CE+T Power BRAVO ST-120 VAC-UL User manual

Copyright © 2013. Construction electroniques & telecommunications S.A.
All rights reserved. The contents in document are subject to change without notice.
The products presented are protected by several international patents and trademarks.
Address: CE+T S.a, Rue du Charbonnage 12, B 4020 Wandre, Belgium
www.cet-power.com - [e-mail]
• DUAL INPUT INVERTER
Commercial Power as default source
• AC 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
BEYOND THE INVERTER
THE NEW GENERATION OF POWER CONVERTERS
BRAVO ST - 120 VAC - UL
2 + 1 REDUNDANCY
User Manual V1.0
 www.cet-power.com
Belgium, China, India, Luxembourg, Malaysia, Russia, United Kingdom, United States, Australia & Germany

2 - Bravo ST 120 Vac - 2+1 Redundancy - User Manual - v1.0
Table of content
1. CE+T at a glance ................................................................................................................................... 5
2. Abbreviations ........................................................................................................................................ 6
3. Warranty and Safety Conditions ............................................................................................................. 7
3.1 Disclaimer................................................................................................................................... 7
3.2 Technical care ............................................................................................................................. 7
3.3 Installation .................................................................................................................................. 8
3.3.1 Handling......................................................................................................................... 8
3.3.2 Surge and Transients Protection ..................................................................................... 9
3.3.3 Other.............................................................................................................................. 9
3.4 Maintenance .............................................................................................................................. 9
3.5 Replacement and Dismantling..................................................................................................... 9
4. TSI TECHNOLOGY .................................................................................................................................. 10
4.1 EPC Mode ................................................................................................................................... 11
4.2 On-line Mode (REG Mode) ........................................................................................................... 11
4.3 Safe Mode................................................................................................................................... 11
4.4 Mix Mode & Walk-in Mode........................................................................................................... 11
5. Description ............................................................................................................................................ 12
5.1 Typical load................................................................................................................................. 13
6. Bravo ST Components............................................................................................................................ 14
6.1 Inverter Module ........................................................................................................................... 14
6.2 Sub-rack..................................................................................................................................... 14
7. Accessories ........................................................................................................................................... 15
7.1 Monitoring - T2S ETH (Included) .................................................................................................. 15
7.1.1 Parameters setting ......................................................................................................... 15
7.1.2 System diagnostic and troubleshooting ......................................................................... 15
7.1.3 Monitoring...................................................................................................................... 15
7.2 Surge Arresters ........................................................................................................................... 16
7.3 External Maintenance Bypass...................................................................................................... 16
8. Bravo ST System Installation.................................................................................................................. 17
8.1 Unpacking the system ................................................................................................................. 17
8.2 Mechanical Installation................................................................................................................ 17
8.2.1 Mounting........................................................................................................................ 17
8.2.2 Mounting the system to rack .......................................................................................... 18
8.3 Electrical Installation ................................................................................................................... 20
8.3.1 Pre-requisites................................................................................................................. 20
8.3.2 Cable Inlets .................................................................................................................... 20
8.3.3 Terminations .................................................................................................................. 21
8.3.4 Grounding ...................................................................................................................... 21
8.3.5 AC Input and Output ....................................................................................................... 22

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8.3.6 DC Input......................................................................................................................... 22
8.3.7 AC Input (AC Input protection mandatory) ....................................................................... 23
8.3.8 AC Output....................................................................................................................... 23
8.3.9 Signalling ....................................................................................................................... 23
8.4 Wiring - Receptacle..................................................................................................................... 24
8.4.1 6 X (2 x NEMA 15R Receptacles) .................................................................................... 24
8.4.2 2 X (2 X NEMA 15R Receptacles), 4 X (1 X NEMA 20R Receptacles) ................................ 24
8.4.3 6 X (1 x NEMA 20R Receptacles) .................................................................................... 25
8.4.4 Bulk Output .................................................................................................................... 25
9. Human-Machine Interface...................................................................................................................... 26
9.1 Inverter module (Requires firmware V208.4 or higher) ................................................................. 26
9.2 T2S ETH...................................................................................................................................... 26
9.2.1 T2S ETH via Web Interface.............................................................................................. 27
10. Inserting/removing/replacing modules .................................................................................................. 29
10.1 TSI Inverter.................................................................................................................................. 29
10.1.1 Module removal ............................................................................................................. 29
10.1.2 Inserting......................................................................................................................... 30
10.2 T2S ETH...................................................................................................................................... 30
10.2.1 Removal......................................................................................................................... 30
10.2.2 Inserting......................................................................................................................... 30
10.3 Fan replacement ......................................................................................................................... 31
11. Final check ............................................................................................................................................ 32
12. Commissioning ...................................................................................................................................... 33
12.1 Check list .................................................................................................................................... 33
13. Trouble shooting .................................................................................................................................... 34
13.1 Trouble shooting.......................................................................................................................... 34
13.2 Defective modules....................................................................................................................... 35
13.2.1 Replacing modules......................................................................................................... 35
13.2.2 Return defective T2S interface ....................................................................................... 35
13.2.3 Return defective shelf .................................................................................................... 35
13.2.4 Return defective modules............................................................................................... 35
14. Service ................................................................................................................................................. 36
15. Maintenance Task ................................................................................................................................. 37

Release Note:
Version Release date
(DD/MM/YYYY)
Modified page
number Modifications
1.0 12/06/2020 - Draft release of the Manual.
