Lowell UPS-XBDM-20RHW Guida
UPS-XBDM-20RHW
Bypass Distribuon Module
User & Installaon Manual
05-10-18
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
Page 2
Table of Contents
Introducon.................................................................................................6
Product Descripon......................................................................................6
Bypass Distribuon Descripon.......................................................................................................6
System Conguraon...................................................................................7
LED Descripon................................................................................................................................8
Hardware Installaon Guide.........................................................................9
Installaon.......................................................................................................................................9
Wiring and Connecng...............................................................................10
Inial Connecon..........................................................................................................................10
Startup Sequence..........................................................................................................................10
User’s Operaons.......................................................................................11
Normal Operaon..........................................................................................................................11
Bypass Operaon...........................................................................................................................11
Specicaons.............................................................................................12
Obtaining Service.......................................................................................13
Limited Warranty........................................................................................14
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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Thank you for selecng the UPS-XBDM-20RHW bypass distribuon module. It is designed to work in conjuncon
with a UPS to provide protecon for connected equipment. Please read this manual before installing the UPS-
XBDM-20RHW as it provides important informaon that should be followed during installaon to allow you to
correctly set up your system for maximum safety and performance. Included is informaon on customer support
and service. If you experience a problem with the XBDM, please contact technical support.
WARNING: Incorrect installaon, operaon, and/or modicaons made to the XBDM will void the manufacturer’s
warranty. Lowell Manufacturing Company is not liable for personnel or equipment damages as a result.
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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IMPORTANT SAFETY INSTRUCTIONS: (SAVE THESE INSTRUCTIONS)
CAUTION! Two sources of power are present in the XBDM: UPS power and Ulity power.
CAUTION! (UPS has Internal Baeries): Risk of electrical shock – Hazardous live parts inside the UPS are energized
from the baery supply even when the input AC power is disconnected.
CAUTION! (No User serviceable Parts): Risk of electrical shock, do not remove cover. No user serviceable parts
inside. Refer servicing to qualied service personnel.
WARNING! Unit intended for installaon in a controlled environment per installaon instrucons.
CAUTION! If ammable substances such as gases or fumes are present, or if the room is airght, a hazardous situ-
aon may exist in which no electrical equipment should be operated.
WARNING!
It is strongly recommended that the XBDM not be opened as components have very high voltage and
touching those components may be fatal. Only a qualied technician or authorized agent may service the
unit.
The XBDM unit’s output receptacles can carry live voltage even when not connected to an input voltage
source. The UPS has its own internal energy source.
CAUTION!
The unit has a dangerous amount of voltage. If either the UPS or BYPASS indicator is on, the unit’s outlets
may have a dangerous amount of voltage even when not plugged into the wall outlet because the baery
from the UPS may connue to supply power.
For indoor use in temperature and humidity-controlled environments only.
Not for use where explosive and/or electrically conducve airborne contaminants or dust are present
(including but not limited to coal dust, metal grinding dust, grain processing dust, etc.).
It is best to disconnect the device using the power supply cord. Ensure that the equipment is placed in a
posion near the outlet where easily accessible.
All servicing on this equipment must be carried out by qualied service personnel.
The Bypass Distribuon Module (XBDM) is intended to allow replacement of the UPS connected without
having to shut down the equipment connected to the load circuits on the XBDM. Cauon should be ob-
served as the XBDM is always supplied with power by either the UPS or UTILITY.
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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Environment
Ensure that all environmental concerns and requirements are met according to specicaons listed in
this document, otherwise the safety of installaon personnel cannot be guaranteed, and the unit may
malfuncon.
Ensure that you remember the following when locang the XBDM:
• Avoid extremes of temperature and humidity.
»Operang temperature: 0°C to +50°C (+32° to +122° F)
»Operang elevaon: 0 to 3000m (0-10,0000 )
»Relave humidity: 0-90%, non-condensing
»Storage temperature: 0-65° C (+32 to +149° F)
»Storage elevaon: 0 to 15,000m (0 to +50,000 )
• Provide protecon for the equipment from moisture.
• Space and venlaon requirements must be met.
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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Introducon
The informaon provided in this manual covers single phase hardwired 20A bypass distribuon module, its basic
funcons, operang procedures, opons available and emergency situaons. It also includes informaon on how
to ship, store, handle, and install the equipment. Only detailed requirements of the XBDM unit are described
herein, and installaon must be carried out in accordance with this manual. Refer to the associated UPS manual for
UPS operang instrucons. Electrical installaon must also carefully follow local legislaon and regulaons. Only
qualied personnel should conduct these installaons as failure to acknowledge electrical hazards could prove to
be fatal.
Product Descripon
Many dierent kinds of sensive electrical equipment can be protected by an Uninterrupble Power Supply (UPS)
including computers, workstaons, process control systems, telecommunicaons systems, sales terminals, other
crical instrumentaon, etc. The purpose of the XBDM is to provide an extra level of protecon in allowing for the
replacement of a UPS without powering down the loads connected. The XBDM can work with most single phase
topologies. It will not work with topologies that have a phase shi between input and output (like ferro of UPS
with an isolaon transformer).
