REKOSER RTI Series User manual

RTI Series
Telecom Sine Wave inverter
User Manual

Preface
This REKOSER RTI series power supply equipment that has high voltages able to endanger
personal safety, please carefully read relevant contents of this Manual before installing and
using the equipment.
【Notices】
Before operation, please carefully read this User Manual to understand the
correct use method of the equipment. After reading, please properly preserve it
for further inspection.
Warning: the machine shall be installed by the trained technical personnel.
Before installation, please be sure to clearly understand the following issues:
●Whether the voltage provided by the DC bus is the rated DC input voltage
of the REKOSER RTI series inverter.
●Usually, the red wire is connected to the positive electrode of the battery
pack while the black wire is connected to the negative electrode of the
battery pack. Please be sure to connect the DC bus according to “+” and
“-” polarity.
●During battery pack installation, firmly connect the battery pack
according to the connection method and sequence specified in the
battery installation instruction. It is forbidden to connect the positive and
negative electrodes of the battery in short circuit or simultaneously
contact any two binding posts of the battery or the exposed ends of the
connecting wire; or else, the battery may be damaged or cause personal
injury.
●Please notice: even if the Mains is cut o, the REKOSER RTI series inverter
may still internally have the high voltage able to endanger personal
safety.
●Please notice: the DC input terminal and the AC input terminal of the
inverter shall be provided with air switches in order to cut o power
supply for maintenance and fault.
●Please cautiously use it in the occasions involving life safety.
Statement: due to the continuous updating and perfecting of products and technologies,
the contents of this Manual may not be completely consistent with the practical products.
Please understand this. For inquiring about the updating condition of the product, please
contact the dealer.

User Manual for RTI series
Table of Contents
Chapter I Safety Instruction 5
1.1 Safety instruction 5
1.2 General safety protection 5
1.3 Battery related operation safety protection 5
Chapter II Overview 6
2.1 Introduction 6
2.2 Functions and features 6
2.3 Technical characteristics and parameters 7
2.3.1 Sine Wave series model code 7
2.3.2 Sine Wave series model list 8
2.4 Technical characteristics and parameters 8
2.4.1 Technical index 8
Chapter III Structure and Principle 11
3.1 Hardware structure and working principle 11
3.2 Operation mode 11
3.2.1 AC power supply mode 11
3.2.2 DC power supply mode 12
3.3 Appearance and indicator light 12
Chapter IV Installation and Debugging 13
4.1 Installation preparation 13
4.1.1 Tool, instrument and data 13
4.1.2 Installation environment inspection 13
4.1.3 Connecting cable 13
4.1.4 Unpacking and cargo inspection 14
4.2 Installation 14
Chapter V Use and Operation 16
5.1 Power-on and power-o 16
5.1.1 The first time startup 16
5.1.2 Daily operation 16
5.2 Use operation 16
5.2.1 Startup 16
5.2.2 Shutdown 17
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User Manual for RTI series
5.2.3 Mute 17
Chapter VI Operation Status and Display 18
6.1 Indicator light and button definition 18
6.2 Indicator light display list 18
6.3 Specification for LCD display menu 19
Chapter VII Alarm and Monitoring 20
7.1 Remote control and alarm 20
7.1.1 Interface definition 20
7.2 Common fault handling 21
7.3 Case structure chart 21
Quality Warranty Card 22
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User Manual for RTI series
Chapter I Safety Instruction
Warning!
Before installing and using this inverter, please carefully read the following safety instructions.
1.1 Safety instruction
The equipment has high temperature and high voltage, and shall be only installed, operated and
maintained by the qualified and trained professionals. During equipment installation, operation and
maintenance, it is necessary to abide by the local safety codes and relevant operation instructions; or
else, personal injury or equipment damage may occur. The safety precautions mentioned in this Manual
can be only regarded as the supplementation for the local safety codes.
This Company shall not bear any responsibility for the accidents caused by the violation of the general
safety operation requirements or the safety standards for equipment design, production and use.
1.2 General safety protection
1. Do not expose the REKOSER RTI series inverter in the environment including water, fog, snow, dust, etc.,
and do not block or shield ventilating ducts in order to reduce the danger occurrence probability. Do not
install the REKOSER RTI series inverter in a small and narrow unventilated space, or else the power
supply will be overheated.
2. In order to avoid fire and electric shock, please be sure that all cables have good electrical
characteristics and suitable diameter. It is forbidden to use damaged or small-diameter cables.
3. Since the parts inside the power supply may cause electric charge and striking, please do not put
battery, inflammable product or any article with fire prevention requirements around the power supply.
