Delta N-6K, N-12K User Manual

ONLINE

N series

6-10KVA

USER MANUAL

Uninterruptible Power Supply

CONTENT

1. IMPORTANT SAFETY INSTRUCTIONS.................................................................................................................1

2. INTRODUCTION ......................................................................................................................................................3

2-1 FUNCTIONS AND FEATURES..........................................................................................................................3

2-2 FRONT CONTROL PANEL................................................................................................................................4

2-3 REAR CONTROL PANEL..................................................................................................................................5

3. TECHNICAL DATA .....................................................................................................................................................7

4. INSTALLATION.........................................................................................................................................................10

4-1 UNPACKING AND INITIAL INSPECTION.......................................................................................................10

4-2 STORAGE AND BATTERY MAINTENANCE..................................................................................................10

4-3 PLACEMENT....................................................................................................................................................10

4-4 HANDLING.......................................................................................................................................................12

5. OPERATION..............................................................................................................................................................13

5-1 POWER ON/OFF INVERTER...........................................................................................................................13

5-2 LCD FUNCTION SELECTION SWITCH ..........................................................................................................15

5-3 PARAMETER SET-UP MODE .........................................................................................................................16

5-4 OPERATION ON BYPASS VOLTAGE BEYOND ALLOWABLE RANGE......................................................18

5-5 OVERLOAD AND SHUTDOWN OPERATION................................................................................................18

5-6 VERIFYING THE BATTERY STATUS.............................................................................................................19

5-7 OPERATION OF MANUAL BYPASS SWITCH ...............................................................................................19

6. COMMUNICATION INTERFACE..............................................................................................................................20

6-1 RS232 INTERFACE .........................................................................................................................................20

6-2 REMOTE EMERGENCY POWER OFF............................................................................................................20

6-3 DRY CONTACT................................................................................................................................................21

6-4 SNMP CARD (OPTIONAL) ..............................................................................................................................22

6-5 DETECTION FOR QUANTITY OF EXTERNAL BATTERY PACK..................................................................23

1

1. IMPORTANT SAFETY INSTRUCTIONS

 This manual contains important instructions for the unit that should be followed during

installation and maintenance of the UPS and batteries.

 Install the on line UPS in a well ventilated area, away from flammable liquids and gases. Do

not let the unit come in contact with water.

 External slits and openings in the cabinet are provided for ventilation. To ensure reliable

operation of the product and to protect from overheating these openings must not be blocked
or covered. Objects must never be inserted into ventilation holes or openings.

 Do not stand beverage containers on the unit.
 This UPS was designed to power all modern computer loads and associated peripheral

devices, such as monitors, modems, cartidge tape drives, external floppy drives etc.. Do not
use it for pure inductive or capacitive loads. It is not rated to power life support equipment.

 All recorded media, such as diskettes, tapes and cartridges, should be kept a minimum of

60cm from the UPS. Otherwise, the magnetic field created by operation of the UPS may
erase data on those devices.

 All repairs or installation should be performed by qualfied service personnel. The UPS

contains voltages which are potentially hazardous. The output receptacles may be alive even
when the UPS is not connected to the mains.

 Risk of a possible electrocution is possible when the battery is connected to the UPS.

Therefore, do not forget to disconnect the batteries before any service is to be done on the
UPS. To disconnect, remove the battery fuse holder which is located at the rear panel of the
UPS.

 Isolate Uninterruptible Power Supply (UPS) before working on the circuit. A readily accessible

disconnect device shall be incorporated in the fixed wiring.

 HIGH LEAKAGE CURRENT – Earth connection essential before connecting power source.
 Federal Communications Commission Interference Statement

This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
FCC Caution: To assure continued compliance, (example-use only shielded interface cables
when connecting to computer or peripheral devices). Any changes or modifications not
expressly approved by the party responsible for compliance could void the user’s authority to
operate this equipment.

 ATTENTION, hazardous through electrical shock. Also with disconnection of this unit from the

mains, hazardous voltage still may be accessible through supply from the batteries. The
battery supply should be therefore disconnected in the plus and minus pole of the batteries
when maintenance or service work inside the UPS is necessary.