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1. CE+T at a glance
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 power 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.
CE+T at a glance
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2. Abbreviations
AC Alternating current
CB Circuit Breaker
DC Direct current
DSP Digital Signal Processor
EMBS External Maintenance Bypass Switch
EPC Enhanced Power Conversion
ESD Electro Static Discharge
ETH Ethernet
G Ground / Grounding
MBP Manual By-pass
MCB Miniature Circuit Breaker
MCCB Molded Case Circuit Breaker
MET Main Earth Terminal
N Neutral
PCB Printed Circuit Board
PE Protective Earth (also called Ground Conductor)
REG Regular
TCP/IP Transmission Control Protocol/Internet Protocol
TRS True Redundant Structure
TSI Twin Sine Innovation
TUS TSI Universal Synchronization
USB Universal Serial Bu
UA Urgent Alarm
NUA Non-Urgent Alarm
Abbreviations
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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, indoors, 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 de-rating of module.
•Keep the enclosure door closed during operation.
•Replace the filters on a regular basis.
Important Safety Instructions, 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 factory certified 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.
•This equipment is shipped with a SHOCKWATCH monitor. If the SHOCKWATCH shows that the equipment was
exposed to excessive force the warranty will be void.
3.2 Technical care
•This electronic 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 product 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 allowable operating temperature range is -20°C to +40°C.
•Insulated tools must be used at all times when working with live systems.
* These instructions are valid for most CE+T Products/Systems. Some points might however not be valid for the product
described in this manual.
Warranty and Safety Conditions
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•When handling the system/units pay attention to sharp edges.
•This product is suitable for use in a computer room.
3.3 Installation
•This product is intended to be installed only in restricted access areas as defined by UL60950 and in accordance
with the National Electric Code, ANSI/NFPA 70, or equivalent agencies.
•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.
•To comply with local and international safety standards N (input) and PE shall be bonded. The bonded connection
between N (input) and PE must be removed once the AC input is connected. Refer 8.3.5, page 22.
•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 T2S ETH or equivalent device; 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 environment. When installed in a dusty or humid
environment, appropriate measures (air filtering) must be taken. Installation of filters may result in de-rating of
module.
•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 removing the inverter modules. Mark inverter modules clearly with shelf and
position for correct rebuild. This is especially important in dual or three phase configurations.
•Empty module positions must not be left open. Replace with module or dummy cover.
•This equipment is shipped with a SHOCKWATCH monitor. SHOCKWATCH monitor should be inspected upon
receipt of shipment. If the SHOCKWATCH shows that the equipment was exposed to excessive force the warranty
will be void.
Warranty and Safety Conditions
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3.3.2 Surge and Transients Protection
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 with installed Bravo ST units must be equipped with 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. Grounding must be carried out prior to energizing the system. Grounding 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. Grounding must be carried out prior to
energizing the system. Grounding shall be made according to local regulations (NEC - NFPA 70).
•Prior to any work conducted on a system/unit make sure that AC input voltage and DC input voltage are
disconnected.
•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.
•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.