1.3 Battery related operation safety protection
4. In case skins or clothes are contaminated by the acid liquor of the battery, please immediately use
soap and clean water for washing. In case acid liquor is splashed into your eyes, please immediately use
cold water to wash the eyes for at least 20 minutes and then timely go to hospital for treatment.
5. Do not smoke or make open fires around the battery or the engine.
6. Do not place metal tools on the battery, because the generated spark or short circuit may cause an
explosion.
7. When operating a lead-acid storage battery, do not wear a ring, bracelet, necklace, watch and other
metal ornaments, because the current at the short circuit connection of these ornaments and the storage
battery may cause high temperature and accordingly melt metal and cause severe burn injury.
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User Manual for RTI series
Chapter II Overview
2.1 Introduction
RTI sine wave inverter series is especially designed and produced for the enterprises in electrical power
system and post and telecommunication industries according to their actual requirements under the
condition of not only considering the spatial installation size and the automation and networking
requirements for the inverter management in IT age, but also considering the influence of the noise on
the personnel in oces or in machine rooms.
The inverter of this series employs advanced SPWM and CPU control technology to realize precise
control, isolated input and output, output soft start, safety and high eciency, good reliability and strong
impact resistance to inductive load. Not only with small volume, light weight, beautiful appearance,
convenient installation and maintenance, simple operation, low noise, low backward noise and no
pollution, but also with the function of real-time data collection and multi-path remote communication,
the products of this series can provide convenience for many system users to implement network
management and remote control.
Meanwhile, RTI series is not only applicable to the communication industry, but also applicable to other
occasions with high requirements for power supply quality, thus becoming the ideal selection of the
power supply for oce automation.
2.2 Functions and features
●RTI series refers to the intelligent dedicated REKOSER RTI series inverter and employs intelligent
microcomputer CPU control technology and advanced control theory as well as mature and stable
high-frequency inversion mode in order to rapidly respond to the external environment change
and constantly provide high-quality AC output in a real-time manner.
●RTI series employs advanced PWM+SPWM pulse width modulation technology to realize output
soft start, and the output thereof is the pure sine wave with stable frequency and voltage, filtered
noise and low distortion factor.
●Dierent from other false isolation modes, the advanced DC-AC electric isolation technology can
really realize the completely electric isolation of DC and AC in all circuits and accordingly meet the
isolation requirements of all application systems as well as eliminate all possible mutual
interferences.
●This product has startup self-inspection function, strong loading capability and good load
compatibility; the built-in by-pass switch has improved the continuity and reliability of the
REKOSER RTI series inverter.
●This product also has direct startup function by mains and allows the users to provide power
supply to the load through the by-pass mains when there is no DC input; meanwhile, it also allows
to cut o DC under startup status and to automatically switch to the mains by-pass, without
influencing the power supply for the load while facilitating the maintenance replacement of the
storage battery.
●This product also has intelligent unattended operation function, namely: after the output is cut o
due to too high or too low DC voltage, mains failure, etc., the power supply can automatically
recover the output when the DC voltage or the mains returns to normal condition. Therefore, this
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User Manual for RTI series
product is especially suitable for the unattended communication base.
●This product has perfect safety protection functions, such as DC input inverse connection
prevention and DC input buering protection and other comprehensive protection measures for
overvoltage, overload, short circuit, over-temperature and inverter fault.
●Due to the adoption of the advanced backward noise suppression techniques, this product does
not mutually intervene with the communication equipment sharing the DC cabinet. The AC input
terminal employs multiple filtering to eliminate the interference of the utility power grid in order
to meet the requirements of the application system for AC-dominated power supply.
●This product can flexibly set AC-dominated power supply and DC-dominated power supply (power
supply form can be switched through LCD panel or communication background software):
●When there are mains, AC-dominated REKOSER RTI series inverter is under mains output mode; in
case of mains fault, AC REKOSER RTI series inverter automatically switches to inverter output.
●DC-dominated REKOSER RTI series inverter is under inverter output mode during normal
operation, and automatically switches to mains by-pass output during the occurrence of DC input
fault.
●This product also has the function of LED+LCD status display, alarm signal display and alarm
recording, and is provided with 128*64 lattice screen as the perfect humanized man-machine
interface with blue background and white subtitles.
●This product has 5 groups of passive dry contacts respectively for DC input fault, AC input fault,
overload information, by-pass information and output fault.
●This product is also provided with completely independent RS232 and RS485 communication
interfaces, and supports real-time data communication function, and can use the monitoring
software to monitor and control the working condition of the REKOSER RTI series inverter in a
real-time manner.
