MITSUBISHI ELECTRIC
2033D SERIES
(30, 50, 80kVA)
SPECIFICATIONS
SP-0009
EMERGENCY SERVICE
2033D_specs_Rev2.doc
www.ces.ca
CALGARY - EDMONTON - VANCOUVER - SASKATOON
Rev. 2 12/15/06
TABLE OF CONTENTS
1.
SCOPE..........................................................................................................................................................1
1.1
2.
The System .................................................................................................................................................... 1
SYSTEM DESCRIPTION ..........................................................................................................................1
2.1
2.2
2.3
3.
Components ................................................................................................................................................... 1
Modes of Operation ....................................................................................................................................... 2
Applicable Standards ..................................................................................................................................... 3
PERFORMANCE CHARACTERISTICS ................................................................................................3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
4.
Power Ratings................................................................................................................................................ 3
Input (Converter) ........................................................................................................................................... 4
Input (Bypass)................................................................................................................................................ 4
Output ............................................................................................................................................................ 4
Environment .................................................................................................................................................. 5
Reliability ...................................................................................................................................................... 6
Maintainability............................................................................................................................................... 6
System Battery............................................................................................................................................... 6
FUNCTIONAL DESCRIPTION................................................................................................................7
4.1
4.2
4.3
5.
Converter ....................................................................................................................................................... 7
Inverter ........................................................................................................................................................ 10
Bypass and Static Switch ............................................................................................................................. 11
OPERATOR CONTROL PANEL ...........................................................................................................12
5.1
5.2
5.3
5.4
Operator Controls ........................................................................................................................................ 12
Remote Operation ........................................................................................................................................ 13
Mimic Bus Display ...................................................................................................................................... 13
Microprocessor Interface/Diagnostics ......................................................................................................... 13
6.
CONTROL LOGIC POWER...................................................................................................................15
7.
UPS STATUS INTERFACING ................................................................................................................15
7.1
7.2
7.3
7.4
8.
User Selectable Output Contacts.................................................................................................................. 15
User Selectable Input Ports.......................................................................................................................... 16
RS232C/RS485 Communication ................................................................................................................. 16
Waveform capture trace information ........................................................................................................... 16
OPTIONAL EQUIPMENT ......................................................................................................................17
8.1
9.
Remote Status Alarm Panel (RSAP)............................................................................................................ 17
MECHANICAL DESIGN.........................................................................................................................17
9.1
9.2
9.3
9.4
9.5
9.6
10.
Enclosure ..................................................................................................................................................... 17
Serviceability ............................................................................................................................................... 17
Ventilation ................................................................................................................................................... 17
Printed Circuit Boards ................................................................................................................................. 18
Bussbar ........................................................................................................................................................ 18
Paint Color................................................................................................................................................... 18
FACTORY TEST REPORT .................................................................................................................18
1.
SCOPE
1.1
The System
This specification describes an on-line, three phase, solid-state, uninterruptible power
system, hereafter known as the UPS. The UPS shall operate utilizing the existing power
distribution system to provide a high quality, reserve source of power to electronic
equipment loads. The system shall consist of a converter, system battery, solid-state
inverter, automatic static bypass transfer circuit and integral maintenance bypass circuit.
2.
SYSTEM DESCRIPTION
2.1
Components
The UPS shall be comprised of the major components listed below:
2.1.1 Insulated Gate Bipolar Transistor/Intelligent Power Module (IGBT)
Converter Section.
2.1.2 Insulated Gate Bipolar Transistor/Intelligent Power Module (IGBT) Inverter
Section.
2.1.3 Digital Signal Processor (DSP) using pulse Width Modulation (PWM) control for
Direct Digital Control (DDC) of all UPS control and monitoring functions.
2.1.4 Static bypass switch sized to provide fault clearing.
2.1.5 Standard features:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
2033D Specification
Transistorized PWM IGBT Converter.
Transistorized PWM IGBT Inverter.
UPS output isolation transformer.
DSP based fault memory and diagnostics.
DSP based menu controlled operation.
EMI filters on Input, Bypass and Output.
Surge Suppression on Input and Bypass circuit.
Active mitigation of reflected input harmonics (no passive filters).
Active control of output voltage distortion (no passive filters).
Internal DC Disconnect and Fuse protection.
Input AC Disconnect and Fuse protection.
Static Bypass Disconnect.