 Do not dispose of the batteries in a fire, the batteries may explode.

1

 Do not open or mutilate the battery or batteries. Released electrolyte is harmful to the skin

and eyes. It may be toxic.

 A battery can present a risk of electric shock and chemical hazard. The following precaution

should be observed when working on batteries.

* Remove watches, rings or other metal objects.
* Use only tools with insulated handles.

- The compliance with the following standards provides the conformity:

- EN 62040-1-1

- EN 62040-2 CLASS A

- IEEE-C62.41 Category B

- IEC 61000-2-2

- IEC 61000-4-2 LEVEL3

- IEC 61000-4-3 LEVEL3

- IEC 61000-4-4 LEVEL4

- IEC 61000-4-5 LEVEL4

- IEC 61000-4-6

- IEC 61000-4-8

- CNS 14843-1

- CNS 13438 CLASS A

SYMBOL

PROTECTIVE GROUNDING TERMINAL: A TERMINAL WHICH MUST BE
CONNECTED TO EARTH GROUND PRIOR TO MAKING ANY OTHER
CONNECTION TO THE EQUIPMENT.

A TERMINAL TO WHICH OR FROM WHICH A DIRECT CURRENT OR VOLTAGE
MAY BE APPLIED OR SUPPLIED.

THIS SYMBOL INDICATES THE WORD "PHASE".

2

2. INTRODUCTION

2-1 FUNCTIONS AND FEATURES

 A True ON LINE design. The UPS insures the critical power protection for your

mission-critical equipment at all times.

 Wide input range of power supply that reduces discharge rate of battery.
 A smart charger design for auto equalizing charge to shorten charging time.
 Equipped with RS232 port and Dry-contact interface, using the power management

software “UPSentry Smart 2000” allows near-end and far-end UPS monitoring
management.

 Automatic detection of 50/60Hz field input frequency
 With excellent performance. Input current using active input power factor correction

and a high-frequency inverter with pulse width modulation.

 Optional isolated output transformer: Provides isolation and multiple output voltage.
 Start-on-battery capability for powering up the UPS even if utility power is not

available.

 Optional SNMP interface card is an optional accessory for network communication.
 Implementing diagnostic test and LCD message display by using microprocessor

technology can provide detailed information on operation status.

 Manual and static bypass switch forms. Allowance for switching to the main power

supply.

 Static bypass supply circuit incorporates functions such as surge suppression and

EMI filter.

 Remote emergency power off (REPO): Emergency shutdown control through the

remote emergency power-off (REPO) port.

 Auto recovery function of inverter:

 When the AC pow er is restored after a low battery shutdown, the UPS inverter will

automatically restart.

 Automatic transfer to inverter output from static bypass after overload condition is

cleared.

 Alarm cancel facility to switch off the audible alarm and indicative lights still lit in the

event of long BACK-UP periods.

 External battery cabinet can be used for extending operation time of battery mode.
 Operation of “ECONOMIC Mode” (Optional): When input voltage is within the range of

rating voltage (±10%), the UPS is working in the bypass mode for higher efficiency.
Otherwise the UPS will be switched to inverter mode.

 Auto detection for voltage in bypass mode: The protection range is +15%~ - 20%.

When the bypass voltage is beyond protection range, the UPS will not supply output
power to the load.

 Auto detection and display for normal operation of fan.

3

2-2 FRONT CONTROL PANEL

NORMAL

ON OFF

FAULTBYPASSBATTERY

FRONT CONTROL PANEL

1. INVERTER ON BUTTON

Press the “ON” button for 3 seconds to activate the inverter.

2. INVERTER OFF BUTTON

Press the “OFF” button for more than 3 seconds to disable the inverter.

3. FUNCTION BUTTON

- In BYPASS/ECONOMIC/ON LINE/BATTERY mode, press the up (↑) or down (↓) button to

view information on load, voltage and frequency of bypass, input and output, battery and
charger. (Refer to 5.2.)

