CE+T Power Sierra 10 - 48/230 User manual

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Address: CE+T S.a, Rue du Charbonnage 12, B 4020 Wandre, Belgium
www.cet-power.com - [e-mail]
SIERRA 10 - 48/120
User Manual V1.1
THE NEW GENERATION OF POWER CONVERTERS
• DUAL AC AND DC OUTPUT CONVERTER
Commercial Power as default source
• AC AND DC BACKUP IN A DC ENVIRONMENT
Leverage your existing DC infrastructure
• ONE STOP SHOP
Wide output power range
• HARSHEST AC INPUT CONDITIONS
Without compromising the quality of the AC output

2 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Table of Contents
1. Introduction to CE+T.............................................................................................................................. 6
2. Abbreviations......................................................................................................................................... 7
3. Warranty and Safety Conditions ............................................................................................................. 8
3.1 Disclaimer................................................................................................................................... 8
3.2 Technical care............................................................................................................................. 8
3.3 Installation .................................................................................................................................. 9
3.3.1 Handling......................................................................................................................... 9
3.3.2 Surge and transients ...................................................................................................... 10
3.3.3 Other.............................................................................................................................. 10
3.4 Maintenance .............................................................................................................................. 10
3.5 Replacement and Dismantling..................................................................................................... 10
4. ECI Technology....................................................................................................................................... 11
4.1 EPC mode ................................................................................................................................... 12
4.2 Back up mode............................................................................................................................. 12
5. Building Blocks ...................................................................................................................................... 13
5.1 Sierra 10 - 48/120 ...................................................................................................................... 13
5.1.1 Specifications................................................................................................................. 13
5.2 Sub-rack..................................................................................................................................... 15
5.3 Controller Unit ............................................................................................................................. 15
5.3.1 Inview Slot ..................................................................................................................... 15
5.4 Inview S ...................................................................................................................................... 17
5.4.1 Inview S - Connections................................................................................................... 17
5.5 Measure Box Battery (MBB)......................................................................................................... 18
6. System Installation................................................................................................................................. 19
6.1 Transformer and Generator Sizing ............................................................................................... 19
6.2 Mounting kit for Sierra 10 shelf ................................................................................................... 20
6.3 Cable Routing and Fixation .......................................................................................................... 21
6.3.1 Grounding ...................................................................................................................... 21
6.4 Electrical Installation for Sierra 10 shelf....................................................................................... 22
6.4.1 Pre requisites ................................................................................................................. 22
6.4.2 Terminations .................................................................................................................. 22
6.4.3 Single phase configuration - 120 Vac ............................................................................. 23
6.4.4 Split phase or Single phase configuration - 240 Vac ....................................................... 24
6.4.5 Three Phase Configuration - 208 Vac.............................................................................. 25
6.4.6 AC Input and Output ....................................................................................................... 26
6.4.7 DC.................................................................................................................................. 27
6.4.8 Sierra 10 System with Inview S - Connections................................................................ 28
6.4.9 Signalling ....................................................................................................................... 28
7. Interface ................................................................................................................................................ 30
7.1 Inverter module........................................................................................................................... 30

