EA99 Series UPS Manual
EA99 Series UPS Manual
EA99 Series UPS Manual
30~120kVA
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EA99 Series UPS Manual
Section I: EA99 Product System Overview......................................................................................... 4
1.1 Introduction ........................................................................................................................... 4
1.1.1 Separate bypass input ............................................................................................... 5
1.1.2 Static transfer switch ................................................................................................ 5
1.1.3 Battery switch ............................................................................................................ 6
1.1.4 Redundant control power board.............................................................................. 6
1.2 Running mode ....................................................................................................................... 6
1.2.1 Normal mode ................................................................................................................ 7
1.2.2 Battery mode ............................................................................................................. 7
1.2.3 Bypass mode .............................................................................................................. 8
1.2.4 Maintenance mode (manual bypass) ....................................................................... 8
1.2.5 Economic (ECO) mode (only applicable for the single machine system) ............. 9
1.2.6 Parallel redundant mode (system multiplication) ................................................ 10
1.2.7 Hot backup mode .................................................................................................... 10
1.2.8 Frequency converter mode..................................................................................... 11
1.3.1 EA99 Series UPS performance features ................................................................... 11
1.3.2 Product specific parameters ................................................................................... 12
1.3.3 Detailed instruction of function features............................................................... 14
1.3.4 Similar modularization design and fully front maintenance.................................. 29
1.3.5 Options ........................................................................................................................ 31
Section II Installation of Single Machine System............................................................................. 31
2.1 Introduction........................................................................................................................... 31
2.2 Initial test ............................................................................................................................... 32
2.3 Siting..................................................................................................................................... 32
2.3.1 UPS room .................................................................................................................... 32
2.3.2 External battery room................................................................................................... 32
2.3.3 Storage......................................................................................................................... 33
2.4 Position................................................................................................................................... 33
2.4.1 Transportation of cabinet.......................................................................................... 33
2.4.2 Operation space.......................................................................................................... 34
2.4.3 Front operation .......................................................................................................... 34
2.4.4 Final position .............................................................................................................. 34
2.4.5 Anchor installation..................................................................................................... 34
2.4.6 Incoming mode ........................................................................................................... 34
2.5 External protection device.................................................................................................... 35
2.5.1 Rectification and bypass input .................................................................................. 35
2.5.2External battery .......................................................................................................... 35
2.6 Power cable ............................................................................................................................ 35
2.7 Control cable and communication....................................................................................... 38
2.7.1Features of the monitoring panel............................................................................... 38
2.8.1 Interface of the input dry contact ............................................................................. 38
2.8.2 BCB switch interface of the external battery........................................................... 39
2.8.3Input interface of emergency power off .................................................................... 39
2.8.4 Temperature detection interface of the external battery ........................................ 40
2.8.5 Serial port RS232-1 and RS232-2 ............................................................................. 40
2.8.6 SNMP card interface.................................................................................................. 40
Section III: Installation of Battery..................................................................................................... 41
3.1 Introduction......................................................................................................................... 41
3.2 Safety.................................................................................................................................... 41
3.3 Battery cabinet .................................................................................................................... 42
3.3.1 Introduction............................................................................................................. 42
3.3.2 Environmental temperature................................................................................... 42
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EA99 Series UPS Manual
3.3.3 Outline dimension ................................................................................................... 43
3.3.4 Weight ...................................................................................................................... 43
3.3.5 Features of switch..................................................................................................... 43
3.3.6 Temperature pickup of battery .............................................................................. 43
3.3.7 Transportation of battery cupboard...................................................................... 43
3.3.8 Cable incoming........................................................................................................ 44
3.3.9 Structural map of battery cupboard ..................................................................... 44
3.4 Power cable of battery .......................................................................................................... 45
3.4.1 Installation of battery ................................................................................................ 45
3.4.2 Battery connection .................................................................................................. 45
3.5 Battery control .................................................................................................................... 46
Section IV Installation of Parallel System......................................................................................... 46
4.1 UPS single machine of parallel system .............................................................................. 46
4.2 Hot backup system ................................................................................................................ 48
Section V: Installation Diagram......................................................................................................... 49
5.1 External structure ................................................................................................................. 49
5.2 Internal view........................................................................................................................ 50
5.3 Instruction of connection terminal ...................................................................................... 53
Section VI: Operation Procedure ...................................................................................................... 53
Start-up procedure (access to inverted supply mode) .............................................................. 53
6.2 Start-up procedure (access to economic mode)................................................................... 55
6.3 Operational procedure of battery maintenance mode ....................................................... 55
6.4 Operational procedures of maintenance bypass (UPS power off procedure) ................ 56
6.5 Procedures of power off (completely turn off UPS and load).......................................... 56
6.6 Procedures of emergency power off (EPO)....................................................................... 57
6.7Certain UPS reset procedures after fault alarm.................................................................. 57
6.8 Automatic start-up .............................................................................................................. 58
6.9 Language select ................................................................................................................... 58
6.10 Alter the current date and time.......................................................................................... 58
6.11Controlling password ........................................................................................................... 58
Section VII: Operational & Controlling Display Panel ................................................................... 58
7.1Introduction........................................................................................................................... 58
7.1.1Simulation state diagram............................................................................................ 60
7.1.2Sound alarm (buzzer) ................................................................................................. 61
7.1.3Functional operation key ............................................................................................ 61
7.1.4 LCD and menu key ................................................................................................. 61
7.1.5 Detailed menu description ...................................................................................... 63
7.2List of displayed events of liquid crystal panel.................................................................... 66
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EA99 Series UPS Manual
Section I: EA99 Product System Overview
1.1 Introduction
EA99 is a high-performance and fully digital UPS utilizing the double DSP control
technology with the power factor correction function. Its performance indexes reach the
leading level of the industry and the power grade contains 30-120 KVA. EA99 UPS is
connected between the commercial power and the important load to supply the
high-quality power to the load. It adopts the high-frequency double conversion pulse
width modulation(PWM) and fully digital control technology, the output voltage is not
influenced by the change and interference of the input voltage and frequency of the
utility.
As shown in diagram 1, the utility is inputted from CB1, the rectifier converts the
utility to DC and supplies power to the DC/DC bi-directional battery converter (charge
the battery at any time) and the inverter. The inverter converts the DC power to AC
power to supply the load. When the utility is interrupted, the battery supplies the back-up
power to the load through the bi-directional battery converter and inverter. When the
inverter is in fault or overload time is up, the external bypass supplies power to the load
through the input switch CB2 and static bypass. In addition, for the maintenance and
repair of the UPS, UPS will supply the power to the load through the internal
maintenance bypass. When the UPS is in normal mode, all switches are closed except the
maintenance bypass switch.
Note: ① and ② are the external battery and circuit breaker
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EA99 Series UPS Manual
Diagram 1, frame of the single machine system
1.1.1 Separate bypass input
Diagram 1 describes the single machine frame of the EA99 UPS with the “Separate
Bypass Power Supply” (bypass is inputted through independent utility). In the separate
bypass allocation, static bypass and repair bypass adopt a single bypass power supply
together and connect with the special bypass power supply through a single power switch.
If bypass power supply is not available, connect the bypass and the rectifier input power
terminal together.
1.1.2 Static transfer switch
The “Static Switch” in the diagram 1 contains the electronic control switching circuit
and it can connect the load to the inverter output or to the bypass power supply through
the static bypass.
Inverter supplies the power to the load under the normal condition; but the load is
automatically switched to the static bypass power supply under the conditions of
overloading or the inverter fault.
Under the normal operation, inverter output and the static bypass power supply
should be synchronous to realize the uninterrupted transfer of the inverter and the static
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EA99 Series UPS Manual
bypass power supply. The synchronous of the inverter output and the static bypass power
supply can be realized through the inverter control circuit. When the frequency of the
static bypass power supply is within the allowed synchronizing range, the inverter control
circuit always makes the inverter output frequency track the frequency of the static
bypass power supply.
UPS also supports the manual control maintenance bypass. When shut the UPS and
implement the daily maintenance and repair, UPS can supply the power to the important
load through maintenance bypass.
1.1.3 Battery switch
The external battery is connected to the UPS through the switch inside the battery
cabinet. If the there is no battery cabinet, install the battery switch near to the assembled
battery. The battery switch can be closed manually and it owns an under-voltage trip coil.
When the fault is detected, UPS control circuit will trigger the coil and the switch will
trip. In addition, the switch also supports the magnetism tripping function to realize the
overloading protection.
1.1.4 Redundant control power board
UPS is equipped with two control power boards to mutual backup. The two power
boards can obtain the input power from the AC utility input and DC bus. When one of the
power supplies or one control power board is failed, UPS LCD panel will display the
fault message and the UPS system is still in normal operation. This function supports the
higher reliability to the system.
1.2
Running mode
EA99 UPS is online and double conversion UPS system, the running modes are as
follows:
z
Normal mode
z
Battery mode
z
Bypass mode
z
Maintenance mode
z
Economic (ECO) mode
z
Parallel redundant mode
z
Hot backup mode
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EA99 Series UPS Manual
z
Frequency converter mode
1.2.1 Normal mode
Diagram 2 Current diagram of the inversion mode
The utility supplies the AC power supply to the UPS rectifier; the rectifier supplies
the DC power supply to the inverter; and the inverter supplies the uninterrupted AC
power to the load. At the same time, the rectifier supplies the floating charge voltage or
boost charge voltage to the battery through the charger.
1.2.2 Battery mode
Diagram 3 Current diagram of the battery mode
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EA99 Series UPS Manual
Battery mode is such a running mode that the battery supplies the back-up power to
the load through the inverter. When the utility is off, the system automatically switches to
the battery mode and the load is not interrupted. When the utility recovers, the system
automatically switches back to the normal mode and the load power supply is not
interrupted without any manual intervention.
1.2.3 Bypass mode
Diagram 4 Current diagram of the bypass mode
Under the normal mode, if the inverter is out of order, overloading or closed manually,
the static transfer switch will convert the load to the bypass power supply side from the
inverter side and the load power supply is not interrupted. If the inverter and the bypass is
asynchronous at that time and the static switch converts the load to the bypass power
supply side from the inverter side, but the load power supply will be interrupted for a
short time. The function can avoid the general circulation resulted from the parallel of the
asynchronous power supply. The interruption interval of the load power supply can be set,
generally it is smaller than 3/4 cycle. For example, the frequency is 50Hz and the
interruption interval is smaller than 15ms; the frequency is 60Hz and the interruption
interval is smaller than 12.5ms.
1.2.4 Maintenance mode (manual bypass)
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EA99 Series UPS Manual
Diagram 5 Current diagram of the repair bypass mode
If the UPS needs maintenance or repair, convert the load to the maintenance bypass
through the manual bypass switch and the load power supply is not interrupted. The
manual bypass switch is equipped inside the UPS and the capacity meets the requirement
of the single machine total load capacity.
1.2.5 Economic (ECO) mode (only applicable for the single machine system)
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EA99 Series UPS Manual
Diagram 6 Current diagram of the ECO mode
If the economic mode is applied, the double transformation is forbade under most of
the conditions to realize the energy-saving. When run in the form of the economic mode,
bypass supplies the power to the load. When the bypass power supply is within the range
of normal frequency and voltage, the load power is supplied by the bypass; when the
bypass power supply exceeds the range, the system will convert to the inverter output and
the load power supply will be interrupted. The interruption interval is smaller than 3/4
cycle. For example, the frequency is 50Hz and the interruption interval is smaller than
15ms; the frequency is 60Hz and the interruption interval is smaller than 12.5ms.
1.2.6 Parallel redundant mode (system multiplication)
In order to improve the system capacity and /or reliability, set several UPS single
machines as the direct parallel and the parallel operation control logic inside each UPS
single machine ensure that all single machines automatically share the load evenly. The
parallel operation system can be formed by 6 single machines at most.
1.2.7 Hot backup mode
It is a 1+1 redundant mode to improve the availability and reliability of the system.
