Nghiên cứu vận hành nguồn delta ES48 200 UBA03 and ES48 150 UBA04 IOM

untitled www deltaww com DELTA DPR series Power System Installation, Operation and Maintenance Manual Ericsson Series IOM PN 5011236202 2008 12 19 R02 Ericsson Series Power System User Manual Ericsso.

U SING T HIS M ANUAL

This manual contains specifications and instructions to properly install and maintain the DPR-2700 or DPR-2000 power system Component specifications and drawings are contained in this manual

Included in this manual is the operation and maintenance of the Control

Supervisory Unit (CSU), DPR-2700 or DPR-2000 Switch Mode Rectifier (SMR),

DC Distribution Shelf, Low Voltage Disconnect Switch (LVDS), system status and alarms, troubleshooting and system maintenance

This article outlines the essential step-by-step procedures for installation and turn-up, including detailed settings and adjustments for all equipment parameters It also covers the necessary confirmations, system monitoring, and operational maintenance procedures to ensure optimal performance.

Warnings are printed in bold lettering and alert the installation or maintenance craftsperson of a potential hazard to either or the craftsperson if the warning advisement is not followed.

S AFETY N OTICE

Products are not liable for any hazards incurred by not following proper safety procedures Installation, Operation and maintenance personnel should always follow these safety rules:

1 The equipment is designed for installation and use in areas designated as

"Restricted Access Location" only Where the rack will be secured to a concrete or other non-combustible floor

2 Input terminal for R, S, T and N- Listed (XCFR2), Dinkle International Co., Ltd type DK10, rated 600Vac, 60A Polarity symbols provided adjacent to each terminal for models ES48/120-UDAXX and ES48/150-UBAXX

3 Input terminal for PE- Listed (XCFR2), Dinkle International Co., Ltd type GK10, rated 600Vac, 40A Polarity symbols provided adjacent to each terminal for models ES48/120-UDAXX and ES48/150-UBAXX

4 Input terminal for R, S, T and N- Listed (XCFR2), Dinkle International Co., Ltd type DK35, rated 600Vac, 115A Polarity symbols provided adjacent to each terminal for models ES48/300-UBAXX and ES48/400-UBAXX

5 Input terminal for PE- Listed (XCFR2), Dinkle International Co., Ltd type GK35, rated 600Vac, 80A Polarity symbols provided adjacent to each terminal for models ES48/300-UBAXX and ES48/400-UBAXX

6 Input terminal for R, S, T and N- Listed (XCFR2), Dinkle International Co., Ltd type DK16, rated 600Vac, 70A Polarity symbols provided adjacent to each terminal for models ES48/200-UBAXX

7 Input terminal for PE- Listed (XCFR2), Dinkle International Co., Ltd type GK16, rated 600Vac, 63A Polarity symbols provided adjacent to each terminal for models ES48/200-UBAXX

According to UL and NEC standards, an insulated grounding conductor, matching the size and insulation characteristics of the supply conductors, must be installed with the branch circuit that powers the unit or system This grounding conductor should be colored green, which may include yellow stripes.

The grounded conductor must be connected to the earth at the service equipment or, if sourced from a separate derived system, at the supply transformer or motor-generator set.

All AC receptacles near the power system must be of the grounding type, with grounding conductors for each receptacle connected to the earth ground at the service equipment.

When handling rectifiers, it is crucial to exercise caution by ensuring that the power switch is turned off before installing or removing any rectifier modules Always switch off the power to prevent any potential hazards when inserting a rectifier module from the shelf.

Prior to system activation, it is essential to verify the AC input frequency and voltage, ensuring that the AC breaker is appropriately rated and suited for the application, while also confirming that all environmental conditions specified are satisfied.

13 A readily accessible disconnect device shall be incorporated in the building installation wiring

Protective systems or devices in primary circuits must be adequately numbered and strategically positioned to effectively detect and interrupt overcurrent in any potential fault current paths, such as line-to-line, line-to-neutral, line to protective earth conductor, or line to protective bonding conductor.

In electrical systems utilizing multiple line conductors for a load, it is essential that if a protective device interrupts the neutral conductor, it must also disconnect all other supply conductors Consequently, single pole protective devices are not suitable for these scenarios.

16 Protective devices in three-phase equipment:

17 The system has passed stringent system testing prior to shipment To avoid electrical shock, the system requires a single ground point permanently connected to earth ground

18 Recommended room ambient is 50 degrees C

19 To avoid electrical hazards, the covers must not be removed on the system or any component including the rectifier and DC-DC converter

20 DC output & battery breakers must be replaced with approved replacement circuit breakers meeting the original design specification

21 All AC connections must be made per the latest issue of the National Electrical Code and must conform to all local codes.