●This product supports built-in TCP/IP communication to realize remote network monitoring and
management of the REKOSER RTI series inverter. (Optional)
●This product supports built-in SNMP communication to realize the interconnecting function of the
REKOSER RTI series inverter and attain the objective of network monitoring and management.
(Optional)
2.3 Technical characteristics and parameters
2.3.1 Sine Wave series model code
48/230- 8KVA
8K-----Nominal output power (VA)
230----Nominal output AC voltage (V)
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User Manual for RTI series
48-----Nominal input DC voltage (V)
2.3.2 Sine Wave series model list
Table I:
24 Series
48 Series
110 Series
230 Series
1000VA
24/ 230-1KVAR
48/ 230-1KVAR
110/ 230-1KVAR
220/ 230-1KVAR
2000VA
24/ 230-2KVAR
48/ 230-2KVAR
110/ 230-2KVAR
220/ 230-2KVAR
3000VA
24/ 230-3KVAR
48/ 230-3KVAR
110/ 230-3KVAR
220/ 230-3KVAR
4000VA
Not available
48/ 230-4KVAR
110/ 230-4KVAR
220/ 230-4KVAR
5000VA
Not available
48/ 230-5KVAR
110/ 230-5KVAR
220/ 230-5KVAR
6000VA
Not available
48/ 230-6KVAR
110/ 230-6KVAR
220/ 230-6KVAR
8000VA
Not available
48/ 230-8KVAR
110/ 230-8KVAR
220/ 230-8KVAR
10000VA
Not available
48/ 230-10KVAR
110/ 230-10KVAR
220/ 230-10KVAR
2.4 Technical characteristics and parameters
2.4.1 Technical index
Table II:
Technical Index(VA)
1K
2K
3K
4K
5K
6K
8K
10K
DC
inpu
t
Rated input voltage (Vdc)
Refer to Table III
Rated input current (A)
Refer to Table III
Allowable range of input
DC voltage (Vdc)
Refer to Table III
Backward noise current
≤10%
AC
by-pas
s input
Allowable by-pass
voltage (Vac)
270V-170V(±10V)
Rated input current (A)
4.5
9.1
13.6
18.2
22.7
27.3
36.4
45.4
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User Manual for RTI series
By-pass conversion time
(ms)
≤5ms
AC
out
put
Rated capacity (VA)
1K
2K
3K
4K
5K
6K
8K
10K
Rated output power (W)
800
1600
2400
3200
4000
4800
6400
7000
Inverter output voltage
and frequency
230Vac，50HZ
Inverter output current
(A)
3.47
6.96
10.43
13.9
17.4
20.8
27.82
30.43
Output voltage precision
(V)
230±1.5%
Output frequency
precision (Hz)
50±0.1% Or 60±0.1%
Waveform
Pure sine wave
Total harmonic distortion
(THD)
≤3% (linear load)
Dynamic response time
5% (load 0←→100%)
Power factor (PF)
0.8
Overload capacity
100%-120% 60s
121%-150% 10s
Inversion eciency (80%
resistive load)
≥85%
By-pass conversion time
(ms)
≤6ms
Workin
g
enviro
nment
Dielectric strength (input
and output)
1500Vac, 1 minute
Noise (1m)
≤40dB
Operating environment
temperature
-20℃~+50℃
Humidity
0~90%, no moisture condensation
Operating altitude (m)
≤2000
Indicati
on
LCD display
Input and output voltage, frequency, output current, temperature, percentage, etc.
inverter status
Normal mains, normal inversion, battery under-voltage and output overload
Mecha
nical
size
Standard rack
(Depth × Width × Height)
(mm)
Refer to 7.3 Case Structure Chart
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User Manual for RTI series
Protection function
Input under-voltage and overvoltage, output overload and short circuit protections,
etc.
Table III:
24 Series
48 Series
110 Series
230 Series
Rated input
voltage (Vdc)
24V
48V
110V
230V
Allowable
range of input
DC voltage
(Vdc)
Cuto voltage
20V—30V
Cuto voltage
40V--60V
Cuto voltage
90V—135V
Cuto voltage
180V--275V
Startup voltage
22V—28V
Startup voltage
45.5V—57V
Startup voltage
104V—131V
Startup voltage
208V—260V
Rated input
current
(A)
1KVA
42
1KVA
21
1KVA
9
1KVA
4.5
2KVA
83
2KVA
42
2KVA
18
2KVA
9
3KVA
125
3KVA
63
3KVA
27
3KVA
13.5
Not available
4KVA
83
4KVA
36
4KVA
18
Not available
5KVA
104
5KVA
45
5KVA
22.5
Not available
6KVA
125
6KVA
55
6KVA
27
Not available
8KVA
166
8KVA
73
8KVA
36
Not available
10KVA
208
10KVA
91
10KVA
45
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User Manual for RTI series
Chapter III Structure and Principle
3.1 Hardware structure and working principle
Specification: RTI series employs advanced PWM+SPWM high frequency technology and takes CPU as
the master control chip, thus realizing the perfect combination of the advanced intelligent control and
the mature and stable inverter mode.