Two UPS are connected in the form of the hot backup mode: UPS1 connects with the
important load and UPS 2 connects with the UPS1 bypass. Other system input connects
with the users’ power distribution. The output of UPS1 and UPS2 is synchronous to
ensure that the load power supply is not interrupted when the load is switching between
UPS1 and UPS2. The mode not only ensures that the UPS meets the power supply
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EA99 Series UPS Manual
requirement of any special load, but also supports the requirement of bypass
constant-voltage and constant-frequency. In addition, the UPS1 can be set as the alternate
run of the normal mode and bypass mode to realize that the two UPS supply the power to
the load alternately. The alternate run interval can be set by the user and the setting range
is 1~4,320 hours (180 days).
1.2.8 Frequency converter mode
The UPS can be set as the frequency converter mode to supply 50Hz or 60Hz stable
output frequency. The input frequency range is 40Hz~70Hz. Under this mode, the static
bypass is non-effective and the battery selection can be determined according to whether
require the battery mode to run.
1.3 EA99 Series product features
1.3.1 EA99 Series UPS performance features
z
Three phase input and output to support the power system of 380/400/415V,
50/60Hz.
z
Pure online double conversion to support the optimal power supply quality
z
Applicable for all kinds of load and possess high overload capacity
z
Double DSP fully digital control to realize the full digitalization of the IGBT
rectification, inversion, charge and discharge converter.
z
For the latest IGBT rectification technology, the input power factor is up to 0.99;
features low harmonic current, green environmental protection, high efficiency and
energy-saving.
z
Digital circulation technology with the small circulation and the parallel reliability is
high
z
Super wide input voltage anti-interference range to adjust to the rugged power
system environment
z
Intellectualized battery management to prolong the service life of the battery
z
Self-diagnostic function; abundant and perfect fault protection function; possess
10000 historic records to be inquired
z
Fully positive maintenance and install the equipment near to the wall to save the
equipment room space
z
Cooling fan redundant design of the power module to improve the system reliability.
z
Similar modular design and the site maintenance is convenient and rapid
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EA99 Series UPS Manual
z
Ultralong mean time between failure (MTBF) (>200,000h)
z
Short mean time to repair (MTTR)(<0.5 h﹚
z
Huge LCD interface display and friendly human-machine interface
z
Two routing modes of top incoming and bottom incoming
z
Whether equip the output transformer can be selected
z
Options: Main path reverse protection, bypass reverse protection, battery leakage
protection, battery cold start and lightning protection components
1.3.2 Product specific parameters
Figure 1: Performance parameters
Capacity
30,40,50,60,80,90,100,120kVA
Input voltage
380V/400V/415 (line voltage)
Input mode
Three-phase four-wire
Power factor
>0.99
Total Harmonic Distortion,
<3%
Harmonic current
Main input
Voltage range
132/228V~277/480V
176/304V~~277/480V, full load operation
132/228V~176/304, the load capacity
linear derates between 100%~70%
Frequency range
40~70HZ
Input voltage
380V/400V/415 (line voltage)
Bypass
Input voltage range
+20%~-50%
input
Input mode
Three-phase four-wire
Frequency range
40~70HZ (can be set)
Steady state voltage precision
±0.5%
Output
(balanced load)
Dynamic voltage transient
Voltage
distortion
±2%(0~100% load variation)
THDU THD<0.5% (phase voltage)
(linear load)
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EA99 Series UPS Manual
Voltage
distortion
THDU THD<3% (phase voltage)
(non-linear load)
Power factor
0.8 (lagging)
Frequency tracking range
50Hz±3Hz
Frequency precision (battery ±0.01%
inversion)
Three-phase separation
120±0.5°
Frequency tracking rate
Adjustable between 0.5Hz/s and 5Hz/s
Inverter overload capacity
105% load, run for a long time
110% load, convert to bypass output after
1hour
125% load, convert to bypass output after
10min
150% load, convert to bypass output after
1min
>150% load, convert to bypass output
after 200ms
Load between 105%~150%, close the
inverter according to the overload curve
Bypass overload capacity
150% load, run for a long time
150%<load< 180%, insist on 1 min
load>1000%, insist on 100ms
Normal switching time
System
Overall working efficiency
0
the maximum is 93%
ECO mode is 98%
Display
LCD+LED
EMI
IEC62040-2
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EA99 Series UPS Manual
EMS
IEC61000-4-2(ESD)
IEC61000-4-3(RS)
IEC6100-4-4(EFT)
IEC6100-4-5(Surge)
Noise (1m)
<58dB
Insulation resistance
>2M(500VDC)
Insulation strength
(Input and output ground) 2820Vdc;
leakage current is lower than 3.5mA,
1min without flashover
Surge protection
Meet
the
Ⅳ installation
location
requirement of IEC60664-1, that is, the
ability
of
bearing
1.2/50us+8/20us
combination wave is not lower than
6KV/3KA
Protection degree
Battery number
IP20
38~42 cells of 12V battery (standard 40
cells)
Installation
Connection mode
Top and bottom incoming and outgoing
1.3.3 Detailed instruction of function features
1.3.3.1
Rectifier
(1)
、 Power factor correction
Rectifier possesses the power factor correction function. Under the condition of
output full load, the input power factor is larger than 0.99 and the input current THD is
smaller than 3%.
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EA99 Series UPS Manual
Diagram 7: Input voltage and current waveform
Figure 2: Input THDI and PFC
60kVA input THDi and PF with 380V rating voltage
100% linear
100% nonlinear
1.690
2.728
THDi_A (%)
1.472
2.082
THDi_B (%)
1.814
2.244
THDi_C (%)
0.9999
0.9999
PF_A
0.9999
0.9999
PF_B
0.9999
0.9999
PF_C
(2) DC busbar soft start-up
Rectifier can realize the soft start-up of the direct current busbar voltage to ensure
that no impact current to the busbar capacitance.
(3)Protection and alarm of rectifier
Main input abnormal
If any phase voltage of input is lower than 132V or higher than 277V, the rectifier
will be closed, UPS will switch to the battery mode and the LCD will display the alarm
messages.
Input frequency abnormal
If the input frequency exceeds the range of 40~70Hz, the alarm single of the input
frequency abnormity will be reported, the rectifier will be closed, UPS will switch to the
battery mode and the LCD will display the alarm messages.
Phase sequence reverse protection function of the main input
If the input phase sequence reverse is detected before the starting of the rectifier soft
start, the rectifier will not start and the LCD will display the alarm messages.
DC busbar low voltage and over-voltage protection
Software protection point: When the voltage of the positive busbar or negative
busbar is lower than 340V, UPS will switch to the battery mode. If the voltage of the
positive busbar or negative busbar is lower than 300V or higher than 440V, the rectifier
will be closed.
Hardware protection point: When the voltage of the positive busbar or negative
busbar is higher than 460V, the rectifier, inverter and battery converter will be closed. If
the bypass is within the protection range, the load will switch to the bypass power supply.
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EA99 Series UPS Manual
The LCD will display the alarm messages.
Pulse by pulse current limitation
If the rectifier current is larger than 3 times of the peak value of the rated input
current, the rectifier will undergo wave chasing and current limiting.
Heatsink over- temperature protection
Each IGBT temperature is monitored. If the IGBT base plate temperature is higher
than 90±5℃, the rectifier will be closed and the LCD will display the alarm messages.
Over- temperature protection of the input inductance
If the input inductance temperature is higher than 160 ±5℃, the rectifier will be
closed and the UPS will switch to the bypass mode. The LCD will display the alarm
messages.
Soft start fault
When the soft start finishes and the voltage of the positive busbar or negative busbar
is still lower than 150V, soft start fault alarm will be reported.
Input over current protection
If the input current of the rectifier is larger than 4~6 times of the IMAX current limit
(effective value), the rectifier will switch to the battery mode to supply the power. The
LCD will display the alarm messages.
1.3.3.2
Battery converter
(1) Charger
When the rectifier is running, the battery converter intelligently charges to the battery
under the normal commercial power.
The conversion of the constant-current charge, constant voltage charge and float
charge can be realized automatically and smoothly.
The battery type includes the valve-regulated lead acid battery, nickel-cadmium
battery and wet battery.
(2) Discharger
When the rectifier is closed or under the condition of the input over current, the
battery converter will supply the power to inverter.
(3) Protection and alarm
Battery over-voltage protection
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EA99 Series UPS Manual
Software protection: If the battery voltage is higher than N*14.5V, the battery
converter will be closed.
Hardware protection: If the battery voltage is higher than N*15.0V, the battery
converter will be closed.
N: Assembled battery number, 12V for each assembly.
Battery discharge interruption (EOD) protection
If the battery voltage is lower than EOD shutdown point, the battery converter will
be closed. The EOD shutdown point is the single battery's voltage.
Wave chasing and current limiting protection of battery discharge
If the battery converter current is higher than 2~2.5 times of the rated discharge
current, the battery converter will undergo wave chasing and current limiting.
Battery capacity and backup time alarm
The panel will always display the battery capacity and backup time and report the
alarm before EOD.
Inductance over-temperature protection of the battery converter
If the inductance temperature of the battery converter is higher than 160 ±5℃, the
battery converter will be closed.
Battery access reverse alarm
If the positive and negative poles of the battery are accessed reversely, the alarm will
be reported and the battery converter will be closed. The LCD will display the alarm
message.
Short circuit protection of IGBT bridge arm of the battery converter
If the IGBT bridge arm of battery converter is shorted(IGBT over current), the battery
converter will be closed immediately.
Charger fault alarm
Under the charging mode, if the output voltage of the battery converter is not
accordance with the set value and the difference value which exceeds 10% of the set
voltage reaches to 5 min, the battery charger will be closed and the panel will display the
alarm of the “Charger Fault”.
1.3.3.3
Balancer circuit
(1) Function
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EA99 Series UPS Manual
The balanced current can generate the direct current to compensate the voltage
imbalance between the positive and negative busbar. The power of the balanced circuit
can reach to more than 20% of the system rated power.
(2) Protection and alarm
Balancer circuit over current
If the balanced circuit appears the phenomenon of the direct current IGBT bridge
arm, the balanced circuit will be closed immediately.
Voltage imbalance of the DC busbar
If the voltage difference between the positive and negative busbar exceeds 70V, the
alarm of “Balancer Circuit Fault” will be reported.
(3) Pulse by pulse current limitation protection of balancer current
If the balancer current is higher than 2~2.5 times of the rated balancer current, the
balancer current will be protected pulse by pulse.
(4) Over-temperature protection of the balancer circuit
The balancer circuit IGBT temperature is monitored. If the IGBT base plate
temperature is higher than 90 degree, the rectifier will be closed.
1.3.3.4
Inverter and bypass
(1) The inverter possesses super overload capacity:
105% load, run for long time
110% load, transfer to the bypass output after 1 hour;
125% load, transfer to the bypass output after 10 min;
150% load, transfer to the bypass output after 1 min;
Load >150%, transfer to the bypass output after 200ms
Load is between 105%~150%, the inverter will be closed according to the overload
curve.
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EA99 Series UPS Manual
Diagram 8: Overload curve of the inverter
Stronger bypass overload capacity:
150% load, run for a long time,
150 %< load< 180%, insist on 1 min
Load >1000%, insist on 100ms
(2) The inverter adopts the advanced modern digital control mode and possesses all
kinds of the load capacity to minimize the output voltage distortion.
图 9:逆变器 PF 矢量图
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EA99 Series UPS Manual
Diagram 10: Voltage and current waveform of the inverter with the resistance load
and rectification load
(3) Bypass setpoint
A. Transfer range
The definition of the transfer range is to realize the determination of uninterrupted
and interrupted switch of the inversion and bypass which include the voltage amplitude
range and frequency range. When the bypass voltage amplitude or frequency exceeds the
range, the bypass will be considered to exceed the transfer range.
The voltage amplitude range is fixed in the -20%, +15% deviation range of the rated
voltage. The frequency range sees the following definition.
B. Bypass tracking range
When the bypass is within the tracking range, the inverter is in the synchronous state
with the bypass. It includes the voltage amplitude tracking range and frequency tracking
range. When the bypass voltage amplitude or frequency exceeds the tracking range, the
bypass exceeds the tracking range.
