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Chapter 5 : Installation and Wiring

Step 4

Make sure that the Input Switch (Q1), Bypass Switch (Q2), Manual Bypass Switch (Q3)

and the Output Switch (Q4) are in the OFF position.

Step 5

Make sure that each external battery cabinet’s breaker (Q5) is in the OFF position.

Step 6

Follow Table 5-2 to select proper input, output, and battery cables.

Step 7

Connect the cables of the main AC source, output and external battery cabinet(s) to

the UPS. Please refer to Table 5-3, 5.6 External Battery Cabinet Connection Warnings

and the following diagram to perform wiring.

Figure 5-6: Single Unit Single Input Wiring Diagram

Step 8

Follow the table below to select proper Protective Earth (PE) cables to ground the UPS,

external battery cabinet(s) and connected critical loads. The table is in accordance

with IEC 60364-5-54 (Article 543 and Table 54.2). The grounding diagram below is for

reference.

Main AC Source

Loads

Connect to the Same Model of

UPS(s) for Parallel Application

Input Switch (Q1)

Manual Bypass

Switch (Q3)

Output Switch

(Q4)

AC Input Terminals

(L1/ L2/ L3/ N)

UPS Output Terminals

(L1/ L2/ L3/ N)

Battery Input

Terminals (+/ -/ N)

External Battery Cabinet

Bypass Switch (Q2) Bypass Input Terminals

(L1/ L2/ L3/ N)

Delta UPS DPH 60-400/ 500/ 600 kVA 52

DPH Series

UPS Capacity 400kVA/ 400kW 500kVA/ 500kW 600kVA/ 600kW

Suggested

PE Cable

Size

Input

240 mm2 × 1 PC

(500 kcmil × 1 PC)

300 mm2 × 1 PC

(600 kcmil × 1

PC)

240 mm2 × 2 PCS

(500 kcmil × 2 PCS)

Bypass

185 mm2 × 1 PC

(400 kcmil × 1 PC)

240 mm2 × 1 PC

(500 kcmil × 1 PC)

185 mm2 × 2 PCS

(400 kcmil × 2 PCS)

Output

185 mm2 × 1 PC

(400 kcmil × 1 PC)

240 mm2 × 1 PC

(500 kcmil × 1 PC)

185mm2 × 2 PCS

(400 kcmil × 2 PCS)

Battery

300 mm2 × 1 PC

(600 kcmil × 1 PC)

240 mm2 × 2 PCS

(500 kcmil × 2

PCS)

240 mm2 × 2 PCS

(500 kcmil × 2 PCS)

Maximum Cable Lug

Width 50 mm (1.97\")

Cable Lug Gap/ Inner

Diameter 44.5mm (1.75\") / 14mm (0.55\")

Screw Size M12

Tightening Torque M12 = 500 ± 10 kgf-cm (434 ± 8.7 lb-in)

Terminal Type*1 TLAPH-2A

NOTE:

The suggested manufacturer is K.S. TERMINALS INC. You may use

equivalent terminals provided by other manufacturers

Figure 5-7: Grounding Diagram_ Single Unit

Load Load External Distribution

Panel

Load Grounding

External

Battery

Cabinet

Load Grounding

UPS Grounding

External Battery

Cabinet Grounding

Protective Earthing

Chapter 5 : Installation and Wiring

5.5.3.2 Dual Input (Single Unit)

When there are two AC power sources, single unit wiring procedures are as follows.

Step 1

Follow 5.5.2 Single Input to Dual Input Modification to modify the UPS from single input

to dual input.

Step 2

The UPS ONLY allows top cable entry. Please leave adequate space above the UPS.

Step 3

Remove the upper back panel, you can see the wiring terminals. Please refer to Figure

2-6.

Step 4

Remove the top covers (1, 2, 3, 4) shown in the following figure

Figure 5-8: Location of the Top Covers

Remove the Top

Covers (1, 2, 3 & 4)

Delta UPS DPH 60-400/ 500/ 600 kVA 54

Step 5

Make sure that the Input Switch (Q1), Bypass Switch (Q2), Manual Bypass Switch (Q3)

and the Output Switch (Q4) are in the OFF position.

Step 6

Make sure that each external battery cabinet’s breaker (Q5) is in the OFF position.

Step 7

Follow Table 5-2 to select proper input, output, and battery cables.

Step 8

Connect the cables of the main AC source, bypass source, output and external battery

cabinet(s) to the UPS. Please refer to Table 5-3, 5.6 External Battery Cabinet

Connection Warnings and the following diagram to perform wiring.

