Unipower X75 Series Installation instructions

INSTALLATION & OPERATING MANUAL
X75 SERIES
DC POWER POWER SYSTEM
Mk3 Controller
www.unipowerco.com
Manual No. X75mk3-11 © 2015 UNIPOWER LLC
All Rights Reserved
x75-man-Rev11-0815.indd
NORTHAMERICA • 3900 Coral Ridge Drive, Coral Springs, Florida 33065, USA • Tel: [phone] • Fax: [phone] • [email protected]
EUROPE • Parkland Business Centre, Chartwell Road, Lancing BN15 8UE, ENGLAND • Tel: [phone] • [email protected]

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X75 SERIES - Mk3 Controller
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Manual No. x75mk3-11 x75-man-Rev11-0815.indd
Contents
1.0 INTRODUCTION ...............................................................................................................4
2.0 FEATURES & OPTIONS....................................................................................................5
3.0 SAFETY WARNINGS.........................................................................................................6
4.0 WARRANTY (summary) ....................................................................................................7
5.0 UNPACKING AND INSPECTION.....................................................................................7
6.0 GENERAL SPECIFICATIONS...........................................................................................8
7.0 PRINCIPAL OF OPERATION..........................................................................................10
8.0 FRONT PANEL DESCRIPTION......................................................................................11
9.0 REAR PANEL DESCRIPTION ........................................................................................12
10.0 LED Indicators...................................................................................................................15
11.0 MAKING CONNECTIONS TO THE X75.......................................................................16
12.0 INSTALLATION...............................................................................................................20
13.0 USING THE CONTROLLER WEB BROWSER INTERFACE ......................................23
Appendix 1 – SNMPv3 MIB Information.....................................................................................54
Appendix 2 – Load LVD (special order) .......................................................................................63
Appendix 3 – Revision History......................................................................................................64

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FIGURES
Figure 1 - X75 Compact Integrated DC Power System...................................................................4
Figure 2 - Block Schematic............................................................................................................10
Figure 3a - Front View with Breakers (conguration A) ...............................................................11
Figure 3b - Front View with GMT Fuses (conguration B) ..........................................................11
Figure 4 - Rear Views of Base and Expansion Units.....................................................................12
Figure 5 - LED Indicators..............................................................................................................15
Figure 6 - Recommended Load Circuit Wire Sizes.......................................................................16
Figure 7 - Battery Temp. Probe & Alarm Relay Connector Pin-Out.............................................17
Figure 8 - Ethernet Connector Pin-Out..........................................................................................18
Figure 9 - Auxiliary Connector Pin-Out........................................................................................18
Figure 10 - Input Current Ratings..................................................................................................20
Figure 11 - Status WEB Page (typical)..........................................................................................26
Figure 12 - Rectier Status WEB Applet (typical) ........................................................................28
Figure 13 - Installation WEBApplet - system tab (typical) ..........................................................30
Figure 14 - Installation WEB Applet - oat & tc tab (typical) ......................................................31
Figure 15 - Installation WEBApplet - battery tab (typical) ..........................................................32
Figure 16 - Installation WEB Applet - oat & tc tab (typical) ......................................................33
Figure 17 - Installation WEBApplet - lvd tab (typical) ................................................................34
Figure 18 - Installation WEBApplet - digital i/p tab (typical)......................................................36
Figure 19 - Installation WEB Applet - rectiers tab (typical)........................................................36
Figure 20 - Installation WEBApplet - shunts tab (typical) ...........................................................37
Figure 21 - Battery Management WEBApplet (typical)...............................................................38
Figure 22 - Alarm Matrix WEB Applet (typical)...........................................................................40
Figure 23 - Alarm Matrix WEB Applet - matrix options (typical) ................................................41
Figure 24 - Alarm Matrix WEB Applet - temperature alarm settings (typical).............................43
Figure 25 - Alarm Matrix WEB Applet - voltage alarm settings (typical) ....................................44
Figure 26 - Alarm Matrix WEB Applet - voltage alarm settings (typical) ....................................44
Figure 27 - Alarm Matrix WEB Applet - other alarm settings (typical)........................................45
Figure 28 - Network Settings WEBApplet (typical) ....................................................................46
Figure 29 - Alarm Log WEB Applet (typical) ...............................................................................48
Figure 30 - Data Log WEBApplet (typical)..................................................................................49
Figure 31 - Change Password WEBApplet...................................................................................52
Figure 32 - Help WEB Page ..........................................................................................................53
Figure 33 - About WEB Page (typical)..........................................................................................53