User can set the bypass tracking range like the following protection range. The
frequency tracking range can be continuously set from ±0.5Hz to ±5Hz of the rated
frequency and the default value is ±3Hz.
(4) Bypass protection range
Protection range means the bypass is in the available mode and when the bypass is in
this state, the bypass will not supply power at any time. It includes the amplitude
protection range and frequency protection range. When the bypass voltage amplitude or
the frequency exceeds the protection range, the bypass exceeds the protection range.
The bypass protection range included an upper limit and a lower limit. The upper
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EA99 Series UPS Manual
limit is +10%, +15% and +20% and the default value is +15%. The lower limit is -10%,
-20%, -30% and -40% and the default value is -20%. The frequency protection range is
±10% and ±20% and the default value is ±10%.
(5) Function
A. On/off control of the inverter
The inverter can be started through manual operation of user, using keyboard to
eliminate the fault or automatic startup when the commercial power recovers. Inverter
can be closed through manual operation of user or automatic close when the system is out
of order. Some serious fault will close the inverter permanently till the system
disconnects, such as, the static switch fault.
B. Output transfer logic
The transfer logic of the system automatically chooses the mode for each switch. The
transfer logic determines the transfer mode combining the bypass state, inverter state and
fault information. If the inverter is in the synchronous state with the bypass, the phase
difference between the inverter and bypass is smaller than 5 degrees.
C.Economic mode (ECO)
The economic run mode is only effective to the single machine. Under the mode, the
load is supplied the power from the bypass and the inverter is in the hot backup state. It
will realize the higher system efficiency. The efficiency of the UPS single machine is
higher than 97~98% under this mode.
D. Parallel running
The maximum parallel number of this series UPS includes six machines. The flexible
and reliable operation logic ensures the high reliability and load stability of the parallel
system. The parallel logic can coordinate the operation of all inverters in the parallel
system.
(6) Protection and alarm
Fault protection of the bypass thyristor
If a bypass static switch has a short circuit and the inverter is in the running state, the
inverter will be closed immediately and the LCD will display the alarm. UPS will switch
to the bypass power supply permanently till the system disconnects.
Fault protection of the inverted thyristor
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EA99 Series UPS Manual
If the load is supplied power by the bypass and the system detects that the inverter
static switch has a short circuit, the switch from the bypass to the inversion will be
forbade and the alarm will report it till the system disconnects.
Phase sequence reverse protection of the bypass
If the bypass phase sequence is reverse, the system will consider that the bypass is in
the over protection state and the load cannot be supplied power by the bypass at any time.
The fault alarm always exists till the system disconnects.
Over-temperature protection of the inverter heatsink
Each IGBT is monitored and if the inverter IGBT base plate temperature exceeds
90±5℃, the inverter will be closed and the load switches to the bypass power supply.
After the IGBT temperature drops, the system will automatically transfer to the main
power supply. The LCD will display the alarm message.
Over-temperature fault of the output inductance
If the output inductance temperature exceeds 160±5℃, the inverter will be closed
and the load will transfer to bypass power supply. After the inductance temperature drops,
the system will automatically trsnsfer to the main power supply. The LCD will display
the alarm message.
Inverter fault protection
After the inverter starts for some time and if the inverter output voltage still exceeds
the CBEMA curve, it is considered that the inverter fault appears, the inverter will be
closed and the LCD will display the alarm message. The UPS will switch to the bypass
power supply and return to the main path power supply after using keyboard to eliminate
the fault.
Current pulse by pulse protection of IGBT bridge arm of the inverter
If a phase of the inverter IGBT bridge arm is shorted(IGBT over current), the
inverter will be closed immediately and the LCD will display the alarm message.
Error in operation
When the inverter is running and the repair bypass is closed, the inverter will be
closed immediately and the UPS will switch to the bypass power supply. The alarm will
report the error in operation of the user.
When the repair bypass is closed, the inverter will not respond to the manual startup
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EA99 Series UPS Manual
order.
If the system connects with the power and there is no output voltage after 5 minutes,
the system will determine the error in operation of the user and automatically close the
rectifier.
Over-voltage or low-voltage fault of the DC busbar
If any busbar voltage is higher than 470V or lower than 330V and persists for some
time, the inverter will be closed and the UPS will switch to the bypass power supply.
Overload transfer of the inverter
Under the overloading condition of the inverter, the UPS will transfer to the bypass
power supply from the inversion power supply after the specified duration. After
transfering, the inverter is in the hot backup state. The system will transfer to the normal
mode automatically after the overload disappears. The transfer is limited in five times
every hour and the LCD will display the alarm message.
Current pulse by pulse limitation of the inverter
When the inverter current is larger than 2~3 times of the peak value of the rated
output current, the inverter current will be protected pulse by pulse. When the output is
short circuited, the protection will be triggered.
Fan fault detection
The fault of each fan of the UPS can be detected. If a fan is out of order (coil open),
then the fan fault will be reported. According to the number of the fault alarm red light
displayed in the veneer, check in the corresponding diagram 27 in the appendix and the
fan fault location can be confirmed.
Asynchrony of the inverter
If the inverter cannot be synchronous with the bypass, the alarm message will be
reported.
Not current-sharing of the parallel system
If the non-equalized current degree of a single machine in the parallel system
exceeds 30%, the alarm message will be reported.
1.3.3.5
Auxiliary power supply
The auxiliary power supply adopts 1+1 redundant mode. Each auxiliary power
supply can supply power to all control circuit independently. When one auxiliary power
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EA99 Series UPS Manual
supply is out of order, another auxiliary power supply will continue to supply power. UPS
will run normally and the LCD will display the alarm message.
1.3.3.6
Monitoring
(1) LCD display
Diagram 11: LCD panel
The following parameters should be displayed in the LCD screen. All displayed electrical
quantity should be refreshed for one time every five seconds. The difference between the
displayed value and the actual value should be lower than 2%.
z
Main input
Three-phase main input phase voltage
Three-phase main input current
Three-phase main input frequency
Three-phase input power factor
z
Bypass input
Three-phase bypass input phase voltage
Three-phase bypass input current
Bypass input frequency
z
UPS output
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EA99 Series UPS Manual
Three-phase output phase voltage
Three-phase output current
Three-phase power factor
Three-phase output frequency
z
Load information
Three-phase load percentage
Three-phase output active power, apparent power and reactive power
Load power factor
z
Battery
Battery voltage
Battery current
Forecasting of the battery backup time
Battery temperature
Battery capacity
z
Parallel load
Three-phase total apparent power
Three-phase total active power
Three-phase total reactive power
z
Record of the historical event
When the fault appears, the record of the historical event should be updated immediately.
10000 historical events can be recorded at most.
z
Menu language
Two languages:
z
Chinese and English
Setting information
Date format
Date and time
Address
Contact
Com1 baud rate
Com2 baud rate
Com3 baud rate
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EA99 Series UPS Manual
Contact telephone number
z
Control interface
Start the self-checking of the battery maintenance
Start the self-checking of the system
Stop testing
(2) LED display
The power flow direction of the system is displayed by five bicolor LED.
z
Rectifier/charger
z
battery
z
Bypass
z
Inverter
z
Load
The green of the LED means the corresponding circuit works normally and the red of
the LED means the corresponding circuit works abnormally. The extinguishing of the
LED means the corresponding circuit is closed and the twinkling of the LED means the
corresponding circuit is in the standby mode. The red LED is used for the fault alarm.
(3) Key
There are nine keys in the panel which include five menu keys, inverter start-up key,
inverter close key, urgent-off key, fault silencing key and fault clearing key.
The four menu keys can be used for choosing the menu screen displayed by the
LCD.
Inverter start-up key is used for starting the inverter.
Inverter close key is used for closing the inverter.
Emergency power off key is used for the rapid shutdown in the urgent situation. The
shutdown includes closing the rectifier, inverter, bypass and the battery converter.
Fault clearing key is used for clearing the fault lock mode.
Silencing key is used for closing the alarm sound of the buzzer.
(4) External interface
Support the abundant input and output signal of the dry contact:
It includes the access signal of the generator, UPS fault alarm output signal, on-off state
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EA99 Series UPS Manual
signal of the external battery and on-off drive signal of the external battery.
Measure module can monitor the environmental temperature and battery temperature
together.
A. Signal interface connects with the battery cabinet
Battery temperature interface can connect the temperature pickup of the battery (option)
with the UPS internal control unit. The temperature of the battery cabinet can be got
through this interface and displayed in the LCD and the temperature compensation can be
implemented. The difference of the battery temperature should be smaller than ±3℃.
B. RS-232 signal
Equip the RS-232 COM1 and COM2 to use for the local communication.
C. Smart card
Modbus, SNMP and other pending cards
Each EA99 UPS possesses the expand communication interface and communication
interface card to connect with each kind of network. It can realize the computer
centralized control of the UPS and the monitor of the UPS running state.
*
Compositive SNMP interface
The circuit board is installed inside the UPS host to directly connect the UPS with all
Ethernets through the TCP/IP agreement. Then, each computer in the network can
manage the UPS through the network.
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EA99 Series UPS Manual
Diagram 12: Remote monitoring interface
1.3.3.7
Battery management
UPS possesses the intelligentized battery management function and supports the
valve regulated lead acid battery, nickel-cadmium battery and wet battery.
(1) Basic function
Constant current average charging
The charging current can be set in the upper limit value of the charging power.
Constant voltage average charging
Set the charging voltage according to the battery type.
For the valve regulated lead acid battery, the maximum charging voltage is smaller
than 2.4V.
Float charge
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EA99 Series UPS Manual
Float charging voltage value can be set according to the battery type.
For the valve regulated lead acid battery, the float charging voltage is between 2.2V
and 2.3V.
Float charge temperature compensation (optional)
The temperature compensation coefficient can be set according to the battery type.
Interruption protection of the battery discharge
If the battery discharge voltage is lower than the protection point, the battery
converter will be closed.
(2) Advanced function
Battery self-maintenance
Select the battery self-maintenance order through the panel display and the key and
the system will automatically switch to the battery mode to test the battery discharge, and
then automatically switch back to the main path mode.
Battery capacity forecasting
For the valve regulated lead acid battery, if the battery has been completely
discharged and the battery capacity curve will be recorded. If the battery has never been
completely discharged, start the battery capacity forecasting through the manual set to
discharge the battery to the EOD point. If the curve is not gained through discharging,
then default the typical curve of the valve regulated lead acid battery.
After the battery starts to discharge, the battery surplus capacity should be displayed. The
nickel-cadmium battery and the wet battery adopt the typical capacity curve.
Backup time forecasting
Implement backup time forecasting according to the current load. Under 25℃
environmental temperature, the forecasting difference of the new valve regulated lead
acid battery through studying is smaller than 10%.
Short backup time alarm
During the time before the interruption of the battery discharge, low forecasting
alarm of the battery voltage should be reported.
1.3.4 Similar modularization design and fully front maintenance
The structure design considers the operability of the on-site maintenance in detail
and adopts the advanced front maintenance design idea to realize the similar
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EA99 Series UPS Manual
modularization design of each function block in the UPS according to the function. The
installation and maintenance is very convenient.
Diagram 13: Material object photo of the internal door
Diagram 14: Internal similar module design
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EA99 Series UPS Manual
1.3.5 Options
(1)
An internal main and bypass backfeed protection device can be installed as an
option.
(2)
Battery cold start option
Support the function of direct battery start under the condition of without the input.
(3) Battery leakage protection option
Detect and eliminate the battery earthing fault to ensure the reliable running of the system.
The monitoring leakage current range: 30~3000mA.
(4) Lightning protection option
Section II Installation of Single Machine System
2.1 Introduction
This section introduces the necessary UPS requirements of the UPS siting and
routing.
Because each site possesses its particularity, this section does not introduce the
detailed installation steps but support the instructional general installation steps and
methods to the installation personnel. The installation personnel should handle according
to the specific situation of the site.
