Unipower Sageon Micro Power Module User manual

Sageon®Micro Power Module
Product Manual
PM 990-4207-00, Rev 6
UNIPOWER, LLC
65 Industrial Park Rd
Dunlap, TN 37327
Phone: [phone]
Toll Free: 1-800-440-3504
Web site – www.unipowerco.com

Front Matter Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
i
Rack Mounted Sageon Micro Power Shelf Module
Transporting and Seismic Statement
1.0 Transporting the Rack Mounted Sageon Micro Power Module Shelf.
1.1 The Power shelf is initially installed into a standard 19” rack (23” rack with extension plates)
without either the Controller or the Micro Sageon Rectifiers in place.
1.2 The Controller and Rectifiers must be packaged separately (not installed in the rack) when the
rack is being transported via ground or air. The system is not designed for the Controller or
Rectifiers to be transported while mounted to the Power shelf.
1.3 The Controller and Rectifiers must not be installed in the rack while the rack is being handled and
positioned into its designated “on-site” final location.
1.4 It is standard procedure for the rack, with Power shelf assembled (without either Controller or
Rectifiers installed), to be transported in a vertical position.
1.5 Transporting a crated rack system in a horizontal position is acceptable when the rack height
exceeds the standard trailer height. The Controller and Rectifiers must be packaged separately (not
installed in the rack) when the rack is being transported via ground or air.
2.0 Mounting the Power Shelf to a Rack On-Site.
2.1 The Power shelf mounts into a standard 19” rack using 12-24 screws. A minimum of four screws
are required to secure the Power shelf into the rack. It is recommended to initially install the
Power shelf into the rack without either the Controller or the Micro Sageon rectifiers in place.
3.0 Seismic Statement.
3.1 The Sageon Micro Power Module and/or the Rack Mounted Shelf design does not include, either
in the construction or in the assembly, the ability to withstand the lateral seismic forces or seismic
loading induced by earthquakes.

Front Matter Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
ii
RECEIVING INSTRUCTIONS
and
GENERAL EQUIPMENT INFORMATION
Please Note: For your protection, this product manual should be read and
thoroughly understood before unpacking, installing, using, or servicing the
described equipment.
UNIPOWER, LLC presents all equipment to the delivering carrier securely packed and
ready for transport. Upon acceptance of the equipment from us, the delivering carrier
assumes responsibility for its safe delivery to you. Once you receive the equipment, it is
your responsibility to document any damage to the equipment that was sustained during
transport to you and to file your claim with the carrier promptly and accurately.
PACKAGE INSPECTION
Examine the shipping container for any visible damage: punctures, dents, and any other signs of possible internal
damage.
Describe any damage or shortage on the receiving documents and have the carrier’s representative sign his/her full
name.
If you're receiving freight bill notes that a Tip-N-Tell is attached to your freight, locate the indicator and note the
color of the arrow. If the Tip-N-Tell arrow has turned even partially blue, this means the freight has been tipped in
transport. Make sure the carrier notes this on your receipt before you sign for the freight.
EQUIPMENT INSPECTION
Promptly upon receipt of shipment, open the container and inspect the contents for damage. If it is necessary to
move or otherwise handle the shipment, refer to the next section, Handling, for instructions and warnings.
Unpack the shipment carefully to avoid scratching or otherwise marring the exterior finish. Be careful not to discard
any included equipment, parts, or manuals. If damage is detected, call the delivering carrier to determine
appropriate action. The carrier may require an inspection.
IMPORTANT: If damage is detected, save all shipping material for the carrier’s representative!
If damage is detected, also notify UNIPOWER; contact information is in the Product Support section. UNIPOWER
will determine if the equipment should be returned for repair. If it is determined that the equipment should be
returned to UNIPOWER, ask the delivering carrier to send the packages back to UNIPOWER at the delivering
carrier’s expense. Be sure that the equipment is properly packaged for shipment.
If repair is necessary, UNIPOWER will invoice you for the repair so that you may submit the bill to the delivering
carrier with your claim form.
It is your responsibility to file a claim with the delivering carrier. Failure to properly file a claim for shipping
damages may void warranty service for any physical damages later reported for repair.
HANDLING
The Power Module is moderate in weight. Use sufficient personnel and power equipment to ensure safe handling.
Use extreme care in handling and unpacking the Power Module. Refer to section 3.1 for Mounting the Power Shelf.