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1.0 INTRODUCTION
Gravitas X75 is an ultra-compact, integrated DC power system. The base system is a 1RU
shelf holding up to three hot-swap rectier modules. This system produces up to 1950 watts
output at -54.4, +27.2 or +13.6VDC. It can also be operated as a 2+1 redundant system with
up to 1300 watts output. The expanded system consists of a base shelf plus an expander
shelf with a 2RU total height. This system holds up to six rectier modules with up to 3900
watts output; it can be operated as a 5+1 redundant system with up to 3250 watts output.
Each rectier module is cooled by a fan that operates at a speed which is a function of load
and temperature.
There are up to ve circuit-breaker protected DC outputs or up to 10 GMT fuse protected
outputs on the base system. A battery string breaker and a low-voltage battery disconnect
are standard features. The expander shelf comes with a ribbon cable and connectors to link
the signals between the two units at their rear panels. It also comes with bus bar links to
parallel the rectier output bus bars.
The base and expander shelves can also be operated as a battery backup, single feed power
system (without load circuit breakers or fuses).
The remote access controller has LED visual indicators and Form C relay alarms. It is
programmed by means of a remote PC web page display with communication by Ethernet
LAN. Temperature compensated rectier output is provided by means of an accessory TC
probe. The X75 can be quickly installed by a qualied technician.
.
Figure 1 - X75 Compact Integrated DC Power System

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2.0 FEATURES & OPTIONS
2.1 Standard Features
1RU High Base System
1RU High Expander Shelf
Remote Control & Monitoring via TPC/IP Ethernet LAN
Fully Integrated System
Up to 72A at -54.4VDC
Up to 75A at +27.2VDC or +13.6VDC
Wide Range AC Input
Up to 10 DC Load Circuits
Circuit Breakers or GMT Fuses
Quick and Easy Installation
Universal 19/23-Inch Mounting Brackets
SNMPv3 reporting and Error Trapping
2.2 Options & Accessories
Additional Probe for External Temperature Measurement (‘T’ Option)
Various AC Line cords and DC cable sets

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3.0 SAFETY WARNINGS
3.1 The X75 Compact DC Power System operates at voltages that could potentially be
hazardous. Furthermore, inadvertent short circuiting of the system battery and/or
rectier by mis-connection or other error could be harmful. This product should be
handled, tested and installed only by qualied technical persons who are trained in
the use of power systems and are well aware of the hazards involved.
3.2 All connections to the X75 should be carefully checked for errors before applying
power to it.
3.3 SpecicConsiderationsforRackMountedEquipment
3.3.1 Elevated OperatingAmbient - If installed in a closed or multi-unit rack
assembly, the operating ambient temperature of the rack environment may be greater
than room ambient. Therefore, consideration should be given to installing the X75
in an environment compatible with the maximum ambient temperature of 50°C at
full rated load, and at 70°C at derated load at a derating factor of 2.5%/°C from
50°C to 70°C.
3.3.2ReducedAirFlow- Installation of the X75 in a rack should be such that the
amount of air ow required for safe operation of the equipment is not compromised.
3.3.3MechanicalLoading- Mounting of the X75 in the rack should be such that a
hazardous condition is not achieved due to uneven mechanical loading.
3.3.4CircuitOverloading- Consideration should be given to the connection of the
X75 to the supply circuit and the effect that overloading of the circuits might have
on over-current protection and supply wiring. Appropriate consideration of the X75
nameplate ratings should be used when addressing this concern.
3.3.5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).”
3.4 TheX75isintendedonlyforinstallationina“RESTRICTEDACCESSLOCATION”.
3.5 Input/output short circuit ratings are 5KAAC for terminals connected to breakers
and 450AAC for terminals connected to GMT type fuses.