E NVIRONMENTAL

P RODUCT D ESCRIPTION

The DPR-2700 and DPR-2000 Power systems feature modular rectifiers, a Control and Supervisory Unit (CSU), and a DC Distribution shelf Each shelf can accommodate up to four rectifiers (200A), with a maximum of two shelves allowed per system, which includes the CSU This system operates on a nominal input of 3 Phase + N 380Vac and delivers an output of -48 VDC, effectively powering loads while ensuring batteries remain fully charged.

P RODUCT M AIN F EATURES

• User Friendly LCD Interface (128*64 dots display)

• Hot Swappable 2700 or 2000 Watts rectifiers, wide range PFC input

(90~275Vac good for unstable utility environment)

• Light Weight Plug-in Modules for Simple Installation and Maintenance

• High Power Density Saves Valuable Floor space

• All rectifier modules are front accessible

• Active Power Factor Correction (> 99 PF)

• Temperature Compensation Float Voltage Control for VRLA Batteries

• Front Access for Simplified Operation and Maintenance

• Intelligent remote shelf monitoring and control (Optional RMS software function and Modem function, Via RS-232 The RMS user guide, refer to the separate RMS manual)

• Battery temperature compensation voltage control

C ONFIGURATION

CSU: Delta New Smart CSU

S YSTEM S PECIFICATION

Shelf Capacity 1 ~ 4 rectifier per shelf

Control & Supervisor Unit LCD Display: 128*64 characters

LED Indicator: 3 Remote Monitoring and Control By RMS software (Use RS232 Interface)

Humidity 0~95% Relative Humidity, Non-Condensing

S YSTEM O UTLOOK

Two types of the cabinet, the width and the depth are all the same, but the heights are different, the height is 1.2M and 2.0M

ES48/120-UDA01 S48/120-UDA02 ES48/120-UDA04

ES48/120-UDA03 ES48/120-UDA05 ES48/150-UBA02

ES48/150-UBA03 ES48/150-UBA04 ES48/200-UBA01

S YSTEM C ONFIGURATION & D IMENSIONS

Dimensions (WxDxH) 1 23.62 in x 23.62 in x 47.24 in /600mm x 600mm x 1200mm

2 23.62 in x 23.62 in x 78.74 in /600mm x 600mm x 2000mm

S YSTEM S CHEMATICS

The following is the system schematics for ES48/400-UBA01, only an example for reference

T OOL R EQUIRED

The following tools are recommended for the system installation:

• Tweaker - Slotted screw driver blade size 09”× 02”

• Metric Socket Wrenches with Extensions

P RELIMINARY I NSPECTION

Prior to removing the system from the crate, note any damage to the crate

Remove the shelf from the crate and inspect the shelf for any dents or damage If any damage is noted, contact the carrier immediately.

B ASE M OUNT

Refer to the figure below for detail base mount template

1 Remove the most bottom battery tray

2 Tight 4 anchor bolts to fix the rack

3 Re-tight the battery tray

S YSTEM M OUNTING

The DC Distribution Shelf is delivered fully assembled, featuring rectifiers mounted on a 23” shelf Factory-made AC connections link the AC terminal to the rectifier shelf, ensuring seamless integration Additionally, all CSU communication and signal leads are connected through modular plugs, facilitating effective communication with the rectifiers.

When installing the shelf for the rectifier, ensure it is positioned at least 4 inches away from the wall at the back to facilitate proper ventilation Additionally, keep the front of the shelf unobstructed to allow for adequate airflow, installation, and maintenance It is essential to mount the shelf securely to the superstructure and floor according to the equipment engineering drawings provided by the customer.

M ODULE I NSTALLATION

In order to minimize the weight of system, all rectifier modules can be removed from the shelf and re-installed

1) Install rectifier modules into the shelf

Warning! Do not force the module into the slot If it does not slide in and connect easily, remove and re-seat the unit

2) Push both locker to lock position to lock the rectifier.

S YSTEM W IRING

The shelf comes fully assembled and all the connections are made at the factory There is no internal, shelf or module wiring required

All wiring connected to the breaker should use leads with striped ends It is essential to tighten the screws and ensure that all wires are securely inserted into the breaker terminal, leaving no wires or threads exposed to prevent short circuits Please refer to the figure below for guidance.

1 Remove the battery tray 2 Tight 4 anchor bolts 3 Re-tight the battery tray

DC G ROUNDING

To ensure safety and compliance, the DC ground should be securely connected to a permanent earth ground This connection is located at the top of the rack, marked as DC Ground For accurate installation, please refer to the accompanying figure for the correct grounding terminal location.

Recommended Lug: Two-hole Lug (Pitch: 1 inch)

Warning! Do not connect this terminal to AC power system neutral

AC I NPUT C ONNECTIONS

All AC cables are compatible with the shelf main terminal For models ES48/120-UDAXX and ES48/150-UBAXX, a tightening torque of 15.6 in-lb should be applied to the clamping screws of the field wiring terminal block, while a torque of 30.4 in-lb is required for other models.