Front Matter Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
iii
NAMEPLATE
A UNIPOWER product is identified by a nameplate that includes model number, part number, and serial number
information, as appropriate. Please include this information, shown in italic in the label drawing below, in all
correspondence with UNIPOWER. A sample nameplate is shown below.
225.8001.00
SAGEON POWER MODULE
PART NUMBER: 111-4219-24
INPUT RATING: 208-240VAC, 18A max,
45-55Hz (each rectifier)
OUTPUT RATING: 24V, 400A
SERIAL #: D5S0412345
INITIAL SETTINGS
All equipment is shipped from the factory fully inspected and adjusted. Read the technical reference or product
manual before installing or making any adjustments.

Front Matter Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
iv
REVISION HISTORY
Rev Description
Checked & Approved by
/ Date
6
See PCO# 45389
CJM / 8-8-19
QUALIFIED PERSONNEL
The equipment described within this manual should be installed, configured, operated and serviced only by qualified
personnel thoroughly familiar with:
•This Product Manual and any documents referenced in this manual
•Current revisions of applicable national (e.g. National Electrical Code) and local codes
•Applicable on-site procedures, licensing requirements, and safety requirements
DOCUMENT SUMMARY
This product manual provides installation, operation, maintenance, and troubleshooting procedures for the
UNIPOWER Sageon Micro Module (SPM) and its optional components, the Sageon Micro Module Expansion
(SPME) and the Sageon Micro Module Distribution (SPMD). It consists of twelve chapters with a packet of
drawings following the text. The drawings supplement the provided descriptions and procedures.
Thank you for purchasing the Sageon Micro Power Module. We at UNIPOWER are proud of the quality of our
products and welcome any suggestions to further improve our design to fit your needs.
PROPRIETARY AND CONFIDENTIAL
The information contained in this product manual is the sole property of UNIPOWER, LLC. Reproduction of the
manual or any portion of the manual without the written permission of UNIPOWER, LLC is prohibited.
DISCLAIMER
Data, descriptions, and specifications presented herein are subject to revision by UNIPOWER, LLC1without notice.
While such information is believed to be accurate as indicated herein, UNIPOWER, LLC makes no warranty and
hereby disclaims all warranties, express or implied, with regard to the accuracy or completeness of such information.
Further, because the product(s) featured herein may be used under conditions beyond its control, UNIPOWER, LLC
hereby disclaims and excludes all warranties, express, implied, or statutory, including any warranty of
merchantability, any warranty of fitness for a particular purpose, and any implied warranties otherwise arising from
course of dealing or usage of trade. The user is solely responsible for determining the suitability of the product(s)
featured herein for user’s intended purpose and in user’s specific application.
© Copyright UNIPOWER, LLC 2015
Sageon Micro and SageView™ are trademarks of UNIPOWER, LLC. Other trademarks are the property of their
respective owners.
1Throughout the remainder of this manual “UNIPOWER” will mean “UNIPOWER, LLC”