•Some internal components may be deemed hazardous by the local jurisdiction. Ensure all local, state, and
national guidelines are followed prior to disposal of the system or components.
•WARNING: Certain components within this product may contain chemicals which are known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov
To download the latest:
•Documents - www.cet-power.com
•Softwares - my.cet-power.com
Warranty and Safety Conditions
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TSI TECHNOLOGY
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4. TSI TECHNOLOGY 1
Inverter modules carrying the TSI logo and the EPC mark are triple port converters (AC in, DC in, AC out). Sinusoidal AC
output is converted from the AC main source and/or the DC source.
The block diagram below gives an explicit description of the topology and operation.
BOOST
DSP
T2S
EMI
FILTER
EMI
FILTER
EMI
FILTER
User
Interface
Redundant
Commuication
Bus
L
N
L’
N’
-
+
Local Signaling
The module is built around the following sub-converters
•AC to DC at input
•DC to DC at input
•DC to AC at output
The energy can flow either from the AC source or the DC source under the control of the local DSP controller. The
output sine wave is constant and disturbance free regardless of the active source due to internal energy buffering,
The function of the BOOST is for circuit protection in the event of a circuit fault condition on the output of the system.
When a circuit fault is detected, the system will multiply the output current by approximately 10x to activate the load
circuit protection device (breaker/fuse). The duration of the boost is limited to 20 ms. The power for the boost function
comes primarily from the AC input through a diode bridge. This has been designed in such a way so that it will not trip
the input AC/DC protection devices. This functionality is intended for circuit and equipment protection only. It is not for
personnel safety.
The TSI works according to True Redundant Structure (TRS) that features decentralized and independent logic,
redundant communication bus and three internal levels of disconnection to isolate a module after internal failure.
The TRS functionality is included in every inverter module. Running them in parallel provides a modular system with no
single point of failure, 100% pure sinusoidal output, high system efficiency, and 0 ms source transfer time.
REG modules: Inverter modules carrying the TSI logo together with REG mark are modules working only with DC input.
Sinusoidal output is converted from DC and the module operates as a traditional inverter. EPC Mode and the boost are
not available with REG modules.
1 Information and data given in this chapter intend to for an overview on the technology. Detailed features and parameters for each individual module type of the
range may differ and should be referred in the dedicated data sheet.

TSI TECHNOLOGY
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4.1 EPC Mode
•In EPC Mode, the AC Main source is the primary source while the DC source is secondary.
•The TSI is designed to operate on the AC main source on a permanent basis and to deliver output AC voltage
with low THD.
•There is no physical difference on the output sine wave whether the source is AC (or) DC. If the AC main source
is out of tolerance or drops below acceptable level, the converter seamlessly switches to DC and the converter
operates in “Back-up Mode” (Transfer time is 0 ms).
•As soon as the AC main source returns to its normal operating range, the EPC Mode is automatically resumed.
•The EPC Mode offers higher efficiency (up to 96% depending on the model) without compromising the purity of
the sine wave output.
•To set EPC Mode in T2S ETH, go to Parameters > Power > General > Source power ratio DC vs AC (%) and
enter the value “0”.
4.2 On-line Mode (REG Mode)
•In On-line Mode, the DC source is the primary source of supply while the AC main source works as the
secondary source of supply. Switching time between DC input and AC input is 0ms (source transfer).
•The power delivered by the DC source (usually a battery but it could be any other type of DC generator) is
converted to provide regulated and transient free AC power to the load.
•In case of short circuit at the load side, the boost is automatically energized for a specific duration to trip
downstream protective devices.
•To set On-line Mode in T2S ETH, go to Parameters > Power > General > Source power ratio DC vs AC (%) and
enter the value “100”.
4.3 Safe Mode
•Safe Mode uses the DC source as primary source of supply while the AC main source is in secondary standby.
•The AC main source is normally disconnected through an internal relay and is only connected when down
stream fault clearance is required (boost) or if the DC source is unavailable.
•The transfer time between DC and AC results in a typical transfer time of 10 ms.
•Safe Mode is used in extremely harsh environments such as railways. Under harsh conditions it provides extra
isolation against disturbances carried by the AC main source.
•To set Safe Mode in T2S ETH, go to Parameters > Power > AC In > Mode On Line (Safe) and select “Enable”
from drop down list.