Figure 5-9: Single Unit Dual Input Wiring Diagram

Step 9

Refer to Figure 5-7 to ground the UPS, external battery cabinet(s) and connected

critical loads.

Main AC Source

Loads

Connect to the Same Model of

UPS(s) for Parallel Application

Input Switch

(Q1)

Manual Bypass

Switch (Q3)

Output Switch

(Q4)

AC Input Terminals

(L1/ L2/ L3/ N)

UPS Output Terminals

(L1/ L2/ L3/ N)

Battery Input

Terminals (+/ -/ N)

External Battery Cabinet

Bypass AC Source Bypass Switch

(Q2)

Bypass Input Terminals

(L1/ L2/ L3/ N)

Chapter 5 : Installation and Wiring

5.5.4 Parallel Units Wiring

NOTE:

1. Up to eight UPS units can be paralleled for redundancy and capacity

expansion. Only the UPSs with the same capacity, voltage, frequency and

version can be paralleled. Please only use the provided parallel cable to

parallel the UPS units. Otherwise, parallel functions will fail.

2. When the UPSs are paralleled, the length of each unit’s bypass input

cables plus output cables must be the same. This ensures that the

parallel UPSs can equally share the critical loads in Bypass mode.

3. Before wiring, please read 5.5 Wiring thoroughly and make sure that

relevant conditions have been met.

Step 1

For single input, follow Step 1 ~ Step 7 mentioned in 5.5.3.1 Single Input (Single Unit).

For dual input, follow Step 1 ~ Step 8 mentioned in 5.5.3.2 Dual Input (Single Unit).

Step 2

Use the provided parallel cables*1

to connect the parallel ports of the parallel units.

Please adopt the Daisy Chain method shown in the figure below. For the parallel port

location, refer to Figure 4-1.

NOTE:

One parallel cable is provided in each UPS’s accessory package.

Delta UPS DPH 60-400/ 500/ 600 kVA 56

Figure 5-10: Parallel Port Connection_ Daisy Chain Method

Step 3

Follow the table below to select proper Protective Earth (PE) cables to ground the

parallel UPS units, external battery cabinet(s) and connected critical loads. The table

is in accordance with IEC 60364-5-54 (Article 543 and Table 54.2). The grounding

diagram below is for reference.

DPH Series

UPS Capacity 400kVA/ 400kW 500kVA/ 500kW 600kVA/ 600kW

Suggested

PE Cable

Size

Input

240 mm2 × 1 PC

(500 kcmil × 1

PC)

300 mm2 × 1 PC

(600 kcmil × 1 PC)

240 mm2 × 2 PCS

(500 kcmil × 2 PCS)

Bypass

185 mm2 × 1 PC

(400 kcmil × 1

PC)

240 mm2 × 1 PC

(500 kcmil × 1 PC)

185 mm2 × 2 PCS

(400 kcmil × 2 PCS)

Output

185 mm2 × 1 PC

(400 kcmil × 1

PC)

240 mm2 × 1 PC

(500 kcmil × 1 PC)

185mm2 × 2 PCS

(400 kcmil × 2 PCS)

Battery

300 mm2 × 1 PC

(600 kcmil × 1 PC)

240 mm2 × 2 PCS

(500 kcmil × 2 PCS)

240 mm2 × 2 PCS

(500 kcmil × 2 PCS)

Maximum Cable Lug

Width 50 mm (1.97\")

Cable Lug Gap/ Inner

Diameter 44.5mm (1.75\") / 14mm (0.55\")

Screw Size M12

Tightening Torque M12 = 500 ± 10 kgf-cm (434 ± 8.7 lb-in)

Terminal Type*1 TLAPH-2A

Parallel Cable

(1st UPS)

Parallel Ports

(Last UPS)

Parallel Ports

(Middle UPS(s))

Parallel Ports

Chapter 5 : Installation and Wiring

NOTE:

The suggested manufacturer is K.S. TERMINALS INC. You may use

equivalent terminals provided by other manufacturers.

Figure 5-11: Grounding Diagram_ Parallel Units

WARNING:

Before start-up of the parallel units, qualified service personnel must set each

UPS’s 'Parallel Group ID' (1 or 2) and 'Parallel ID' (1 ~ 8) through the LCD.

Otherwise, the parallel UPSs cannot be started. Please refer to 7.6.5 Parallel

Setting.

5.6 External Battery Cabinet Connection Warnings

NOTE:

1. The information of the battery parameters in this chapter may not be

applicable to the lithium-ion batteries. For relevant information, please

refer to the manual of the lithium-ion batteries.