1
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Internal Maintenance Bypass Switch (MBS).
Automatic input current walk-in.
Remote operation (Start/Stop of Inverter).
Automatic UPS restart and load pick-up (after system battery depleted; AC
restored).
Programmable external customer contacts (C-Type) dry contacts.
RS232C communication for “DiamondLink” monitor software.
Web monitor (RJ45)
Touch screen person-machine interface.
Remote and Local Emergency Power Off (EPO).
Battery self test
Battery Temperature Compensation
2.1.6 Optional features:
a.
b.
c.
d.
2.2
Remote monitor panel.
Input Isolation Transformer.
External Maintenance Bypass Switch.
Two parallel redundant system.
Modes of Operation
The UPS shall be designed to operate continuously at rated capacity as an on-line,
automatic system in the following modes:
2.2.1 Normal - The inverter continuously supplies AC power to the critical load. The
converter converts commercial AC power to regulated DC power which then
serves as the inverter input and, simultaneously, as a float charge input to the
storage battery.
2.2.2 Emergency - In the event of a commercial AC power failure, the inverter shall
derive its input from the system battery, thus providing uninterrupted power to the
critical load. This transition shall be accomplished without any switching or
coupling, and with no interruption of power to the critical load from either a failure
or restoration of the commercial AC power.
2.2.3 Recharge - Subsequent to restoration of commercial AC power, the converter shall
automatically reactivate and provide DC power to the inverter, simultaneously
recharging the system battery. This occurs automatically and without interruption
to the critical load.
2.2.4 Bypass - In the event that the UPS must be taken off line due to an overload
condition or UPS failure, the critical load shall be transferred to the bypass source
via the static switch without interruption of power to the critical load. The static
switch shall only be utilized for automatic emergency transfers. A re-transfer from
bypass to inverter shall be performed automatically in overload conditions. A re-
2033D Specification
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transfer shall be inhibited if satisfactory synchronization of the inverter and bypass
is not accomplished.
2.2.5 Two (2) Parallel Redundant / Non-Redundant Mode (option) - If one of the UPS
modules are taken off line, but the load demand does not exceed the capacity on
the UPS’s remaining on-line, the system shall continue to furnish conditioned
power from the inverter and operate in a Non-Redundant mode. Emergency and
Bypass Modes shall operate as described above.
2.2.6 Remote - The UPS logic shall be capable of remote operation allowing activation
of the following functions from a remote location:
a.
b.
c.
Inverter stop.
Inverter start.
Emergency power off.
2.2.7 Maintenance Bypass – The UPS system shall be equipped with an internal MBS to
allow safe and reliable maintenance of the UPS. The MBS shall be of the MakeBefore-Break, “Zero Energy” type to ensure maximum load reliability and
personnel safety.
2.3
Applicable Standards
The UPS has been designed in accordance with, and complies to, the following standards:
a.
b.
c.
d.
e.
f.
UL 1778 and CSA 22.2 (cUL equivalent).
IEC, Semiconductor Converter Standards (#62040-3.2.16).
IEEE 587, ANSI C62.41
EMI Compatibility: FCC Title 47, Part 15, Subpart B
ISO 9001 Quality Assurance program.
This specification.
3.
PERFORMANCE CHARACTERISTICS
3.1
Power Ratings
The UPS output capacity shall be:
XXX kVA/ XXX kW @ .8 pf lagging
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3.2
Input (Converter)
3.2.1 Nominal input voltage: 480V, 3 phase, 3 wire.
3.2.2 Input voltage range: +10%, -15% at 100% load. –15% to –30% at derating load.
3.2.3 Input frequency and range: 45.4 Hz to 65Hz.
3.2.4 Input power factor: .98 lagging typical at 100% load; 0.97 lagging typical at
50 % load.
3.2.5 Converter input current THD: 4% typical at 100% load. 7% typical at 50%
load.
3.2.6 Converter walk-in time: 10 seconds.
3.3
Input (Bypass)
3.3.1 Nominal input voltage: 480V, 3 phase, 3 wire.
3.3.2 Input synchronization voltage range: r 10% of nominal.
3.3.3 Input frequency tracking range: 60 Hz r 5% maximum.
The synchronous range shall be selectable 1% to 5% in increments of 1%.