Front Matter Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
v
TABLE OF CONTENTS
1. GENERAL WARNING ......................................................................................................................................1-1
1.1 PRODUCT SUPPORT.................................................................................................................................1-1
2. CONFIGURATION ............................................................................................................................................2-1
2.1 GENERAL DESCRIPTION.........................................................................................................................2-1
2.2 SYSTEM DESCRIPTION ...........................................................................................................................2-1
2.2.1 Front View...............................................................................................................................................2-1
2.2.2 Rear View................................................................................................................................................2-4
3. INSTALLATION.................................................................................................................................................3-1
3.1 MOUNTING THE POWER SHELF............................................................................................................3-1
3.1.1 Tools Required for Installation................................................................................................................3-1
3.1.2 Gaining Access to Rear Wiring ...............................................................................................................3-1
3.2 OVERVIEW OF EXTERNAL WIRING CONNECTIONS........................................................................3-2
3.3 MAINS CONNECTIONS............................................................................................................................3-4
3.3.1 Factory Supplied Configurations.............................................................................................................3-4
3.3.2 Single phase – individual protected external feeds..................................................................................3-5
3.3.3 3 phase Y – individual protected external feeds ......................................................................................3-6
3.3.4 3 phase delta – individual protected external feeds .................................................................................3-6
3.3.5 Surge protection requirements.................................................................................................................3-7
3.4 BULK LOAD CONNECTIONS..................................................................................................................3-8
3.5 LOAD DISTRIBUTION CB TRIP SENSE CONNECTIONS....................................................................3-8
3.6 BATTERY CONNECTIONS.......................................................................................................................3-9
3.7 TEMPERATURE SENSORS.......................................................................................................................3-9
3.8 AUXILIARY RELAY CONNECTIONS...................................................................................................3-10
3.9 CONTROLLER POWER CONNECTIONS..............................................................................................3-10
3.10 FRONT PANEL USB COMMUNICATIONS CONNECTION................................................................3-11
3.11 REMOTE COMMUNICATION CONNECTION .....................................................................................3-11
3.11.1 RS232 Interface ................................................................................................................................3-11
3.11.2 RS485 Interface ................................................................................................................................3-11
3.11.3 TCP/IP and Sageview Interfaces.......................................................................................................3-12
3.11.4 Embedded Modems...........................................................................................................................3-12
3.12 BATTERY/LOAD DISTRIBUTION MODULE.......................................................................................3-13
3.13 ADDING AUXILIARY EXPANSION MODULES..................................................................................3-14
4. COMMISSIONING.............................................................................................................................................4-1
5. OPERATION.......................................................................................................................................................5-1
SUMMARY OF CONTROLLER FRONT PANEL CONTROLS...........................................................................5-1
5.1 CONTROLLER COMPONENTS................................................................................................................5-1
5.1.1 Alpha-numeric Display............................................................................................................................5-1
5.1.2 Front Panel Pushbuttons ..........................................................................................................................5-2
5.1.3 Status Indicating LEDs (Controller) ........................................................................................................5-2
5.2 CONTROLLER SECURITY & ALARMS..................................................................................................5-2
5.2.1 Password security ....................................................................................................................................5-2
5.2.1.1 Entering a password to gain access to parameters change ...........................................................5-2
5.2.2 When an alarm condition exists...............................................................................................................5-3
5.2.3 Controller Alarms....................................................................................................................................5-3
5.2.4 User programmable relay functions.........................................................................................................5-4
5.3 NAVIGATING CONTROLLER FUNCTIONS ..........................................................................................5-5
5.3.1 Base Menu (System Level Functions).....................................................................................................5-5
5.3.2 RECTIFIER Menu (Rectifier Specific Functions)...................................................................................5-8
5.3.3 Alarm Log................................................................................................................................................5-8
5.3.4 Battery Menu (Battery Specific Functions) .............................................................................................5-9
6. TROUBLESHOOTING......................................................................................................................................6-1
6.1 TO REMOVE A RECTIFIER MODULE OR A CONTROLLER ..............................................................6-4
6.2 TO INSERT A RECTIFIER MODULE OR A CONTROLLER .................................................................6-4

