Xtreme Power Conversion M90S Series Guide

M90S Online Split-Phase UPS
6kVA, 12kVA, 18kVA, 24kVA Models
User & Installaon Manual
www.xpcc.com | © 2019 Xtreme Power Conversion Corporaon. All rights reserved. (Rev 1/14/19)

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 2
Uninterrupble Power Supply
Table of Contents
1 Safety ...................................................................................................... 4
2 Installaon. ..............................................................................................5
2.1 Inial Inspecon. ......................................................................................................................5
2.2 Installaon Environment.......................................................................................................... 5
2.3 Unpacking. ............................................................................................................................... 6
2.4 Moving the Cabinet ................................................................................................................. 8
2.5 Model Conguraon ................................................................................................................ 9
2.6 Exterior .................................................................................................................................... 9
2.7 Internal Mechanisms ............................................................................................................. 15
2.8 Power Cable .......................................................................................................................... 16
2.9 Wiring .................................................................................................................................... 17
2.10 2 Slot Rackmount Chassis Installaon .................................................................................. 18
2.11 Power Module/Baery Pack Installaon ............................................................................. 18
3 Control Panel and Power Module LCD Descripons ................................ 19
3.1 Control Panel .......................................................................................................................... 19
3.2 Power Module ........................................................................................................................ 21
3.3 UPS System Funconal Descripon ....................................................................................... 23
4 Operaon .............................................................................................. 27
4.1 AC Startup .............................................................................................................................. 27
4.2 Cold Start Startup (Start up with no AC Power Pressed) ....................................................... 29
4.3 Turn O Operaon ................................................................................................................. 31
4.4 Baery Mode Turn O Operaon .......................................................................................... 34
4.5 Maintenance Bypass Switch Operaon .................................................................................. 35
5 Control Panel and Display Descripon .................................................... 37
5.1 System 5.7” LCD Screen Descripon ...................................................................................... 37
5.2 Setup-General Screen ............................................................................................................ 46
5.3 LCD Screen in UPS Module ......................................................................................................47
5.4 Operaon Menu..................................................................................................................... 66

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 3
Uninterrupble Power Supply
5.5 Controller Module .................................................................................................................. 79
5.6 Baery Start Buon ............................................................................................................... 79
5.7 Output Dry Contact Port ......................................................................................................... 80
5.8 Conguraon ......................................................................................................................... 80
5.9 Input Dry Contact Port ........................................................................................................... 83
5.10 Baery Dry Contact .............................................................................................................. 83
5.11 EPO Port ............................................................................................................................... 84
5.12 External Maintenance Bypass Signal Port (EMBS) ................................................................ 84
5.13 Other Communicaon Interfaces ........................................................................................ 85
6 Service. .................................................................................................. 85
6.1 UPS Module Replacement ...................................................................................................... 85
7 Troubleshoong ..................................................................................... 86
7.1 UPS Fault Code Descripons .................................................................................................. 86
7.2 Control Panel Audible Alarms ............................................................................................... 89
8 Specicaons ........................................................................................ 90
9 Obtaining Service................................................................................... 92
10 Xtreme Power Conversion Limited Warranty ........................................ 93
11 Xtreme Power Conversion Load Protecon Policy. ............................... 94