3 – Sierra 10 - 48/120 VAC – User Manual – v1.1
7.2 Inview Slot - LCD Display ............................................................................................................ 31
7.2.1 LED indications .............................................................................................................. 31
7.2.2 Menu structure............................................................................................................... 32
7.3 Inview S - LCD interface.............................................................................................................. 33
7.3.1 LED indications .............................................................................................................. 33
7.3.2 Menu structure............................................................................................................... 34
7.4 LCD interface - Terminology ....................................................................................................... 35
7.5 Inview S and Inview Slot - Web Interface ..................................................................................... 36
7.5.1 Login.............................................................................................................................. 37
7.5.2 Interface Areas ............................................................................................................... 37
7.5.3 Web page Controls ......................................................................................................... 39
8. Replacement procedures ....................................................................................................................... 41
8.1 Module - Sierra 10 ...................................................................................................................... 41
8.1.1 Removal......................................................................................................................... 41
8.1.2 Inserting......................................................................................................................... 41
8.2 Controller - Inview Slot ................................................................................................................ 42
8.2.1 Removal......................................................................................................................... 42
8.2.2 Inserting......................................................................................................................... 42
8.3 Controller - Inview S.................................................................................................................... 43
8.3.1 Panel Mounting .............................................................................................................. 43
9. Finishing................................................................................................................................................ 44
10. Commissioning ...................................................................................................................................... 45
10.1 Check list .................................................................................................................................... 46
11. Trouble Shooting and Defective Situations Fixing.................................................................................... 47
11.1 Trouble Shooting ......................................................................................................................... 47
11.2 Defective modules....................................................................................................................... 48
12. Maintenance.......................................................................................................................................... 49
12.1 Access Inview with Laptop .......................................................................................................... 49
12.2 Manual check.............................................................................................................................. 49
12.3 Optional ...................................................................................................................................... 49
13. Service .................................................................................................................................................. 50
14. Appendix................................................................................................................................................ 51
14.1 Sierra 10 - 48/120 - Dimensions................................................................................................. 51
14.1.1 Module........................................................................................................................... 51
14.1.2 Shelf .............................................................................................................................. 51
14.2 Inview S with MBB - Wiring diagram............................................................................................ 52
14.3 Inview Slot with MBB - Wiring diagram........................................................................................ 53

4 – Sierra 10 - 48/120 VAC – User Manual – v1.1
14.4 System Connections and Wiring Diagrams................................................................................... 54
14.4.1 Single phase (L-N).......................................................................................................... 54
14.4.2 Single phase (L-N) - REG................................................................................................ 55
14.4.3 Single shelf - Split phase (L1-L2-N) ............................................................................... 56
14.4.4 Single shelf - Split phase (L1-L2-N) - REG...................................................................... 57
14.4.5 Two shelves - Split phase (L1-L2-N)............................................................................... 58
14.4.6 Two shelves - Split phase (L1-L2-N) - REG ..................................................................... 59
14.4.7 Three phase (L1-L2-L3-N).............................................................................................. 60
14.4.8 Three phase (L1-L2-L3-N) - REG.................................................................................... 61
14.5 Modules - Parameter List ............................................................................................................ 62

Release Note:
Version Release date
(DD/MM/YYYY) Modified page number Modifications
1.0 07/02/2022 - First release of the manual
1.1 15/09/2022 - Updated the shelf connections
5 – Sierra 10 - 48/120 VAC – User Manual – v1.1

1. Introduction to CE+T
CE+T Power designs, manufactures and markets a range of products for industrial operators with mission critical
applications, who are not satisfied with existing AC backup systems performances, and related maintenance costs.
Our product is an innovative AC backup solution that unlike most used UPS’s
•Maximizes the operator’s applications uptime;
•Operates with lowest OPEX;
•Provides best protection to disturbances;
•Optimizes footprint.
Our systems are:
•Modular
•Truly redundant
•Highly efficient
•Maintenance free
•Battery friendly
CE+T power puts 60+ years expertise in power conversion together with worldwide presence to provide customized
solutions and extended service 24/7 - 365 days per year.
6 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Introduction to CE+T

2. Abbreviations
AC Alternating current
DC Direct current
DHCP Dynamic Host Configuration Protocol
DSP Digital Signal Processor
ECI Enhanced Conversion Innovation
EPC Enhanced Power Conversion
ESD Electro Static Discharge
ETH Ethernet
HTTP HyperText Transfer Protocol
HTTPS Secure HyperText Transfer Protocol
LAN Local Access Network
MBB Measure Box Battery
MBP Manual By-pass
MET Main Earth Terminal
MIB Management Information Base
N Neutral
NTP Network Time Protocol
NUA Non-Urgent Alarm
PCB Printed Circuit Board
PE Protective Earth (also called Main Protective Conductor)
PWR Power
REG Regular
SNMP Simple Network Management Protocol
TCP/IP Transmission Control Protocol/Internet Protocol
TRS True Redundant Structure
UA Urgent Alarm
USB Universal Serial Bus
7 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Abbreviations