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3.6 The controller unit integral to the X75 is tted with a replaceable battery.
 CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BYAN
INCORRECTTYPE.DISPOSEOFUSEDBATTERIESACCORDINGTO
THEINSTRUCTIONS.
4.0 WARRANTY (summary)
X75 Series DC power systems 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
the manufacturer 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 Ofce.
5.0 UNPACKING AND INSPECTION
5.1 This X75DCpower system was carefullytested,inspectedandpackagedfor shipment
from our factory. Upon receipt the unit should be carefully unpacked and inspected
for any damage in shipment.
5.2 If there is evidence of damage, donotattempttoinstalltheunit. The freight carrier
should be notied immediately and a claim for the cost of the X75 should be led
with the carrier for direct reimbursement. Be sure to include the model and serial
number of the damaged unit in all correspondence with the freight carrier. Also
save the shipping carton and packing material as evidence of damage for the freight
carrier’s inspection.
5.3 UNIPOWER will cooperate fully in case of any shipping damage investigation.
5.4 Always save the packing materials for later use in shipping the unit. Never ship the
system or the rectier modules without proper packing.

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6.0 GENERAL SPECIFICATIONS
6.1 Inputs
Supply Voltage: 85-264VAC Single Phase
Each rectier position is supplied via an individual
IEC60320 C14 Inlet Socket.
A 3-phase supply may be connected provided that the voltage presented to each
individual rectier position does not exceed 264VAC.
Supply Current: Max 9A input @ 85-264VAC per inlet socket.
Battery Input: Direct connection to DC output bus or via protection
breakers.
Digital alarm inputs: Volts free contact input*
*Volts free contacts are internally pulled up to 5V with reference to rectier negative
sense, these lines should not be tied to anything other than volts free contacts or
oating opto-coupler outputs.
Temperature probes: Sensorwithoutputcurrentproportionaltotemperature.
6.2 Outputs
Pluggable Breakers: Up to 5 circuits, 30A max. per circuit.
GMT Fuses: 10 circuits, 12A max. per circuit.
Alarm Relay Contacts: Form C, 1A max at 30VDC.
Ethernet: 10/100 Base T
6.3 Protection
Supply Input: Each rectier is individual fused internally.
Battery: 100A Magnetic Circuit Breaker.
Output Distribution: According to installed circuit breakers or fuses.
Bulk DC Bus: Rectier Current Limiting / Battery Breaker.

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6.4 Safety
The X75 system is compliant with UL60950-1, EN60950-1, CSA22.2-60950-1 and
all other derivatives of the core IEC60950-1 standard 2nd Edition when installed
correctly within a restricted access environment.
The X75 system is CE marked to indicate conformance to the European Union’s
Low Voltage and EMC Directives.
6.5 EMC
The X75 complies with the following Norms when correctly installed.
Conducted Emissions: EN55022, level A
Radiated Emissions: EN55022, level A
ESD: EN61000-4-2, level 4, criterionA- 8kVcontact,15kV
air.
Radiated Immunity: EN61000-4-3, level 3, criterion A - 10V/m.
Surges (power ports): EN61000-4-5, level 1, criterion A - 500V
6.6 Environmental
Operating Temperature: -20°C to 70°C, derating 2.5%/°C from 50°C to 70°C
Storage Temperature: -40°C to 75°C
Humidity: 0% to 95% Non-Condensing
6.7 PhysicalSpecication
Case Material: Steel
Finish: Clear Passivated
Dimensions: 1.72H (43.7) x 17.2W(437) x 14.47D(368)
Rack Width: 19” or 23” using dual purpose kit supplied.
NOTE: Mid-mount is recommended when used in
free space.