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 4
Uninterrupble Power Supply
1 Safety
1.1 Important Safety Instrucons
This UPS contains LETHAL VOLTAGES. All repairs and service must be performed by AUTHORIZED SERVICE PERSON-
NEL ONLY. There are NO USER SERVICEABLE PARTS inside the UPS.
WARNING:
• The UPS designed for commercial and industrial purpose, it is forbidden to apply for any life sustainment
and support.
• The UPS system contains its own energy source. The output terminals may carry live voltage even when
UPS is disconnected to an AC source.
• To reduce the risk of re or electrical shock, UPS installaon has to be in a controlled room where tem-
perature and humidity are monitored. Ambient temperature must not exceed 40°C. The system is only for
indoor use.
• Ensure all power is disconnected before installaon or service.
• Service and maintenance should be performed by qualied personnel only.
Before working on this circuit
• Isolate Uninterrupble Power System (UPS).
• Then check for Hazardous Voltage between all terminals including the protecve earth.
Risk of Voltage Backfeed
The isolaon device must be able to carry the UPS input current.
1.2 EMC
WARNING:
This is a product for commercial and industrial applicaon in the second environment - installaon restricons or
addional measures may be needed to prevent disturbances.
1.3 Installaon Informaon
WARNING:
• Installaon must be performed by qualied personnel only.
• The cabinets must be installed on a level oor suitable for computer or electronic equipment.
• The UPS cabinet is heavy. If unloading instrucons are not closely followed, cabinet may cause serious
injury.
• Do not lt the cabinets more than 10 degree.
• Before applying electrical power to the UPS, make sure the Ground conductor is properly installed.
• Installaon and Wiring must be performed in accordance with the local electrical laws and regulaons.
• The disconnecon device should be chosen based on the input current.
1.4 Maintenance
• Only qualied service personnel should perform the baery installaon.
• The following PRECAUTIONS should be observed:
1. Remove watches, rings, or other metal objects.Use tools with insulated handles.
2. Wear rubber gloves and boots.
3. Do not lay tools or metal parts on top of baeries or baery cabinets.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 5
Uninterrupble Power Supply
4. Disconnect the charging source prior to connecng or disconnecng terminal.
5. Check if the baery is inadvertently grounded. If it is, remove the source of grounding. Contacng
with any part of the ground might result in electrical shock. The likelihood of such shock can be
prevented if such grounds are removed during installaon and maintenance.
• UPS is designed to supply power even when disconnected from the ulity power. Aer disconnect the ul-
ity and DC power, authorized service personnel should aempt internal access to the UPS.
• Do not disconnect the baeries while the UPS is in Baery mode.
• Disconnect the charging source prior to connecng or disconnecng terminals.
• Baeries can result in a risk of electrical shock or burn from high short circuit current.
• When replacing baeries, use the same number of sealed, lead-acid baeries.
• Do not open or mulate the baery. Release electrolyte is harmful to the skin and eyes, and may be toxic.
1.5 Recycling the Used Baery
• Do not dispose of the baery in a re. Baery may explode. Proper disposal of baery is required. Refer
to your local codes for disposal requirements.
• Do not open or mulate the baery. Released electrolyte is harmful to the skin and eyes. It may be toxic.
• Do not discard the UPS or the UPS baeries in the trash. This product contains sealed, lead-acid baeries
and must be disposed properly. For more informaon, contact your local recycling/reuse or hazardous
waste center.
• Do not discard waste electrical or electronic equipment (WEEE) in the trash. For proper disposal, contact
your local recycling/reuse or hazardous waste center.
2 Installaon
2.1 Inial Inspecon
1. Visually examine if there is any damage inside and outside of packages in the process of the transportaon. If
any damage, report it to the carrier immediately.
2. Verify the product label and conrm the consistency of the equipment.
3. If the equipment needs to be returned, carefully repack the equipment by using the original packing material
that came with.
2.2 Installaon Environment
1. The UPS is designed for indoor use only and should be located in a clean environment with adequate venla-
on to keep the environmental parameters within the required specicaon.
2. Make sure that transportaon routes (e.g. corridor, door gate, elevator, etc.) and installaon area can accom-