3. Warranty and Safety Conditions*
WARNING:
The electronics in the power supply system are designed for an indoor, clean environment.
When installed in a dusty and/or corrosive environment, outdoor or indoor, it is important to:
•Install an appropriate filter on the enclosure door, or on the room’s air conditioning system. Installation of filters
may result in derating of module.
•Keep the enclosure door closed during operation.
•Replace the filters on a regular basis.
Important Safety Instructions and Save These Instructions.
3.1 Disclaimer
•The manufacturer declines all responsibilities if equipment is not installed, used or operated according to the
instructions herein by skilled technicians according to local regulations.
•Warranty does not apply if the product is not installed, used or handled according to the instructions in the
manual. Manufacturer may waive warranty if the system is not installed and commissioned by factory trained
technician.
3.2 Technical care
•This electric equipment can only be repaired or maintained by a “qualified employee” with adequate training.
Even personnel who are in charge of simple repairs or maintenance are required to have knowledge or
experience related to electrical maintenance.
•Please follow the procedures contained in this Manual, and note all the “DANGER”, “WARNING” AND “NOTICE”
marks contained in this Manual. Warning labels must not be removed.
•Qualified employees are trained to recognize and avoid any dangers that might be present when working on or
near exposed electrical parts.
•Qualified employees know how to lock out and tag out machines so the machines will not accidentally be turned
on and injure employees working on them.
•Qualified employees are trained in OSHA and NFPA safety related work practices, and NFPA 70E Arc Flash
Protection and PPE requirements.
•All operators are to be trained to perform the emergency shut-down procedure.
•Never wear metallic objects such as rings, watches, or bracelets during installation, service and maintenance of
the product.
•The maximum operating ambient temperature of the system is 40°C (104°F).
•Insulated tools must be used at all times when working with live systems.
•When handling the system/units pay attention to sharp edges.
•This product is suitable for use in a computer room.
* These instructions are valid for most CE+T Products/Systems. Some points might however not be valid for the product
described in this manual
8 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Warranty and Safety Conditions

3.3 Installation
•This product is intended to be installed only in restricted access areas as defined by UL UL60950 and in
accordance with the National Electric Code, ANSI/NFPA 70, or equivalent agencies and in a temperature-
regulated, indoor area that is relatively free of conductive contaminants.
•The Inverter System may contain output over current protection in the form of circuit breakers. In addition to
these circuit breakers, the user must observe the recommended UL listed upstream and downstream circuit
breaker requirements as defined in this manual.
•Please use extreme caution when accessing circuits that may be at hazardous voltages or energy levels.
•The modular inverter rack is a dual input power supply. The complete system shall be wired in a way that both
input and output leads can be de-energized when necessary.
•REG systems and EPC systems that have no AC input wired and connected can be seen as independent power
sources. To comply with local and international safety standards N (output) and PE shall be bonded. The bonded
connection between N (output) and PE must be removed once the AC input is connected.
•AC and DC circuits shall be terminated with no voltage / power applied (de-energized).
•The safety standard IEC/EN62040-1-1 requires that, in the event of an output short circuit, the inverter must
disconnect in 5 seconds maximum. The parameter can be adjusted on Inview; however, if the parameter is set at
a value > 5 seconds, an external protection must be provided so that the short circuit protection operates within
5 seconds. Default setting is 60 seconds.
•The system is designed for installation within an IP20 or IP21 environment. When installed in a dusty or humid
environment, appropriate measures (air filtering) must be taken.
•All illustrations in the manual are for general reference, refer to the technical drawing which is received along
with the system for exact information.
•Environment Conditions:
Storage Conditions: -40 to 70°C
Relative Humidity: 95%, non-condensing
Altitude above sea without de-rating: Less than 1500 m
Greater than 1500 m – de-rating at 0.8% per 100 m
3.3.1 Handling
•The cabinet shall not be lifted using lifting eyes.
•Remove weight from the cabinet by unplugging the inverters. Mark inverters clearly with shelf and position for
correct rebuild. This is especially important in dual or three phase configurations.
•Empty inverter positions should not be left open. Replace with blank module or cover.
9 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Warranty and Safety Conditions