Front Matter Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
vi
7. APPENDIX A – SETTING UP NETWORK INTERFACES..........................................................................7-1
7.1 PROGRAMMING IP ADDRESSES USING DEVICE INSTALLER SOFTWARE..................................7-1
7.1.1 Preparations for local address set up........................................................................................................7-1
7.1.2 Local IP address set up procedure ...........................................................................................................7-1
7.1.3 Preparations for gateway address set up ..................................................................................................7-1
7.1.4 Gateway IP address set up procedure ......................................................................................................7-1
7.2 PROGRAMMING IP ADDRESSES USING ARP AND TELNET ACCESS............................................7-2
7.2.1 Preparations for local address set up........................................................................................................7-2
7.2.2 Local IP address set up procedure ...........................................................................................................7-2
7.2.3 Configuring the Unit................................................................................................................................7-3
7.2.3.1 Using a Telnet Connection.............................................................................................................7-3
7.2.4 Server Configuration (Network Configuration).......................................................................................7-4
8. SPECIFICATIONS .............................................................................................................................................8-1
FIGURES
Figure 2.1 System blocks (2RU Series).................................................................................................................... 2-1
Figure 2.2 System blocks (3RU Series).................................................................................................................... 2-1
Figure 2.3 System blocks (4RU Series).................................................................................................................... 2-2
Figure 2.4 System blocks (5RU Series).................................................................................................................... 2-2
Figure 2.5 System blocks (6RU Series).................................................................................................................... 2-3
Figure 2.6 System blocks(7RU Series)..................................................................................................................... 2-3
Figure 2.7 Rear view of connections......................................................................................................................... 2-4
Figure 2.8 Connections on Controller backplane ...................................................................................................... 2-5
Figure 2.9 Alarm relay board connections................................................................................................................ 2-5
Figure 3.1 Mount points for securing Power shelf in a rack..................................................................................... 3-1
Figure 3.2 Opening top rear cover to access wiring ................................................................................................. 3-2
Figure 3.3 Typical Powershelf internal schematic diagram...................................................................................... 3-3
Figure 3.4 AC Feed Terminations ............................................................................................................................. 3-4
Figure 3.5 Single Phase-Individual Protected External Feeds................................................................................... 3-5
Figure 3.6 Three Phase Y-Individual Protected External Feeds................................................................................ 3-6
Figure 3.7 Three Phase Delta-Individual Protected External Feeds .......................................................................... 3-6
Figure 3.8 Surge Protection....................................................................................................................................... 3-7
Figure 3.9 Bulk Load Connections............................................................................................................................ 3-8
Figure 3.10 Circuit Breaker Aux. Contacts .............................................................................................................. 3-8
Figure 3.11 Battery Connections............................................................................................................................... 3-9
Figure 3.12 Alarm relay connections (right) and remote communications module location (left)......................... 3-10
Figure 3.13 RS485 pin assignments ....................................................................................................................... 3-11
Figure 3.14 Battery String Kit Installation .............................................................................................................. 3-14
Figure 3.15 Load Connection Kit Installation ......................................................................................................... 3-14
Figure 6.1 Removing Rectifier Module or Controller............................................................................................... 6-4

General Warning Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
1-1
1. GENERAL WARNING
1. This equipment has been designed to be used only in restricted access areas.
2. This equipment must only be serviced by authorized and qualified service personnel.
3. Operators should not attempt to repair faulty units. There are no operator serviceable parts inside. All fuses are
only replaced as part of a repair procedure in a repair facility by authorized personnel and not as a maintenance
procedure on site.
4. The power shelf magazine should be mounted in a rack that satisfies the requirements for electrical enclosures
and fire enclosures according to IEC60950 or equivalent standard. For open rack use, the back of the magazine
must be fully enclosed by its covers and the AC wiring terminations must be protected by either a grounded
casing or an enclosure that provides double insulation.
5. The power shelves must be used with sufficient ventilation. After mounting, the air flow paths into and out of
the rectifiers must be unrestricted. Allow adequate flow for exhaust air out of the rack.
6. Rectifiers are live at all times when the rectifier is plugged into the backplane connector. The input AC
disconnection device is the rectifier backplane connector.
7. When removing modules, especially if the ambient temperature is high and the unit has been operating at
maximum load, avoid skin contact with the metal casing as it may be too hot to touch. Pull the unit halfway out
of the magazine and let cool for 2-3 minutes before handling.
1.1 PRODUCT SUPPORT
Product support can be obtained using the following addresses and telephone numbers.
Corporate office:
UNIPOWER, LLC
210 N University Dr
Coral Springs, FL 33071
United States
Manufacturing facility:
UNIPOWER, LLC
65 Industrial Park Rd
Dunlap, TN 37327
United States
Manufacturing facility:
UNIPOWER Slovakia SRO
ZLATOVSKA 1279
Business Center 22
91105 Trencin, Slovakia
Phone: [phone]
Toll Free: 1-800-440-3504
Web site – www.unipowerco.com
When contacting UNIPOWER, please be prepared to provide:
1. The product model number, spec number, S build number, and serial number - see the equipment nameplate on
the front panel
2. Your company’s name and address
3. Your name and title
4. The reason for the contact
5. If there is a problem with product operation:
•Is the problem intermittent or continuous?
•What revision is the firmware?
•What actions were being performed prior to the appearance of the problem?
•What actions have been taken since the problem occurred?