- In ON LINE and ECONOMIC modes, pressing the up (↑) button for more than 3 seconds can

detect the battery capacity.

NOTE: If the UPS is in alarm status, pressing the up (↑) or down (↓) button for more than 3

seconds can disable the buzzer.

4. BACKLIT LCD DOT MATRIX DISPLAY

16×2 character display indicates the operating status of I/P and O/P voltage and

battery voltage.

5. NORMAL LED

Display the UPS DC/AC circuit is working or not.

6. BATTERY LED

Display the UPS power source is from battery.

7. BYPASS LED

Display bypass voltage condition and UPS output voltage path from bypass.

8. FAULT LED

4

Display any abnormality condition happened on UPS.

2-3 REAR CONTROL PANEL

7
8

9

5

11

EMERGENCY
POWER OFF

RS-232

DRY

CONTACT

BATT. NO.

AC

INPUT

BREAKER

3

10

SNMP

6

MANUAL BYPASS

1

4

240VDC 20A

2

6KVA

5

BATT. NO.
EMERGENCY
POWER OFF

RS-232

SNMP

DRY
CONTACT

MANUAL BYPASS

7

8

240VDC 4 0A

11

EMERGENCY

POWER OFF

DRY

CONTACT

BATT. NO.

RS-232

SNMP

10

9

6

5

MANUAL BYPASS

1

240VDC 40A

4

32

12KVA

6

(1). MANUAL BYPASS SWITCH:

To change power load from static bypass to directive bypass while maintaining UPS

without any power interruption.

(2). INPUT TERMINALS:

To connect the AC mains input.

(3). OUTPUT TERMINALS:

Connection of the load terminals is supported by UPS.

(4). EXTERNAL BATTERY CABINET CONNECTOR:

Connect to external battery cabinet to extend the backup time.

(5). AC INPUT BREAKER:

Provides safe protection for UPS AC input.

(6). EXHAUST FANS:

For cooling air ventilation of UPS.

(7). REMOTE EMERGENCY POWER OFF:

For more details, refer to Chapter 6.

(8). TRUE RS232 INTERFACE PORT:

For more details, refer to Chapter 6.

(9). DRY-CONTACT INTEERFACE PORT:

For more details, refer to Chapter 6.

(10). SNMP CARD (OPTIONAL):

For more details, refer to Chapter 6.

(11). EXTERNAL BATTERY PACK DETECTION:

For more details, refer to Chapter 6.

7

3. TECHNICAL DATA

Model 6KVA 12KVA

1. Power

1.1 Power (VA) 6000VA 12000VA

1.2 Power (W) PF=0.7 4200W 8400W

2. Output Waveform Sine wave

3. Input

3.1 Input Voltage 220Vac, single phase

3.2 Input Current 27.3A 54.5A

- Inrush Current

- Power Factor  0.99 (At Normal Line and Full Load)

3.3 Efficiency (Full Resistance Load)

- On line Mode (AC to AC) 88% (Full linear load)

- Economy Mode 94% (Full linear load)

3.4 Input Frequency 50/60Hz±0.5,1, 2, 3, 4, 5 Hz (Programmable)

3.5 Input Protection Circuit Breaker 40A (1 pole x 1) 63A (1 pole x 1)

4. Output

 200A

4.1 Output Voltage

- RMS Voltage

- Static Regulation

4.2 Harmonic Distortion  5%

4.3 Overload Capability ≦102% Continuous

102%~125%: 1 Minute

125%~150%: 30 Seconds

 150%: Immediate

4.4 Overload Release

4.5 Inverter Short Circuit Protection Current

4.6 Short Circuit Protection

4.7 Output Frequency 50/60Hz  0.5Hz (Battery mode)

4.8 Output Protection Circuit Breaker

- Bypass (Outside Installation Capacity)

- Inverter

4.9 Crest Factor

40A(1pole*1) 63A(1pole*1)

120V/220Vac, single phase

 2

90 5 (Rated Load)