Functional block diagram
3.2 Operation mode
3.2.1 AC power supply mode
Namely AC inverter working mode: the inverter employs mains for load when there is mains and switches
to inverter working mode when the mains is abnormal.
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User Manual for RTI series
3.2.2 DC power supply mode
Namely DC-dominated inverter working mode: under normal condition, DC-dominated inverter is under
inverter output status all the time; in case of DC fault, it switches to mains by-pass.
3.3 Appearance and indicator light
Appearance
Front panel
Back panel
Indicator light
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User Manual for RTI series
Chapter IV Installation and Debugging
4.1 Installation preparation
RTI series must be installed only by the technical personnel with certain electric theory
knowledge and practical experience.
4.1.1 Tool, instrument and data
Universal meter, tool kit, specification and cable
4.1.2 Installation environment inspection
Environmental requirements
●Working temperature: -20℃~+50℃
●Storage temperature: -40℃~+70℃
●Relative humidity: 0%-95%, no moisture condensation
●Cooling mode: temperature control type air cooling
●Altitude: 1500m, meeting the derating requirement of GB3859.2-93
●Verticality: no vibration, with the vertical gradient not exceeding 5 degrees
●Class of pollution: Class II
The system shall be installed in the cool and dust-free operating environment with sucient ventilation
and relatively low humidity. The recommendable working temperature is 20~25℃and the humidity shall
be controlled at about 50%.
Inflammables, explosives or corrosive gas or liquor shall not be stored in the room.
It is forbidden to be installed in the working environment with metallic conductivity dust.
4.1.3 Connecting cable
Users can optionally select and configure the cable and meanwhile the connector is randomly provided
as the connecting wire. The cable specification is as shown in the following table:
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User Manual for RTI series
Capacity
AC input wire
section area
DC input wire section area
24V
48V
110V
230V
1000VA
1.5mm²
10 mm²
6.0 mm²
4.0 mm²
2.5 mm²
1500VA
2.5mm²
16 mm²
10 mm²
6.0 mm²
2.5 mm²
2000VA
2.5mm²
20 mm²
16 mm²
6.0 mm²
2.5 mm²
3000VA
4.0mm²
50 mm²
16 mm²
10 mm²
4.0 mm²
4000VA
4.0mm²
No
25 mm²
10 mm²
6.0 mm²
5000VA
6.0mm²
No
25 mm²
10 mm²
6.0 mm²
6000VA
6.0mm²
No
36 mm²
16 mm²
6.0 mm²
8000VA
8.0mm²
No
36 mm²
16 mm²
10 mm²
10000VA
10.0mm²
No
40mm²
25 mm²
10 mm²
4.1.4 Unpacking and cargo inspection
The equipment shall be placed in the satisfactory storage environment and the storage period shall
preferably not exceed 3 months.
During equipment installation, it is necessary to deliver the equipment to the installation site and then
remove the external package. At this moment, it is necessary to check whether the equipment and
materials are correct according to the packaging list inside the container and meanwhile properly
preserve various spare parts and accessories for installing, updating and maintaining the equipment in
future.
4.2 Installation
1. Installation
After removing the package, take out the valve bag containing two L-shaped handle frames and handles
from the installation accessories, use M4 screw in the bag to fix the right and left sides of the REKOSER
RTI series inverter and meanwhile lock the screw, as shown in the following figure:
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User Manual for RTI series
2. Placement and fixation
Place the REKOSER RTI series inverter installed with handles at the position suitable for a 19-inch rack
(notice: the REKOSER RTI series inverter shall be provided with a supporting device at the bottom!) and
then fix it.
3. Connecting cable
1) DC input connection
Connect the prepared cable to the DC input terminal at the back part of the REKOSER RTI series inverter
and pay attention to the connection of the positive and negative electrodes.
Hot-line operation shall be forbidden in order to avoid such accidents as short circuit and
striking which may endanger personal safety and equipment safety.
2) AC input and output connection
Terminal strip is adopted for the AC input and output connection of this machine. It is necessary to
connect the cables with connectors according to the silk-screen mark.