ES48/200-UBAXX, 49.5 in-lb for models ES48/300-UBAXX and ES48/400-UBAXX Recommended wire: Refer to section 3.11

Warning! The shelf operates at AC voltages that can produce fatal electrical shock Installation and maintenance personnel must observe all safety precautions

Warning! Confirm the operating voltage before proceeding

Warning! The input feeder circuit breaker at the AC panel must be in the Off position before attempting to wire the shelf

Warning! Ensure all rectifier AC and DC breakers are in the off position.

DC D ISTRIBUTION C ONNECTIONS

Rating refer to section 2.5, 2.6 and this section

The system equipped with 2 LVDS (LVBD for battery, LVLD for non priority load distribution)

The rating of LVBD, LVLD, quantity of SMR and bus bar are relate to the maximum output of each system; refer to the description below

LVBD: 125A (equipped with 4 breaker positions)

LVLD: 125A (equipped with 8 breaker positions)

Priority Load: equipped with 3 breaker positions

NPL: NON Priority Load Distribution PL: Priority Load Distribution

Total system output (THEORY): LVBD side + LVLD side + Priority Load side ≦ 111A

Total system output (ACTUAL): LVLD side + Priority Load side ≦ 32A (Total rating of the battery breaker equipped in the system To avoid system shutdown when AC in is off)

The total system output, which includes both the LVLD side and the Priority Load side, must not exceed 120A This limit corresponds to the total rating of the LVBD integrated into the system Adhering to this guideline is crucial to prevent system shutdowns during instances when the AC input is turned off or when the output is below the total capacity of the SMR.

Total system output (ACTUAL): LVLD side + Priority Load side ≦ 125A (Total rating of the LVBD equipped in the system To avoid system shutdown when AC in is off)

The total system output must not exceed 200A, which is the combined rating of the LVLD side and the Priority Load side This limit is crucial to prevent system shutdowns when the AC input is off or when the total load is below the capacity of the SMR.

The total system output, which includes both the LVLD side and the Priority Load side, should not exceed 200A This limitation is based on the total rating of the LVBD integrated into the system Adhering to this guideline is essential to prevent system shutdowns during AC power outages or when the total capacity of the SMR is below this threshold.

The total system output, comprising the LVLD side and the Priority Load side, must not exceed 200A, which corresponds to the total rating of the LVBD integrated into the system This limitation is crucial to prevent system shutdowns during AC power outages or when the total capacity of the SMR is below the required threshold.

Total system output (ACTUAL): LVLD side + Priority Load side ≦ 250A (Total rating of the LVBD equipped in the system To avoid system shutdown when AC in is off.)

B ATTERY C ONNECTIONS

When connecting battery terminals, ensure the correct polarity is observed to avoid damage (see figure below) Prior to making the connection, remove any insulating material from the wire terminal The connecting wire must meet the specifications of a maximum current of 70A and a maximum voltage of 600Vdc.

R ECOMMENDED W IRING

The recommended wire size (AWG#) for each breaker, refer to the 60 °C column for copper wire and with at least 90° C insulation

B ATTERY A ND A MBIENT T EMPERATURE S ENSORS

Each shelf is equipped with two battery sensor cables labeled TB-1, which connect to connectors TB-1 and the Detection Module These cables facilitate the positive bus connections between the battery strings for -48 VDC, either among the inter-cell connections or between the battery cells, depending on whether the batteries are being installed or removed from the power shelf.

The Ambient Temperature Sensor, designated as TA, is pre-installed by the factory in an optimal location within the cabinet, ensuring it is free from the rectifier fan's airflow Customers do not need to install this sensor themselves.

Ambient Temperature Sensor TA is terminated to the back of the CSU to the connector labeled Ambient Temp

I NITIAL S TARTUP P REPARATION

Verify all connections prior to starting this section

Warning! Ensure the input AC circuit breaker located at the AC service panel is switched to the “Off” position

Warning! Confirm the operating voltage before proceeding

Warning! Ensure the frame ground is properly connected to a permanent earth ground connection

Warning! Ensure all the Load DC Circuit breakers located in the DC Distribution

Cabinet are switched to the “Off” position

Failure to follow this sequence may damage the rectifier.

N O L OAD S TART - UP

The shelf can be turned up without a load The start-up procedure is as follows:

1 Switch all DC circuit breakers (load) to the “Off” position

2 Make sure battery is not connected to the system Battery Bus

3 Check the CSU for alarm status.

B ASIC F UNCTIONAL V ERIFICATION

After shelf start-up, basic functional verification should proceed

Check the monitor of CSU display.

P ARAMETER S ETTINGS

Most parameters are factory pre-set and detailed in the Test Report included with each shelf This section outlines the reasons why some parameters may require adjustments.