90A 150A

Shutdown and no output

Electronic protection

2.7:1

7

Model 6KVA 12KVA

5. Battery & Charger

5.1 Types Sealed Lead Acid

5.2 Number of Battery

5.3 Protection

5.4 Recharge Voltage

5.5 Recharge Current 8Hrs 90

- Standard Mode

5.6 Battery Leakage Current 1mA≦

5.7 Battery Low Voltage Alarm 220Vdc 3

5.8 Battery Shutdown Voltage

5.9 Back-up Time

0.7A at 250Vdc (175W) 1.4A at 250Vdc (350W)

212Vdc 3(discharge exceed 1hour)

≧7 Minutes (4200W)

12V/ 7Ah x 20PCS

6. Operation

6.1 Transfer Time

- On line Mode

- Main Power Failure 0ms

- Main Power Recover 0ms

12Vdc battery x 20 PCS

30A/600V x 2pcs FUSE

Floating 271Vdc/ Boost 280Vdc

200Vdc 3

≧3 Minutes (8400W)

12V/ 9Ah x 20PCS

- Inverter To Bypass  1ms

- Bypass To Inverter  1ms

- Economy Mode

- Main Power Recover 0ms

- Inverter To Bypass  1ms

- Bypass To Inverter  1ms

- Main Power Failure 8ms (Typical)

6.2 Audible Noise  53 dBA  65 dBA

7. Indications

7.1 LED Status Mimic Diagram Normal, Battery, Bypass, Fault

7.2 LCD Display Refer to Chapter 5.

8. Communications

8.1 RS232 Refer to Chapter 6

8.2 Remote Emergency Power Off Refer to Chapter 6

8.3 Dry-Contact Refer to Chapter 6

8.4 SNMP Function (Optional) Refer to Chapter 6

8.5 External Battery Pack Detection Refer to Chapter 6

8

Model 6KVA 12KVA

9. Connection

9.1 Input Terminal Block 60A/600V 4 Pin x1

9.2 Output Terminal Block 60A/600V 7 Pin x1

9.3 Extended Battery I/P Socket 40A

10. Manual Bypass Switch Function 25A 63A

11. Outlook

11.1 Dimension

- Depth (D)

- Width (W)

- Height (H)

- Net Weight

- Battery Cabinet Weight

12 Environment

12.1 Ambient Operating Temperature

12.2 Ambient Storage Temperature

12.3 Relitive Humidity

13 Standards

13.1 CNS 14843-1

13.2 CNS 13438 Class A

13.3 IEEE-C62.41 Category B

13.4 EN62040-1-1

13.5 EN62040-2 Class A

13.6 IEC 61000-2-2

13.7 IEC 61000-4-2 Level 3

13.8 IEC 61000-4-3 Level 3

13.9 IEC 61000-4-4 Level 4

13.10 IEC 61000-4-5 Level 4

13.11 IEC 61000-4-6

13.12 IEC 61000-4-8

133KG/ 293LB 166KG/ 365.7LB

581mm/22.87 inches

280mm/11.02 inches

761mm/29.96 inches

180KG/ 396LB

o

0

C~40 oC/32 oF~104 oF

o

-20

C~40 oC/-4 oF~104 oF

5%~95% H

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

9

4. INSTALLATION

4-1 UNPACKING AND INITIAL INSPECTION

Carefully unpack and inspect the UPS upon receipt. If there is damage or anything is missing
from the shipment, contact the dealer from whom you purchased the unit and save the
packaging for future shipment. The packaging is recyclable, save the box and packing
material for reuse. (Pay attention to the packing method. If you need to return the UPS any
time, repack it how it was originally shipped.) If the unit passes the initial inspection, record
the purchase date on rear panel of the unit .

Package content: 1. User Manual  1

2. RS232 Cable  1

3. “UPSentry Smart 2000” software CD  1

4-2 STORAGE AND BATTERY MAINTENANCE

 If the UPS is to be stored before installation, it should be placed in a dry, ventilated area where

it will not be exposed to dirt, moisture or other contaminates.