Notes:
z
Connect the UPS with the power after the agreement of the commissioning engineer.
z
The UPS installation should be implemented by the qualified engineer according to
the description of this section. All other equipment are not referred in this manual
will be accompanied by its detailed mechanical and electrical installation data when
shipping.
z
The standard EAST EA99 UPS system can connect with the three-phase four-wire
(earthing) system TN,TT and IT alternating current power distribution network and
support the transformer optional parts of transferring three-wire to four-wire. If it
used for the IT alternating current power distribution network, a four-grade circuit
breaker should be equipped to the input referring to the relevant IT system standard.
z
Be careful to the installation of the battery. When connect the battery, the voltage of
the battery terminal will exceed 400Vdc which possess mortal danger. Please wear
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EA99 Series UPS Manual
the eyes protecting cap to avoid the damage of the eyes from the accidental electric
arc. Take off the ring, watch and other metal adornment. Use the tool with the
insulated handle and wear the rubber glove. If the electrolyte of the battery leaks or
the battery is damaged, change the battery and put it in vessel with the sulphuric acid
resistance. Handle it according to the local regulation. If the skin touches the
electrolyte, wash with water immediately.
2.2 Initial test
Implement the following inspection before installing the UPS:
1.Visual inspect whether the transportation damage exists in the UPS and the internal
and external of the battery. If it is damaged, report to the carrier immediately.
2.Check up the product label and confirm the correctness of the equipment. The
equipment label is fixed behind the door of the equipment and the UPS model,
capacity and main parameters are marked in the label.
2.3 Siting
2.3.1 UPS room
EA99 series UPS supports the forced cooling through the internal fan. The cold blast
enters the UPS internal from the front and bottom air grid of the UPS cabinet. The hot
blast is exhausted from the top air grid of the UPS. Please do not block the ventilation
hole (air grid). If necessary, install the indoor exhaust fan to avoid the increase of the
room temperature or choose the precision air-conditioning of the machine room.
Note: UPS is only applicable for installing in the concrete or other noninflammable
installation surface.
2.3.2 External battery room
The environmental temperature of the battery should be kept constant. The
environmental temperature is the main factor of influencing the battery capacity and the
service life. Standard working temperature of the battery is 20℃~25℃. Run in the
environmental temperature which is higher than the range will shorten the service life of
the battery and run in the environmental temperature which is lower than the range will
decrease the battery capacity. Usually, the allowed environmental temperature by the
battery is between 15℃~25℃. Keep the battery far away from the heat source and
ventilation opening. Install the battery switch near to the battery and ensure the shortest
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EA99 Series UPS Manual
routing distance between the battery and the UPS. Support the battery switch control
plate and use together with the battery switch. The control plate should be installed near
to the battery switch and connected with the UPS control system.
2.3.3 Storage
If do not install the UPS immediately, store it indoor to avoid the over-wetting or
over-temperature environment.
2.4 Position
Four casters are installed in the bottom of the UPS cabinet to convenient to the
position and short transportation of the equipment. UPS also supports the ground screw to
prevent the equipment from slipping after the final position.
The position selection of the UPS should ensure:
z
Convenient connection;
z
Enough operation space;
z
Good ventilation to meet the radiating requirement;
z
Without the aggressive gas in the surround;
z
Without over-wetting and heat source
z
Non-dirty environment
z
Meet the fire-fighting requirement;
z
The optimal working environmental temperature is +20℃ to +20℃, that is, the
temperature range of the battery’s maximum efficiency.
The equipment is the steel frame structure surrounded by the demountable panel and
its top and lateral panels are fixed with the screw. After opening the UPS door, the power
supply terminal, auxiliary terminal board and power supply operation switch can be
touched. Front door of the UPS is designed with the operation control panel to support
the display of the basic running state and alarm message. The air inlet is installed in the
front and bottom of the UPS cabinet and the air outlet is in the top of the UPS cabinet.
2.4.1 Transportation of cabinet
The hoisting equipment used for transporting the UPS cabinet should possess the
enough hoisting capacity. The caster is installed in the UPS and prevent it from slipping
when open the bolt from the carrying tray. Ensure the enough manpower and hoisting
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EA99 Series UPS Manual
equipment to remove the carrying tray.
Ensure that the weight of the UPS is within the hoisting capacity range of the
hoisting equipment. The weight of the UPS sees figure 17. Adopt the fork-lift truck or
other similar hoisting equipment to transport the UPS and short distance transportation
adopts its casters.
Note: Since the battery is installed inside the battery cupboard, be careful to the
transportation. The distance of this transportation should be controlled in shortest.
2.4.2 Operation space
Since there is no air grid in the side and back of the EA99 series UPS, the special
space requirement is not required to its side and back.
In order to fix the power supply terminal inside the UPS conveniently in the daily
running, keep enough space in the front of the UPS except meeting the local regulation.
After opening the UPS door completely, people should pass through freely. Keep 700
mm space between the top of the UPS and the ceiling to ensure the smooth exhaust in the
top of the UPS.
2.4.3 Front operation
Because of the device layout of the UPS, the maintenance, diagnosis and repair of
the UPS can be implemented in the front completely to decrease the space requirement of
the side and back.
2.4.4 Final position
Four casters are installed in the bottom of the UPS cabinet to convenient to the
moving and position of the equipment. After the final position of the UPS, ensure that
other ground screws have been set to fix the UPS stably.
2.4.5 Anchor installation
The installation diagram in the section V marks the size and position of the anchor
installation holes in the UPS base and the equipment can be fixed in the ground utilizing
the holes. If install the UPS in the raised flooring, design a proper support frame to bear
the weight of the UPS.
2.4.6 Incoming mode
EA99 series UPS and the battery cupboard can adopt two incoming modes of top and
bottom incoming.
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EA99 Series UPS Manual
If adopt the bottom incoming, uncover the rubber grommet in the bottom of the
equipment when connect and the incoming hole can be watched.
If adopt the top incoming, dismantle the shield sheet in the left of the cabinet top and
the top incoming line channel can be watched.
2.5 External protection device
Install the circuit breaker and other protection devices in the alternating current
power input location of the external UPS system. This section supports the general
guidance to the qualified installation engineer. The qualified installation engineer should
learn about the local regulated connection relevant knowledge of the installation
equipment.
2.5.1 Rectification and bypass input
Install the proper over-current protection device in the commercial power input
distribution and consider the current capacity of the power cable and overload capacity
requirement of the system when installing (see figure 3).
It generally suggests using the thermal-magnetic breaker of tripping curve C (normal)
in Figure 3(when the current is 125%).
Separate bypass: If the system adopts the separate bypass, respectively install the
protection device of the bypass input in the input commercial power distribution location.
Note: Rectifier and the bypass input power supply should use the same neutral line.
Note: For the IT power system, install four-grade protection device in the external input
distribution and external output distribution of the UPS.
2.5.2External battery
Equip with the direct current compatible circuit breaker to supply the over-current
protection of the UPS and its battery.
2.6 Power cable
Design the external connection cable according to the description of this section and the
local connection regulation and considering the environment condition (temperature and
physical support media). The maximum stable alternating current and the direct current of
each model:
Figure 3: Input & output rated current of each capacity model
UPS
Rated current (A)
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EA99 Series UPS Manual
rated
power
(kVA)
Input current of the full load
and full charge of the battery
Discharge
Output current of full load
current of
the
minimum
380
400
415
380
400
415
battery
voltage
(400Vdc)
30
40
50
60
80
90
100
120
50
67
83
100
133
150
167
200
48
64
79
95
126
143
159
190
46
61
76
92
122
137
153
183
46
61
76
91
121
137
152
182
44
58
72
86
115
130
144
173
42
56
70
83
111
125
139
167
67
89
112
134
179
201
232
268
Link
After the complete position of the equipment, link the power wire referring to the
connection diagram in the section V and according to the following steps:
1.Completely cut all input distribution switches and the internal power switches the UPS.
Stick the warning mark in these switches to avoid other people to operate them.
2.Open the UPS door and take down the under part protection cover, and the copper bar
of the connection power cable can be watched.
3.Connect the protection ground and other necessary earthing cable to the eathing
copper bar of the bottom in the UPS power supply equipment. All UPS cabinets
should be connected with the user’s earthing.
Note: The connection of the ground wire and the midline should accord the local and the
state relevant regulation.
Mark and connect the input cable choosing one of the following two steps and according
to the installation type:
Public input connection
4.For the bypass and rectification using the same circuit of the commercial power input,
connect the alternating current input cable to the UPS input terminal (main path A-B-C,
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EA99 Series UPS Manual
input N) and the tightening torque is 5 Nm (M6 bolt)or 13 Nm(M8 bolt). Ensure the
correctness of the phase sequence.
Separate bypass connection
5.For the bypass and rectification using two circuits of the commercial power input,
connect the rectification input cable to the rectifier input terminal (main path A-B-C) and
connect the bypass power supply input cable with the bypass input (bypass A-B-C)
terminal. The tightening torque is 5 Nm (M6 bolt)or 13 Nm(M8 bolt). Ensure the
correctness of the phase sequence.
Note: For the system of the bypass and rectification input using two circuits of the
commercial power input, dismantle the short ribbon wire between the bypass and the
rectification input. Connect the midline of the bypass input and main path input together.
Frequency converter mode
6.If adopt the frequency conversion device, connect the alternating current input cable to
the rectifier input terminal (main path A-B-C) and the tightening torque is 5 Nm (M6
bolt), 13 Nm(M8 bolt)or 26Nm (M10 bolt). Ensure the correctness of the phase
sequence and tighten the connection terminal. Do not connect the alternating current
bypass power supply cable with the bypass input terminal.
Note: For the running mode of the frequency converter, dismantle the short ribbon wire
between the bypass and the rectifier input terminal.
System output connection
7.Connect the system output cable between the UPS output terminal (output A-B-C- N)
and the important load. If the load is not ready to accept the power when the
commissioning engineer comes to the site, properly handle the terminal safe insulation of
the system output cable.
External battery connection
8.Connect the battery cable between the (+\-)battery terminal of the UPS and the battery
switch. Pay attention to the polarity of the battery cable.
Note: For the connection of the cable between the battery terminal and the battery switch,
firstly connect from the switch terminal.
9.Reinstall all protection cover.
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EA99 Series UPS Manual
2.7 Control cable and communication
2.7.1Features of the monitoring panel
According to the specific requirement of the site, auxiliary connection is required for
UPS realizing the function of management of the battery system (including the external
battery switch and temperature pickup of the battery), communication of personal
computer, warning signal to the external device or remote emergency power off. These
functions are realized through the monitoring panel in the back of the UPS front door and
the monitoring panel supports the following interfaces:
1. Emergency power off control (EPO)
2. Input interface of the environment parameter
3. User communication interface (used for the parameter set and the users’ background
monitor)
4. IntellislotTM smart card interface
5. Modem interface
6. Battery temperature detection interface
Diagram 15: Schematic diagram of the monitoring panel interface
2.8 Dry contact
UPS supports the input and output dry contact.
2.8.1 Interface of the input dry contact
For the external signal of the zero-voltage (dry contact) contact connected by the
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EA99 Series UPS Manual
phoenix terminal and the input dry contact terminal, the signal is effective when these
contacts short connect with the terminal’s leftmost +12V through the software set.
Note: All auxiliary cables should be the double insulation twisted cable and the sectional
area is 0.5~1.5mm2 when the longest connection distance is 25~50m.
2.8.2 BCB switch interface of the external battery
Figure 4: Air switch interface description of the external battery
Position
J7.1
J7.2
J7.3
J7.4
Name
DRY
FB
GND
OL
Description
BCB driving signal- output (normal open)
BCB contact status- input (normal open)
Power ground
BCB online-input (normal open): The pin is effective after accessing
the interface signal of the BCB
2.8.3Input interface of emergency power off
UPS supports the emergency power off (EPO) function. It is realized through the
EPO press-button in the UPS control panel or the remote contact supported by the user.
EPO press-button is protected by the articulated plastic cover.