Configuration Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
2-1
2. CONFIGURATION
2.1 GENERAL DESCRIPTION
RT9 Power shelf systems are turn-key DC uninterruptible power supply solutions (DC UPS) for powering 24VDC
or 48VDC telecommunications and industrial equipment. The Power shelf provides integrated battery management
functions for a range of battery types (VRLA, flooded Lead-acid, NiCad, Ni-MH, Li-polymer) to enable easy
commissioning of a DC UPS or it can be used as a standalone DC source when no batteries are used.
The Power shelf provides the following integrated features:
•battery (& load) distribution
•battery & load circuit breaker trip sensing
•battery charge current limiting
•short circuit and reverse polarity protection
•battery temperature sensing
•n+1 redundant rectifiers
•low voltage disconnection
•a monitoring and control module (Controller)
•automated/remote battery discharge testing
•super capacitor backed real-time system clock
•accurate temperature compensated Float and
Equalization voltages
•optional remote communication capability,
including web-based protocols
•optional modules for monitoring AC power and
battery cell voltages
•all rectifiers and the controller are hot-swap and
plug-and-play capable
•optional AC distribution
2.2 SYSTEM DESCRIPTION
2.2.1 Front View
Figure 2.1 System blocks (2RU Series)
Figure 2.2 System blocks (3RU Series)

Configuration Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
2-2
Figure 2.3 System blocks (4RU Series)
Figure 2.4 System blocks (5RU Series)

Configuration Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
2-3
Figure 2.5 System blocks (6RU Series)
Figure 2.6 System blocks(7RU Series)

Configuration Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
2-4
(1)
Rack mounting magazine
(2)
Rectifier module
(3)
Battery (& load) distribution module
(4)
Controller
(5)
AC distribution module (option on some systems)
2.2.2 Rear View
Figure 2.7 Rear view of connections
(1)
Controller backplane & interface connections
(2)
Battery (& load) switched connections
(3)
Battery (& load) common return connection bar
(4)
AC feed terminations
(5)
Alarm relay connections
(6)
Remote communications module connection

Configuration Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
2-5
1
2
4
5
6
7
8
3
Figure 2.8 Connections on Controller backplane
(1)
Remote communications module connection (14-way ribbon)
(2)
Auxiliary peripheral module (relays, battery cell monitor, etc) connection (16-way ribbon)*
(3)
Battery (& load) distribution module connection** (34-way ribbon)
(4)
Ambient temperature sensor connection (sensor P/N 385-5941-03)
(5)
Battery temperature sensor connection (sensor P/N 385-5941-03)
(6)
Rectifier isolated communications connection (10-way ribbon)*
(7)
Standalone system voltage connection (Controller power and voltage sensing) – special use only
(8)
Load circuit breaker trip detection circuitry connection
Notes:
* Devices and cable connections are pre-wired as part of the supplied and tested Power shelf
** This connection can be left unused if the system has no requirement for control and maintenance of batteries (i.e.
standalone DC power supply)
Figure 2.9 Alarm relay board connections
The alarm relay board is inverted when installed in the Power shelf lid such that Relay 5 is on the left when viewed
from the rear of the metalwork. The connections are labeled again on the rear cover. Each alarm is user
programmable through the Controller using the Sageview PC software.