Notice: the live line and the null line cannot be inversely connected, and the input and the output cannot
be inversely connected; after wire connection, it is necessary to check whether the wires are firmly and
stably connected, as shown in the following figure:
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User Manual for RTI series
Chapter V Use and Operation
5.1 Power-on and power-o
5.1.1 The first time startup
●Check whether the DC input voltage is consistent with the label at the back of the machine; in case of
any inconsistency, please do not introduce a DC power supply in order not to cause machine damage!
For any unclear part, please contact the supplier or directly contact the manufacturer.
●Check whether the wiring polarity of the DC input is correct; or else, the machine cannot be normally
started.
●Check whether the wiring of AC input and output is correct and confirm that there is no short circuit
phenomenon.
●If there is no error in the above checks, respectively introduce DC power supply and AC power supply.
●Place the startup switch on the machine at NO position in order to send power to start the machine.
●Firstly, all indicator lights are orderly turned on for self-inspection.
●Then, the output relay is closed to output AC power supply to the load.
5.1.2 Daily operation
●Only the startup & shutdown switch on the machine is operated for daily startup.
●For shutdown, it is necessary to first turn o the load and then turn o the inverter switch.
●For long-term nonuse, please cut o the power supply for AC input and output as well as the output
connection in order to ensure safety.
●Please follow the operations for the first time startup to start the machine after long-term nonuse.
5.2 Use operation
5.2.1 Startup
1. Confirm whether DC input and AC output of the power supply are correctly and reliably connected;
2. After the startup/shutdown switch is rightwards pressed, the inverter sends “tick” noise and enters
self-inspection status, thus indicating that the machine is started.
Self-inspection status: before steady output, the REKOSER RTI series inverter checks the external
environment and checks whether the inverter supply power itself is normal; if various status parameters
of the REKOSER RTI series inverter and the mains are normal, the inverter will steadily operate in mains
status or inverter status (AC-dominated inverter is steady in mains output status and DC-dominated
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User Manual for RTI series
inverter is steady in inverter output status). It takes about 5s to complete this process.
5.2.2 Shutdown
After the startup/shutdown switch is leftwards pressed, the inverter LED indicator light and the REKOSER
RTI series inverter are both turned o.
5.2.3 Mute
In case the REKOSER RTI series inverter has a fault in the operation process, the system will send an
audible and visual alarm which can be set through the LCD, namely selecting Turn O (turn-o is
permanent, and there will be no audible alarm for any new fault) in the sound control option.
Operators can directly press the ENT (temporary) button to deactivate and activate (the existence of
alarm is the essential condition) the alarm. For the same alarm, the muted alarm will not be
automatically turned on (if the fault is removed and the same fault appears again, the alarm will be
turned on again); if there is another alarm, no matter whether the last alarm is under mute status or not,
the system will automatically turn on the audible alarm.
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User Manual for RTI series
Chapter VI Operation Status and Display
6.1 Indicator light and button definition
6.2 Indicator light display list
Startup
self-ins
pection
Status
Mode (Green)→On→
Mains (Green)
→On→
Battery (Green) →On→
Load (Green)→On→
Buzzer
One sound every 1s, and triple sounds before mute.
Mode
light
(Green/
Blue)
Status
AC mode
DC mode
Indicator
light
Normally green
Normally blue
Buzzer
No
No
Mains
Light
(Green/
Red)
Status
Normal AC voltage
High AC voltage
Low AC voltage
No AC voltage
Indicator
light
Normally green
Quick flashing
red
Slow flashing red
Normally red
Buzzer
No
One sound every
3s
One sound every 3s
One sound every 3s
Battery
light
(Green/
Red)
Status
Normal DC voltage
High DC voltage
Low DC voltage
No DC voltage
Indicator
light
Normally green
Quick flashing
red
Slow flashing red
Normally red
Buzzer
No
One sound every
1s
One sound every 3s
One sound every 3s
Load
light
(Green/
Red)
Status
Normal
load
Overload 120%
Overload 150%
Overload shutdown
Short circuit shutdown
Inverter
fault
Indicator
light
Normally
green
Slow flashing
green
Quick flashing
green
Slow flashing red
Quick flashing red
Normally
red
Buzzer
No
One sound every
1s
One sound
every 1s
Continuous sound
Continuous sound
Continuous
sound
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User Manual for RTI series
6.3 Specification for LCD display menu
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User Manual for RTI series
Chapter VII Alarm and Monitoring
7.1 Remote control and alarm
7.1.1 Interface definition
The contact capacity of each group of the dry contacts shall not exceed 60 V 0.5A.
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