See in diagram 15, the J6 interface is the remote EPO input interface and the short circuit
of base pin 3 and 4 of J6 or the cut of base pin 2 and 1 will activate the emergency power
off.
If the external emergency power off function should be allocated, base pin 1 and 2 or
base pin 3 and 4 of J6 reserve the terminal to the function. The external emergency power
off device should be connected with the normal opened or normal closed remote power
off switch of the two terminals through adopting the shielded cable. If not use the
function, cut the base pin 3 and 4 of J6 or short connect the base pin 1 and 2 of J6.
Figure 5: Description of the remote EPO interface
Position
J6.1
J6.2
J6.3
J6.4
Name
EPO_NC
EPO_NC
EPO_NC
EPO_NC
Significance
Activate EPO when cut with J6.2
Activate EPO when cut with J6.1
Activate EPO when short connect with J6.4
Activate EPO when short connect with J6.3
Note: UPS emergency power off movement will close the rectifier, inverter and static
bypass, but it does not cut the UPS input commercial power from inside. If it needs to cut
the power of the UPS completely, cut the superior input switch when activate the EPO.
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EA99 Series UPS Manual
The base pin 1 and 2 of the EPO normal closed contact J6 in the monitoring panel has
been short connected when shipping. All auxiliary cables should be the double insulation
twisted cable and the sectional area is 0.5~1.5mm2 when the longest connection distance
is 25~50m.
2.8.4 Temperature detection interface of the external battery
J4 port is the TMP-2 battery temperature pickup interface. Temperature pickup of the
battery is usually connected with the external battery cupboard.
J4 base pin 1:+12V (temperature pickup power supply)
J4 base pin 2:Unused
J4 base pin 3: BAT-T (battery temperature signal)
J4 base pin 4:GND
2.8.5 Serial port RS232-1 and RS232-2
RS232-1 supplies the serial data to use as the interface of the background monitoring
software.
RS232-2 supplies the serial data to use as debugging and maintenance interface of
the authorized debugging and maintenance personnel and the switching of the SNMP
card.
2.8.6 SNMP card interface
EA99 UPS supplies the communication interface of the SNMP card to install the
communication option SNMP card (optional) on site.
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EA99 Series UPS Manual
Section III: Installation of Battery
3.1 Introduction
UPS assembled battery is connected by several batteries in series to provide the rated DC
input voltage for UPS inverter. The required battery backup time (duration of load power
supply when the utility is interrupted) is restricted by the ampere hours of battery. So it
needs to connect several batteries in parallel sometimes.
The provided battery cupboard has the following forms:
1. Complete set containing battery cupboard, battery and protection components;
2. Only contain battery cupboard and protection components−no battery;
3. Only contain battery−no battery and switch
It may need to disconnect the battery and UPS when maintain or repair the equipment.
The switch of the battery can be disconnected or closed manually. The switch off control
can be realized through the under-voltage coil of battery switch or release.
3.2 Safety
The operation of the battery of EA99UPS system shall be particularly careful, because
the voltage of the battery is deadly when connect all the single batteries. With regards to
safety, the external battery shall be installed in the cabinet with lock or special designed
battery chamber to separate from the personnel (except for the qualified engineer)
Note: The note related to the use and maintenance of battery is instructed in the battery
manual provided by the manufacturer. The note relevant to battery safety mainly includes
the necessary events in the installation and designing process; it may be adjusted
according to the local situation.
Warning:
The user cannot operate the parts that needed the tools to open behind the protection lap,
only the qualified personnel is permitted to open this type of protection lap. Besides,
please disconnect the internal battery before operating the isolation terminals used for
connecting external battery.
The following safety notes shall be paid attention when use battery:
1. There is the electric shock when use battery. Large short circuit current can cause fire
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EA99 Series UPS Manual
danger.
2. The voltage of the assembled batteries is 480Vdc with deadly danger, so please
comply with the safety notes of high voltage operation.
3. Only the qualified personnel can install and maintain the battery.
4. Wear the eye shield to avoid the accidental injury of arc.
5. Take down the ring, watch, necklace, bracelet and other medal ornaments.
6. Use the tools with insulated handle.
7. Wear the rubber glove and apron when use battery.
8. The leaked or damaged battery shall be put in the sulfate resistant container, and it
shall be disposed as scrap according to local regulations.
9. Immediately clean the skin if it contacts the electrolyte.
10.
Scrap disposal of the battery shall comply with the local environment laws.
11.
The quantity of new battery and old one shall be the same when replace the
battery.
3.3 Battery cabinet
3.3.1 Introduction
This battery cupboard can be used together with other machine cabinets, so that it can
contain more batteries to provide the system longer backup support time.
If there are two or more battery cupboards, which shall be installed side by side and
mutually connected. Besides, it suggests connecting the batteries in the general output
end in series after paralleling the air switch output end of battery cupboards.
3.3.2 Environmental temperature
Valve control lead accumulator is very sensitive to temperature, so the valve control
battery shall be used within the temperature of 15℃~25℃. When the temperature is
below 25℃, the environmental temperature increases 1℃, the battery capacity will
increase 1%. Therefore, use the battery above the temperature of 25℃ will shorten its
service life.
If the battery and UPS are installed in one room, the maximum design environmental
protection shall be determined by the battery, not UPS. That is to say, if use the valve
control battery, the indoor temperature shall be within 15℃~25℃, not 0℃~40℃ (it is
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EA99 Series UPS Manual
the regulated working temperature range of main equipment). The temperature is allowed
the deviation in a short time on the premise that the average temperature doesn’t exceed
25℃.
3.3.3 Outline dimension
The outline dimension of the battery cupboard is indicated in Figure 8. The door of the
battery cupboard shall be completely open the needed space when plan its position to
facilitate the installation and taking off the battery.
3.3.4 Weight
The sole weight of the battery cupboard is 200kg. The weight of battery cupboard shall
include the weight of battery and cable when design the battery installation. It suggests
not installing the battery cupboard on the elevated floor, this is very important.
3.3.5 Features of switch
Generally, the external battery cupboard connected with UPS of this model is protected
by the standard battery switch (provided with state contact but without under voltage trip
coil). If UPS has no automatic interrupted internal contactor, install a switch control panel
to the battery switch and a under voltage coil to control the disconnection of external
battery.
3.3.6 Temperature pickup of battery
The temperature plate of the battery can be installed in the highest temperature position
of battery cupboard (generally at the top), and it is connected directly with UPS control
system. If use the control panel of the battery switch, connect UPS control system
through the control panel of battery switch. This function can regulate the float charge
voltage of battery to make it inversely proportional to battery cupboard/room temperature,
so that the battery in the high temperature environment is not over charge.
3.3.7 Transportation of battery cupboard
The weight of the battery cupboard shall be guaranteed in the range of load-carrying
ability of the lifting equipment. The forklift or other similar equipment shall be used for
transporting the battery cupboard.
Note: Transporting the battery in the battery cabinet shall be particularly careful, and the
distance shall be controlled the shortest. Moreover, the battery cabinet must be
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guaranteed no slope. The battery and battery cabinet must be separated for long-distance
transportation.
The battery cabinet shall be firmly fixed with the foot screw after final location.
3.3.8 Cable incoming
The incoming of battery is from top and bottom. When the incoming is from bottom, take
off the bottom shielding piece of the equipment, and you can see the incoming hole.
When the incoming is from the top, take off the shielding piece of the equipment, and
you can see the bottom incoming hole.
3.3.9 Structural map of battery cupboard
The detailed structure of battery cupboard is as follows:
Diagram 16: Structure of battery cabinet
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Diagram 17: Battery connection
3.4 Power cable of battery
3.4.1 Installation of battery
1.Generally, the space between the vertical surface and the sides shall be at least 10 mm,
which can make the surrounding air freely flow.
2.There shall be a certain space between battery top and the above barricade to facilitate
the monitoring and maintenance of battery.
3.The battery shall be installed from the bottom to the top to avoid the top-heaviness.
4. There shall be retained more than 1 meter’s space around the battery cupboard, which
can facilitate the maintenance and air flow.
3.4.2 Battery connection
1.When the battery cupboard is installed on the elevated floor, the power cable of battery
and the battery switch-controlled cable can enter UPS cabinet from the bottom. If UPS is
installed adjacently to the battery cupboard on the solid floor, these cables can pass
through the machine cabinet through the underside incoming hole of battery cupboard.
2.Generally, it suggests connecting the cables between the same-layer batteries first, and
then connecting the cables between the layers, finally connecting the battery switch and
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EA99 Series UPS Manual
battery terminals.
3.Install the insulating cover to the terminals after connecting the battery terminals.
4.Connect the switch end first when connect the battery terminal and cables between the
battery switches.
3.5 Battery control
The battery switch is controlled by the control panel, which is in the battery switch box.
If the battery is the rack-mounted installation, the control panel of the battery switch shall
be near the switch. The control panel controls the trip coil of the switch, and provides the
access for the auxiliary contact of the switch to transmit the status signal of switch to
UPS control logic. Besides, the control panel of the battery switch is connected with UPS
through the auxiliary terminal J7 of monitor board behind the cabinet door of UPS.
Temperature pickup cable of battery (option) is connected among the auxiliary terminal
J4 of USP monitor board, control penal of battery switch and batteries. The connection
cable of BCB must has the protective ground wire or barrier, and it is wired separately
with the power cable (use double insulated cable); when the longest connection distance
is between 25 and 50m, the section area is generally between 0.5 and 1mm2. The
shielded wire is connected with the protective ground wire of the battery cupboard or
battery switch (not UPS).
Section IV Installation of Parallel System
The installation of parallel machine shall comply with the installation procedures of the
single machine system and the requirements of this section.
4.1 UPS single machine of parallel system
Put the single machine side by side and install these machines according to Diagram 29.
It suggests using external bypass cabinet to facilitate the maintenance and system testing.
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Diagram 18: Typical 1+N system principle
Note: The internal maintaining bypass switch CB3 must be taken off when the load
exceeds the capacity of single machine.
All the single machines must be connected with double insulated shielding parallel
controlled cable of 30m (longest).
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Diagram 19: Schematic diagram of parallel signal cable’s connection
4.2 Hot backup system
Put the single machine side by side and connect these machines according to the
following instruction.
The hot backup system is connected in series by two UPS single machines with same
capacity, and one is the host (subordinate UPS), another is slave (superior UPS). Besides,
the host and slave are determined by the connection of power cable and setting of
allocation software. Normally, the host and slave are operated of inverted supply mode,
the output of the superior UPS single machine (slave) provides the power supply for the
bypass input of another UPS single machine (subordinate UPS, host). The output of the
subordinate UPS (host) is connected with the important load, and has the output
synchronization with superior UPS (slave). When the inverter of UPS connected with the
load has fault, the converter of the superior UPS (slave) will supply the load through the
bypass of subordinate UPS (host). Moreover, the system can be set to make the
subordinate UPS (host) run alternatively with inverted supply and bypass modes, so that
the two UPS can provide the power supply for the load through alternative operation.
Note: As for the hot backup system, the first thing is to start up the host.
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Diagram 20: Schematic diagram of hot backup parallel machine (host and slave)
The wring of power cable is similar to single system machine, the different is to connect
the output of superior UPS with the bypass input of the subordinate UPS in the hot
backup system, and the subordinate UPS supplies the load through its inverter or bypass.
Besides, the input power supply of the bypass and main path must use the same neutral
wire input terminal.
Section V: Installation Diagram
5.1 External structure
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Diagram 21: External view of overall machine
5.2 Internal view
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Diagram 22: Schematic diagram of internal door
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Diagram 23: Internal structure-1
Diagram 24: Internal structure-2
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5.3 Instruction of connection terminal
Diagram 25: Schematic diagram of input & output connection terminal
Section VI: Operation Procedure
After installing and debugging of the authorized maintenance engineer, UPS can be run
according to the mode of Section II. This Section describes the operation procedures in
various running modes for the operator, including the start-up procedures of UPS, the
operation procedure to shift the load to bypass and the power-off procedures of UPS.