The factory presets for Float and Equalize voltages are documented in the shelf Test Report The CSU manages the system settings, taking precedence over individual rectifier configurations To implement a different voltage value, it is essential that both SMR and CSU settings match.

The CSU regulates the system's current limit threshold by tracking the total load, the number of operational rectifiers, and the battery current In the case of a DC overload, a designated parameter establishes a current limit that supersedes the individual limits set for each rectifier.

If the CSU fails, the system will change current limit at the rectifier setting

The CSU uses this parameter to scan for rectifier status and alarms

This parameter is used with the parameter “Total Number of SMRs” and directs the CSU to scan the assigned slots for rectifier status and alarms

Battery capacity must reflect the rating of the installed battery Refer the battery manufacture specification for the rated capacity.

DC L OAD C ONNECTIONS

Warning! Basic Functional Testing should be completed prior to the load being applied

Warning! Switch all DC circuit breakers to the “OFF” position

A Connect the positive load cable to the Ground Bus

B Connect the negative load cable to the DC breaker lug

C Switch the DC circuit breakers or Load Fuse to the “ON” position

Ensure that the DC circuit breaker lugs are tightened correctly to guarantee proper contact with both the load cable and the trip sense wire Neglecting to torque the DC circuit breaker lugs adequately can lead to heat damage.

F UNCTIONALITY C HECK

Control and supervisory functional testing can be performed at the CSU after the Basic Functional Testing is completed and the DC Load is connected

To ensure optimal equipment performance, check the status on the Main Page and press the designated button Verify that voltages, current, and temperature are within normal operating ranges Additionally, use a multi-meter to compare rectifier voltages by taking measurements at the front of each rectifier.

Verify the Alarm display at the CSU to ensure that all alarm conditions are resolved

D ESCRIPTION

Power system controller Delta New Smart CSU

LED (Major, Minor, EQU) Push button 4 push buttons on the CSU LCD display They are use to control the power system

DC information Rectifier information Battery Information

DC load information Environment detection Parameter Setting: System output parameter setting

Alarm threhold setting Alarm configuration setting System relay setting Others: Remote management

Event log Efficiency management Battery discharge test function

Method: RS-232 cable (9 pin), Internet/Intranet

SW Interface: (Optional) Delta Remote Management Software

Network Management Software Hardware Interface: (Optional) RS-232

Note! Remote management function is optional The function depends on customer site hardware/software support Please consult Delta representative for details.

D ISPLAY

A 128 * 64 characters LCD Display is on the CSU for display shelf status as the following:

Main page: DCV, DCI, shelf status, Alarm

F UNCTION

1 Form C (SPDT) 1A at 24VDC, only allow to connect to safe low voltage circuit

100mΩ Normal Open, Normal Close, Common

Relay Alarm Event ALARM EVENT DESCRIPTION

1 One Rectifier Fail One Rectifiers Fail Alarm

2 Two or More Rectifier Fail Two or More Rectifier Fail Alarm

3 CSU Fail CSU Fail Alarm

4 AC Off AC Input Fail Alarm

5 DCL DC Low Voltage Alarm

6 Load Fuse Load Fuse (Breaker) Blow/Trip Alarm

7 Battery Switch Battery Fuse Blow Alarm

8 Any LVDS Any LVDS Trip Alarm

P ARAMETER S ETTING

The following lists outline the factory preset parameters for the ES48/120-UDA02 and ES48/400-UBA01 models Please note that default settings may vary between different systems, and these lists are intended for reference purposes only.

DCH DC High Voltage Alarm 57.5V

DCL DC Low Voltage Alarm 49.5V

HVSD DC High Voltage Shut Down 60.0V

Float Voltage Float Charge Voltage 54V

EQU Voltage Equalize Charge Voltage 56.4V

TAH Environment High Temp Alarm 55℃

TAL Environment Low Temp Alarm -15℃

HTSD Environment High Temp Shut down 65℃

LTSD Environment Low Temp Shut down -25℃

ACH AC High Voltage Alarm 260Vac

ACL AC Low Voltage Alarm 180Vac

Capacity Battery Total AMP HOUR 180AH

TBH Battery High Temp Alarm 40℃

Middle Test Voltage Middle Test Voltage 1.0V

Battery Test Battery Test Enable

Test Time Battery Test Time 1 Hour

Test Voltage Battery Test Voltage 47.0V

Test Current Battery Test Current 0.10C

Battery Periodic Battery Periodic Test Enable

Test Perid Battery Periodic Test Period 6 Month

Test Date Battery Periodic Test Date 3 Day

Test O’Clock Battery Periodic Test O’Clock 0 O’Clock

Time Battery Periodic Test Last Test

Time yyyy/mm/dd hh/mm/ss Next Battery Test

Time Battery Periodic Test Next Test

Time yyyy/mm/dd hh/mm/ss 5.4.3 Temp Compensation parameter setting

Temp Compensation Temp Compensation Enable

Compensation Mode Temp Compensation Mode 0 (0;Linear, 1;Curve)