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7.0 PRINCIPAL OF OPERATION
L
N
L
N
L
N
BATTERY
5 x LOAD
BREAKERS
10 x LOAD
FUSES
RETURN
RECTIFIER
#1
RECTIFIER
#2
RECTIFIER
#3
REMOTE ACCESS
CONTROLLER
I²C
LVD
ALARMS
&
SENSORS
NETWORK
COMMUNICATIONS
BATTERY
CURRENT
SHUNT
RECTIFIER
CURRENT
SHUNT
CONFIG.
A
CONFIG.
B
Figure2-BlockSchematic
7.1 85-264VAC is supplied directly to each of the rectiers which produce a nominal
-48VDC, +24VDC or +12VDC output.
7.2 Following a current shunt to measure the rectier current, the rectier DC output
is fed to the battery terminals via the LVD (Low Voltage Disconnect, current shunt
and a 100A circuit breaker.
7.3 The rectifier DC output is also fed to the loads via up to 5 circuit breakers
(conguration A) or 10 fused circuits (conguration B).
7.4 The management unit monitors and controls the rectiers via an I²C interface and
also checks the status of the DC load and battery breakers/fuses.
7.5 The management unit monitors external sensors and provides alarms.

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8.0 FRONT PANEL DESCRIPTION
I
0
1 2 3
LOAD BREAKERS
I
0
I
0
I
0
I
0
CTR
MAJA
MINA
ACFA
RFA
OTA
OVA
CTR
MAJA
MINA
ACFA
RFA
OTA
OVA
12345
GMT FUSES
1.............................10
1 2 3
Figure3a-FrontViewwithBreakers(congurationA)
I
0
1 2 3
LOAD BREAKERS
I
0
I
0
I
0
I
0
CTR
MAJA
MINA
ACFA
RFA
OTA
OVA
CTR
MAJA
MINA
ACFA
RFA
OTA
OVA
12345
GMT FUSES
1.............................10
1 2 3
Figure3b-FrontViewwithGMTFuses(congurationB)
Figures 3a and 3b show the two system congurations as viewed from the front with breakers
and fuses respectively. Following is a description of each section.
8.1 From left to right there are 3 rectier slots. Each slot can accept one rectier from
the Sigma Series rated up to 650W output power. Only identical model rectiers of
appropriate output voltage maybe installedat the sametime. For example, a nominal
-48V system may contain between 1 and 3 model RSG48/10-Z OR between 1 and
3 model RSG48/12-Z but not a mixture of the two types.
8.2 To the right of the rectiers are 7 LED indicators which display various status and
alarm conditions. These are described in more detail in section 10.
8.3 On the right hand side of the unit is the DC distribution section which may contain
between 1 and 5 circuit breakers (conguration A) or a 10-way GMT fuse block
(conguration B).

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9.0 REAR PANEL DESCRIPTION
LOAD TERMINALS BATTERY
BREAKER BUS BARS BAT -VO +VO
EXPANSION
SIGNAL INTERFACE
BUS BARS
-VO +VO
AC INPUTS
IEC60320-C14
ETHERNET
ALARMS /
TEMP. COMP.
DIGITAL INPUT
EXTERNAL TEMPERATURE
GND
OFF
321
321
CONSOLE
(reserved)
Figure4-RearViewsofBaseandExpansionUnits
Figures 4 shows the base and expansion unit as viewed from the rear. Following is a
description of each section.
9.1 On the left hand side of the Base Unit, viewed from the rear, is a bank of screw
terminal blocks for the DC load connections.
When the Circuit Breaker option has been specied two connections are provided
for Load and Return for each breaker position.
When the GMT Fuse option has been specied one connection is provided for Load
and Return for each fuse position.
9.2 To the right of the Load connection terminals is the Battery Breaker. This is a
magnetic circuit breaker rated at 100A. This circuit breaker provides two functions.
9.2.1 In the rst instance it enables the user to disconnect the batteries from the
system for maintenance, replacement or other purposed.
9.2.2 The second function is to protect the batteries against excessive charge or
discharge currents.
9.3 To the right and below the battery breaker there is a 9-way D sub connector marked
RS232.
This connector provides a ‘console’only function to UNIPOWER service personnel
and should not be connected to for any other purpose.