2. Whether you use the lead-acid batteries or the lithium-ion batteries,

please contact Delta service personnel for any battery/ battery cabinet’s

setup and configurations.

Load Load External Distribution

Panel

Load Grounding

External

Battery

Cabinet

Load Grounding UPS Grounding

External Battery Cabinet Grounding

Protective Earthing

External

Battery

Cabinet

External Battery Cabinet Grounding

UPS Grounding

Delta UPS DPH 60-400/ 500/ 600 kVA 58

WARNING:

1. Before performing battery/ battery cabinet installation, wiring and

replacement, please turn off each external battery cabinet’s breaker (Q5)

to completely disconnect the battery power from the UPS.

2. A battery can present a risk of electric shock and high short-circuit

current. Servicing of batteries and battery cabinets must be performed

or supervised by qualified service personnel knowledgeable in batteries,

battery cabinets and the required precautions. Keep unauthorized

personnel away from batteries and battery cabinets.

You should connect the UPS with at least one external battery cabinet to ensure that

the connected critical loads are protected when a power failure occurs. You can

connect up to four units of external battery cabinets to the UPS.

• To ensure that the batteries are fully charged, please charge the batteries for at

least 8 hours before initial use of the UPS. The charging procedures are as follows.

1. Connect the UPS to the main AC source and the external battery cabinet(s).

Please refer to 5.5 Wiring.

2. Follow 6. UPS Operation to turn on the external battery cabinet(s). After that,

the batteries will be automatically charged.

WARNING:

You can connect the critical loads to the external maintenance bypass

cabinet only after the batteries are fully charged. This guarantees that

the external maintenance bypass cabinet can provide sufficient

backup power to the critical loads connected when a power failure

occurs.

• To connect the external battery cabinet(s) to the UPS, please refer to 5.5 Wiring.

• For the external battery cabinet’s grounding information, please refer to Figure 5-

7 and Figure 5-11.

• Battery Parameters

No. Item Description

1 Charge Voltage

Float charge voltage: 272 Vdc (default)

Equalized charge voltage: 280 Vdc (default)

2 Charge Current

Default: ±6A (per power module)

Maximum: ±15A (per power module)

3 Low Battery Shutdown Voltage 210 Vdc (default)

4 Battery Quantity 12V × 40 PCS (default)

Chapter 5 : Installation and Wiring

• The charge current is adjustable from 6A to the maximum, 1A per step.

• If you need to modify the default charge current setting and default low battery

shutdown setting, please contact your local dealer or service personnel.

• Follow on-site requirements to choose 12V × 30/ 32/ 34/ 36/ 38/ 40/ 42/ 44/ 46

PCS of batteries. Change of the battery quantity will influence the applied

specifications. For battery selection, installation and replacement, please contact

your local dealer or customer service.

• You must set up the ‘Battery Rating Voltage’, ‘Battery Strings’ and ‘Capacity’ on the

LCD according to on-site application. Otherwise, the batteries will be overcharged, not fully charged or even seriously damaged.

• Only use the same type of batteries from the same supplier. Never use old, new

and different Ah batteries at the same time.

• The number of batteries must meet the UPS requirements.

• Do not connect the batteries in reverse.

• Use a voltage meter to measure whether the total voltage is around 12.5 Vdc × the

total number of batteries after the batteries are connected in series.

• The default battery quantity is 40 PCS of 12V batteries connected in series. The

external battery cabinet’s neutral (N) is to be connected to the middle of the 20th

and 21st batteries.

Figure 5-12: External Battery Cabinet Connection

WARNING:

The electrolyte leakage of the batteries can lead to serious accidents. For

safety’s sake, you must insulate the batteries properly (using insulated

trays or boxes) from the metal cabinets and racks.

Delta UPS DPH 60-400/ 500/ 600 kVA 60

• Installation of the External Battery Cabinet’s Protective Device

Please follow your UPS’s rating to install an appropriate protective device for each

external battery cabinet. There are two installation methods for selection.

(1) A 4-pole DC circuit breaker or DC isolated switch connected in series with DC

fuses

(2) A 3-pole DC circuit breaker or DC isolated switch connected in series with DC

fuses

For relevant values, please refer to Table 5-4; for installation diagrams, please refer to

Figure 5-13 ~ Figure 5-14.

Table 5-4: External Battery Cabinet’s Protective Device (Default Battery Q’ty: 12 Vdc ×

40 PCS)

UPS Capacity Protective Device’s

Current Protective Device’s Voltage

400kVA/ 400kW 1000A • 4-pole DC isolated switch/

DC circuit breaker: voltage

per pole ≥ 250 Vdc.