Electrical interference exists in many forms, causing problems in AC power, from lightning, power company ac-
cidents and radio transmission motors, air condioners, and vending machines. Protecon of sensive electrical
equipment is vital to protect against power outages, low or high voltage condions, slow voltage uctuaons,
frequency variaons, dierenal and common-mode noise, transients, etc.
To prevent power line problems from reaching crical systems causing damage to soware, hardware, and equip-
ment malfuncons, a UPS maintains constant voltage, isolang crical load output and cleaning the ulity AC pow-
er. When the UPS fails or needs maintenance, many mes it is necessary to turn o the UPS and disconnect it from
incoming electrical circuits. With the XBDM installed between the incoming Ulity and the UPS, you can replace
the UPS and/or Baeries without dropping the load. You simply switch the XBDM from UPS power to Ulity power
and remove the UPS while the load connected to the XBDM connues to operate temporarily from Ulity power.
Bypass Distribuon Descripon
The Bypass Distribuon Module (XBDM) is designed to operate with a single-phase UPS up to 20Amps in output
capacity. The XBDM allows you to:
• Replace or upgrade the UPS without losing power to the protected equipment
• Provide surge protecon if the UPS is not present
• Provide extra surge protecon when the UPS is present
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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NORMAL OPERATION shown in the block diagram below:
• Under normal operaon, the UTILITY INPUT ows through the XBDM to the UPS and then out to the CON-
NECTED LOADS.
Block Diagram with UPS
MAINTENANCE OPERATION shown in the block diagram below:
• Under maintenance operaon, the UTILITY INPUT ows through the XBDM to the CONNECTED LOADS –
the UPS is not in the circuit.
Block Diagram without UPS
System Conguraon
Front View
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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LED Descripon
The XBDM has three LED’s on the front control panel. These LED’s allow the user to quickly understand the status
of the unit.
Red LED = UPS power is available
Orange LED = Ulity is available for Bypass operaon
Green LED = Surge Protecon is available.
XBDM Front Panel LEDs
CAUTION: The Orange LED must be illuminated before transferring to BYPASS power.
The Red LED must be illuminated before transferring to UPS power.
XBDM Front Panel Bypass Switch
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UPS-XBDM-20RHW Manual
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Hardware Installaon Guide
Inspect the XBDM upon receipt. The packaging is recyclable; keep it for reuse or dispose of properly.
Installaon
The XBDM supports horizontal (1U) rackmount and vercal rackmount installaon.
Horizontal Installaon (1U)
1. Aach the two (2) XBDM horizontal mounng brackets (included) on each end of the XBDM using four (4)
retaining screws (included).
2. Install the XBDM in a suitable horizontal locaon in the rack rail using four (4) user-provided mounng screws.
Vercal Installaon
1. Aach the two (2) XBDM horizontal mounng brackets (included) on each end of the XBDM using four (4)
retaining screws (included).
2. Aach the two vercal mounng brackets (included) to the horizontal rack mounng brackets on each end of
the XBDM using four (4) retaining screws (included).
3. Install the XBDM in a suitable vercal locaon on the side of the rack rail with four (4) user provided mounng
screws.
Lowell Manufacturing Company | 05-10-18
UPS-XBDM-20RHW Manual
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Wiring and Connecng
Inial Connecon
1. The UPS-XBDM-20RHW is a hardwired input and output Bypass Distribuon Module. It must be installed in
conjuncon with all local electrical codes, with work performed by a licensed electrician.
2. All connecons should be completed prior to providing input ulity power to the UPS-XBDM-20RHW.
3. Input and Output wiring to the UPS-XBDM-20RHW should be routed through the terminal box knockout. The
terminal box cover can be removed for ease of conduit connecon and wire roung.
Input and Output Roung
4. Please refer to the drawing below for input and output wiring terminal locaons.
Terminal Block View
Startup Sequence
1. Turn the UPS OFF in accordance with UPS manufacturers’ documentaon. Verify the correct wiring to the
XBDM prior to proceeding to step 2.
2. Unplug the UPS from ulity source. Depending on the model of UPS it may take a few seconds for the UPS
to completely shut down. All indicators on the UPS front panel should shutdown.
3. Disconnect the protected equipment power cord(s) from the UPS.
4. Verify that the BYPASS switch on the XBDM is in the UPS posion.
5. Energize the circuit breaker providing input ulity to the UPS-XBDM-20RHW from a properly sized distribu-
on panel.
The orange bypass available light should illuminate on the Bypass Distribuon Module.
6. Plug the UPS INPUT cord into the 5-20R receptacle labeled FOR UPS INPUT on the rear of the UPS-XBDM-
20RHW.
7. Connect the UPS output receptacle to the UPS-XBDM-20RHW C20 plug labeled UPS OUTPUT using the
appropriate 20A cord supplied with the UPS-XBDM-20RHW.
8. Assure that the distribuon for the loads to be connected to the UPS-XBDM-20RHW is properly connected
to the UPS-XBDM-20RHW.
9. Press the ON BUTTON on the UPS. All indicators on the UPS should operate normally. The red UPS avail-
able light should illuminate on the Bypass Distribuon Module. Power should now be supplied to the
equipment connected to the UPS via the UPS-XBDM-20RHW.
Indice
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