Installation Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
3-1
3. INSTALLATION
3.1 MOUNTING THE POWER SHELF
The Power shelf is mounted into a standard 19” rack using 12-24 screws. A minimum of 4 screws are required to
secure the Power shelf into the rack. It is recommended to initially install the Power shelf into the rack without
either the Controller or the RT9 rectifiers in place.
Figure 3.1 Mount points for securing Power shelf in a rack
Wiring for the standard power shelf is rear access only. For systems where rear access is not available, the Power
shelf can be pre-wired for load, battery, AC power and remote communications before mounting the magazine in the
rack. For maintenance and load expansion, the Power shelf is slid forward until the rear top cover is able to be
opened to access the wiring points with suitably tools.
3.1.1 Tools Required for Installation
•No. 2 screwdriver (for tightening rack bolts)
•No. 1 screwdriver
•10mm open-ended spanner or socket (insulated for live DC work)
•4mm Hex-bar driver allen wrench
•Small flat-blade screwdriver (for tightening DIN rail terminal screws)
3.1.2 Gaining Access to Rear Wiring
NOTE: Access to the rear wiring should be limited to qualified service personnel. It is recommended to remove the
AC power before gaining access to the rear wiring due to the safety hazard present inside the electrical enclosure.
Mounting screws

Installation Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
3-2
Similarly, the energy hazard associated with the batteries connected to the DC bus must be addressed through the
use of appropriately insulated tools and other measures to prevent accidental short circuits to the DC bus.
Figure 3.2 Opening top rear cover to access wiring
To open the top rear cover, remove the two rear M3 screws securing the cover to the back. The top cover will then
hinge up to provide access to the wiring.
To gain further access to the wiring, remove the rear cover grills by removing the two screws holding each 1U grill.
3.2 OVERVIEW OF EXTERNAL WIRING CONNECTIONS
Figure 3.3 shows the internal and interface schematic for the Sageon Micro Powershelf. For the purpose of
indicating how a system is connected, the same schematic applies to other Power shelf products. The system shown
is for a –48V system where the positive side of the DC bus is tied to ground, usually on the common return bar. For
+24V systems, the opposite is usually the case with the negative DC bus being connected to the common return bar
that is in turn grounded. It is also possible to float the output, but under these conditions, there is no guarantee that
all voltages on the DC bus will stay below the Safety Extra-Low Voltage (SELV) limits with respect to ground
during fault conditions.

Installation Sageon Micro Power Module Manual
PM990-4207-00, Rev 6
3-3
Figure 3.3 Typical Powershelf internal schematic diagram

Commissioning Sageon Micro Power Module Manual
PM990-4207-00, Rev. 6
3-4
The switched battery cables (negative in a –48V system) terminate on the copper bars of the battery distribution
module (item 2 in Figure 2.), while the battery return cables terminate on the common return bar (item 3 in Figure
2.). The battery distribution module can be configured for up to four battery strings with the appropriate number of
return cable termination points being available on the common bar.
Load switched connections can be made either through the optional load circuits that can be installed in the battery
distribution module, or as bulk load connections to the main rectifier bus bars. The load return is then terminated
either on the common return bar or on the rectifier common bus bars. External DC distribution feed connections are
made as a bulk load connection.
In many cases, the AC distribution is external to the Power shelf. The AC feed should be wired as individually
protected feeds for each rectifier (recommended and preferred) to provide discrimination of fault protection devices.
Alternatively, a single AC supply (1 phase or 3 phase) can be used, but there will not be any discrimination and if
one unit generates a fault, the power to all rectifiers will be removed. Where the AC distribution is integrated into
the Power shelf, each rectifier feed is individually protected and the installer is only required to connect a single AC
supply (1 phase or 3 phase) to the AC DIN rail terminations.
Remote communications and alarm relay cabling connects to the top rear cover. Allow enough free cable to permit
the top cover to hinge open or to remove the Power shelf from the front of the rack for maintenance.
3.3 MAINS CONNECTIONS
Figure 3.4 AC Feed Terminations
3.3.1 Factory Supplied Configurations
Power shelves without internal AC distribution (3RU System), unless specially ordered, are configured with each
rectifier active line being terminated in an individual DIN rail terminal block (beige) and the remaining AC line is