 Extreme storage temperatures:

-20C to + 60C without batteries.

-20C to + 45C with batteries for a short period.

 Maximum period for battery storage: 6 months at 20C or 3 months at 30C.
 Eight hours of charging time is needed when the UPS is charged for the first time.
 If battery capacity still remains low after recharging for 8 hours, contact your dealer to replace

the batteries.
 If the UPS is to be powered off for a long period, it is recommended that the UPS should be

switched on for 24 hours before power off. The battery should be recharged every 3 months to

prevent irreversible battery damage.
 While replacing the batteries, use the same number and the following types of batteries:
6KVA:12V/7Ah*20/1SET, YUASA( NP7-12) or CSB(GP1270) or B&B(HR7-12).

12KVA:12V/9Ah*20/1SET, YUASA (REW45-12) or CSB (HR1234WF2) or B&B (HR9-12)

or Matsushita(LC-R19).

4-3 PLACEMENT

Install the ON LINE UPS in a temperature and humidity controlled, indoor environment,

free of conductive contaminants. Ambient temperature must not exceed 40°C (104°F).
IMPORTANT: To maintain the maximum battery life, please keep the UPS at an ambient
temperature of 15C to 25C. Battery life is reduced by half for every 10C above 25C.

10

Required Protective Devices and Cable Selection:

Refer to the following table on recommended cable and upstream protection:

Model Rated Input Cable Rated Output Cable

6 KVA 8AWG or 8mm2

8AWG or 8mm

2

D curve – 40A

Upstream Circuit-Breaker

12 KVA 6AWG or 14mm2 6AWG or 14mm2 D curve – 63A

SELECTION OF CONDUIT AND BUSHING:

According to National Electrical Code, install all the wiring with suggested suitable conduit and bushing as below.

Conduit: Flexible metal conduit sized one inch.
Bushing: Overall diameter is 40.5mm, height is 13.1mm.

Input and Output Connection:

When connecting the cable, please note that:

1. Before connecting, turn off the UPS and cut off AC power and battery.

2. Ensure the cable is fitted. The minimum tightening torque shall not be less than 35 lbs with a cable sleeve &

secured by the connector clamp.

3. Connect the EARTH wire to the terminal marked with “

” .

The connective methods of input and output:

1. Output 1, 3 wires: (For 6KVA and 12KVA)

11

4-4 HANDLING

 The unit is fitted with wheels for moving it over a short distance. It is stabilized by four feet at

both side.

For safety reason, secure the unit by releasing the feet. Refer to Fig.1&2 or Fig.1&3

 The UPS should always have a clearance space of 300mm at the rear and 100mm on its side.

Refer to Fig.4

First change the direction
and fixed of “L” type metal

Remove the
screws.

then revolve screw plastic
foots to ground.

Fig.1 Fig. 2

30cm

UPS

First change the direction and
revolve screw plastic foots on
side of “L” type metal then to
fixed “L” type metal on ground.

Fig.3 Fig.4

10 cm

12

5. OPERATION

5-1 POWER ON/OFF INVERTER

Power on Inverter

Switch on the AC input breaker on rear control panel, and the load will be energized.
 When the AC input is normal, press the inverter “ON” button on front control panel for 3

seconds.

 When the AC input fails, press the “ON” button for more than 3 seconds to turn on inverter

from batteries.

 The UPS starts diagnostic test and shows the results on the back lit LCD display as shown

below.

DIAGNOSIS MODE

AC START BATTERY START




DIAGNOSTIC MODE

FREQ OUT= XXHZ

DIAG N O STIC M OD E

INPUT XXXV/XXHZ

DIAG N O STIC M OD E

RECTIFIER OK

DIAG N O STIC M OD E

CHARGER OK

DIAGNOSTIC MODE

BATTERY OK

DIAGNOSTIC MODE

DC BUS OK

DIAGNOSTIC MODE

TESTING INVERTER

ON LINE MODE

LOAD= XXX % X. XXKW.