4.4 Mix Mode & Walk-in Mode
•Walk-in Mode allows the inverter to come back progressively on the AC priority source after an outage. This is to
avoid block loading a generator.
To set Walk-in Mode in T2S ETH, go to Parameters > Power > Other > Walk In Mode Time (x10 s) and
select “Enable” from drop down list.
•In Mix Mode, the total output load of the module will be shared by both DC and AC input sources.
To set Mix Mode in T2S ETH, go to Parameters > Power > General > Source power ratio DC vs AC (%)
and enter the value between “0-100”. (0 - only AC, 100 - only DC)

5. Description
Bravo ST has been designed to give quality power, ease of use, and reliability. It provides up to 4 kW (Bravo ST 5 KVA)
or up to 2 kW (Bravo ST 2.5 KVA).
In normal operation:
•AC input present the TSI module will operate in EPC mode.
•AC input fail the TSI module will switch to DC (battery) and continue to feed the load.
•DC input fail the system operate on AC input.
•AC and DC input fail, the output turns off.
TSI module fail (N+1):
•If N+1 configuration selected the third module will continue to feed the load up to 5 kVA.
•If the second module fail, the system output will be reduced to 2.5 kVA
The Bravo power modules are hot swappable without shut down of the AC output.
AC
Load
=
~
DC
Load
Backup
GRID
TSI BRAVO ST
AC Input Breaker
Warning:
If all modules fails and AC input not present, the system will stop to prevent “backfeed” protection upstream.
Description
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Bravo ST 120 Vac is a standalone Inverter with following capacity.
•Modular model 5 kVA, with redundancy.
120 Vac and 48/110 Vdc as Input and 120 Vac as Output fitted with Enhanced Power Conversion (EPC) mode.
Front View
Rear View
Note: Bravo ST 120 Vac has four different AC output connections. Refer to section 8.4, page 24, to identify the
configuration which you received.
5.1 Typical load
•Resistive.
•Inductive and resistive.
•Capacitive and resistive.
Description
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Bravo ST Components
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6. Bravo ST Components
6.1 Inverter Module
Bravo: 48 Vdc 2500 VA -120 Vac.
110 Vdc 2500 VA -120 Vac.
•The Bravo module shall have software version V208.4 or higher to operate with Bravo ST.
•The TSI Bravo is a 2500 VA / 2000 W converter based on the TSI technology (see section 4, page 10).
•The TSI inverter modules are hot swappable and hot pluggable. They are featured with self setting capabilities
for easy plug-and-play operation.
•LED’s on module front plate display the status of converter and output power.
•The inverter modules are equipped with soft start.
•The fan is equipped with an alarm and run time meter. It is field replaceable.
•17.13” (D) x 4.02” (W) x 3.46” (H). [435 mm (D) x 102 mm (W) x 88 mm (H)].
•11 lbs [5 kg].
6.2 Sub-rack
•The Bravo ST 120 Vac shelf shall be integrated in min 600 mm deep cabinets, 19 inch / ETSI mounting.
•The Bravo ST 120 Vac shelf houses maximum three (3) inverter modules and one (1) T2S interface.
Maximum 5 kVA per shelf.
•The Bravo ST 120 Vac shelf is designed with individual DC input, common AC input and common AC output.
•549.28 mm (D) x 443.30 mm (W) x 176.50 mm (H).
482.30 mm
549.28 mm
176.50 mm
443.30 mm

7. Accessories
7.1 Monitoring - T2S ETH (Included)
The T2S ETH is an interface giving access to the TSI modules that are connected together in any TSI systems.
The T2S ETH doesn’t perform any control or management of the TSI system. It can be removed, replaced or moved to
another live system without affecting the original TSI system operation nor the target system.
7.1.1 Parameters setting
The T2S ETH supports IPv4 network and featured with an ETH port at the front. Connected to a laptop, it enables TSI
system settings, modules and phase assignments, and other various adjustments to allow TSI best fit with actual site
conditions.
(Operation of T2S ETH is described in separate manual available on request)
7.1.2 System diagnostic and troubleshooting
The T2S ETH is featured with a built-in user interface to allow on-line diagnostic through the laptop.
Installers and maintenance technicians should always carry a proper laptop to access/reconfigure the system on-site.