3.3.4 Magnetized sub-cycle inrush current: typically 9 times normal full load current.
3.4
Output
3.4.1 Nominal output voltage: 480, 208 V, 3 phase, 4 wire.
3.4.2 Nominal dynamic voltage regulation:
a. r 1% for balanced loads.
b. r 2% for 100% unbalanced loads.
3.4.3 Manually adjustable output voltage: r 5% range.
3.4.4 Voltage transient response: Voltage transient response shall not exceed the
following, and shall recover to within nominal voltage regulation limits within
16.6 msec:
a. r 3% for a 100% load step.
b. r 1% (loss or return of AC input).
c. r 3% (inverter œ bypass).
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3.4.5 Output frequency (inverter synchronous): 60 Hz (tracks frequency of static bypass
source).
3.4.6 Output frequency slew rate (inverter synchronized to static bypass): 1 Hz/second
to 10Hz/second (selectable).
3.4.7 Free running output frequency (on battery or asynchronous): 60 Hz +/- 0.05%.
3.4.8 Output voltage harmonic distortion:
a.
b.
Typically 2% THD with 100% linear load.
Typically 5% THD with 100% non-linear load.
3.4.9 Load power factor range: 0.7 lagging to 1.0 within kW rating of UPS.
3.4.10 Output overload capability:
105% to 125% for 10 min. (voltage regulation maintained).
126% to 150% for 1 min. (voltage regulation maintained).
3.4.11 Output fault clearing: typically 1000% for 1 cycle (utilizing bypass source).
3.4.12 The inverter shall have an output contactor to isolate the inverter from the load and
bypass source.
3.5
Environment
The UPS shall be capable of withstanding any combination of the following external
environment conditions without mechanical damage, electrical failure or degradation of
operating characteristics.
3.5.1 Efficiency:
UPS capacity
(kVA)
30
50
80
Battery to AC (%)
(100% Load)
89
90
91
AC to AC (%)
(100% Load)
90
90
90
3.5.2 Ambient operating temperature range: 0 to +40 degrees °C (no derating required).
3.5.3 Recommended operating temperature range: +15 to +25 degrees °C.
3.5.4 Storage temperature
2033D Specification
(non-operating): -20 to +70 degrees °C.
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3.5.5 Relative humidity
a.
b.
Maximum operating range: 5% to 95% (non-condensing).
Recommended operating range: 30% to 90%.
3.5.6 Altitude: Operating to 9,000 feet No derating.
3.5.7 Heat dissipation (at 100% load).
UPS capacity
(kVA)
30
50
80
kBTU/hr
kW
9.1
15.2
24.3
2.7
4.4
7.1
3.5.8 Acoustical noise level:
65 dBa @ 1 meter
3.6
Reliability
The UPS equipment reliability shall be represented in terms of theoretical Mean-TimeBetween-Failures (MTBF). The UPS manufacturer shall, as a minimum, provide the
following capability. (Based on MIL-STD-217F)
3.6.1 Total single module UPS system output (includes reliability of bypass circuit):
229,000 MTBF hours.
3.6.2 Single module UPS operation (represents UPS module operation only):
32,000 MTBF hours.
3.7
Maintainability
MTTR of the UPS shall not exceed 1 hour including time to replace components.
3.8
System Battery
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The system battery shall be sized to provide the specified back-up time to the inverter
when the UPS is supplying 100% rated load. The battery shall be of the VRLA, Flooded
Lead Acid or Nickel Cadmium types.
3.8.1 VRLA Battery System Example (EXAMPLE using 50 kVA UPS)
a. The battery system shall include a DC cable landing box equipped with
sufficient landing provisions to interface the UPS’ DC input to battery cabinets.
b. The battery shall be capable of operating in an average ambient temperature of
25 qC, with excursions of 16 qC to 32 qC and shall be sized as follows:
1. Float voltage: 540 VDC
(2.25 to 2.27 V/cell)
2. Final voltage: 400 VDC
(1.67V/cell)
4.
FUNCTIONAL DESCRIPTION
4.1
Converter
4.1.1 General
The Converter shall convert the incoming AC power into regulated DC power to
supply the inverter input and system battery. The Converter shall utilize the
following technologies:
a.
b.
c.
Solid state PWM controlled IGBT power transistors switching at 8
kHz. Switching shall be defined as IGBT turn on and turn off rate.
Doubling of frequency at inverter output shall not be considered as the true
switching frequency.
Input Power: Rated kVA at 1:1 ratio.
DSP based control logic.