DIAGNOSTIC MODE

FREQ OUT=XXHZ

DIAGNOSTIC MODE

INPUT XXXV/XXHZ

DIAGNOSTIC MODE

RECTIFIER OK

DIAGNOSTIC MODE

BATTERY OK

DIAGNOSTIC MODE

DC BUS OK

DIAGNOSTIC MODE
TESTING INVERTER

ON BATTERY

LOAD=XXX% X.XXKW

.

13

After diagnostic test, the load is supplied by the inverter; if the diagnostic test fails, the
error messages will be shown as below.

ERROR MESSAGES

BAD BATTERY

CHARGER FAILURE

DC BUS FAILURE

INVERTER FAILURE

OUTPUT FAILURE

FAN FAILURE

BAD BATTERY
SHUT DOWN

CHARGER FAILURE
SHUT DOWN

DC BUS FAILURE
SHUT DOWN

INVERTER FAILURE
SHUT DOWN

OUTPUT FAILURE
SHUT DOWN

FAN FAILURE
SHUT DOWN

Power Off Inverter

Press the ”OFF” button on front control panel to disable the inverter:

 If the AC input power exists, the UPS will be switched to BYPASS mode.

 If the UPS is in backup mode, the message ”UPS OFF WAITING” will be displayed on LCD

about thirty seconds then disappear.

 Before removing the battery connect wire, please wait until the message “UPS OFF

WAITING” displayed on LCD disappears.

14

5-2 LCD FUNCTION SELECTION SWITCH

In BYPASS/ECONOMIC/ON LINE/BATTERY mode, press the up (↑) or down (↓) button on front
control panel to view different power readings on LCD.

OPERATION IN BYPASS MODE

OPERATION IN ECONOMY MODE

BYPASS MODE

LOAD = XXX% X.XXKW

PRESS SELECT KEY

BYPASS MODE

BYPS = XXXV XX.XHz

PRESS SELECT KEY

BYPASS MODE

IN = XXXV XX.XHz

PRESS SELECT KEY

BYPASS MODE

OUT = XXXV XX.XHz

PRESS SELECT KEY

BYPASS MODE

BATT=XXXV XXX%

PRESS SELECT KEY

BYPASS MODE

CHRG=XXXV FLOAT(BOOST)

PRESS SELECT KEY

ECONOMY MODE

LOAD = XXX% X.XXKW

PRESS SELECT KEY

ECONOMY MODE

BYPS = XXXV XX.XHz

PRESS SELECT KEY

ECONOMY MODE

IN = XXXV XX.XHz

PRESS SELECT KEY

ECONOMY MODE

OUT = XXXV XX.XHz

PRESS SELECT KEY

ECONOMY MODE

BATT=XXXV XXX%

PRESS SELECT KEY

ECONOMY MODE

CHRG=XXXV FLOAT(BOOST)

PRESS SELECT KEY

OPERATION IN ON LINE MODE OPERATION IN BATTERY MODE

ON LINE MODE

LOAD = XXX% X.XXKW

PRESS SELECT KEY

ON LINE MODE

BYPS = XXXV XX.XHz

PRESS SELECT KEY

ON LINE MODE

IN = XXXV XX.XHz

PRESS SELECT KEY

ON LINE MODE

OUT = XXXV XX.XHz

PRESS SELECT KEY

ON LINE MODE

BATT=XXXV XXX%

PRESS SELECT KEY

ON LINE MODE

CHRG=XXXV FLOAT(BOOST)

PRESS SELECT KEY

ON BATTERY

LOAD = XXX% X.XXKW

PRESS SELECT KEY

ON BATTERY

BYPS = XXXV XX.XHz

PRESS SELECT KEY

ON BATTERY

IN = XXXV XX.XHz

PRESS SELECT KEY

ON BATTERY

OUT = XXXV XX.XHz

PRESS SELECT KEY

ON BATTERY

BATT=XXXV XXX%

PRESS SELECT KEY

ON BATTERY

CHRG = XXXV OFF

PRESS SELECT KEY

15

5-3 PARAMETER SET-UP MODE

Press both up (↑) and down (↓) buttons altogether for 3 seconds, then the UPS will enter SET-UP
mode.