Coefficient Temp Compensation Coefficient 2.0mV/C

Temp Comp Center Temp Compensation Center 25℃

EQU Max Time EQU Max Time 12 Hour

Additional EQU Time Additional EQU Time 1 Hour

EQU Terminal Curr EQU Terminal Current 0.05C

EQU Periodic Period Equalize Charge Enable

EQU Period Period Equalize Charge Period 6 Month

EQU Date Period Equalize Charge Date 12 Day

EQU O’Clock Period Equalize Charge O’Clock 12 O’Clock

Last EQU Time Last Period Equalize Charge Time yyyy/mm/dd hh/mm/ss

Next EQU Time Next Period Equalize Charge Time yyyy/mm/dd hh/mm/ss

Deep Voltage Deep Discharge Voltage 46.0V

AC Fail Time AC Fail Time 1 Hour

DCH DC High Voltage Alarm 57.5V

DCL DC Low Voltage Alarm 49.5V

HVSD DC High Voltage Shut Down 60.0V

Float Voltage Float Charge Voltage 54V

EQU Voltage Equalize Charge Voltage 56.4V

TAH Environment High Temp Alarm 55℃

TAL Environment Low Temp Alarm -15℃

HTSD Environment High Temp Shut down 65℃

LTSD Environment Low Temp Shut down -25℃

ACH AC High Voltage Alarm 260Vac

ACL AC Low Voltage Alarm 180Vac

Capacity Battery Total AMP HOUR 880AH

TBH Battery High Temp Alarm 40℃

Middle Test Voltage Middle Test Voltage 1.0V

Battery Test Battery Test Enable

Test Time Battery Test Time 1 Hour

Test Voltage Battery Test Voltage 47.0V

Test Current Battery Test Current 0.10C

Battery Periodic Battery Periodic Test Enable

Test Perid Battery Periodic Test Period 6 Month

Test Date Battery Periodic Test Date 3 Day

Test O’Clock Battery Periodic Test O’Clock 0 O’Clock

Time Battery Periodic Test Last Test

Time yyyy/mm/dd hh/mm/ss Next Battery Test

Time Battery Periodic Test Next Test

Time yyyy/mm/dd hh/mm/ss 5.4.7 Temp Compensation parameter setting

Temp Compensation Temp Compensation Enable

Compensation Mode Temp Compensation Mode 0 (0;Linear, 1;Curve)

Coefficient Temp Compensation Coefficient 2.0mV/C

Temp Comp Center Temp Compensation Center 25℃

EQU Max Time EQU Max Time 12 Hour

Additional EQU Time Additional EQU Time 1 Hour

EQU Terminal Curr EQU Terminal Current 0.05C

EQU Periodic Period Equalize Charge Enable

EQU Period Period Equalize Charge Period 6 Month

EQU Date Period Equalize Charge Date 12 Day

EQU O’Clock Period Equalize Charge O’Clock 12 O’Clock

Last EQU Time Last Period Equalize Charge Time yyyy/mm/dd hh/mm/ss

Next EQU Time Next Period Equalize Charge Time yyyy/mm/dd hh/mm/ss

Deep Voltage Deep Discharge Voltage 46.0V

AC Fail Time AC Fail Time 1 Hour

R EAL T IME O PERATION S TATUS

The shelf status is prominently displayed on the front of the CSU, while the Main page is consistently shown during regular operation Please note that all values listed are for reference purposes only.

DCV 54.0V DCI 0A Sys Sta FL Alarm Existing

DCV: System output DC Voltage DCI: Total system output current Sys Sta: System status

Alarm Existing: “Alarm Existing” will display if alarm had occurred 5.5.1 System Information

Sys Info ↑Sys setting ┘Curr Alarm ↓Press ENTER;

Battery Event Log Curr Setting

24 0.0A OK - Total 24 rectifiers can be display

00 XXXX Alarm YYYY-MM-DD HH: MM: SS

Total 100 events can be display

DC Setting ↑ Alarm setting ┘ Batt setting ↓ Other setting

EQU ALM ON TST ALM ON

T- COMP BDT Setting B-EQU Setting a B- Parameter

T- COMP BDT Setting B-EQU Setting Press ENTER

Max Time 1Hr Min Curr 0.1C Extra Time 1Hr b T- COMP

ENABLE in EQU Coef 4.0mV/℃ RANGE ±1.3V T- START 25℃ b-2 Non Linear

Linear Non Linear Press ENTER

Periodic BDT Status ON Next Batt Test 05/06/02 00:00 BDT I 0.1C End VLT 45V BDT Time 1Hr Periodic Test Period 1M Date 1D Time 0Hr d B- EQU Setting