4.1.2 Input Current Limit
The Converter logic shall provide input current limiting by limiting the AC input
current. The line-side current transformers shall be employed as a means of
sensing the current amplitude. The Converter logic shall also be capable of
providing auxiliary current limiting when the logic is signaled to do so via an
external dry contact closure (e.g.; UPS fed from motor generator). It shall also
provide sufficient capacity to provide power to a fully loaded inverter while
simultaneously recharging the system battery to 90% of full capacity within 10
times the discharge time. The DC output current limit values are as follows:
2033D Specification
7
a.
b.
c.
Converter input current (maximum) 115% of nominal.
Converter input power (maximum) 100% of rated kVA.
Converter input current (aux.) 10%-150% variable.
4.1.3 Battery Charge Current Limit
The Converter logic shall provide DC battery current limiting for controlled
battery charging. The battery current sensing shall be independent of the Converter
DC output current sensing to provide precise battery recharging. The following
battery current limits shall be provided as a minimum:
a.
b.
c.
Primary battery charge current limit: 1% to 40% (adjustable) of battery Ah
rate.
Second step battery charge current limit: 1% to 40% (adjustable) of battery
Ah rate. Activated by a dry contact signal.
Maximum charge kW: 30% of rated kVA at low load.
4.1.4 Voltage Regulation
The Converter output voltage shall not deviate by more than r 1% RMS due to the
following conditions:
a.
b.
c.
From 0 to 100% loading.
Converter input variations of voltage and frequency within the limitations
set in section 3.2.
Environmental condition variations within the limitations set in section 3.5.
4.1.5 Reflected Harmonic Content
The Converter shall not produce more than 4% reflected current distortion into the
Converter input utility source when nominal voltage and rated load is applied.
Typically, the amount of reflected current distortion shall not exceed 7% THD at
50 % load.
4.1.6 Automatic Input Walk-in
The Converter logic shall employ circuitry to allow a delayed and timed ramping
of input current. Subsequent to energizing the Converter input, the ramping of
current shall be delayed by a maximum of 10 second. Upon starting the walk-in
process, the ramping of current shall be timed to assume the load gradually within
5 through 30 seconds (every 1 second selectable). This function shall be supplied
as standard equipment.
4.1.7 Input Overload Protection
AC input contactor and fuses shall provide Converter input overload protection.
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4.1.8 Equalize Charge Timer
a) Manual Equalize Charge Timer
The UPS logic shall provide a 100 hour maximum electronic manual equalize
charge timer. The timer circuit, once activated, shall provide a high rate equalizing
charge voltage to the system battery for the selected time. The circuit shall also be
capable of manual activation or deactivation via the LCD touch panel
b) Automatic Equalize Charge Timer
Once equalizing voltage level is achieved as stated by the battery manufacturer
(typically .04 to .08 VDC/cell higher than the specified float level) for a period of
10 minutes, the Converter output voltage shall return to the specified float voltage
(typically 2.25 to 2.28 VDC/cell).
4.1.9 Battery Temperature Compensation
The UPS shall have, as standard equipment, a battery temperature compensation
function allowing the Converter voltage to fold-back to a safe value in the event
the battery temperature reaches a predetermined dangerous level.
4.1.10 Step load (0-100%) changes
100% step load changes shall use ONLY the Converter to supply power to the
inverter. The batteries SHALL NOT be cycled at any time during these step
load changes.
4.1.11 DC Ripple voltage
The DC buss rms ripple voltage shall be less than 1% of the UPS’ nominal DC
voltage level at 100% load and with no battery connected. This shall provide for
maximum battery life.
4.1.12 Battery Self Test (DiamondSense)
For a short duration of time, a small power discharge from the battery is
automatically carried out. From this small power discharge, the Mitsubishi UPS
evaluates the degradation of the battery. The following advantages are therefore
achieved:
z
z
z
2033D Specification
The DiamondSense Battery Self-Test Function can be performed even when the
load is on the inverter
Due to the short duration small power discharge there is no effect to the battery
life expectancy
The small power discharge has negligible effect on the overall battery back up
time. The small power that is discharged by the battery will quickly be
replenished
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4.2
Inverter
4.2.1 General
The Inverter shall generate AC power that is derived from DC power supplied
from the Converter or the system battery. The Inverter shall be capable of
providing rated output as stated in section 3.4 while operating from any DC
voltage within the battery operating range. The Inverter shall utilize the following
technologies:
a.
b.