• 3-pole DC isolated switch/

DC circuit breaker: voltage

per pole ≥ 500 Vdc

• DC fuse: voltage ≥ 500 Vdc

500kVA/ 500kW 1250A

600kVA/ 600kW 1600A

NOTE:

1. Table 5-4 is for 12 Vdc × 40 PCS of batteries (default). If you install a

different number of batteries, please contact Delta service personnel for

the protective device’s current and voltage.

2. If you need to parallel multiple units of external battery cabinets, please

contact Delta service personnel for relevant information.

3. To extend backup time, you can parallel up to four units of external

battery cabinets to the UPS. Please note that (1) the number of the

batteries in each paralleled external battery cabinet and (2) the cable

length of each battery string must be the same.

• When choosing the external battery cabinet’s protective device, please take the

following factors into consideration: (1) overcurrent between the UPS and battery

circuit, (2) short circuit current of the batteries, (3) wire/ cable materials, and (4)

local electrical regulations. If you have any questions about the external battery

cabinet’s protective device, please contact Delta service personnel.

Chapter 5 : Installation and Wiring

• The protective device is optional, and its type must be fast-acting DC circuit

breaker and/ or fast-acting DC fuse. If you want to buy any of them, please contact

Delta service personnel. When choosing the protective device, please follow the

instructions below.

(1) The protective device’s rated current must comply with the current values

shown in Table 5-4.

(2) The specifications of the protective device’s short-circuit protection (i.e. the

tripping current of the fast-acting DC circuit breaker and/ or the melting current

of the fast-acting DC fuse) must be 3 ~ 6 times the values shown in Table 5-4.

Besides, the response time of the protective device must be less than 20ms.

(3) For the choice of the fast-acting DC fuse mentioned above, the A50QS series

from the supplier Ferraz Shawmut is suggested. Please contact Delta customer

service for relevant information.

(4) The maximum tripping current of the fast-acting DC circuit breaker and/ or the

maximum melting current of the fast-acting DC fuse mentioned above are3 ~

8 times as much as the values shown in Table 5-4. These maximum values are

suggested for general applications only. For the actual maximum values, the

maximum short-circuit capacity of the on-site batteries must be taken into

consideration. Please contact Delta customer service for relevant information.

External Battery Cabinet’s Protective Device (Option 1)

Figure 5-13: Installation of a 4-pole DC Circuit Breaker or DC Isolated Switch

Connected in Series with DC Fuses

DC Fuses 4-Pole DC Circuit Breaker

or DC Isolated Switch

Delta UPS DPH 60-400/ 500/ 600 kVA 62

External Battery Cabinet’s Protective Device (Option 2)

Figure 5-14: Installation of a 3-pole DC Circuit Breaker or DC Isolated Switch

Connected in Series with DC Fuses

• Common Battery (Only for Parallel UPSs Sharing the Same External Battery

Cabinet(s))

To save on your costs and installation space, the parallel UPSs can share their

connected external battery cabinet(s). See Figure 5-15 for two parallel UPSs sharing

one external battery cabinet as an example.

NOTE:

The following ‘common battery’ information is not applicable to the UPS using

lithium-ion batteries. For relevant information, please refer to the user manual

of the lithium-ion batteries. Whether you use the lead-acid batteries or the

lithium-ion batteries, please contact Delta service personnel for any battery/

battery cabinet’s setup and configurations.

For common battery application, please install a protective device between each

parallel UPS and its connected external battery cabinet(s). You have to use the LCD to

set each UPS’s ‘Float Charge Voltage’ (default: 544V) the same, ‘Equalized Charge

Voltage’ (default: 560V) the same, ‘Battery Strings’ even and ‘Charge Current (Max)’

even. Please refer to the examples below and 7. LCD Display & Settings.

Example I

When (1) two UPSs are paralleled and share one external battery cabinet, (2) lead-acid

batteries are used, (3) the battery capacity is 200AH, (4) there are a total of 4 battery

strings, and (5) the charge current is 80A, please use the LCD to set each UPS’s

‘Battery Type’ as ‘VRLA’, ‘Capacity’ as 200AH, ‘Battery Strings’ as 2, and ‘Charge Current

(Max)’ as 40A.

