads from the power inverter, turn them on separately after the inverter has been turned on.
This will ensure that the power inverter does not have to deliver the starting currents for all the loads at once.
CAUTION!
EXTERNAL SURFACES GET HOT.
During the period of the unit running, the case may become very
warm. Please do not touch the side marked. “ ” directly.
2.8.1 Controls and indicators:
  TheON/OFFswitchturnsthecontrolcircuitinthepowerinverteronando󰀨.
2.8.2 Output Voltage Indication
When the VDC LED is lit the display shows the Output Voltage
  WhentheunitisrstswitchedontheVACLEDislitandtheOutputVoltageisdisplayedasdescribed  
above.
Selection of the following parameters is achieved by pressing the Function Selector button to the right of
the display sequentially.
2.8.3 Output Current Indicator
When the AMP LED is lit the display shows the Output Current

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Manual No. SCIMITAR3000-1 Page 14 scimitar3000-man-rev1-0219.indd
2.8.4 Output Watts Indicator
When the WATTS LED is lit the display shows the Output Power in Watts
2.8.5 Input DC Voltage Indicator
When the VDC LED is lit the display shows the DC Input Voltage
2.8.6 Temperature Indicator
When the TEMP LED is lit the display shows the internal Operating Temperature
2.8.7 Output Frequency AC Indicator
When the Hz LED is lit the display shows the Output Frequency
The following table details the accuracy of measurement of the above mentioned display reading.
Function VAC AMP WATT VDC TEMP Hz
Range 100-120V
or
200-240V
0-30A 0-3KW 10-16V
20-32V
42-62V
0-50°C 50Hz
or
60Hz
Accuracy ± 1% 1% ± 0.5A ± 3% ± 2% ± 1% ± 0.01%
These inverters are designed to operate from the following input voltage ranges:
12V Models - 10.0 to 16.0VDC
24V Models - 20.0 to 32.0VDC
48V Models - 42.0 to 62.0VDC
High and low DC input voltage conditions are handled per the following table and described in
more detail below:
Model
Type DC input OVP shut-down DC input OVP alarm DC input UVP shut-down DC input UVP alarm
12VDC 16.0VDC 15.5VDC 10.5VDC 10.0VDC
24VDC 32.0VDC 31.0VDC 21.0VDC 20.0VDC
48VDC 62.0VDC 61.0VDC 43.0VDC 42.0VDC
2.8.8 Over voltage protection indicator: (OVP)
When OVP is indicated on the display the unit has shut itself down due to the input voltage exceeding the
limits shown above.
2.8.9 Under voltage protection indicator: (UVP)
When UVP is indicated on the display the unit has shut itself down due to the input voltage falling below the
limits shown above.
2.8.10 Over temp protection indicator: (OTP)
When OTP is indicated on the display the unit has shut itself down because it has become overheated.
The unit may overheat because it has been operated at power levels above its rating, or because it has
been installed in a location which does not allow it to dissipate heat properly. The unit will automatically
restartonceithascooledo󰀨.

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 15 scimitar3000-man-rev1-0219.indd
2.8.11 Overload protection indicator: (OLP)
When OLP is indicated on the display one of two conditions has occurred as follows:
a) For an overload condition approximately 110-120% of the WATTS rating of the unit and lasting up to
around 1 minute, an audible alarm will sound and the unit will continue to deliver power directly to the load.
If the overload condition continues the unit shuts itself down.
b) For a larger overload condition the unit shuts itself down immediately.
In both cases it is necessary to restart the unit once the overload has been removed.
In all of the above cases, if an AC utility supply is connected and the AC input breaker switched ON the load will be
automatically be transferred to the utility supply.
2.9 Cooling Fan Operation
The cooling fan management system monitors both the output power and internal temperature of the unit.
Thefanswillnotnormallyruniftheoutputpowerislessthan300W,unlesstheinternaltemperatureexceedsrecommended
norms.
In the event that the ventilation openings are obstructed the unit will enter over temperature protection mode (OTP) and
the cooling fan will continue to operate in order to reduce the internal temperature to a safe operating level. Once this
has been achieved the unit will turn on automatically.
3. Maintenance
Scimitar 3000 Series inverters require only minimal maintenance for reliable operation.
The exterior of the unit should be cleaned down periodically with a dry cloth to prevent accumulation of dust and dirt,
paying particular attention to the ventilation openings.
Also,theDCinputterminalconnectionsshouldbecheckedtoensurethattheyaresu󰀩cientlytight.
4. Troubleshooting Guide
WARNING!
Do not open or disassemble the inverter. Attempting to service
    theunityourselfmayresultinariskofelectricalshockorre.
Also, the warranty will be void in the event that any seals have
been broken or tampered with.
Scimitar 3000 Series inverters are designed to comply with all relevant EMI Regulations so long as they have been
correctly installed. If incorrectly installed interference with other electronic equipment in close proximity may occur.
• Make sure that the chassis ground lug at the rear of the unit is solidly connected to the ground system of the rack or
cabinet in which it is installed.
• Keep the cables between the battery or other DC source and the unit as short as possible and twist them together about
2 to 3 twists per foot. This will minimise radiated interference from the cables.
Problem and Symptoms Possible Cause Solution
Low output voltage
(120V : 95-105VAC)
(230V : 190-210VAC)
Incorrect type of voltmeter Use true RMS meter (See section 2.4.7)
Display indicates OLP Overload condition Reduce load