Solid state PWM controlled IGBT power transistors switching at 8 kHz.
Switching shall be defined as IGBT turn on and turn off rate. Doubling of
frequency at inverter output shall not be considered as the true switching
frequency.
DSP based control logic.
4.2.2 Voltage Regulation
The Inverter output voltage shall not deviate by more than +/- 1% RMS due to the
following steady state conditions:
a.
b.
c.
0 to 100% loading.
Inverter DC input varies from maximum to minimum.
Environmental condition variations within the limitations set in section 3.5.
4.2.3 Frequency Control
The Inverter output frequency shall be controlled by an oscillator internal to the
UPS module logic. It shall be capable of synchronizing to an external reference
(e.g.; the bypass source) or operating asynchronously. The oscillator shall
maintain synchronization with the external reference within the limitations set in
section 3.3.3. A message located on the touch screen shall identify the loss of
synchronization. Synchronization shall be maintained at 60 Hz r 0.05%
continuously. The Inverter output frequency shall not vary during steady state or
transient operation due to the following conditions:
a.
b.
c.
0 to 100% loading.
Inverter DC input varies from maximum to minimum.
Environmental condition variations within the limitations set in section 3.5.
4.2.4 Output Harmonic Distortion
The Inverter output shall limit the amount of harmonic content to the values stated
in section 3.4.8. The use of excessive or additional filtering shall not be required
to limit the harmonic content thus maintaining a high level of efficiency, reliability
and original equipment footprint.
4.2.5 Output Overload Capability
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The Inverter output shall be capable of providing an overload current while
maintaining rated output voltage to the values stated in section 3.4.10. A message
indicating LED located on the control panel shall illuminate to identify this
condition. If the time limit associated with the overload condition expires or the
overload is in excess of the set current amplitude, the load power shall be
transferred to the bypass source without interruption.
4.2.6 Inverter Current Limit
The Inverter output shall also be limited to 150% of rated load current. The two
sensing locations shall operate separately and independently thus providing
redundancy and, in the event of a failure, prevent unnecessary damage to power
transistor components/fuses. Load current above 150% shall cause an immediate
transfer of the load to the bypass source for fault clearing.
4.2.7 Inverter Overload Protection
The Inverter AC output shall utilize electronic current limiting for overload
conditions. The Inverter shall utilize a contactor to isolate its output from the
critical bus.
a.
b.
The Inverter fuses shall be the fast acting semiconductor type to clear
faults on the AC buss.
The Inverter output isolation contactor shall be located internal to the UPS
module and shall be controlled by the internal UPS module system logic.
4.2.8 Line Drop Compensation
The inverter shall be provided with circuitry such that its output voltage rises
linearly with output current. The rise shall be required to achieve this function, and
it shall not interfere with other requirements of this specification. The purpose of
this feature is to compensate for varying line drop voltage between the inverter and
the critical load.
4.3
Bypass and Static Switch
4.3.1 General
A bypass circuit shall be provided as an alternate source of power other than the
inverter. A high speed SCR switch shall be used to assume the critical load during
automatic transfers to the bypass circuit. The static switch shall derive power from
an upstream bypass feed contactor internal to the UPS module. The bypass circuit
shall be capable of supplying the UPS rated load current and also provide fault
clearing current. The UPS system logic shall employ sensing which shall cause
2033D Specification
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the static switch to energize immediately thus providing an uninterrupted transfer
to the bypass source when any of the following limitations are exceeded:
a.
b.
c.
d.
e.
Inverter output undervoltage or overvoltage.
Overloads beyond the capability of the inverter.
DC circuit undervoltage or overvoltage.
Final voltage of system battery is reached (bypass source present and
available).
System failure (e.g.: logic fail, fuse blown, etc.).
4.3.2 Automatic Re-transfers
In the event that the critical load must be transferred to the bypass source due to an
overload, the UPS system logic shall monitor the overload condition and, upon the
overload being cleared, perform an automatic re-transfer back to the inverter
output. The UPS system logic shall only allow a re-transfer to occur three times
within a one minute period. Re-transfers shall be inhibited on the fourth transfer
due to the likely hood of a recurring problem at the UPS load distribution. The retransfer of load to the inverter shall also be inhibited due to the limitations set in
section 3.3. All retransfers will be inhibited if the inverter and static bypass line
are not synchronized.