SET-UP MODE

UPS SET-UP

EXIT ENTER

OUTPUT VOLTAGE
SCROLL SELECT

OUTPUT VAC=220V

SCROLL SELECT

Select output voltage
Retrun to set initial

OUTPUT VAC=230V

SCROLL SELECT

Select output voltage
Retrun to set initial

Re t u r n

OUTPUT FREQUENCY

SCRO

LL SELECT

Re t u r n

ECONOMY MODE

SCROLL SELECT

Re t u r n

OUTPUT VAC=240V

SCROLL SELECT

Select output voltage
Retrun to set initial

FREQUENCY=60HZ

SCROLL SELECT

Sel ec t out put f r e quenc y
Return to set initial

FREQUENCY=50HZ

SCROLL SELECT

Sel ect economy mode
Return to set initial

ECONOMY ON

SCROLL SELECT

Sel ect out put f r eque ncy
Return to set initial

ECONOMY OFF

SCROLL SELECT

Se l e c t e c o no my mo de
Return to set initial

16

BYPASS TRANSFER

SCROLL SELECT

Re t u r n

TRANSFER ON

SCROLL SELECT

Sel ect out put frequency
Return to set initial

TRANSFER OFF

SCROLL SELECT

Sel ec t ec onomy mode
Return to set initial

EXTEND BATTERY
SCROLL SELECT

Re t u r n

Re t u r n

BATTERY=00Ah

SCROLL SELECT

Sel ect out put frequency
Return to set initial

BATTERY=60Ah

SCROLL SELECT

Sel ec t ec onomy mode
Return to set initial

BATTERY=100Ah

SCROLL SELECT

Sel ect out put fr equency
Return to set initial

BATTERY=160Ah

SCROLL SELECT

Sel ec t ec onomy mode
Return to set initial

BATTERY=200Ah

SCROLL SELECT

Sel ect economy mode
Return to set initial

17

5-4 OPERATION ON BYPASS VOLTAGE BEYOND ALLOWABLE RANGE

The UPS can automatically detect the voltage in bypass mode. The protection range is

+15%~-20%. When the bypass voltage is beyond protection range, the UPS will not supply
output power to the load.

BYPS OUT OF VOLT

LOAD = XXX% X.XXKW

When the bypass voltage is higher than 115% of rating voltage,
the UPS will alarm and will not supply output power to the load.
The message “BYPS OUT OF VOLT” will also be displayed on
LCD.

When the bypass voltage is lower than 80% of rating voltage, the
UPS will alarm and will not supply output power to the load. The
message “BYPS OUT OF VOLT” will also be displayed on LCD.

5-5 OVERLOAD AND SHUTDOWN OPERATION

Overload Operation

When the UPS detects an output overload, it will commence a countdown (The length of time
depends on the severity of the overload.). If the UPS is still overloaded at the end of the
countdown, the UPS will automatically shut down and enter BYPASS mode.

Overload

Condition

102%-125%

125%-150%

LCD Display Message

Overload 102%

Load=XXX%X.XXKW

Overload 125%

Load=XXX%X.XXKW

Countdown to

Shutdown

1 minute

30 seconds.

>150%

Shutdown Operation

Condition

Extended Overload

Output Short Circuit

Remote Shutdown Command

Emergency stop power off

DC BUS Fault

Internal Temperature Faults

Overload 150%

Immediate

Load=XXX%X.XXKW

LCD Display Message

OVERLOAD XXX%

SHUT DOWN

OVER CURRENT
SHUT DOWN

REMOTE COMMAND

SHUT DOWN

EMERGENCY STOP
SHUT DOWN

+/-DC BUS HIGH/ LOW
SHUT DOWN

OVER TEMPERATURE
SHUT DOWN

18

5-6 VERIFYING THE BATTERY STATUS

The battery status is shown as below:

Battery Status Buzzer of Back-up Status LCD Display

Full

Beep per 2 seconds

Mid

Low Beep per 0.5 second

Under Long beep Battery under shutdown

BATTERY mode

BATT=

shutdown imminent

V 

Low battery

%

5-7 OPERATION OF MANUAL BYPASS SWITCH

The manual bypass switch is used for maintenance. In this situation, the AC input power is
directly supplied to the load.