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 16 scimitar3000-man-rev1-0219.indd
No output voltage
Input voltage fault Low / High input voltage Recharge battery, check connections.
No output voltage
Display indicates OTP
Load <500W (1kVAunit)
Load <1000W (2kVAunit)
Thermal shutdown Ensure ventilation openings are clean and
not obstructed.
Improve ventilation.
Reduce ambient temperature.
No output voltage
Display indicates OLP Short circuit or wiring error
Excessive load
Check AC wiring for short circuit or
improper polarity (L and N reversed)
Remove load
5. Warranty (summary)
Scimitar 3000 Series inverters are warranted for two (2) years from date of shipment against defects in material and
workmanship. This warranty does not extend to products which have been opened, altered or repaired by persons other
than persons authorized by UNIPOWER or to products which become defective due to acts of God, negligence or the
failure of customer to fully follow instructions with respect to installation, application or maintenance.
ForacompletetextofUNIPOWER’swarrantyconditionspleaserequestacopyfromyourlocalSalesO󰀩ce.
6. Important Safety Instructions
WARNING!
Before installing and using this inverter, be sure to read these
safety instructions.
Keep them in a safe place for future reference.
6.1 General Safety Precautions
6.1.1 Do not expose the Inverter to rain, snow, spray or dust. To reduce risk of hazard, do not cover or obstruct
the ventilation openings. Do not install the Inverter in a zero-clearance compartment as overheating may
result.
  6.1.2 Toavoidariskofreandelectronicshock.Makesurethatexistingwiringisingoodelectricalcondition;and
that wire size is not undersized. Do not operate the Inverter with damaged or substandard wiring.
 6.1.3 Thisequipmentcontainscomponentswhichcanproducearcsorsparks.Topreventreorexplosiondonot
installincompartmentscontainingbatteriesorammablematerialsorinlocationswhererequireignition
protected equipment.
   This includes any space containing gasoline-powered machinery, fuel tanks, or joints, ttings, or other
connection between components of the fuel system.
6.2 Precautions When Working with Batteries
6.2.1 Ensure the installer is familiar with the material safety data sheet from the manufacturer of the batteries
concerning safe use and medical treatment.
  6.2.2 NEVERsmokeorallowasparkorameinthevicinityofbatteries.