modate and bear the weight of the UPS, the external baery cabinet and handling equipment.
3. The UPS uses forced convecon cooling by internal fans. Cooling air enters the module through venlaon
grills located at the front of the cabinet and exhausted through grills located in the rear part of the cabinet.
Please do not block the venlaon holes.
4. Ensure that the installaon area is spacious for maintenance and venlaon.
5. Keep the temperature of installaon area around 30°C and humidity within 90%. The highest operang al-
tude is 1000 meters above sea level.
6. If necessary, install a system of room extractor fans to avoid formaon of room temperature. Air lters are
necessary if the UPS is operated in a dusty environment.
7. It is recommended that you parallel the external baery cabinets to the UPS. The following instrucons of
clearances are suggested:
• Keep a clearance of 40” from the top of the UPS for maintenance, wiring and venlaon.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 6
Uninterrupble Power Supply
• Keep a clearance of 40” from the back of the UPS and the external baery cabinets for venlaon.
• Keep a clearance of 60” from the front of the UPS and the external baery cabinets for maintenance and
venlaon.
8. For safety concerns, we suggest that you shall:
• Equip with CO2 or dry powder re exnguishers near the installaon area.
• Install the UPS in an area where the walls, oors and ceilings were constructed by reproof materials.
9. Do not allow unauthorized personnel to enter the installaon area. Assign specic personnel to keep the UPS
key.
2.3 Unpacking
1. Use a forkli to move the product to installed area. Please make sure the bearing capacity of forkli is suf-
cient.
2. Please follow the order in the gures below to remove carton and foams.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 7
Uninterrupble Power Supply
1
2
3
3. Remove 2 xing cabinet plates and loosen leveling feet by rotang them counterclockwise. Then, move the
cabinet from the pallet.
4. To x the cabinet in posion, simply rotate leveling feet clockwise.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 8
Uninterrupble Power Supply
2.4 Moving the Cabinet
The UPS is screwed to the pallet with 2 mounng brackets. When removing it, pay aenon to the movement of
the casters to avoid accidents. The cabinet can be pushed forward or backward only. Pushing it sideward is not al-
lowed. When pushing the cabinet, pay aenon to the gravity center so as not to turn over the UPS.
1. If you need to move the UPS over a long distance, please use appropriate equipment like a forkli. Do not use
the UPS casters to move over a long distance.
2. Aer the UPS has been removed from the pallet to the oor, we suggest that at least three people move the
UPS to the installaon area. One person holds a lateral side of the UPS with hands, another holds the other
lateral side of the UPS with hands, and the other person pushes the UPS either from the front side or from the
back side to the installaon area to avoid pping the UPS.
3. The casters are designed to move on level ground. Do not move the UPS on an uneven surface. This might
cause damage to the casters. Toppling the UPS could also damage the unit.
4. Ensure that the weight of UPS is within the designated bearing capacity of any handling equipment.
5. At the boom of the UPS, the four casters help you to move the UPS to a designated area. Before you move the
UPS, please turn the four leveling feet counterclockwise to raise them o the ground. This protects the leveling
feet from damage when moving the UPS.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 9
Uninterrupble Power Supply
2.5 Model Conguraon
There are four conguraons:
With Baeries Without Baeries
Photo
UPS
Module
#
Max of 1
(Slot 1 ONLY)
Max of 2
(Slots 1 and 2 ONLY)
Max of 4
(Slots 1-4 ONLY) 0
Baery
Module
#
Max of 1 Max of 3 Max of 5 Max of 7
Cabinet
Height 10.5” (6U) 33.25” (19U) 45.5” (26U) 45.5” (26U)
2.6 Exterior
In the front of the UPS, there are control interface LCD Panel (4 and 6 slot chassis). Power Module slots and Baery
Module slots. A wiring terminal blocks, circuit breakers, communicaon slots (4 and 6 slot chassis), communicaon
ports are located at the back of cabinet. The side panels are locked by screws. The casters at the boom of the UPS
cabinet can be used to move the UPS for short distances. There are four leveling feet to x and stabilize the UPS
cabinet on the ground.
NOTE: The two slot chassis is intended to mount in a rack and doesn’t have casters or leveling feet.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 10
Uninterrupble Power Supply
2 Slot M90S
4 Slot M90S