Periodic B-EQU Period 1M Date 1D Time 0Hr 5.5.1.4.4 Other Setting

Eficnt Func ON 5.5.1.5 AC & Temperature Information

Current Date YYYY/MM/DD Current Time HH: MM: SS

Sys Info ↑ Sys setting ┘ Curr Alarm ↓ Press ENTER;

DC Setting Alarm Setting Batt Setting Date Setting Efficiency Mgt

Alarm Reset Temp Unit Press ENTER;

LT ON HTSD ON Batt OTP ON LVDS1 ON LVDS2 ON EQU ON Batt Tst ON Batt Unb ON 5.5.2.2.1 HV Alarm

*Enable Disable SETPOINT 45℃5.5.2.2.7 LT Alarm

Note! NEVER set the default voltage of LVDS2 over the default voltage of

LVDS1, otherwise, the function of LVDS1 will DISABLE

*Enable Disable 5.5.2.2.13 Batt Tst Alarm

B-Parameter T-COMP BDT Setting B-EQU Setting

B-Parameter Capacity 200AH EQU Stop

EQU Enable a EQU Stop Setting

Stop EQU Max Time 1Hr Min Curr 0.01C Extra Time 1Hr EQU CL

Stage1 0.25C Stage2 0.15C Stage3 0.10C b EQU Enable Setting

EQU Enable Batt Cap ON

BO Time ON Batt VLT ON b-1 Batt Cap Setting

ON OFF SETPOINT 80% b-2 BO Time Setting

ON OFF SETPOINT 1Hr b-1 Batt VLT Setting

T-COMP Enable Choose T-COMP Linear

Coef 4mV/℃ RANGE ±1.3V T- START 25℃ b Non Linear

Manual BDT Periodic BDT Next BDT 00: 00 YYYY/MM/DD Manual BDT Setting

Manual BDT Status: OFF Setting Start MBDT BDTI 0.10C End VLT 45V BDT Time 1Hr

Manual B-EQU Periodic B-EQU Next B-EQU 00: 00 YYYY/MM/DD

Date Setting YYYY/MM/DD HH: MM

DC Setting Alarm Setting Batt Setting Date Setting

Alarm Reset Reset HVSD Reset Com-Fail a Reset HVSD

- High voltage shutdown reset- b Reset Com-Fail

Sys Info ↑ Sys setting ┘ Curr Alarm ↓ Press ENTER;

L Bkr0-06A BDT C Alarm TASF Alarm

6 SWITCH MODE RECTIFIER (DPR2000 RECTIFIER)

D ESCRIPTION

The Delta DPR2000 series is a compact and reliable front-end rectifier family, delivering a constant power output of 2000W from 48Vdc to 59.5Vdc, with constant current output below 48Vdc Its modular design allows for flexible configuration and system expansion to meet increasing load demands Each rectifier is hot-swappable and features front access, enabling easy maintenance without system shutdown, ensuring uninterrupted service.

DPR2000 series is active power factor corrected to great than 0.99 PF (THD 0.99 at full load, nominal line

91.0% (80%~100% load) 91% (60%~80% load) 91.0%(40%~60% load) Protection: Fuse

Current Sharing ≦±5% of rated output current

AC OK: AC input Voltage Green LED

RFA: Rectifier Fail Alarm Red LED

- Conduction (AC input) FCC class B

- Conduction (DC output) EN 55022, class A (150Khz~30Mhz)

- Enclosure electromagnetic field: EN 61000-4-3 electrostatic discharge (ESD): EN 61000-4-2

10V/m 15KV air discharge 8KV contact discharge

- AC input radio frequency common mode: EN

Voltage dips and interruptions: EN 61000-4-11

Safety IEC 60950-1, CB certificate, CB scheme, UL/cUL 60950-1, CSA- C22.2, CE mark, TUV Approval MTBF > 300K hours at 25℃, rated load

SMR O PERATING P RINCIPLE

When single-phase 220 VAC is applied to the SMR, current flows through the EMI filter and protection components, including the AC circuit breaker and fuse These protection devices are essential for safeguarding the SMR against surge currents, minimizing input current interruption signals, and preventing reverse current feedback into the circuit.

After converting single-phase AC current to DC using a bridge rectifier and PFC boost converter, the system achieves a True Power Factor greater than 0.99 and Total Harmonic Distortion below 5% with the help of a PFC controller This process generates a 400V DC voltage, which is then utilized by the DC/DC converter to power the control circuitry of the SMR and establish a back current source.

A DC/DC converter efficiently transforms a 400 VDC input into a stable output voltage using the Full Bridge series resonant converter technique By employing a switching frequency exceeding 100 KHz, this converter ensures optimal performance and reliability in voltage regulation.