DC Fuses 3-Pole DC Circuit Breaker

or DC Isolated Switch

Chapter 5 : Installation and Wiring

Example II

When (1) three UPSs are paralleled and share one external battery cabinet, (2) leadacid batteries are used, (3) the battery capacity is 300AH, (4) there are a total of 3

battery strings, and (5) the charge current is 90A, please use the LCD to set each

UPS’s ‘Battery Type’ as ‘VRLA’, ‘Capacity’ as 300AH, ‘Battery Strings’ as 1, and ‘Charge

Current (Max)’ as 30A.

Figure 5-15: Common Battery Diagram

• External Battery Cabinet Alarm

When any external battery cabinet connected to the UPS has the following problems,

the UPS system will sound an alarm. Please see the table below.

No. External Battery Cabinet Status Alarm

1 Battery Abnormal - Reversed It sounds 50 ms every second.

2 Battery Ground Fault It sounds 50 ms every second.

3 Battery Over Temperature It sounds 50 ms every second.

BYPAS

MAIN

Static Switch

Rectifier Inverter

BYPAS

MAIN

Static Switch

Rectifier Inverter

LOAD

Batteries

Delta UPS DPH 60-400/ 500/ 600 kVA 64

No. External Battery Cabinet Status Alarm

4 Battery Under Temperature It sounds 50 ms every second.

5 Battery Breaker Off It sounds 50 ms every 3 seconds.

6 Battery Disconnected (Missing) It sounds once every second.

7 Battery Over Charged Long beep.

8 Battery Test Fail It sounds 50 ms every second.

9 Battery End of Discharge Imminent It sounds 50 ms every second.

10 Battery End of Discharge Long beep.

11 Battery Life Time Expired It sounds 50 ms every 3 seconds.

5.7 STS Module

The hot swappable STS module has been installed in the UPS by default. Please refer

to Figure 5-16 for its location.

Figure 5-16: STS Module Location

STS Module

Chapter 5 : Installation and Wiring

For STS module illustration, please refer to Figure 5-17.

Figure 5-17: STS Module

5.7.1 STS Module Installation

WARNING:

1. Only qualified service personnel can perform the following STS module

installation procedures.

2. The STS module is heavy (38.0 kg (83.78 lb)). At least two people are

required for handling.

Step 1

Confirm that the STS module’s switch is in the lower position ( ) and the pullers are

in the open status.

Figure 5-18: Confirm the STS Module’s Switch in the Lower Position

LED Indicator

Lower Handle

Lock

Upper Handle

Puller

Delta UPS DPH 60-400/ 500/ 600 kVA 66

Figure 5-19: Confirm the Pullers in the Open Status

Step 2

Two people work together to insert the STS module into the designed slot. After that,

one person holds the two pullers and push the two pullers inwards in order to push

the module into the end of the UPS cabinet until it snaps into place. Now, the pullers

are all in the closed status.

Figure 5-20: Insert the STS Module into the Slot

Puller

Open Status

Handle

Puller

Handle

Chapter 5 : Installation and Wiring

Step 3

Re-install the four screws (removed during the STS module removal process) to firmly

fix the STS module's ear brackets on the UPS cabinet.

Figure 5-21: Fix the STS Module on the UPS Cabinet

Step 4

Turn the STS module’s switch to the upper position ( ).

Figure 5-22: Turn the STS Module’s Switch to the Upper Position

Delta UPS DPH 60-400/ 500/ 600 kVA 68

5.7.2 STS Module Removal

WARNING:

1. Only qualified service personnel can perform the following STS module

installation procedures.

2. The STS module is heavy (38.0 kg (83.78 lb)). At least two people are

required for handling.

Step 1

Turn the STS module’s switch to the lower position ( ) and wait until the STS

module’s LED indicator becomes off.

Figure 5-23: Turn the STS Module’s Switch to the Lower Position

Step 2

Remove the four screws from the STS module.

Figure 5-24: Remove the Four Screws

Chapter 5 : Installation and Wiring

Step 3

Pull out the STS module from the slot. When the STS module cannot be pulled out any

more, press the lock on the top side of the STS module to continuously pull out the

module from the UPS cabinet.

Figure 5-25: Remove the STS Module

Handle

Puller

Handle

Delta UPS DPH 60-400/ 500/ 600 kVA 70

5.7.3 STS Module’s LED Indicator

The STS module’s LED indicator shows its operation status. Please refer to the

following table.

Figure 5-26: Location of the STS Module’s LED Indicator

LED Indicator Description

OFF The STS module is OFF.

ON (yellow) The STS module is working in Bypass mode,

ECO mode, or energy recycle mode.

Flashing (yellow)_ on for 0.3

seconds and off for 3 seconds The STS module is abnormal.