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 11
Uninterrupble Power Supply
6 Slot M90S
10. USB port
11. Intelligent slot
12. Emergency power o port
13. AC input breaker
14. AC output breaker
15. AC terminal
16. Output receptacles (oponal)
17. External baery terminal
18. Maintenance bypass switch
19. DC Disconnect Switch
1. Control panel
2. Power module
3. LCD display on
Power module
4. Baery module
5. Leveling foot
6. Caster
7. Controller module
8. Dry contact
9. RS-232 port

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 12
Uninterrupble Power Supply
Controller Module
2.6.1 Mechanical Data
Dimensions
UPS cabinet Width Depth Height
2 Slot 17.36” 30.59” 10.51”
4 Slot 17.44” 33.74” 33.07”
6 Slot 17.44” 33.74” 45.43”
7 Slot Baery 17.44” 32.79” 45.43”
6U Rack
2 Slot Chassis

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 13
Uninterrupble Power Supply
4 Slot Chassis
6 Slot Chassis

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 14
Uninterrupble Power Supply
7 Slot Baery Pack
2.6.2 Front / Rear Open View
Front open view: Aer removing panel covers, you will see the empty module slots and control panel.
Rear open view: You will see the breakers, terminal blocks, receptacle panels, and communicaon ports installed
on the cabinet.
Front View Rear View
1. Control panel
2. Power/baery module slots
3. Communicaon port
4. AC terminals
5. DC terminals
6. AC breakers

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 15
Uninterrupble Power Supply
2.7 Internal Mechanisms
2.7.1 Breakers
At the rear panel of the cabinet, you can see AC Input/Output breakers. Refer to the diagram below.
Rear View/Output, and Input Breakers
2.7.2 Wiring Terminal Blocks
Remove all panel covers and you will see the wiring terminal block for the UPS input/output wiring, please check
below chart and table.
Terminal Block Descripons
Item Funcon Descripon
AC
Terminal
Output Block (O/P-L1, O/P-L2,
O/P-N)
Connects the cri-
cal loads Includes L1, L2 and Neutral terminals.
AC Input Block (R, T,
N)
Connects main AC
source Includes L1, L2 and Neutral terminals.
For UPS Grounding
(PE) For UPS grounding Includes one grounding terminal - PE.
DC
Terminal
DC Terminal Block
(BAT+, BAT-N, BAT-)
Connects an
external baery
pack
Includes
Posive (+), Negave (-) and Neutral
(N) terminals.
AC Terminal DC Terminal

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 16
Uninterrupble Power Supply
2.8 Power Cable
Please follow the local wiring regulaons. Follow environmental condions and refer to IEC60950-1.
2.8.1 AC input and output maximum current, recommended OCPD, and power cable conguraon.
AC Input
Model 6kVA 12kVA 18kVA 24kVA
Current (A) 35 71 106 141
Recommended OCPD 45 90 130 175
Power cable AWG (mm2) 8 (4) 6 (10) 4 (21) 2 (35)
Torque force (lb-in) 20 20 20 20
AC Output
Model 6kVA 12kVA 18kVA 24kVA
Current (A) 28.9 57.7 86.6 115.4
Recommended OCPD 40 75 110 150
Power cable AWG (mm2) 8 (4) 6 (10) 4 (21) 2 (35)
Torque force (lb-in) 20 20 20 20
2.8.2 DC input maximum current and power cable conguraon.
Model 6kVA 12kVA 18kVA 24kVA
Current (A) 41.6 83.2 124.8 166.3
Power cable AWG (mm2) 6 (10) 4 (21) 2 (35) 1/0 (50)
Torque force (lb-in) 20 20 20 20
Warning:
1. One standard baery module contains 16 pcs of 12V 580W baeries (8 pcs Pos+/8pcs Neg-). One baery mod-
ule is capable of supplying enough current for two power modules. You must install at least one baery module
per two power modules. You may install a maximum of 8 baery modules per power module.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 17
Uninterrupble Power Supply
2.9 Wiring
• WARNING:
• Before wiring, make sure the AC input and baery power are completely cut o.
• Make sure the breakers, including AC input breaker, AC output breaker and DC breaker, are all in the OFF
posion.
• If installing two slot chassis please ensure chassis is installed in rack before wiring is installed. (Refer to
secon 2.11).
2.9.1 Installaon Drawing
UPS Chassis Wiring
2.9.2 AC source connecon
Connect AC input to the AC power source. Please refer to Installaon Drawing for UPS wiring.
The polarity of two phase (L1 phase and L2 phase) are not crical. The wrong polarity will not cause an alarm for
UPS system when the UPS is powered.
The Neutral wire must be connected properly. A warning message will be indicated if the Neutral wire is not con-
nected properly. The UPS will show warning message as “Warning! Bypass Input N Error”. Then the UPS will trans-
fer to baery mode if baery pack is connected or transfer to standby mode and no output if no baery pack is
connected.
2.9.3 External Baery Pack Connecon