4.3.3 Manual Transfers
The UPS shall be capable of transferring the critical load to/from the bypass
source via the front control panel. . If performing manual transfers to inverter or
automatic retransfers, the UPS system logic shall force the inverter output voltage
to match the bypass input voltage and then parallel the inverter and bypass sources
providing a make-before-break transition allowing a controlled walk-in of load
current to the inverter. Manual transfers will be inhibited if the inverter and static
bypass line are not synchronized.
4.3.4 Static Switch
The static switch shall be a high speed transfer device comprised of naturally
commutated SCR's.
5.
OPERATOR CONTROL PANEL
5.1
Operator Controls
The operator control panel shall employ the use of a touch screen interface which allows
lock-out of all UPS control functions for security (the Emergency Power Off function shall
not be locked-out). The operator interface shall provide the following:
2033D Specification
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a.
b.
c.
d.
e.
5.2
UPS start-up procedure
UPS shutdown procedure
Emergency Power Off (EPO)
Audible alarm silence
System status levels
Remote Operation
Certain UPS controls shall, as standard equipment, be capable of being operated from a
remote location. The remote functions are provided for user convenience and shall be
activated via, user supplied, external dry contact switches connected at the user interface
wiring terminal. The following remote control functions shall be provided as a minimum:
a.
b.
c.
5.3
Inverter start.
Inverter stop.
Emergency Power Off.
Mimic Bus Display
A mimic bus identifying the internal UPS power circuit, contactors/circuit breakers,
operating status and fault conditions shall be provided on the touch screen interface. The
following display shall be included:
a.
b.
c.
d.
e.
f.
g.
h.
5.4
Converter operation.
Battery operation.
Converter on/off.
Inverter on/off.
Inverter synchronized with bypass.
Load on inverter.
Load on bypass.
Equalize charge on.
Microprocessor Interface/Diagnostics
5.4.1 Microprocessor Controlled Operator Guidance
The UPS’ microprocessor logic shall, as standard equipment, provide menu-driven
operator instructions detailing the operation of the UPS system. The instruction
menu shall be accessible via a touch screen display located at the control panel.
2033D Specification
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The microprocessor shall monitor each step, thus prompting itself to the next step
of the instructions. The following instructions shall be available as a minimum:
a.
b.
c.
d.
e.
f.
Inverter stop.
Inverter start.
UPS shutdown.
UPS startup
Transfer of load to static bypass.
Equalize charge to system battery.
5.4.2 Microprocessor Controlled Metering
All meters shall be digitally displayed having an accuracy of 1% or better. The
following parameters shall be available for display:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
Converter input voltage (A-B phases)
Converter input frequency
Battery voltage
Battery charging/discharging current
Battery capacity remaining during power failure conditions
Bypass input voltage (A-B phase)
Output voltage (all phases including line-line and line-neutral)
Output frequency
Output current in RMS Amps and % Amps (all phases including line and
neutral)
Load Effective Power (Real, kW)
Load Power factor
5.4.3 Microprocessor Controlled Diagnostics
The UPS shall provide microprocessor controlled diagnostics capable of retaining
fault alarms along with metering parameters in the event of a UPS failure. The
microprocessor memory data shall be viewed via an LCD display located at the
control panel. The following alarm/status information shall be provided as a
minimum:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
2033D Specification
AC Input Contactor Condition (Open or Closed)
Converter Input out of Range
Converter Operation
Converter Supplying DC Power
DC (Battery) Contactor Condition (Open or Closed)
Battery Operation
Battery Low Voltage
Battery Depleted
Battery Temperature Abnormal
Battery Charge/Discharge Operation
Equalize Charge Activated
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6.
Inverter Operation
Inverter Stop due to Overload Condition
Inverter Running Synchronously
Inverter Running Asynchronously
Inverter Output Contactor Condition (Open or closed)
Output Overload
Remote Start/Stop Enabled
Remote Operation
Static Bypass Input out of Range
Load on Inverter
Load on Static Bypass
Minor Fault
CONTROL LOGIC POWER
The UPS control logic power supply shall employ a redundant design utilizing the
UPS utility input, the Bypass input and the Inverter output.
7.