Commissioning Sageon Micro Power Module Manual
PM990-4207-00, Rev. 6
3-5
connected to a common neutral bar (blue terminal blocks). The system is shipped with a shorting link installed that
connects all the active terminals together, thereby making the system a single supply, single phase load.
For Power shelves with AC distribution, unless specially ordered, the AC active feeds to the circuit breakers are
connected to one of three terminal blocks (beige). The un-switched AC lines to the rectifiers are tied together on a
common neutral bar (blue blocks). The wiring is arranged this way to allow the system to be configured easily for
single phase or three phase “Y-connection” supply. The system is shipped with a shorting link joining the three
active terminations, thereby making the system a single supply, single phase load by default.
The shorting link/s must be removed before connecting a 3 phase supply. The label over the AC terminations
indicates the L1, L2, L3, N, GND connections to indicate how the Power shelf with AC distribution is wired. AC
feed wiring should be sized appropriately per NEC code for the number of rectifiers being powered.
3.3.2 Single phase – individual protected external feeds
Connect each of the circuit breaker protected active wires to the individual terminal blocks that feed each rectifier.
Remove the shorting link from the active terminal blocks (“A” block). Connect the neutral wire/s to the common
neutral terminals.
L1
Figure 3.5 Single Phase-Individual Protected External Feeds

Commissioning Sageon Micro Power Module Manual
PM990-4207-00, Rev. 6
3-6
3.3.3 3 phase Y – individual protected external feeds
Remove the link connecting the active terminals “A” together. Connect one phase wire per “A” terminal. Connect
the neutral wires to the common neutral terminals.
L1
L2
L3
Figure 3.6 Three Phase Y-Individual Protected External Feeds
3.3.4 3 phase delta – individual protected external feeds
Phase-to-phase (208VAC) connections require that the AC terminal blocks for the neutral be replaced with
individual active line terminals. Then for each rectifier, the two AC lines can be wired to the appropriate phases.
This configuration needs to be specially ordered to ensure that the correct number of terminal blocks is loaded. The
system will be shipped with links in the active terminal blocks to configure the system as single phase (but for
phase-to-phase connection).
To wire as 3 phase delta, remove the links connecting the active terminals together, and connect each phase-to-phase
pair of wires to a set of “A” and “C” terminals. Phase rotation is not important. Double pole circuit breakers are
required.
L1
L2
L3
Figure 3.7 Three Phase Delta-Individual Protected External Feeds

Commissioning Sageon Micro Power Module Manual
PM990-4207-00, Rev. 6
3-7
3.3.5 Surge protection requirements
The rectifiers are internally protected for surges up to 6kV/3kA. For higher levels of protection, particularly for
sites with high incidence of lightning or switching surges, additional surge protection is required on the AC feed to
the Power shelf. Typically surge arrestors with a 10kA-40kA rating are required with the highest level of protection
being provided when arrestors are connected between phase-neutral (x3 phases) and between phase/neutral-earth (x
3 phases).
Other arrangements (for 3-phase “Y”) with similar levels of protection are also possible as shown below. The
voltage rating of the arrestor should be selected based on the maximum AC voltage likely to appear on the line. The
arrestor should limit the voltage to <1200V – 1400V at the rated maximum pulse current.
Figure 3.8 Surge Protection