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 18
Uninterrupble Power Supply
Aer the baery pack is completely installed, be sure to set up nominal baery voltage, baery capacity and maxi-
mum charging current in LCD seng. Otherwise, if baery seng is dierent from actual installaon, the UPS will
keep alarming. Please refer to secon 5.1.2 baery seng list for details.
2.10 2 Slot Rackmount Chassis Installaon
Step 1: Install included rail kits into user supplied rack.
Step 2: Install 2 slot chassis on top of installed rail kit in rack. Secure two slot chassis with included brackets and
screws.
Step 3: Install power module into top slot of 2 slot chassis.
Step 4: Install baery module into boom slot of 2 slot chassis.
Step 5: Connect input and output electrical wiring to terminal block on rear of 2 slot chassis. (Refer to secon 2-10)
2.11 Power Module/Baery Pack Installaon
2.11.1 Insert the power module
Warning: The power modules installed in the same cabinet must be at the same rang. (1) Insert the power mod-
ule into an unoccupied slot by two persons.
NOTE: The power module must be inserted into a universal slot.
2. Secure the UPS module to the cabinet by xing the screws at the front panel of the UPS
module.
Universal Slots
2 Slot Chassis Upper Slot
4 Slot Chassis Upper 2 Slots
6 Slot Chassis Upper 4 Slots

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 19
Uninterrupble Power Supply
2.11.2 Remove the UPS module
Warning:
Before removing any power module, make sure the remaining power modules can support the crical loads.
At least one power module MUST stay in the UPS cabinet in case the UPS system is operang in Maintenance Bypass Mode. (1.)
(1.) Use a screwdriver to remove the four screws from xing holes.
(2.) Two people pull out together and remove the UPS module from its slot.
2.11.3 Baery Module Installaon/Removal
Please follow power module installaon/removal steps to install and remove baery packs.
NOTE: Baery modules can be installed in any slot.

Xtreme Power Conversion Corporaon
M90S-4S User’s Manual
Page 20
Uninterrupble Power Supply
3. Control Panel and Power Module LCD Descripons
3.1 Control Panel
In front panel, there is a control panel to monitor and control the whole system, including LCD display, 4 LED
indicators and 6 funcon keys.
3.1.1 LED Indicators
Mode BYPASS LINE BATTERY ALARM
UPS Power On ● ● ● ●
Standby mode ○ ○ ○ ○
Bypass mode ● ○ ○ ○
Line mode / Converter mode ○ ● ○ ○
Baery mode ○ ○ ● ○
Fault mode ○ ○ ○ ●
Baery Test mode ○ ● ● ○
ECO mode ● ● ○ ○
Note:● means LED is lighng, and ○ means LED is faded.
3.1.2 Funcon Keys
Control Key Descripon
Esc
• When it is the Main screen, you can enter menu by pressing ESC key.
• Return to previous screen, when screen is not in Main screen.
• Return to previous value in the same row, so you can change it. For example, when
• changing 4-digit password, press “Esc” to allow cursor back to previous digit.
• Silence alarm by pressing and holding “Esc” for 3 seconds.
(Up) (Le) Key for menu page navigaon or digit modicaon.
(Down) (Right) Key for menu page navigaon or digit modicaon.