NOTE:

In bypass mode, if you turn the STS module’s switch to the lower position

( ), the STS module will shut down, and its output and LED indicator will be

off.

LED Indicator

Chapter 5 : Installation and Wiring

5.8 Power Module (Optional)

The power module is optional. Each capacity is 60kVA/ 60kW.

Figure 5-27: Power Module (Optional)

Please see the table below for the power module’s packing list.

No. Item Q’ty

❶ Power Module 1 PC

❷ Ear Bracket 2 PCS

❸ M6 Screw 4 PCS

❹ M4 Screw 8 PCS

LED Indicator

Handle

Switch Fans

Delta UPS DPH 60-400/ 500/ 600 kVA 72

5.8.1 Power Module Installation

After firmly installing the UPS on the designed installation area according to the

instruction stated in 5.4 UPS Installation, continue with the following steps to install

the power module (optional) into the UPS.

WARNING:

1. Only qualified service personnel can perform the following installation

procedures.

2. The power module is heavy (36 kg (79.37 lb)). At least two people are

required for handling.

3. Please follow your UPS capacity to install the correct number of power

modules.

DPH Series

UPS Capacity 400kVA/

400kW

500kVA/

500kW

600kVA/

600kW

Power Module Q’ty 7 9 10

4. Please install the power modules from the top layer of the power module

slot to the bottom layer of the power module slot in sequence.

Step 1

Confirm that the power module’s switch is in the lower position ( ).

Figure 5-28: Confirm the Power Module’s Switch in the Lower Position

Step 2

Take out the two bracket ears, four M6 screws and eight M4 screws from the power

module’s package

Chapter 5 : Installation and Wiring

Step 3

Use the eight M4 screws to fix the two ear brackets on the two sides of the power

module.

Figure 5-29: Install the Two Ear Brackets

Step 4

Insert the power module into the power module slot until it snaps into place. Two

people are required.

Figure 5-30: Insert the Power Module into the Slot

Delta UPS DPH 60-400/ 500/ 600 kVA 74

Step 5

Use the four M6 screws to firmly fix the power module on the UPS cabinet.

Figure 5-31: Fix the Power Module on the UPS Cabinet

Step 6

Turn the power module’s switch to the upper position ( ).

Figure 5-32: Turn the Power Module’s Switch to the Upper Position

Chapter 5 : Installation and Wiring

5.8.2 Power Module Removal

WARNING:

1. Before removing any power module, make sure that the remaining power

module(s) can support the connected critical loads.

2. Only qualified service personnel can perform the following power module

removal procedures.

3. The power module is heavy (36 kg (79.37 lb)). At least two people are

required for handling.

Step 1

Turn the power module’s switch to the lower position ( ) and wait until the power

module’s LED indicator becomes off.

Figure 5-33: Turn the Power Module’s Switch to the Lower Position

Step 2

Remove the four screws from the power module.

Figure 5-34: Remove the Four Screws

Delta UPS DPH 60-400/ 500/ 600 kVA 76

Step 3

Pull out the power module from the slot (Two people are required). When the power

module cannot be pulled out any more, press the lock on the left side of the power

module to continuously pull out the module from the UPS cabinet.

Figure 5-35: Remove the Power Module

Figure 5-36: Press the Lock of the Power Module

Press the Lock

Chapter 5 : Installation and Wiring

5.8.3 Power Module’s LED Indicator

The power module’s LED indicator shows its operation status. Please refer to the

following table.

Figure 5-37: LED Indicator of the Power Module

LED Indicator Description

OFF The power module is OFF.

ON (green)

1. The power module is running in On-Line

mode or Battery mode.

2. The power module’s inverter starts up.

3. The power module’s PFC starts up.

Flashing (green)_ on for 2 seconds

and off for 1 second

The power module is under discharging

process.

Flashing (green)_ on for 0.3 seconds

and off for 3 seconds The power module is abnormal.

NOTE:

In online mode, if you turn the power module’s switch to the lower position

( ), the power module will shut down its output and discharge the DC BUS

voltage until the voltage reaches to a safety level. After that, the power

module’s LED indicator will be off.

LED

Delta UPS DPH 60-400/ 500/ 600 kVA 78

5.9 Installation of Rodent Shields

Table 5-8: Rodent Shields Quantity

Rodent Shields Type A B C D

Quantity 1 PC 1 PC 1 PC 1 PC

Step 1

Install the Rodent Shield A at the front bottom of the UPS and the Rodent Shield B at

the right bottom of the UPS.