3.3.2 Surge and transients
The mains (AC) supply of the modular inverter system shall be equipped with Lightning surge suppression and
Transient voltage surge suppression suitable for the application. Follow manufacturer’s recommendation for
installation. Selecting a device with an alarm relay for function failure is advised.
All sites are considered to have a working lightning surge suppression device in service and installed close enough to
ensure effective protection in accordance with best industry practice.
•Indoor sites Min Class II.
•Outdoor sites Min Class I + Class II or combined Class I+II. The modular inverter system/rack can reach
hazardous leakage currents. Earthing must be carried out prior to energizing the system. Earthing shall be made
according to local regulations.
3.3.3 Other
•Insulation test (Hi-Pot) must not be performed without instructions from the manufacturer. Irreparable damage
may occur.
3.4 Maintenance
•The modular inverter system/rack can reach hazardous leakage currents. Earthing must be carried out prior to
energizing the system. Earthing shall be made according to local regulations.
•Prior to any work conducted on a system/unit make sure that AC input voltage and DC input voltage are
disconnected.
•CAUTION – Risk of electric shock. Inverter modules and shelves contain capacitors for filtering and energy
storage. Prior to accessing the system/modules after power down, wait at least 5 minutes to allow capacitors to
discharge.
•CAUTION –During system operation, the system and module surfaces will be hot. Do not touch, and
contact may cause severe burns. So, please turn off the power and allow it to cool before accessing.
•Some components and terminals carry high voltage during operation. Contact may result in fatal injury.
3.5 Replacement and Dismantling
•ESD Strap must be worn when handling PCB’s and open units.
•CE+T cannot be held responsible for disposal of the Inverter system and therefore the customer must segregate
and dispose of the materials which are potentially harmful to the environment, in accordance with the local
regulations in force in the country of installation.
•If the equipment is dismantled, to dispose of its component products, you must comply with the local regulations
in force in the country of destination and in any case avoid causing any kind of pollution.
To download the latest documentation and software, please visit our website at www.cet-power.
com
10 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Warranty and Safety Conditions

11 – Sierra 10 - 48/120 VAC – User Manual – v1.1
ECI Technology
4. ECI Technology1
Sierra module built with ECI technology and it is a triple port converter. This module deliver pure sinusoidal output and
ripple free DC output from AC mains or battery.
The below block diagram gives an explicit description of the topology and its operation.
ECI technology has AC to DC, DC to AC, and DC to DC converters to provide constant and disturbance-free output
power regardless of the input source.
The power flows either from AC or DC source under the control of the DSP controller. Thanks to internal energy
buffering for transferring the load between two input sources by 0 ms.
In the case of a short circuit at the AC output, the converter will provide 4 x In during 20 ms to force output MCB to trip.
Breaker selectivity shall be adapted according to the power available.
Sierra module works on True Redundant Structure (TRS) that features decentralized, independent logic, and redundant
communication bus.
Each Sierra module has three levels of protection, and it will help to isolate from other modules in case of any fault in
the corresponding module. Due to this functionality in each module, it provides no single point of failure in modular
systems.
The Sierra modular systems provide quality output power with higher efficiency.
1 Information and data given in this chapter is intended to serve as an overview of the ECI Technology. Detailed features and parameters for each individual
module type in the range may differ and should be referred to in the dedicated data sheet.

12 – Sierra 10 - 48/120 VAC – User Manual – v1.1
ECI Technology
4.1 EPC mode
In EPC mode, the AC Mains is the primary source and DC source works as a backup. When AC mains is present, the
sierra module takes energy from the AC source and feed to:
•AC Load via a double conversation to provide a pure sine wave.
•DC load and also charges the battery with a regulated DC.
AC IN AC Out
DC Out
Battery
The total output power of a module can be shared between the AC load, DC load and charging power based upon the
requirement.
If the AC source is not present, the module seamlessly switches to DC source without impacting the critical loads and
resumes to EPC mode once AC source returns. The transfer time between AC to DC and DC to AC is 0 ms.
The EPC mode provides a higher efficiency of 96% without compromising the purity of the output sine wave.
4.2 Back up mode
In back up mode, module operates in DC source and feed to:
•AC Load via a double conversation to provide a pure sine wave.
•DC load directly.
AC IN AC Out
DC Out
Battery