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9.4 In the center of the unit are three bus bar terminals.
9.4.1 To the left side is the VB or BAT terminal. This is connected to the ‘hot’
or ‘feed’side of the battery.
9.4.2 In the middle is the –V or –VO terminal. This is the ‘negative’ output of
the rectier bus.
9.4.3 To the right side is the +V or +VO terminal. This is the ‘positive’ output
of the rectier bus.
9.4.4 Battery connection for -48VDC systems is as follows:
+Ve battery terminal connects to the +V terminal.
–Ve battery terminal connects to the VB terminal.
Note that in -48VDC systems the +V terminal is internally connected to chassis
ground.
9.4.5 Battery connection for +24VDC and +12VDC systems is as follows:
+Ve battery terminal connects to the VB terminal.
-Ve battery terminal connects to the –V terminal.
Notethat in+24VDC and +12VDCsystems the -Vterminalis internally connected
to chassis ground.
9.4.6 When the system is required to provide a bulk feed output without using
the internal distribution the +V and –V terminals are used to provide this
feed to the load.
9.4.7 When an expansion shelf is used to increase the overall capacity of the
system the +V and –V terminals of the expansion unit should be bussed
together with the +V and –Vterminals of the system unit respectively using
the supplied link bars.
9.5 Immediately to the right of the bus bar terminals is a bank of 15 Spring Clamp
Terminals designated J4. These terminals provide connections for the battery
temperature compensation probe and the relay alarm outputs. They are described
in detail in section 11.
9.6 Next to J4 is a25-way Sub-miniatureD-Type connector, designated J1, which isused
to connect various signal and control lines between a base unit and an expansion
shelf.

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Expansion shelves are supplied with a short cable to link the J1 connectors between
the base unit and the expansion shelf.
9.7 Above J1 is a 4-way Spring Clamp Terminal connector. This connector, designated
J2, provides terminations for the auxiliarydigitalalarm inputand the optional external
temperature probe. The pin-out for this connector is described in section 11.
9.8 To the left ofJ2 is the EthernetTCP/IPconnector (J3). This connection usesa standard
RJ45 Network connector. It is used to connect either to a Local Area Network or
directly to a PC with network connection, the latter using a standard cross-over cable.
The primary means of setting up the X75 unit is via it’s built-in WEB server, which
is accessed using a WEB browser via this Ethernet TCP/IP connection.
9.9 At the righthand sideof thebase unitand alsothe expansionshelf arethree IEC60320
C14 inlets. These provide individual AC input feeds to each of the 3 rectier slots.
The X75 employs UNIPOWER Sigma Series rectiers which operate from a
Universal 85-264VAC 50-60Hz single phase supply. The system is designed so that
various single and 3-phase supply connections can be made. For example, in the
U.S. it might be desirable to connect each rectier between two 120VAC phases; in
which case each rectier is operating at 208VAC.
IMPORTANT NOTE: DO NOT CONNECT THE UNIT SUCH THAT MORE
THAN 264VAC WILL BE PRESENT BETWEEN THE LIVE AND NEUTRAL
TERMINALS OF ANY ONE INLET SOCKET. SUCH CONNECTION MAY
BE HAZARDOUS, WILL DAMAGE THE UNIT AND INVALIDATE THE
WARRANTY.

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10.0 LED Indicators
I
0
1 2 3
LOAD BREAKERS
I
0
I
0
I
0
I
0
CTR
MAJA
MINA
ACFA
RFA
OTA
OVA
CTR
MAJA
MINA
ACFA
RFA
OTA
OVA
12345
GMT FUSES
1.............................10
1 2 3
Figure5-LEDIndicators
During normal operation there will be one green LEDs displayed as shown in gure 5 above.
The LED indicators provide visual indication of both status and alarm conditions as described
below:
CTR – GREEN – Indicates that the unit has power and is functioning normally.
MAJA – RED – Indicates a ‘Major’ (Immediate Response) alarm condition.
MINA – RED – Indicates a ‘Minor’ (Scheduled response) alarm condition.
ACFA – RED – Indicates an AC supply failure.
RFA – RED – Indicates a Rectier module failure.
OTA – RED – Indicates that one or more of the monitored temperatures is too high.
OVA – RED – Indicated that the system Bus Voltage is too high.