Figure 5-38: Install the Rodent Shields A & B

Rodent Shield A

M4 Screw × 6 PCS

Rodent Shield B

M4 Screw × 6 PCS

Chapter 5 : Installation and Wiring

Step 2

Install the Rodent Shield C at the rear bottom of the UPS and the Rodent Shield D at

the left bottom of the UPS.

Figure 5-39: Install the Rodent Shields C & D

Rodent Shield C

M4 Screw × 6 PCS

Rodent Shield D

M4 Screw × 6 PCS

Delta UPS DPH 60-400/ 500/ 600 kVA 80

Chapter 6 : UPS Operation

6.1 Pre Start-up & Pre Turn-off Warnings

NOTE:

1. All LCD diagrams in the user manual are for reference only. The display is

subject to the actual status of the UPS.

2. For information about the LCD touch panel and tri-color LED indicator,

please refer to 2.8 Tri-color LED Indicator & Buzzer and 7. LCD Display &

Settings.

3. If the ON/ OFF Button ( ) does not appear on the screen, please log in

as Administrator first, and then go to → General Setting → User →

On/ Off Button Access to change the setting.

4. The external battery cabinet’s breaker (Q5) shown on the LCD is always

ON by default. To enable the detection of the Q5 status via the LCD,

please contact Delta customer service for additional configurations.

Single Unit

• Pre Start-up Warnings

1. Before UPS operation, ensure that installation and wiring have been completely

done according to 5. Installation and Wiring, and relevant precautions and

instructions have been followed. Make sure that the AC power’s voltage,

frequency, phase sequence and battery type meet the UPS’s requirements.

2. Make sure that all the switches and breakers, including every external battery

cabinet’s breaker (Q5), are in the OFF position.

3. Make sure that the UPS’s voltage difference between the Neutral (N) and

Ground ( ) is < 3V.

ON/ OFF

Button

Chapter 6 : UPS Operation

4. Check if all power modules are properly installed and every power module’s

switch is in the upper position ( ). Please refer to 5.8 Power Module (Optional)

for more information.

• Pre Turn-off Warnings

If you perform turn-off procedures for single unit, all power will be completely cut off.

Please make sure the critical loads connected to the UPS have already been safely

shut down before you perform the turn-off procedures.

Parallel Units

• Pre Start-up Warnings

1. You can parallel a maximum of eight UPS units.

2. For parallel units, ensure that each parallel cable (provided) is connected well.

3. Make sure that all the switches and breakers, including every external battery

cabinet’s breaker (Q5), are in the OFF position.

4. Make sure that the UPS’s voltage difference between the Neutral (N) and

Ground ( ) is < 3V.

5. Check if the wiring is correct. Ensure that the AC power’s voltage, frequency,

phase sequence and battery type meet the UPS’s requirements.

6. Check if all power modules are properly installed and every power module’s

switch is in the upper position ( ). Please refer to 5.8 Power Module (Optional)

for more information.

7. For parallel units, ensure that every operation procedure is synchronized to all

parallel UPSs.

8. For parallel application, if you just want to operate a specific UPS but not all

parallel ones, please contact service personnel.

• Pre Turn-off Warnings

1. If you want to turn off one of the parallel UPSs, please check whether the

remaining parallel units’ total capacity exceeds the total critical loads. If the

remaining parallel units’ total capacity is less than the total critical loads, all

parallel units will shut down due to overload.

2. If you perform turn-off procedures for all parallel UPSs, all power will be

completely cut off. Please make sure that the critical loads connected to the

parallel UPSs have already been safely shut down before you perform the turnoff procedures.

Delta UPS DPH 60-400/ 500/ 600 kVA 82

6.2 Start-up Procedures

6.2.1 On-Line Mode Start-up Procedures

WARNING:

Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Ensure that the Manual Bypass Switch (Q3) is in the OFF position.

Step 2

Switch ON every external battery cabinet’s breaker (Q5).

Step 3

Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).

Step 4

Tap the ON/ OFF Button ( ) on the LCD screen.

Step 5

After the inverter turns on, each power module will start up and perform selfinspection. At the same time, At the same time, the system begins synchronization

with the bypass AC source. After the self-inspection is completed, the UPS will

automatically transfer to run in On-Line mode, the tri-color LED indicator will illuminate

green and the following screen will appear.

Chapter 6 : UPS Operation

6.2.2 Battery Mode Start-up Procedures

WARNING:

Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Ensure that the Manual Bypass Switch (Q3) is in the OFF position.