(Operation of T2S ETH is described in a separate manual available on request)
7.1.3 Monitoring
The T2S ETH monitors max of 32 system modules.
The T2S ETH is featured with
•3 digital output alarm contacts.
•2 digital input contacts.
•MODBUS.
•Alarm monitoring.
•Log file of the latest 2000 events as FIFO.
•SNMP v1 through T2S ETH.
•SNMP v2c and v3 through Catena (If T2S ETH is connected to Catena).
•Power: 2 W
•Part Number
48 Vdc Model: T322010100
110 Vdc Model: T322051000
Accessories
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7.2 Surge Arresters
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 with installed Bravo ST units must be equipped with 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. Grounding must be carried out prior to energizing the system. Grounding shall be
made according to local regulations.
7.3 External Maintenance Bypass
CE+T offers specialized bypass units compatible with your inverter system. If an external bypass is required, please
consult your sales representative.
EMBS units from other manufacturers are not compatible due to UL restrictions.
Part number:
•Wall Mount Bypass: T30960W030
•Rack Mount Bypass: T30960R030
Accessories
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8. Bravo ST System Installation
8.1 Unpacking the system
Bravo ST is packed in a wooden box.
Modules are packed separately.
Module packing material shall be taken apart and stored in case of return under warranty. Improper packing may void
the warranty.
The packing material of the TSI system is recyclable.
8.2 Mechanical Installation
•Sub-rack is preferable mechanically fixated without modules.
•T2S-2U can be left in the system.
•Min two (2) fixing screws per side of the system.
•Fixing holes for inch and ETSI mounting frames.
8.2.1 Mounting
A full range of accessory is ready made to allow easy integration of the TSI in almost any kind of standard cabinets.
Among other we provide fixing set for:
•19” – 600 mm depth cabinets.
•19” – 800 mm depth cabinets.
•ETSI – 600 mm depth cabinets.
•19” and 23” mid mounting brackets is supplied by default.
•Mounting in a 23” rack is acceptable. Optional adapter plates may be ordered (Part number: PD6010018/1).
Bravo ST System Installation
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8.2.2 Mounting the system to rack
CE+T offers adapter plates to mount the Bravo ST System into the 23-inch open relay racks.
These can be ordered by contacting CE+T.
•Adapter Plate Part Number: PD6010018/1
•Adapter Plate is pre-threaded for use with SAE #10/32 bolts
All Bravo ST Systems are designed for 19-inch mounting applications, but it can be mounted in 23-inch, two post,
open relay rack/ network frame assemblies if required in application.
It is mandatory to use bottom support or slider when installing the system in 19-inch ETSI cabinet.
Fix the Brackets, Bottom Support / Slider to the rack using SAE #10/32 bolts, which is supplied along with the kit and
then fix the system in the rack.
8.2.2.1 Mounting the system into 19 inch rack
Cabinet
Mounng Screw
Place the System in the rack.
Fix the system in the rack with
supplied mounting screws.
Bravo ST System Installation
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8.2.2.2 Fixing the system into 23 inch rack
Note: Mounting adapters defined herein are not intended for use in 4 post relay rack.
Place the bracket in the rack.
Fix the bracket with supplied
mounting screws.
Fix the system with supplied
mounting screws.
Bravo ST System Installation
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8.3 Electrical Installation
8.3.1 Pre-requisites
•The system have markings for all terminations.
•All cables shall be rated at min 90° C.
•Electrical terminations shall be tightened with 5 N.m (45 lbf.in).
•DC connection screws are M6 x 12 mm and AC connection with terminal block.
•DC Input-Individual (per module); observe polarity.
•AC Input / AC output – Bulk, respect phases.
•Wire all positions in the system as per markings.
•Input AC / Output AC / Input DC / Signal cables shall be separated.
•Cable crossings shall be done at 90° angles.
•It is recommended to install appropriate breaker at AC input and place a warning label near the breaker
stating message as “PROTECTED CIRCUIT: ISOLATE UNINTERRUPTIBLE POWER SUPPLY (UPS) BEFORE WORKING
ON THIS CIRCUIT”.
8.3.2 Cable Inlets
AC IN DC IN
Alarm
R
e
a
r
S
i
de
Bravo ST System Installation
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