13 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Building Blocks
5. Building Blocks
5.1 Sierra 10 - 48/120
Telecom / Datacom: Input 48 Vdc
120 Vac, 50/60 Hz
Output 120 Vac and 48 Vdc
Power 1000 VA / 800 W
•The Sierra converter is a triple port converter.
•Each converter can supply 800 W on any DC, AC or combination of both AC and DC output ports. AC output load
is the highest priority. Even if AC / DC output is fully loaded (800 W), still 200 W is available for AC / DC output.
•Hot swappable and hot pluggable.
•The front LED’s indicate the converter status and output power.
•Module is equipped with soft start.
•Fan is equipped with alarm and run time meter. The fan is field replaceable.
•346 mm (D) x 87 mm (W) x 1U (H).
•1.5 Kg.
5.1.1 Specications
Model Sierra 10 - 48/230
Part Number: Module / Shelf T711330201 / T714330000
Cooling / Audible noise Fan forced cooling / <65db @1meter
MTBF 200 000 hrs at 30°C, @80% load (MIL-217-F)
Dielectric strength DC/AC 4300 Vdc
RoHS Compliant
Operating T° / Relative Humidity (RH) non-
condensing
Tested according ETS300-019-2-3 Class 3.1
-20°C to 65°C, power de-rating from 40°C to 65°C / Max
RH 95% for 96 hours per year
Storage T° / Relative Humidity (RH) non-condensing Tested according ETS300-019-2-1 Class 1.2
-40°C to 70°C / Max RH 95% for 96 hours per year
Public transport T°/Relative Humidity (RH) non-
condensing
Tested according ETS300-019-2-2 Class 3.1
-40°C to 70°C / Max RH 95% for 96 hours per year
Material (casing) Zinc coated steel
AC Input Data
Nominal voltage (AC) / Current 120 Vac / 9.2 A
Voltage range (AC) 95 - 140 Vac
Brownout < 108 Vac linear decreasing
Power factor / THD > 99% / < 3%
Frequency range (selectable) / synchronization range 60 Hz (range 57 – 63 Hz) / 50 Hz (range 47 – 53 Hz)

DC Input Data
DC voltage: Nominal / range 48 Vdc / (40-60V)
Nominal current (at 48 Vdc and 800 W output) 18.5 A
Maximum input current (for 15 second) / voltage
ripple 22.5 A / < 10 mV RMS
AC Output Data
Efficiency AC to AC (EPC) / DC to AC / AC to DC 94% / >92% / >92%
Nominal voltage AC (Adjustable) 120 V (100 - 130 Vac)
Frequency / frequency accuracy 50 or 60 Hz / 0.03%
Nominal Output power (VA) / (W) 1000 VA / 800 W (at 800 W AC load, still 200 W are
available for 48V DC load)
Short time overload capacity 125% (15 seconds)
Admissible load power factor Full power rating from 0 inductive to 0 capacitive
Total harmonic distortion (resistive load) < 3%
Load impact recovery time (10% - 90%) ≤ 0.4 ms
Nominal current 8.3 A @ 120 Vac
Crest factor at nominal power 3 : 1 for load P.F. ≤ 0.7
Short circuit clear up capacity 0-20 ms 34 A
Short circuit current after 20 ms 16.5 A for 15 sec, 12.5 A from 15 to 60 sec , after 60 sec -
manual reset is required
AC output voltage stability ±1% from 10% to 100% load
DC Output Data
Nominal voltage (range) 53.5 Vdc (44 - 60 Vdc)
Maximum power 800 W (at 800 W DC load, still 200 W are available for AC
load)
Maximum current at 48 Vdc 16.7 A
Reverse polarity protection YES
Efficiency AC to DC > 92%
Max. Voltage interruption / total transient voltage
duration (max) 0 sec / 0 sec
Signalling & Supervision
Display Synoptic LED
Supervision / Part number Inview S Slot - T602004110 and Inview S - T302004100
Remote on / off On rear terminal of the shelf through Inview
Battery Monitoring / Part number MBB (Measure Box Battery) - 6 dry contacts and 8 digital
Inputs / T302006000
Safety & EMC
Safety UL1778
EMC
EN 61000-4-2 / EN 61000-4-3 / EN 61000-4-4 / EN
61000-4-5 / EN 61000-4-6 / EN 61000-4-8
ETSI EN 300386 v1.9.1 / FCCpart 15 class A
14 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Building Blocks