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 17 scimitar3000-man-rev1-0219.indd
6.2.3 Do not drop a metal tool on the battery.The resulting sparks or short-circuit on the battery or other electrical
part may cause an explosion.
6.2.4 Removepersonalmetalitemssuchasrings,bracelets,necklaces,andwatcheswhenworkingwithbatteries.
Lead-acid batteries produces a short-circuit current high enough to weld a ring or the like to metal, causing
severe burn.
7. DIP switch settings & AC Voltage Adjustment
ThefollowtablesdenethevarioussettingsoftheDIPswitchesandvoltageadjustmentpotentiometermountedatthe
center of the front panel of the Inverter.
Note that when changes are made to the DIP switch settings it is necessary to recycle the power to the Inverter
to allow the internal microprocessor to read the new settings.
7.1 110V units
S1 FREQ. (Hz) S2 S3 BAUD RATE ACV ADJ
ON 60 * OFF OFF 2400
SCIMITAR
3000
OFF 50 OFF ON 4800 *
---- ---- ON OFF 9600
---- ---- ON ON 19200
* default setting as shipped.
7.2 230V units
S1 FREQ. (Hz) S2 S3 BAUD RATE ACV ADJ
ON 60 OFF OFF 2400
SCIMITAR
3000
OFF 50 * OFF ON 4800 *
---- ---- ON OFF 9600
---- ---- ON ON 19200
* default setting as shipped.
8. Communications Protocol & Remote ON/OFF Function
Scimitar 3000 Series inverters can communicate their status to a computer via an RS232 connection by sending a single
‘Status Inquiry’ Telnet command from the computer as follows.
UsingaTerminalprogrammesuchasHyperterminalcreateaprolewiththefollowingparameters:
Baud rate: to match setting on unit (default 2400)
Data bits: 8
Parity: none
Stop bits: 1
Flow control: none
From the properties tab (in Hyperterminal) settings and then ASCII and make sure that all boxes are checked with the
exception of ‘Force incoming data to 7-bit ASCII.
Makesuretheproleissavedforfutureuse.

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 18 scimitar3000-man-rev1-0219.indd
At the computer type: Q1<cr>
The inverter will respond as follows:
INV INV data stream, (MMM.M NNN.N PPP.P QQQ RR.R S.SS TT.T b7b6b5b4b3b2b1b0<cr>
INVERTERdata stream :
Thereshouldbeaspacecharacterbetweeneveryeldislistasfollowed:
a. Start byte : (
b. I/P voltage : MMM.M------------------------------(SPEC)
M is an integer number ranging from 0 to 9.
The unit is Volts.
c. I/P fault voltage : NNN.N------------------------------(SPEC)
N is an integer number ranging from 0 to 9.
The unit is Volts.
d. O/P voltage : PPP.P
P is an integer number ranging form 0 to 9.
The unit is Volts.
e. O/P current : QQQ
QQQ is a percent of maximum current, not an absolute value.
f. I/P frequency : RR.R
R is an integer number ranging from 0 to 9.
The unit is Hz.
g. DC voltage : SS.S or S.SS
S is an integer number ranging from 0 to 9.
The unit is Volts.
h. Temperature : TT.T
T is an integer number ranging form 0 to 9.
The unit is degrees centigrade.
i. INVERTER Status : <U>-----------------------(SPEC)
<U> is one byte of binary information such as <b7b6b5b4b3b2b1b0>.
Where bn is an ASCII character ‘0’ or ‘1’.
INVERTER status: Bit Description
7 1 : Utility Fail (Immediate)
6 1 : Battery Low
5 SPEC
4 SPEC
3 SPEC
2 SPEC
1 SPEC
0 SPEC
j. Stop Byte : <cr>

POWERING TECHNOLOGY
SCIMITAR 3000 SERIES
INSTALLATION & OPERATING MANUAL
Manual No. SCIMITAR3000-1 Page 19 scimitar3000-man-rev1-0219.indd
Please note that there are no user serviceable parts inside and that opening either will void the warranty.
Ifyouarestillunabletoresolveanyproblemsafterconsultingsection4ofthismanualpleasecallyournearestUNIPOWER
saleso󰀩ceforsupport:
Tel: NORTH AMERICA & CALA [phone] | EMEA [phone]
Email: customer[email protected]
This document is believed to be correct at time of publication and UNIPOWER LLC accepts no responsibility for
consequences from printing errors or inaccuracies. Specications are subject to change without notice.
Example : Computer : Q1<cr>
INVERTER Response : (208.4 140.0 208.4 034 59.9 54.2 35.0 00110000<cr>
Means : AC I/P voltage is 208.4V.-------------------------(SPEC)
AC I/P fault voltage is 140.0V.------------------(SPEC)
AC O/P voltage is 208.4V.
AC O/P current is 34%.
AC O/P frequency is 59.9 HZ.
DC I/P voltage is 54.2V.
Temperature is 35.0 degrees centigrade.
RS232 Hardware connection.
Note that only a 3 wire RS232 cable may be used otherwise damage may occur to the Inverter and/or the PC.
PC
GND
5
3
2
5
3
2
GND
TXD TX
RXD RX
INVERTER