Note 1: Please see the user’s operational key and LED display related to the operation
procedure in Section VII.
Note 2: Please see all the power supply switches in UPS cabinet (visible when open the
front door of cabinet, with lock) in Diagram 25
Start-up procedure (access to inverted supply mode)
This procedure is used for starting up on the premise that UPS is disconnected completely,
it means that UPS don’t supply the load or supplies the load through the maintenance
bypass switch. Here supposes that the UPS is installed and debugged by the engineer, and
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the external power supply switch is closed.
As for the parallel system, operate one step for each single machine, and then continue
the next procedure.
Warning:
z
The procedure will make the output terminal of UPS electrify with commercial
power voltage.
z
If required, disconnect the subordinate load connection and stick on the warning
signs on the position of connection.
z
The user cannot operate the parts that needed the tools to open behind the protection
lap.
z
Only the qualified personnel are permitted to open this type of protection lap.
1.Open the door of UPS and you can see the operational switch of power supply.
2.Close the bypass input switch CB2 and the output switch CB4 of UPS, and LCD
display begins to run at this moment. After starting up UPS, it begins to supply the
bypass first, and the fan of overall machine begins to run. At this time, the bypass
indicator and load indicator is light. The state of LED indicator is as follows:
Figure 7: LED display of bypass supply
LED No.
LED Name
State
BYP
Bypass indicator
Green
OUTPUT
Output indicator
Green
BAT
Battery indicator
Red
STATUS
Alarm indicator
Amber/red
1. Close the external battery switch, which locates near the inside battery cupboard (If
use the battery cupboard) or battery carrier (if use battery carrier). When the system
detects the existence of battery, the red battery indicator goes out. Look for the battery
data in the display field of liquid crystal panel to check whether the voltage display of
the battery is correct, and check the current record that whether the battery is alarmed
connection reversely. If in this situation, please disconnect the machine to check
whether the positive and negative poles are connected reversely.
4、Close the rectified input switch CB1. When starting up the rectifier, the indicator
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twinkles with green color. About 30 seconds later, the rectifier begins to run, and the
indicator turns light normally.
5、Continuously turn on and off according to the panel INV ON (inverted start-up) for 2
seconds. Start up the inverter, and when the voltage frequency of the inverter and
bypass is synchronous, the indicator of the inverter is light. After starting-up the
inverter, UPS shifts from bypass supply to inverter supply. At this moment, the
bypass indicator goes out, and the indicator of the inverter turns green normally.
6、When the system detects that the rectifier runs normally, the battery is installed and the
battery charger begins to run, at this moment, when you look for the battery data in
the liquid crystal display field, it will show the detailed data of charging current.
7、Check and confirm that there is no alarm information at the top right corner of LED
display screen, and UPS runs with inverted mode, and LED display state is as
follows:
Figure 8: Panel LED indicator
LED No.
LED Name
State
REC
Indicator of rectifier
Green
BAT
Indicator of battery
Light out
BYP
Indicator of bypass
Light out
INV
Indicator of inverter
Green
OUTPUT
Output indicator
Green
STATUS
Alarm indicator
Light out
6.2 Start-up procedure (access to economic mode)
It only adapts to the single system that is set the economic mode by the debugging
engineer. After finishing the operational procedure described in 6.1, you shall confirm
that the bypass indicator of the panel is green (indicating that the load is supplied by the
bypass commercial power). At this moment, UPS is in ECO running mode.
6.3 Operational procedure of battery maintenance mode
Select the command window of battery maintenance on the front panel LCD of UPS.
UPS will shift to the battery supply mode. Before the alarming of battery voltage, the
system can automatically shift to the main path supply mode. The system can
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automatically record the discharge curve of battery in this process. After testing, the
system can automatically update the battery data and actual capacity of the backup time
(display when the commercial power is faulted) needed by the calculation (compared
with the new battery, the percentage of battery capacity is displayed at the inverted
supply mode).
6.4 Operational procedures of maintenance bypass (UPS power off procedure)
The following procedures indicate that the load is shifted from UPS supply protection
state to directly connect with AC input bypass power supply through the maintenance
bypass switch.
1.Press INVERTER OFF key on the front panel of UPS, the UPS inverter is turned off,
and UPS supplies the load through static bypass. At this moment, the indicator of the
inverter (INV) goes out; the overall alarm indicator (STATUS) is light.
2.As for the single system and “1+1” redundant parallel system, close the internal
maintenance bypass switch Q3 and any other external maintenance bypass switches
(in case).
3.As for “1+1” redundant parallel system and “1+1” capacity parallel system, the
external maintenance shall be closed. (When the load of capacity-expanded parallel
machine is more than the capacity of single machine, it is forbidden to use the single
machine to maintain the bypass; otherwise, there will be power down).
4.Now, the maintenance bypass power supply is in parallel with the UPS static switch
power supply. The display window will display the relevant operations (including
closing the maintenance bypass etc.)
5.Press the relevant emergency power off (EPO) key on the front panel of UPS single
machine, and disconnect the input air switch of main path manually, bypass air switch
and external battery air switch, this moment, UPS turns to maintenance bypass supply,
and the liquid crystal panel of UPS system is power down.
This moment, the shift operation from UPS to maintenance bypass is completed; the load
is supplied directly by the maintenance bypass.
Note: The load is supplied directly by the maintenance bypass at this time and UPS is
power off. The load equipment has no abnormal protection of AC power supply.
6.5 Procedures of power off (completely turn off UPS and load)
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It shall comply with this procedure when completely shut down UPS and disconnect the
load. The power supply and breaker shall be disconnected and UPS don’t supply for the
load. As for the parallel system, operate one step to each single machine, and then
continue the next procedure.
1. Press the emergency power off (EPO) key on the front panel of UPS, which will turn
off the rectifier and inverter. Disconnect the static switch and battery to interrupt the
load.
2. Open the door of UPS and you can see the operating switch of power supply.
3. Disconnect the input switch CB1 of rectifier, output air switch CB4 and bypass input
air switch CB2, and then disconnect the external battery air switch.
4. Make sure to disconnect the maintenance bypass switch CB3.
5. As the internal power supply depended on the commercial power is turned off, the
LED indicators on the panel go out and LCD display turns off.
6. To completely disconnect UPS, the external commercial power distribution switch
(there are two switches for the separate bypass system using independent power input
of rectifier and bypass) and the external output switch must be disconnected and stuck
on the warning signs.
6.6 Procedures of emergency power off (EPO)
The emergency power off (EPO) switch is used in the emergent situation (such as
fire and flood, etc.) to turn off UPS. The system will turn off the rectifier and inverter,
and immediately cut off the load supply (including the inverted and bypass output).
Moreover, the battery stops charging or discharging.
If there is still the commercial power input to UPS, the control circuit of UPS is still
electrified, but the UPS output is turned off. If it needs to completely shift the
commercial power supply of UPS, the external input switch of commercial power shall
be disconnected.
First, it needs to completely disconnect UPS, it is to disconnect the input switch manually,
and then UPS can exit the emergent power off situation.
6.7Certain UPS reset procedures after fault alarm
When some reasons cause the power-off of UPS (The rectifier or inverter has overheat
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and overload leading power off, the busbar has overvoltage, the battery has overvoltage
and is shifted too many times, etc.), after adopting measures by the alarm information
suggested in the display screen to clear the fault, the following UPS reset procedures
shall be implemented to make UPS work normally.
After confirming that the fault is cleared and without the remote EPO signal, please
implement the following procedures:
1. Press FAULT CLEAR key to make the system exit the emergency power off state.
The rectifier starts up automatically.
2. Press the right INVERTER ON key behind the control penal for over 2 seconds. The
inverter begins to supply the power.
Note: After the overheated signal disappears for 5 minutes and the overheated fault is
cleared, the rectifier starts up automatically.
6.8 Automatic start-up
When the commercial power is interrupted, UPS supplies the load through the battery
system, until the battery discharge reaches to the end-of discharge voltage (EOD), UPS
stops the output. When the commercial power recovers, UPS can start up automatically
and resume the output supply.
6.9 Language select
LCD menu and data have both English and Chinese display. The setting can be selected
through the menu of panel.
6.10 Alter the current date and time
The setting can be selected through the menu of panel.
6.11Controlling password
The system provides the password protection to restrict certain operations of the operator,
and the default password is “88888888”. The operator can perform UPS and test
operations of battery only approved by the password.
Section VII: Operational & Controlling Display Panel
7.1Introduction
The operational display panel of UPS is on the front panel. Through which, UPS can be
operated and controlled to inquire the parameters, UPS & battery states and events &
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alarm information. This panel can be divided into three parts by its functions, including
simulation state diagram, LCD display & menu key and control & operational key.
Simulation state diagram
LCD display & menu key
Control & operational key
Diagram 25: UPS control and display panel
Figure 9: Components description of UPS operational & display panel
Silk screen
REC
Function
Indicator
of
Key
rectifier
EPO
(input AC to DC)
BAT
Battery
DC
Emergency power
off (EPO) switch
indicator
(backup
Function
INV ON
power
Start-up switch of
inverter
supply)
BYP
Bypass input indicator
INV OFF
Turn-off switch of
inverter
INV
Indicator
of
inverter
FAULT CLEAR
Fault reset switch
SILENCE ON/OFF
Alarm
(DC to AC)
OUTPUT
Load
output)
indicator
(AC
silence
switch
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STATUS
UPS state and alarm
F1, F2, F3, F4
LCD menu key
indicator
ALARM
Sound alarm (buzzer)
7.1.1Simulation state diagram
The simulation state diagram provides the LED indicator, which displays the work paths
and current work state of UPS.
State description of rectifier indicator (REC)
Green normal
The rectifier runs normally
Green twinkle
The commercial power is normal, but the rectifier doesn’t run
Red normal
The rectifier has fault
Light out
The rectifier doesn’t run and the commercial power is abnormal
State description of battery indicator (BAT)
Green normal
The battery provides the load supply
Green twinkle
Alarm the end of discharge of battery
Red normal
The battery is abnormal (the battery is fault, no battery or the battery is
connected reversely) or the converter of the battery is abnormal (with fault,
over current or overheating)
Light out
The battery and the converter are normal and the battery is charging
State description of bypass indicator (BYP)
Green normal
The bypass provides the load supply
Red normal
The bypass power supply is abnormal or exceeds the normal range, or the
static bypass switch is faulted
Light out
The bypass is normal
State description of inverter indicator (INV)
Green normal
The inverter provides the load supply
Green twinkle
The inverter is started synchronously or in the backup state (ECO mode)
Red normal
The inverter has fault
Light out
The inverter doesn’t run
State description of load indicator (OUTPUT)
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Green normal
UPS has output and is normal
Red normal
UPS has output but is overloaded
Light out
UPS has no output
State description of state indicator (ALARM)
Green normal
It runs normally
Yellow normal
UPS is alarming (such as : AC fault)
Red normal
UPS has fault (such as: The fuse or hardware has fault)
7.1.2Sound alarm (buzzer)
UPS has two types of sound alarm in the running process:
Sound alarm description of buzzer
Once alarm
You will hear this sound when press any functional operation key
Continuous alarm
You will hear this sound when UPS has fault (such as: The fuse or hardware
has fault)
7.1.3Functional operation key
Emergency
power
off
(EPO)
Used for cutting off the load supply. Turn off the rectifier,
switch
inverter, static bypass and battery
Turn on the switch of inverter (INV
Used for starting up the inverter
ON)
Turn off the switch of inverter
Used for turning off the inverter
(INV OFF)
Fault
reset
switch
(FAULT
Clear the fault
CLEAR)
Alarm silence switch (SILENCE
When alarming, press this key to remove the sound. Press this
ON/OFF)
key again to restart the buzzer
7.1.4 LCD and menu key
LCD displays friendly interface and provides lattice graphical display of 320 x 240. It can
display the alarm information at real-time and provide10, 000 historical alarm records for
the users to inquire, which offers the reliable basis to fault diagnosis.