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11.0 MAKING CONNECTIONS TO THE X75
11.1 DCLoadConnections
The DC load distribution connections at the rear left of the unit are clearly marked
as follows:
11.1.1 Circuit breaker option.
For each load circuit there are two terminals markedV1, V2,V3, V4 andV5
respectively for the DC ‘feed’and two marked RTN for the DC ‘return’.
11.1.2 GMT Fuse option.
For each load circuit there is one terminal marked V1 through to V10
respectively for the DC ‘feed’and one marked RTN for the DC ‘return’.
Note that in the case of -48VDC system the‘feed’terminals are at anegative potential
with respect to the ‘return’terminals. In the case of +24VDC and +12VDC systems
the ‘feed’terminals are at a positive potential with respect to the ‘return’terminals.
When connecting to the DC load terminals it is important to ensure that the cables
usedare adequately sized to carry the expected load current for the circuit in question.
The maximum current rating for the individual load terminals is 32A, but where
long cable runs to the load are expected care should be taken to avoid unacceptable
cable voltage drop; this is most likely to occur at currents in excess of 20Aif only a
single feed and return cable are employed. It is recommended that for circuits where
a 20A or greater breaker is tted pairs of feed and return cables are installed.
The terminals can accommodate wire sizes in the range #24AWG to #12AWG.
The table below gives recommended cable sizes for the available circuit capacities
assuming semi-conned conditions.
Circuit Rating Minimum Cable Size
½A , ¾A, 1A,
1⅓A, 2A, 2½A 24AWG
3A, 5A 22AWG
10A. 12A 18AWG
15A 16AWG
20A 14AWG or 2 x 18AWG
25A, 30A 12AWG or 2 x 16AWG
Figure6-RecommendedLoadCircuitWireSizes

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11.2 AlarmRelayandBatteryTemperatureProbeConnections–J4
Connection to the Form-C alarm relay outputs is made through a 15-way spring
clamp terminal connector. There are a total of 4 relay outputs with Normally Open,
Normally Closed and Common Contacts available for connection. The individual
relays contact sets are fully isolated and may be oated from GROUND by up to 100V.
Maximum contact current and voltage are 1A and 30V (DC or AC) respectively.
This connector accommodates wire sizes in the range #28 to #20AWG.
The alarm relays are designated K1 to K4. K1 and K2 are pre-programmed for
MAJOR and MINOR alarm conditions by default. K3 and K4 are not programmed
for any alarm function.
The function of each alarm may be programmed using the Alarm Conguration
WEB page described later in section 13.
Connection of the supplied battery temperature probe, if required, is made using
terminals 1 and 3 of this same spring clamp terminal connector.
J4 CONNECTIONS
TERMINAL FUNCTION
1 BATT. TEMP. PROBE -
2 Not Used
3 BATT. TEMP. PROBE +
4 K1 - MAJ ALARM – N/C
5 K1 - MAJ ALARM – COM
6 K1 - MAJ ALARM – N/O
7 K2 - MIN ALARM – N/C
8 K2 - MIN ALARM – COM
9 K2 - MIN ALARM – N/O
10 K3 – FREE ALARM – N/C
11 K3 – FREE ALARM – COM
12 K3 – FREE ALARM – N/O
13 K4 – FREE ALARM – N/C
14 K4 – FREE ALARM – COM
15 K4 – FREE ALARM – N/O
Note that terminal 1 is to the left when viewed from the rear of the system.
Figure7-BatteryTemp.Probe&AlarmRelayConnectorPin-Out