CAUTION!

Activate manual bypass switch only when the UPS is in BYPASS mode.

NORMAL

BYPASS





BYPASS

NORMAL

 STEP 1: Turn off the inverter power to switch the

UPS to BYPASS Mode.

 STEP 2: Switch from “ON LINE” to “BYPASS”.
 STEP 3: Switch off the AC Input breaker on rear

STEP 4: Remove the battery connect wire.

 STEP 1: Insert the battery connect wire.
 STEP 2: Switch on the AC Input breaker on rear

 STEP 3: Switch from “BYPASS” back to

 STEP 4: Press the ON button on front control

panel.

panel..

“ON LINE”.

panel to turn on the inverter.

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6. COMMUNICATION INTERFACE

g)

6-1 RS232 INTERFACE

A 9-pin female SUB-D connector is provided on rear panel of UPS to transmit the UPS signals
to the computer. Using the Delta “UPSenrty Smart 2000” software allows users to check the
power status. The details on signals are shown as below.

 Load level
 Battery status
 Battery level
 UPS mode
 Input voltage
 Output voltage
 Input frequency
 Temperature inside unit
 Set shut-down delay

time

 Enable / Disable beeper
 Remote shut-down

6-2 REMOTE EMERGENCY POWER OFF

Pin Assignment:

 Pin 2: TXD (Transmit Data)
 Pin 3: RXD (Receiving Data)
 Pin 5: GND (Signal Ground)
 Pin 7: PNP (Signal Receivin

Hardware:

 Baud Rate ----------------2400 bps
 Data Length -------------- 8 bits
 Stop Bit ------------------ 1 bit
 Parity --------------------- NONE

Pin Assignment of RJ11:

12V

1
2

3
4
5

6

X

X

1

2

3

4

5

6

If short pin (2, 3) or pin (2, 5) or pin (4, 5) or pin (4, 3), then the UPS will be powered off.

NOTE: This port must not be connected to the Telecom Port.

20

6-3 DRY CONTACT

The sub-D communication port (9-pin female type) is used for powering on/off the UPS by
external control signal. UPS can also transmit its status through this port. Refer to the
following Dry contact table.

State

Normal

Pin

Pin 8, 3 Pin 1,3 Pin 6, 3 Pin 5, 3 Pin 2, 3

Open Open Open
Back up Close
Low Battery Close
Fault Close
Bypass Close Open
Inverter Open Close

NOTE: means the state may be “Open” or ” Close”.

Pin Assignment:

LOW BATTERY

THE CAPACITY OF

DRY CONTACT:

AC 250V/8A

DC 12V

NO

NCCOM

NO

COM NC

NO

BYPASS

INVERTER

Fig. 5-2

NCCOM

Imin.> 3.3mA

REMOTE SHUTDOWN

SIGNAL FROM

EXTERNAL

>2 sec

12 V

±3V

0

21

6-4 SNMP CARD (OPTIONAL)

SNMP network interface is a powerful tool for remote control and UPS monitoring.

NOTE: For more information on SNMP CARD, contact your local dealer.

EMERGE NCY
POWER OFF

BATT. NO.

RS-232

DRY
CONTACT

SNMP

BYPASS

MANUAL BYPASS

INPUT

BREAKER

240VDC 35.6A

22

6-5 DETECTION FOR QUANTITY OF EXTERNAL BATTERY PACK

When the UPS is connected with Delta’s standard battery packs, you can detect the total battery
capacity by linking the UPS to the battery pack.

NOTE: This function can detect maximum two external battery packs.

UPSBATTERY 1BATTERY 2

23

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