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The user can perform the operational order through LCD display interface to
conveniently browse the input, output, load and battery parameters, so that they can
acquire the current UPS state and alarm information. Besides, LCD can display the
version information of the software of converter, inverter and internal monitor board.
There are five menu key, and the function description is as follows:
Figure 10: description of menu icon meaning
Tree-structure diagram of menu displayed in LCD is as follows:
Figure 11: Events list displayed in panel
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Main Phase voltage (V)
path Phase current (A)
Frequency (Hz)
input Power factor
Bypass
input
Phase voltage (V)
Frequency (Hz)
Battery voltage (V)
Battery current (A)
Battery temperature (℃)
Battery Time remaining (Min.)
Battery capacity (%)
data
Battery discharge
Battery is in equalized charging
Apparent power (KVA)
Active power (KW)
Parallel
Reactive power (KVAR)
load
The single machine system has no
parallel data
Phase voltage (V)
AC Phase current (A)
input Frequency (Hz)
Power factor
Historical
Historical record information
records
Language
of menu (Language select)
Battery is in floating
Password setting controlling
Function Background message protocol setting
setting Date and time setting
Address setting of UPS equipment
Battery self- test
Test Battery self-check manually
order System test
Terminate test
Serial Number.
UPS model
Monitor version
System
Rectified version
information
Inverted version
Tel:0769-22897777
Http://www.eastups.com
7.1.5 Detailed menu description
Information window of UPS system: Display the basic information of UPS, including the
current time, date, UPS name and its allocation & state. The information of this window
doesn’t need the user to operate; the detailed explanation is as Figure 12:
Figure 12: Items description of UPS system information window
Displayed content
EA9960
Meaning
Name of UPS series
(Allocation)
single Single machine on-line: Double exchange single machine
machine on-line, single system
machine
ECO,
hot Single machine ECO: The UPS setting is single machine
backup host, hot backup system, running with economic mode.
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slave, parallel machine Hot backup host: Host of 1+1 hot backup system
(1/6)
Hot backup slave: Slave of 1+1 hot backup system
Parallel machine (1/6): No. 1 single machine of parallel
machine composed by 6 single machines (maximum)
Jan. 9, 2009
Current date (format: year-month-day)
15:26
Current time (format: 24 hours, hour: minute)
Use up and down key to select the menu window and data window.
Figure 13: UPS menu window and data window
Name of menu
Item of menu
Meaning
Main path
Phase voltage (V)
Phase voltage
input
Phase current (A)
Phase current
Frequency (Hz)
Frequency
Power factor
Power factor
Phase voltage (V)
Phase voltage
Frequency (Hz)
Frequency
Phase voltage (V)
Phase voltage
Phase current (A)
Phase current
Frequency (Hz)
Frequency
Power factor
Power factor
Apparent power
Sout: Apparent power
Bypass input
AC input
Local load
(kVA)
Active power (kW)
Pout: Active power
Reactive power
Qout: Reactive power
(kVAR)
Load percentage
Load (UPS rating load percentage indication)
(%)
Local load
Apparent power
Sout: Apparent power
(kVA)
Active power (kW)
Pout: Active power
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Reactive power
Qout: Reactive power
(kVAR)
The single machine
When UPS is set in single machine mode,
system has no
there is only local load, no system load.
parallel data
Battery data
Battery voltage (V)
Busbar voltage of battery
Battery current (A)
Busbar current of battery
Battery temperature
Internal battery temperature℃
(℃)
Time remaining
Remaining backup time of battery
(Min.)
Battery capacity
Compared with the percentage of new
(%)
battery’s capacity
Battery discharge
The battery is discharging
Battery
is
in The battery is in equalized charging state
equalized charging
Battery is in
The battery is in floating charging state
floating charging
The battery is not
The battery is not connected
connected
Historical
record
Language of
Historical
record Display the historical records
information
(language select)
Provide two LCD languages
menu
Function
Control
setting
setting
password The user can alter the controlling password
Background
Provide two background message protocols
message protocol
setting
Date and time Set the date and time
setting
Address setting of Adaptive to RS485 mode
UPS equipment
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Test order
Battery
self-check
manually
Battery
maintain Manually maintain the battery to carry out
manually
part charging to get the probable data of
battery capacity. The load
must be within
the range of 20%~80%.
System test
It is the self-test of UPS
Terminate test
Manually terminate the battery manual
self-check, manual maintenance or system
test
System
UPS model
Provide the information of UPS model, for
information
example: 220V-50Hz
Monitor version
Provide the version No. information of
monitor software
Rectified version
Provide the version No. information of
rectified software
Inverted version
Provide version No. information of inverted
software
Current record window:
The window records the events that cause the current running mode of UPS, and the
solved transient situation is not recorded.
Use F1, up and down key to browse the events.
Please see the complete historical records in the historical record window in menu and
data window.
Please see the list of UPS events displayed in the front panel of UPS in figure 14.
7.2List of displayed events of liquid crystal panel
Figure 14: List of displayed events
UPS events
Explanation
Load On UPS, Set
UPS is in the inverted supply mode
Load On Bypass, Set
UPS is in the bypass mode
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No Output, Set
UPS is power off and the output is disconnected
Load On Other, Set
The adjacent machine supplies
Battery Charge Stop, Set
The charge is idle
Battery Self Test, Set
Battery state (self-checking)
Battery Boost Charge, Set
Battery state (equalized charging)
Battery Float Charge Set
Battery state (floating charging)
Battery Discharging, Set
Battery state(discharging)
Rectifier Off, Set
The rectifier is idle
Rectifier SoftStarting, Set
The rectifier is soft-starting
Rectifier Normal, Set
The rectifier works normally
Input CB1 Closed, Set
Input CB1 Open, Set
The input power switch of AC commercial power is
closed
The input power switch of AC commercial power
disconnects
Inverter On Allowed, Set
Allow to start-up
Inverter On Forbidden, Set
Forbid to start-up
Battery CB Closed, Set
The battery contactor is closed
Battery CB Open, Set
The battery contactor is disconnected
Battery Connected, Set
The battery is connected
No Battery, Set
Inspect the battery and its connection
Output CB4 Closed, Set
UPS output power switch is closed
Output CB4 Open, Set
UPS output power switch is disconnected
Bypass Available, Set
The bypass can supply power
Bypass Unavailable, Set
The bypass can’t supply power
Inverter Off, Set
The inverter is idle
Inverter SoftStarting, Set
The inverter is soft-starting
Inverter Normal, Set
The inverter works normally
Inverter Unavailable, Set
The inverter can’t supply power
Inverter Not Online, Set
The inverter doesn’t supply power
Inverter Online, Set
The inverter is supplying power
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Maintenance CB3 Closed, Set
Maintenance CB3 Open, Set
The maintenance bypass power switch is closed
The
maintenance
bypass
power
switch
disconnected
Bypass CB2 Closed, Set
The input power supply of AC bypass is closed
Bypass CB2 Open, Set
The input power switch of AC bypass is closed
Emergency Power Off, Set
is
Emergency power off: Directly press EPO key on
the panel or receive the external emergency power
off order
System Service Mode, Set
The system is maintaining
System Service Mode, Clear
Capacity Not enough, Set
The start-up capacity is insufficient
Capacity Not enough, Clear
The start-up capacity is normal
The parallel system can shift from bypass to
Overload No Transform, Set
inverted output on premise that the overall load
must be less than the capacity of single machine
(the load power supply is interrupted)
Overload No Transform, Clear The shift can be interrupted
Receive the access signal of oil engine. The united
Generator Input, Set
supply mode can be started up according to the
setting of UPS.
No Generator, Clear
Battery CB Trip, Set
Drive the battery BCB to trip
Battery CB Trip, Clear
BCB Box Connect, Set
The battery BCB has been accessed
No BCB Box, Set
There is no battery BCB
BCB Closed, Set
Battery switch state (close)
BCB Open, Set
Battery switch state (disconnect)
Inverter Asynchronous, Set
When the difference of phase angle for the phase
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voltage of inverter and bypass is more than 6
degree, the software program of the inverter will
trigger the alarm. The set value of amplitude is the
rating ± 10 % . When the alarm condition is
eliminated, the alarm can resume automatically.
First check if there is “bypass ultra-tracking” or
“bypass ultra-protection” alarm. If there is, first
eliminate the alarm. 2. Check if the voltage
waveform of the bypass is normal. If the voltage
waveform distortion is serious, ask the user to
confirm and seek for solutions.
Inverter Asynchronous, Clear
The inverter runs synchronous
Utility Fail, Set
The commercial power has fault
Utility Fail, Clear
The commercial power is normal
Rectifier Fault, Set
The rectifier has fault
Rectifier Fault, Clear
The rectifier is normal
The output voltage of inverter is out of the limit,
Inverter Fault, Set
the load transfers to bypass.
Inverter Fault, Clear
The inverter is normal
Bypass Fail, Set
The bypass has fault
Bypass Fail, Clear
The bypass is normal.
Battery Voltage Abnormal, Set The voltage of accumulator has fault
Battery
Voltage
Abnormal, The voltage of accumulator is normal
Clear
Voltage input A Low, Set
Phase A input voltage is low.
Voltage input A high, Set
Phase A input voltage is high
Voltage input A Abnormal, Phase A input voltage is normal
Clear
Voltage input B Low, Set
Phase B input voltage is low
Voltage input B high, Set
Phase B input voltage is high
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EA99 Series UPS Manual
Voltage input B Abnormal, Phase B input voltage is normal
Clear
Voltage input C Low, Set
Phase C input voltage is low
Voltage input C high, Set
Phase C input voltage is high
Voltage input C Abnormal, Phase C input voltage is normal
Clear
Input A OverCurrent, Set
Phase A input current is excessive
Input A OverCurrent, Clear
Phase A input current is normal
Input B OverCurrent, Set
Phase B input current is excessive
Input B OverCurrent, Clear
Phase B input current is normal
Input C OverCurrent, Set
Phase C input current is excessive
Input C OverCurrent, Clear
Phase C input current is normal
Voltage Output A Low, Set
Phase A output voltage is low
Voltage
Output
A
high, Phase A output voltage is high
Set
Voltage Output A Abnormal,
Clear
Phase A output voltage is normal
Voltage Output B Low, Set
Phase B output voltage is low
Voltage
Output
B
high, Phase B output voltage is high
Set
Voltage Output B Abnormal, Phase B output voltage is normal
Clear
Voltage Output C Low, Set
Voltage
Output
C
Phase C output voltages is low
high, Phase C output voltage is high
Set
Voltage Output C Abnormal, Phase C output voltage is normal
Clear
Output A OverCurrent, Set
Phase A output current is excessive
Output A OverCurrent, Clear
Phase A output current is normal
Output B OverCurrent, Set
Phase B output current is excessive
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EA99 Series UPS Manual
Output B OverCurrent, Clear
Phase B output current is normal
Output C OverCurrent, Set
Phase C output current is excessive
Output C OverCurrent, Clear
Phase C output current is normal
Voltage Bus Low, Set
DC voltage is low
Voltage
Bus
High, DC voltage is high
Set
Voltage Bus Abnormity, Set
DC voltage is normal
Output Frequency Low, Set
The output frequency is low
Output Frequency High, Set
The output frequency is high
Output Frequency Abnormity, The output frequency is normal
Clear
Voltage input Abnormal, Set
The voltage of commercial power is abnormal
Voltage input Abnormal, Clear The voltage of commercial power is normal
Input Frequency Abnormal, The frequency of commercial power is abnormal
Set
Input Frequency Abnormal, The frequency of commercial power is normal
Clear
Input Reverse Sequence, Set
Input
Reverse
The phase sequence of main path is reverse
Sequence, The phase sequence of main path is normal
Clear
The rectifier can’t start up because the voltage of
Soft-start Fail, Set
DC busbar is low
Soft-start Fail, Clear
Rectification
The input soft-start is normal
IGBT The rectification IGBT current is excessive
OverCurrent, Set
Rectification
IGBT The rectification IGBT current is normal
OverCurrent, Clear
Rectification inductance Over
Temperature, Set
The input filter inductance of the rectifier is
overheated. Turn off the rectifier, the battery
discharges
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EA99 Series UPS Manual
Rectification inductance Over
Temperature, Clear
Rectification
The input inductance has normal temperature
Over The rectifier has high temperature
Temperature, Set
Rectification
Over The rectifier has normal temperature
Temperature, Clear
The voltage of DC busbar is too high, which causes
turning off of the rectifier, inverter and battery
Bus OverVoltage, Set
converter. Check whether the rectifier side has fault
or not. If there is no fault, check whether there is
overheat or not. After eliminating the fault, restart
the inverter.