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X75 SERIES - Mk3 Controller
INSTALLATION & OPERATING MANUAL
Manual No. x75mk3-11 x75-man-Rev11-0815.indd
11.3 EthernetConnection–J3
The X75 is connected to a TCP/IP LAN (Local Area Network) or directly to a PC
using connector J3. This is a standard RJ45 network connector allowing connection
of any generally available Ethernet cable. Note that if the X75 is to be connected
directly to a PC rather than a LAN then a cross-over Ethernet cable will be required.
J3 CONNECTIONS
TERMINAL FUNCTION
1 TX +
2 TX -
3 RX +
4 Not Used
5 Not Used
6 RX -
7 Not Used
8 Not Used
Figure8-EthernetConnectorPin-Out
11.4 AuxiliaryConnections–J2
Auxiliary connector J2provides connections foran external temperature probe which
can be supplied optionally with the system and for a single volt free contact closure
input. This connector accommodates wire sizes in the range #28 to #20AWG.
NOTE: Any sensor, such as a switch or relay, that is connected to the digital input
MUST be galvanically isolated.
The optional temperature probe is identical to the battery temperature probe that is
supplied as standard, so there is no risk of mixing the two up on receipt.
J2 CONNECTIONS
TERMINAL FUNCTION
LOAD TERMINALS BATTERY
BREAKER BUS BARS BAT -VO +VO
EXPANSION
SIGNAL INTERFACE
BUS BARS
-VO +VO
AC INPUTS
IEC60320-C14
ETHERNET
ALARMS /
TEMP. COMP.
DIGITAL INPUT
EXTERNAL TEMPERATURE
GND
OFF
321
321
CONSOLE
(reserved)
Terminal1
1Contact Closure Input
2
3 Ext. Temp. Probe +
4 Ext. Temp. Probe -
Note that terminal 1 is to the right when viewed from the rear of the system.
Figure9-AuxiliaryConnectorPin-Out

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X75 SERIES - Mk3 Controller
INSTALLATION & OPERATING MANUAL
Manual No. x75mk3-11 x75-man-Rev11-0815.indd
11.5 Expansionshelfconnector–J1
This connector is used to jumper the necessary signal and control functions for the
rectiers that are installed in an optional expansion shelf back to the base unit. The
functions and pin-out are not described in detail as these are internal to the general
operation of the unit. Alink cable if supplied with the EX75 chassis.
11.6 USBConsole
This connector is reserved for UNIPOWER factory use.

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X75 SERIES - Mk3 Controller
INSTALLATION & OPERATING MANUAL
Manual No. x75mk3-11 x75-man-Rev11-0815.indd
12.0 INSTALLATION
The X75 can be mounted in either 19” or 23” racks by using the supplied brackets. Mount
it from the front of the rack using the correct offsets to align with existing rack-mounted
equipment. Once mounted in the rack the following connections must be made with the
unit switched off.
CAUTION:Re-readtheSafetyWarningsandPrecautionsinSection3.Allpower
shouldbeOFFfortheinputandoutputloadsbeforemakingconnections.Connection
oftheX75chassistoframegroundshouldbemaderst.IftheX75hasbeenturned
onbeforeinstallationconnections,itshouldbeturnedoffandgivena5-minutewaiting
periodforallinternalenergystoragecapacitorstobedischarged.
12.1 Input AC Power Connection
A 3-wire AC power line should be connected to the input IEC connectors but not
plugged into theAC power source. The line, neutral and ground connections should
be carefully observed when making the AC connections. The AC line cord should
be sized to safely carry 15 amperes AC each, minimum.
MODEL Vin AC Vout DC WATTS A @ 120Vac A @ 240Vac
RSJ48/12-Z 85-264 54.4 653 6.5 3.2
RSG48/10-Z 85-264 54.4 550 5.4 2.7
RSF48/7-Z 85-264 54.4 400 4.0 2.0
RSG24/18-Z 85-264 27.2 500 5.0 2.5
RSF24/13-Z 85-264 27.2 350 3.5 1.7
RSG12/33-Z 85-264 13.6 450 4.4 2.2
RSF12/22-Z 85-264 13.6 300 3.0 1.5
Note: ratings given are at nominal voltage for sizing breakers. Label rating may be greater.
Figure10-InputCurrentRatings
12.2 CheckingOutputs
Turn all output circuit breakers to the OFF position and/or remove all fuses from the
GMT fuse-holder. With no loads connected and without the battery connected, plug
in or connect the AC input cords one at a time to the AC power source. Be sure to
use the correct AC voltage for the rectier inputs.
Using a voltmeter measure theDC voltagereading acrossthe –VO and+VO bus bars
at the rear of the unit. The voltage should be approximately 54.4, 27.2, or 13.6VDC
(depending on model), which is the factory setting.