UPS STATUS INTERFACING
7.1
User Selectable Output Contacts
The internal UPS logic shall provide, as standard equipment, a programmable one (1) set
of nine (9) normally open and normally close dry contact outputs to allow user interfacing
of the UPS operating status. The available parameters are identical to the alarm and status
information schedule itemized from the following parameters:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
2033D Specification
Minor Fault
Load on Inverter
Load on Bypass
Battery Operation
Converter Operation
Battery Low Voltage
Output Overload
AC Input out of Range
Static Bypass Input out of Range
Battery Depleted
Battery Temperature Abnormal
Battery Equalizing charge
Inverter Running Synchronously
15
14.
15.
16.
17.
7.2
Inverter Running Asynchronously
Minor Alarm
Total Alarm (Minor, Major and Alarm)
Remote operation enable
User Selectable Input Ports
The UPS shall have, as standard equipment, nine (9) selectable input ports. The user can
select from the following parameters:
1.
2.
3.
4.
5.
6.
7.
8.
9.
7.3
Remote Start
Remote Stop
Battery Temperature Abnormal
Power Demand
Another UPS Converter Operation
Asynchronous Command
Charger Stop
Second Step Battery Charge Current Limit
Battery Equalizing Charge
RS232C/RS485 Communication
The UPS shall have, as standard equipment, an RS232C/RS485 smart port allowing the
user to interface the UPS status information to a host computer. “DiamondLink”
monitoring software, or equivalent, shall be available to support the specified operating
system. Field installed, and field tested RS232C/RS485 additions shall not be accepted.
7.4
Waveform capture trace information
Upon UPS failure, a trigger will initiate capture of UPS Module Waveform, logic and
control signals. The capture duration will be for 10 cycles, 5 cycles pre trigger and 5 cycles
post trigger. The sampling frequency shall be 7.2kHz, therefore a total of 120 samples per
cycle will be taken. The captured data can be downloaded to a PC and displayed on
Mitsubishi Electric Software. The Software allows selection of UPS Module Waveform,
logic and control signals for display and zoom functions. Waveform capture information
assists service personnel for troubleshooting and undertaking UPS Module failure root
cause analysis
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8.
OPTIONAL EQUIPMENT
8.1
Remote Status Alarm Panel (RSAP)
The UPS manufacturer shall offer a Remote Status Alarm Panel which shall not allow any
control over the UPS. The RSAP shall have, as standard equipment, a battery backup
feature allowing it to continue monitoring UPS status conditions during power
outage situations. The RSAP shall act only as an annunciation panel providing the
following alarms/indications as a minimum:
a.
b.
c.
d.
e.
f.
g.
Converter ON
Load on Inverter
Load on Bypass
UPS Failure
Output Overload
UPS in battery back-up mode
Low battery while in back-up mode
9.
MECHANICAL DESIGN
9.1
Enclosure
The UPS shall be equipped with standard forklift provisions to allow ease of installation
using conventional lifting/moving equipment. All UPS enclosures shall require a special
tool or screw driver to allow internal access.
9.2
Serviceability
The UPS shall have front access only for maintenance or service. Side access or rear
access shall not be accepted. The UPS shall be designed such that its rear can be pressed
against a back wall and its sides can be pressed against side walls.
9.3
Ventilation
Forced air cooling shall be provided to allow all components to operate within their rated
temperature window. Thermal relays, using a latched contact which is capable of being
reset, shall be used as overload protection to all cooling fans. Each fan shall employ a
separate thermal relay. All air inlets use washable air filters that shall be removable from
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the front of the UPS without exposure to any electrical hazard. Air filters shall be door
mounted to prevent floor dust from being sucked into the unit. Bottom mount air filters
shall not be accepted.
9.4
Printed Circuit Boards
All printed circuit boards shall be conformally coated against corrosive vapors and to
hermetically seal them.
9.5
Bussbar
All bussbar used for conductivity within the UPS shall be designed with COPPER
ONLY (Aluminum not acceptable)
9.6
Paint Color
Munsell 5Y7/1.
10.
Factory Test Report
All UPS units shall come equipped with one (1) factory test report included in the UPS.
The factory test report shall include the following:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
Series/kVA
Serial Number
Date of test
Approved by/Inspected by/Tested by
Inspection of Construction
Checking of wiring (Black/Red marking on each connection point)
Grounding Continuity
Insulation Strength Test
Control Circuit Operation
Measurement of Steady State Characteristics (Voltage/current/efficiencies)
Transient Characteristics (0-100% step load test without batteries/voltage
fluctuation)
l. Overload testing
m. Transfer Switch operation
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