Bus OverVoltage, Clear
The voltage of the busbar is normal
Fan Fault, Set
At least one cooling fan has fault
Fan Fault, Clear
The fan is normal
Input Backfeed, Set
Main path reverse protection
Input Backfeed, Clear
The voltage difference of positive and negative
Balance Unit Fail, Set
busbar is more than 50v, which exceeds the DC
bias compensation capacity of inverter. The inverter
is turned off, the load transfers to bypass
Balance Unit Fail, Clear
Voltage Bus Low, Off, Set
The balanced circuit is normal
The voltage of DC busbar causes the power off of
inverter. The load is shifted to bypass
Voltage Bus Low, Off, Clear
The busbar voltage is normal
Battery Reverse, Set
Reconnect the battery and check the connection
Battery Reverse, Clear
The battery connection is correct
Battery Leakage, Set
Battery leakage protection
Battery Leakage, Clear
Cold Start Fail, Set
The battery cold start fails
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EA99 Series UPS Manual
Cold Start Fail, Clear
Charger Over Voltage, Set
The voltage of the charger has too high voltage
Charger Over Voltage, Clear
The voltage of the charger is normal
Battery Over Temperature, Set The temperature of the battery is too high
Battery
Over
Temperature, The temperature of the battery is normal
Clear
Charger Fault, Set
The charger is faulted
Charger Fault, Clear
The charger is normal
Battery Voltage Low, Set
The voltage of the battery is low
Battery Voltage Low, Clear
The voltage of the battery is normal
End Off Discharge, Set
End Off Discharge, Clear
When the battery discharge reaches to the terminate
voltage, the inverter is turned off.
The discharge is ended
Rectification Communication The rectification message is faulted
Fail, Set
Rectification Communication The rectification message is normal
Fail, Clear
The phase sequence of the bypass is reversed. In
the normal situation, phase B lags 120 degree
Bypass Reverse Sequence, Set compared to phase A, phase C lags 120 degree to
phase B. Check if the phase sequence of the bypass
power is right. Correct it if it’s wrong.
Bypass
Reverse
Sequence, The phase sequence of the bypass is correct.
Clear
Bypass Voltage Abnormity, The bypass voltage is abnormal
Set
Bypass Voltage Abnormity, The bypass voltage is normal
Clear
Bypass STS Fail, Set
At least one static switch at the side of bypass
disconnects or has short circuit. The fault is locked
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EA99 Series UPS Manual
up until disconnection
Bypass STS Fail, Clear
The bypass thyristor is normal
Bypass OverLoad, Set
The bypass has overload
Bypass OverLoad, Clear
Bypass OverLoad Timeout, The bypass overload has time delay
Set
Bypass OverLoad Timeout,
Clear
When the voltage amplitude or frequency exceeds
the normal range, the software program of the
inverter will trigger the alarm. The set value of
amplitude is the rating ±10%. When the bypass
voltage
recovers,
the
alarm
can
resume
automatically.
Bypass Trace Unable, Set
1. First check and confirm that the displayed
bypass voltage and frequency on the panel are
within the setting range; the rated voltage and
frequency are respectively appointed by “output
voltage” and “output frequency”. 2. If the
displayed voltage is abnormal, measure the
actual bypass voltage and frequency. If there is
fault, check the external power supply.
Bypass Trace Unable, Clear
When the voltage amplitude or frequency is too
high, the software program of the inverter will
trigger the alarm. The set value of amplitude is the
Bypass Backfeed, Set
rating ±10%. When the bypass voltage recovers,
the alarm can resume automatically. Firstly, check
if there is the relevant alarm, such as
“disconnection of bypass air switch”, “phase
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EA99 Series UPS Manual
sequence of bypass is reversed” and “input lacking
fail-save”. If there is the relevant alarm, eliminate
the alarm first, and then check and confirm that the
displayed bypass voltage and frequency are within
the setting range; the rated voltage and frequency
are respectively appointed by “class setting of
output voltage” and “class setting of output
frequency”. If the displayed voltage is abnormal,
measure the actual bypass voltage and frequency. If
there is the abnormity, check the external bypass
power supply. If the alarm is frequent, the
allocation software can be used for properly
promoting the set point of upper limit according to
the user’s opinion.
Bypass Backfeed, Clear
Load impact causes the system shifting to bypass,
Load Impact Transfer, Set
UPS can resume automatically. Start up the load in
sequence to reduce the load impact of inverter.
Load Impact Transfer, Clear
UPS is overloaded and exceeds the allowed
overtime.
Note 1: The highest load phase first displays the
load’s overtime; Note 2: when the load exceeds the
rated value, report “local output overload”; Note 3:
Inverter Overload Timeout, when it exceeds the overloaded time, the static
Set
switch at the side of the inverter is disconnected,
the load is shifted to bypass; the load is turned off
and restarts after 10 minutes. Note 4: After the load
reduces below 95% for 5 minutes, the system
shifts to inverter mode. Refer to the load percentage
displayed on LCD panel to confirm the reality of
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EA99 Series UPS Manual
the alarm. If LCD is overloaded, check the actual
load to confirm that UPS is overloaded or not
before alarming.
Inverter Overload Timeout,
Clear
Bypass Abnormal Off, Set
The bypass and inverted voltage are abnormal. The
load supply is disconnected
Bypass Abnormal Off, Clear
Auxiliary Power Off, Set
Ups can run but the control power supply is
abnormal or there is no one
Auxiliary Power Off, Clear
Auxiliary Power Fail, Set
The auxiliary power supply is normal
Auxiliary Power Fail, Clear
The auxiliary power supply is normal
The auxiliary power supply is faulted
All the single machines of the parallel system are
shifted to the bypass supply mode at the same time.
System Transfer Require, Set
The passively shifted to bypass of the UPS single
machine
and
LCD
can
display
the
alarm
information
System
Transfer
Require,
Clear
The shift frequency of overload in the first one hour
exceeds the setting value, which causes the load
Transfer Times Out, Set
stay at the bypass supply state. UPS can
automatically resume in one hour and shift to the
inverted supply state.
Transfer Times Out, Clear
Battery Contact Fail, Set
The shift frequency of this hour is restricted
The battery contactor or the switch don’t response
to the control signal
Battery Contact Fail, Clear
The battery contactor is normal
Input Fuse Fail, Set
The internal AC input fuse of the rectifier has fault.
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EA99 Series UPS Manual
The rectifier is turned off, the battery discharges.
Input Fuse Fail, Clear
The input fuse is normal
The bypass current exceeds 135% of the rated
Bypass OverCurrent, Set
value. UPS only alarms without action
Bypass OverCurrent, Clear
Inverter
inductance
Temperature, Set
Inverter
inductance
Temperature, Clear
Over
The output filter inductance of the inverter is
overheated. The inverter is turned off, the load
transfers to bypass
Over The temperature of the inverter inductance is
normal
Inverter Over Temperature, The temperature of the inverter is too high
Set
Inverter Over Temperature, The temperature of the inverter is normal
Clear
Inverter IGBT OverCurrent, The pulse width modulated module of the inverter
Set
has overcurrent
Inverter IGBT OverCurrent, The inverted IGBT is normal
Clear
At least one output fuse of the inverter is
Output Fuse Fail, Set
disconnected. The inverter is turned off, the load
transfers to bypass
Output Fuse Fail, Clear
The output fuse is normal
It alarms when the load exceeds 105%of the rated
value. The alarm will automatically resume after
eliminating the load state. 1. Confirm which phase
Unit Over Load, Set
is overloaded by referring to the load percentage
displayed on LCD panel to confirm the reality of
the alarm. 2. If the alarm is real, measure the actual
output current to confirm the correctness of
displayed value. Disconnect the unimportant load.
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EA99 Series UPS Manual
The imbalance of the load in parallel system can
also cause the alarm
Unit Over Load, Clear
The local output is not overloaded
At least one static switch of the inverter is
Inverter STS Fail, Set
disconnected or has short circuit. The fault is
locked up until disconnection
Inverter STS Fail, Clear
The inverted thyristor is normal
Inverter Communication Fail, The inverted communication is faulted
Set
Inverter Communication Fail, The inverted communication is normal
Clear
The manual start-up of the inverter fails, because of
the invalid operation (the maintenance bypass
Manual On Fail, Set
switch is closed), the DC busbar or rectifier doesn’t
prepare well
Manual On Fail, Clear
The parallel cable has wrong connection. Press
Parallel Connection Fail, Set
FAULT CLEAR key to reset the fault, then press
INVERTER ON to restart the inverter
Parallel
Connection
Fail, The parallel wire connects well
Clear
Parallel Sharing Fail, Set
The UPS single machine of the parallel system
can’t has load sharing
Parallel Sharing Fail, Clear
Operation Invalid, Set
When there is error operation, trigger this event
Operation Invalid, Clear
The user operates well
Output Shorted, Set
The output is short circuited
Output Shorted, Clear
Fault Clear, Set
Press FAULT CLEAR key (fault reset) on the panel
Manual Inverter On, Set
Manually start up the inverter through the key of
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EA99 Series UPS Manual
the front panel
Manual Inverter Off, Set
Manually turn off the inverter through the key of
the front panel
Output Inhibitted, Set
UPS output is forbidden (test model)
Output Allow, Set
Allow the inverted output
Battery Self Test, Set
Self-check of battery
Battery Test OK, Set
Successful manual self-check of battery
Battery Test Fail, Set
The manual self-check of the battery is failed
Battery Maintenance Test, Set
Manual maintenance of battery
Battery Maintenance OK, Set
The manual maintenance of battery is successful
Battery Maintenance Fail, Set
The manual maintenance of the battery is failed
System Test, Set
System test
System Test OK, Set
Successful system test
System Test Fail, Set
Failed system test
Stop Testing, Set
Stop the ongoing manual self-check, maintenance
or system test;
Clear Hislog, Set
Historical records deleting
Appendix: Product specification
The design of the product complies with the following standards:
Figure 15: European and international standard
Item
General
safety
requirements
Standard
of
UPS
EN 50091-1-1/IEC 62040-1-1/AS 62040-1-1
operational area
EMC Requirements of UPS
EN 50091-2/IEC 62040-2/AS 62040-2 (Class A)
UPS property confirmation method and test
EN 50091-3/IEC 62040-3/AS 62040-3 (VFI SS
requirements
111)
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EA99 Series UPS Manual
The environmental features of the product are as follows:
Figure 16: Environmental features
Rated power:
Unit
30
40
50
60
80
90
100
120
dBA
55
55
62
62
62
64
65
65
m
≤3000m
kVA
Noises within
1 meter
Sea
level
height
Relative
The power reduces 1% when it increases 100m within 3000~8000m
—
0~95%, no condensation
℃
0~40 note: The service life of the battery will be shorten half when it
humidity
Operating
increases 10 ℃ above 20℃
temperature
UPS
℃
-20~70
storing-transp
ortation
temperature
The mechanical features of the product are as follows:
Figure 17: Mechanical features of UPS
Rated power
kVA
Mechanical
dimension
W×D×H
Weight (no
battery)
Unit
30
mm
kg
40
50
60
80
700×800×1820
300
320
340
360
90
100
120
1000×800×1880
400
550
570
600
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EA99 Series UPS Manual
Schematic diagram of fan’s position of EA9960,EA9980
Page81
EA99 Series UPS Manual
Schematic diagram of fan’s position of EA9930,EA9940,EA9950
Diagram 27: Schematic diagram of fan’s position
Page82
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