AC pulse, then through the high frequency transformer, step down, the voltage becomes an appropriate AC pulse width

The stable DC current is yielded by the Secondary AC pulse after flowing through a diode and output filter and is fed back through a DC/DC controller

Before stable voltage and DC current are supplied by the rectifier's output, the signal undergoes conversion via a DC/DC converter A filter circuit effectively eliminates common mode EMI noise, while an output circuit fuse ensures system protection in parallel.

7 SWITCH MODE RECTIFIER (DPR2700 RECTIFIER)

D ESCRIPTION

The Delta DPR2700 series is a reliable and compact front-end rectifier family, delivering a constant power output of 2700W across a voltage range of 48Vdc to 59.5Vdc, with constant current output below 48Vdc Its modular design allows for flexible configuration and expansion as load demands grow Each rectifier features hot-swappable capabilities with front access, enabling easy maintenance without system shutdown, ensuring uninterrupted service.

DPR2700 series is active power factor corrected to great than 0.99 PF (THD 0.99 at full load, nominal line

Efficiency: >91% at nominal line input

Current Sharing ≦±5% of rated output current

AC OK: AC input Voltage Green LED RFA: Rectifier Fail Alarm Red LED

E NVIRONMENTAL

10V/m 15KV air discharge 8KV contact discharge

- AC input radio frequency common mode:

EN 61000-4-11 Voltage transients - burst: EN

P HYSICAL

O UTLINE & D IMENSIONS

AC F AIL /AC H IGH V OLTAGE / AC L OW V OLTAGE A LARM D ESCRIPTION

There are three (3) AC alarm conditions that are monitored by the system: AC Fail,

AC High Voltage (ACH) and AC Low Voltage are critical parameters in electrical systems An AC failure occurs when the AC current is absent at the AC Distribution box, leading to potential system disruptions ACH is a factory-set parameter that can be adjusted to trigger a High Voltage Alarm when the voltage exceeds desired levels In the event of any of these three alarms, the system will automatically shut down rectifiers until AC power is restored or the voltage returns to acceptable thresholds.

8.1.1 AC Fail, AC Input High(ACH) and AC Input Low (ACL) Alarm Conditions

When the CSU detects a loss of AC current at the AC Distribution box on the DC Distribution Shelf, it triggers a major alarm, displaying ACL and AC DN Alarm indicators This indicates that the battery is discharging The alarm will reset to normal once AC power is restored During an AC failure, the CSU operates using reserve batteries.

When the CSU detects that the input AC voltage has surpassed the alarm threshold, it triggers an AC High Alarm, which is visibly indicated on the CSU In response, the system will deactivate the rectifiers, but the CSU will continue functioning using reserve batteries It will persist in monitoring the AC input voltage, and the ACH alarm will reset to normal operation once the AC input voltage falls back within the specified threshold parameters.

The AC Voltage Low Alarm activates when the AC input voltage drops below the predefined threshold, triggering an ACL alarm on the CSU In response, the CSU shuts down the rectifiers while maintaining operation using reserve batteries It continuously monitors the AC input voltage, and the ACL alarm will reset to normal once the voltage rises above the threshold parameter.

In the event of an AC failure, the CSU operates on reserve batteries while the rectifiers are turned off Once AC power is restored, it is important to monitor the battery charge current If a deep discharge has taken place, you may need to adjust the current limit to fall within the appropriate charge current range during the equalization process.

8.1.3 AC High Voltage (ACH) Trouble shooting

Check the AC input voltage at the service panel; if it exceeds the threshold limit, the CSU will disconnect the rectifiers In such cases, the AC circuit breaker at the service panel must be tripped until the AC utility is fixed and the input voltage falls within the specified range.

Ensure that the AC distribution voltage exceeds the specified setting; if it does not, the system will remain operational, indicating a potential fault in the CSU Replace the CSU with a spare unit and set the High Voltage (ACH) parameter to the appropriate threshold, confirming that the ACH alarm has been cleared Adhere to the established repair and return policy to arrange for the faulty CSU to be repaired by Delta Products.

Warning! Do not increase the threshold setting past normal operating input voltages Operating rectifiers in a High Input Voltage condition can result in seriously damaging the rectifier modules.

DC O UTPUT V OLTAGE H IGH /L OW (HV/LV)

8.2.1 DC Output Voltage High Alarm-HV Minor Alarm

An alarm condition occurs when the DC output voltage exceeds the specified alarm setting This alarm will reset to normal once the voltage falls below the threshold parameter Users can adjust the output voltage through the CSU and the rectifier For proper adjustments, refer to the CSU float voltage parameter and the rectifier equalization voltage settings.

8.2.2 DC Output Low Alarm-LV Minor Alarm

An alarm condition is triggered when the DC output voltage falls below the preset alarm threshold This alarm will reset once the DC output voltage rises above the specified level Adjustments to the output voltage can be made through both the CSU and the rectifier.