5.2 Sub-rack
•The shelf is designed with both Single-phase and Split-
phase
•The Sierra shelf shall be integrated in min 600 mm deep
cabinets, Inch/ETSI mounting
•The shelf house max four modules and one Inview Slot
•The extension shelf house max five modules
•Each shelf has common DC input, AC Input and AC Output
•It is featured with rear protection cover (IP 20)
•Max 5 kVA / 4 kW per shelf
•Dimension: 370 mm (D) x 19” (W) x 1U (H)
•Weight: 2.5 Kg (without modules)
5.3 Controller Unit
5.3.1 Inview Slot
Inview Slot is an advanced monitoring and controller unit for Bravo
10 and Sierra 10 power systems. The product is specially designed
in 1U height to accommodate in the module shelf and reduces the
additional space in the cabinet.
It allows the user to easily access the system information through
inbuilt powerful LCD touch screen graphic display. In addition to
the touch screen display, the user can also access the system
information through the web interface.
The Inview Slot interface provides the user to access the configuration and setup files of the modules in the system.
Inview Slot can monitor up to 32 converters and featured with:
•LCD touch screen display
•2 Digital Inputs
•2 Output Relay contacts
•Records 5000 events as FIFO
Note: In the Sierra shelf, signalling connections are present at
left first slot. So the Inview Slot controller should be placed only
at the left side of the first slot in the shelf, while you are looking
from the front.
Sierra 10 - Subrack system
15 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Building Blocks

5.3.1.1 Inview Slot - Connections
Inview Slot has an ETH port and USB at the front. Output relays, free potential contacts, Modbus and power
connections are present at the rear side of the Inview Slot connected shelf.
Inview Slot - Front connections
•LAN port is used for network connectivity and user can access the system
information in the Web Interface.
•USB port is used to access the Inview S configuration and setup files.
Inview Slot - Shelf rear connections
•Digital Inputs (D1 and D2): Two potential free Digital Inputs are available for customer connections.
Digital Input 1 is assigned for MBP operation if used.
Digital Input 2 is assigned for Surge Arrester if used.
•Output Relays (K1 and K2): Two output relays are available and can be used for Major and Minor Alarms.
•CAN Modbus (RS485) port is used to establish communication between Inview Slot and MBB. It also provide the
+12 Vdc power to one connected MBB.
•Power: The additional +12 V for Inview Slot and it is from external Auxiliary power supply converter. This power
should not be shared with other devices.
Note: By default, Inview Slot works on system DC. If DC is not present, it takes +12 V from external Auxiliary
power supply converter (AC to DC).
K1 K2
NO NO
NC NC
C C
Power
PE
D1 D2
CAN
Modbus
(RS485)
Shelf Rear
ETH
USB
16 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Building Blocks

5.4 Inview S
Inview S is an advanced monitoring and controller unit for Bravo 25, Bravo 10, Sierra 25, and Sierra 10 power
systems. It allows the user to easily access the system information through inbuilt powerful touch screen graphic
display. In addition to the touch screen display, the user can also access the system information through the web
interface and SNMP protocol.
The Inview S interface provides the user to access the configuration and setup files of the modules in the system. Also,
it is a controller for DC regulation.
Inview S can monitor up to 32 converters/converters and featured with:
•LCD touch screen display
•2 Digital Inputs
•2 Output Relay contacts
•Records 5000 events as FIFO
5.4.1 Inview S - Connections
Inview S is composed of multiple network ports and inbuilt free potential contacts.
C
-
C
+
-
NC
+Digital Input 2
Digital Input 1
Output Relay 2
Output Relay 1
Power 12 Vdc
NC
PE
NO
-
NO
+
CAN
iso RS485
ETH
USB
CE+T COM
•CE+T COM port is dedicated to establish connection between Inview S and Sierra 10 - shelf.
•ETH port is used for network connectivity and user can access the system information in the Web Interface.
•CAN / iso RS485 is used share the system (DC) information to MBB (Measure Box Battery).
(Note: In future version, user can use this port for RS485-Modbus communication)
•USB port is used to access the Inview S configuration and setup files.
•Digital Inputs (D1 and D2): Two potential free Digital Inputs are available for customer connections.
Digital Input 1 is assigned for MBP operation if used.
Digital Input 2 is assigned for Surge Arrester if used.
•Output Relays (K1 and K2): Two output relays are available and can be used for Major and Minor Alarms.
•Power: The unregulated separate +12 V power supply is required for powering Inview S and this power should
not be shared with other devices. (CET can provide Auxiliary Power Supply converter and the part number is
T602004120).
17 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Building Blocks