8.2.3 DC Voltage High/Low Trouble Shooting

To ensure optimal performance, verify the output of each rectifier If any output falls outside of the specified tolerance, replace the rectifier with a spare module and send the defective unit to Delta Products for repair Conversely, if all rectifiers are within tolerance, proceed to check the parameters to confirm that the settings are correct.

DC C IRCUIT B REAKER T RIPPED A LARM

8.3.1 DC Circuit Breaker Tripped Alarm

When a DC load circuit breaker is tripped, the CSU will go into alarm

Press the alarm button and the CSU will display “Breaker Fail”

Re-set the tripped circuit breaker

The CSU alarm should clear

8.3.2 Circuit Breaker Fail Condition Trouble Shooting

If the circuit breaker continues to fail:

Check the DC Branch load (fed by the DC circuit breaker) to ensure the circuit breaker is the correct size

If the branch load exceeds the circuit breaker rating, the circuit breaker must be changed to a higher rating

Swap with a spare circuit breaker with a higher rating.

O VER -T EMPERATURE A LARM

The alarm is triggered when the temperature exceeds the threshold set in the parameter alarm setting TA, while also managing the Temperature Compensation Voltage Control The CSU detects the temperature using sensor TA and activates the alarm accordingly.

Ambient Over Temperature Alarm setting – TA

Verify that the ambient temperature has exceeded the parameter setting by checking the thermostat reading in the hut or equipment room and comparing the reading to the CSU Reading

The CSU will decrease the float voltage for every degree over the 25℃ or 77 ℉ threshold

The CSU will decrease the equalize voltage for every degree below the 25℃ or 77

If the TA parameter setting has been exceeded, increase the air conditioning

If the TA threshold is exceeded, it is recommended to turn off the AC Main feeding the Rectifiers until the ambient temperature has decreased below the threshold temperature

If the sensor is defective, turn the Temperature Compensation Feature off

Contact Delta Products for a replacement sensor

Warning! Operating the system at excessive temperatures can damage the rectifier

This alarm is generated when the threshold temperature set in parameter TB-1 is exceeded The CSU senses the temperature via sensor TB-1 and generates a Battery Over Temperature Alarm-TB-1

Check the ambient temperature and verify it is within the TA parameter threshold

To ensure proper functioning, verify that the TA and TB-1 thresholds are not exceeded by checking the thermostat reading in the hut or equipment room against the CSU reading If the TB-1 sensor is found to be defective, it is recommended to contact Delta Products for a replacement.

It is recommended that if the system is in the equalize mode, switch the status to float to reduce the battery temperature.

R ECTIFIER F AIL A LARM

When a rectifier malfunctions, an alarm is triggered and the rectifier is deactivated It is essential to replace the faulty rectifier with a spare unit and send the defective one back to Delta Products for repair.

Warning! Do not open the rectifier module There are no serviceable parts Call

Delta Customer Service for a RMA number for repair and return.

R EPLACE THE AC I NPUT F USE

The AC input for SMRs is sourced from the fuse located at the top of the SMR shelf If the SMR is not operational and the “AC ON” LED is off, it may indicate that the AC input fuse has blown.

1 Cut off the AC power from AC Breaker or Terminal

2 Check the fuse by multi-meter

3 Re-place the fuse of the same rating

4 Switch on the AC power

C LEANING AND M AINTENANCE

This shelf requires minimal maintenance, except in extremely dusty environments Its front panels and cover have a special coating; therefore, avoid using organic cleaners or volatile solvents to prevent corrosion For routine cleaning, simply brush off dust from the cover and panel If needed, a gentle cleanser or a lightly damp cloth can be used to eliminate dirt or smudges.

Periodic maintenance is not essential for the normal operation of the DPR-2700 shelf However, if needed, dust can be removed from the front using a soft, lint-free cloth Gently wipe the shelf, CSU, and rectifiers, and a mild detergent can be used for cleaning if necessary.

Warning! Do not use spray cleanser to clean the equipment Using a spray cleanser directly on the equipment can result in serious equipment damage

Check the DC Bus for heat discoloration If the bus has any heat discoloration, notify Delta Customer Service.

R EMOVING AND R EPLACING A R ECTIFIER M ODULE

Warning! Do not touch the DC output Bus when pulling out the SMR module

Warning! The rectifiers are equipped with a pair of safety locker

Push the both locker (on the center of the fan) to unlock direction to un-lock the rectifier

Pull out the SMR module slowly from the shelf, using one hand to support the rear half of the SMR and remove the rectifier from the shelf

To install the rectifier module, grip the handle with one hand while using the other hand to support the rear half of the module Carefully position the rectifier on the shelf and gently push it into place.

Warning! Do not force the module into the slot If it does not slide in and connect easily, remove and re-set the unit

Lock the rectifier by push the locker to the lock direction to lock the rectifier

Refer to the procedures in section 9.2.2.

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