5.5 Measure Box Battery (MBB)
Measure Box Battery is a unit which monitors the Battery. It is composed of multiple digital inputs and analog outputs.
They are used for:
•Battery management
Voltage (V1 to V3)
Current (I1 to I3)
Temperature (T1 and T2)
Driving the Low Voltage Disconnection
•8 Digital Input (D1 to D8)
•6 Output Relay (k1 to K6)
18 – Sierra 10 - 48/120 VAC – User Manual – v1.1
Building Blocks

6. System Installation
Input and output protections
When installing Sierra 10 inverter systems, UL489 listed AC upstream (input) and downstream (output) circuit breakers
are required. Refer section 6.4.6, page 26.
AC Input and Output
•Branch circuit protection breaker should be provided in upstream switchgear regardless of any protective device
already installed at the input of the Sierra 10 system.
•An appropriate branch protection should be provided between the Sierra 10 System and the load.
DC
•An appropriate DC over current protection device should be installed at both Input and Output.
Output distribution should be structured to guarantee tripping segregation. Contact the manufacturer for
recommendations and calculation methodology.
•Refer to section 6.4.6, page 26 for sizing protections and connecting cables. All cables must be copper rated
for min 90°C (194°F).
•All cables must be C-UL-US or CSA Listed cables.
•All cables lugs must be C-UL-US or CSA listed. They must be sized according to the rated current of the
converter system and to the customer terminal connection.
•Wire all positions for future expansion.
•Input AC / Output AC / Input DC / Signal cables shall be separated.
•Cable crossings shall be done in 90 deg angles.
•Empty converter positions shall be covered with blank module.
•Sierra 10 system is designed for temperature controlled (40°C / 104°F max) and clean environments. The
presence of airborne particles such as urban dust, sand, metallic dust, and corrosive vapours is forbidden. Install
only in a relatively free of conductive contaminants environment.
6.1 Transformer and Generator Sizing
The inverter is capable of operating at 125% of rated capacity for 15 seconds.
•Transformers supplying AC to the converter should be sized at a minimum of 1.25 times the kVA rating of the
converter to meet this requirement.
•Generators supplying emergency AC to the building and to the converter should be sized at a minimum of two
times the kVA rating of the converter.
19 – Sierra 10 - 48/120 VAC – User Manual – v1.1
System Installation

6.2 Mounting kit for Sierra 10 shelf
Sierra 10 shelf mounting kit is designed to fix in different depth cabinets. The part number is T319000001 and has the
following accessories in the kit.
4 x Fixing brackets 2 x Sliders 8 x (M5 Philips head screws and nuts)
2 x (M6 Hex socket screws, cage nuts and nuts) 6 x (M6 Philips head screws and cage nuts)
Perform the following steps to install the shelf mounting kit in the cabinet:
1. Adjust the slider and brackets depending upon the cabinet depth, and fix it with M5 screws and nuts. If holes are
available in the kit, fix it with the additional screws and nuts to increase the kit strength.
2. Place the assembled mounting kit in the cabinet and fix it on the front side at any one hole with the M6 Hex
socket screw and cage nut. (Note: Tighten the Hex socket screw with Allen key till it touches behind the metal
part.)
3. Fix the other end of the mounting kit at cabinet rear using the M6 Philips head screw and cage nut.
4. Similarly, assemble another mounting kit and fix it on another side of the cabinet.
Adjust the slider and brackets Fix it with screws and nuts Fix the assembled kit in the cabinet
Screw, mounng kit & cage nut arrangement
Mounting kit
Cage nut
Hex socket
Screw
Cabinet frame
Tighten the screw ll it touches the metal part
5. Place the shelf on the mounting kit and fix it with a M6 nut in the already installed hex socket screw used for the
mounting kit.
6. Fix the other hole of the shelf in the cabinet using M6 Philips head screw and cage nut.
7. Similarly, fix the other side of the shelf and insert modules in the corresponding slot.
Place the shelf in the cabinet and x it Insert the modules in the shelf
Philips head screw Hex socket screw
Nut
20 – Sierra 10 - 48/120 VAC – User Manual – v1.1
System Installation