Step 2

Switch ON every external battery cabinet’s breaker (Q5) and output Switch (Q4).

Step 3

Press any of the BATT. START buttons on the Communication Interfaces I for one

second.

Step 4

Tap the ON/ OFF Button ( ) on the LCD screen.

Step 5

After the inverter turns on, each power module will start up and perform selfinspection and the LED indicator of the power module will illuminate green. After the

self-inspection is completed, the UPS will automatically transfer to run in Battery

mode. At this moment, the tri-color LED indicator illuminates yellow and the following

screen appears.

Delta UPS DPH 60-400/ 500/ 600 kVA 84

6.2.3 Bypass Mode Start-up Procedures

WARNING:

Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Ensure that the Manual Bypass Switch (Q3) is in the OFF position.

Step 2

Switch ON every external battery cabinet’s breaker (Q5).

Step 3

Switch ON the Input Switch (Q1) and Bypass Switch (Q2).

Step 4

For parallel application, please check each parallel UPS’s parallel settings. Please note

that each parallel UPS’s parallel ID No. must be different, and parallel group ID No.,

input, output and battery settings must be the same.

Step 5

For parallel application, tap the icon ( ) located in the upper left corner of the screen

and check if the parallel group ID No. and parallel ID No. of the parallel UPSs are

correct. The UPS with the smallest parallel ID No. is defined as the master unit. Please

refer to below Figure.

Parallel Group

ID No.

Parallel ID No.

Chapter 6 : UPS Operation

Step 6

For single unit, turn ON the Output Switch (Q4).

For parallel units, ensure that the output voltage difference between each parallel UPS

is below 3V. If larger than 3V, it is abnormal; please contact service personnel

immediately. If below 3V, turn ON each parallel UPS’s Output Switch (Q4).

Now, the tri-color LED indicator illuminates yellow and the LCD shows the following

screen.

6.2.4 Manual Bypass Mode Start-up Procedures

WARNING:

1. Before turning on/ off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions

have been followed.

2. In Manual Bypass Mode, make sure that all of the switches/ breakers

(except for Manual Bypass Switch (Q3)) are in the OFF position before

working on the UPS’s internal circuits to prevent electric shock. DO NOT

touch any external maintenance bypass cabinet’s terminal and bus bar

which may carry high-voltage electricity.

• From On-Line Mode to Manual Bypass Mode

Step 1

Tap the ON/ OFF Button ( ) on the LCD screen to shut down the inverter.

Step 2

Ensure that the UPS runs in Bypass mode. After confirmation, turn ON the Manual

Bypass Switch (Q3).

Delta UPS DPH 60-400/ 500/ 600 kVA 86

Step 3

Switch OFF the Output Switch (Q4), Input Switch (Q1) and Bypass Switch (Q2). After

that, the LCD screen shows as follows.

Step 4

When the UPS performs DC BUS discharging, each power module’s LED indicator

flashes green. After discharging, each power module’s LED indicator will be off. About

three minutes later, the UPS will shut down, and the LCD and the tri-color LED will be

off.

Step 5

Switch OFF every external battery cabinet’s breaker (Q5).

• From Manual Bypass Mode to On-Line Mode

Step 1

Switch ON every external battery cabinet’s breaker (Q5).

Step 2

Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).

Step 3

Switch OFF the Manual Bypass Switch (Q3).

Step 4

Tap the ON/ OFF Button ( ) on the LCD screen.

Chapter 6 : UPS Operation

Step 5

After the inverter turns on, the UPS will run in On-Line mode, the LCD screen will show

as below, and the tri-color LED indicator will illuminate green.

6.2.5 ECO Mode Start-up Procedures

WARNING:

Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Ensure that the Manual Bypass Switch (Q3) is in the OFF position.

Step 2

Switch ON every external battery cabinet’s breaker (Q5).

Step 3

Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).

If the bypass input is within the normal range, the UPS will run in Bypass mode.

Delta UPS DPH 60-400/ 500/ 600 kVA 88

Step 4

personnel.

Step 5

Go to SETUP → Mode Setting → Select ECO.

Step 6

Tap the icon ( ) to go back to the Main Screen and tap the ON/ OFF Button ( ).

Administrator Login

Chapter 6 : UPS Operation

Step 7

After the inverter turns on and the system confirms that the bypass voltage is normal,

the UPS will automatically transfer to ECO mode to let the bypass supply power, the

LCD screen will show as below, and the tri-color LED indicator will illuminate green.

6.2.6 Frequency Conversion Mode Start-up Procedures

WARNING:

1. Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions

have been followed.

2. Frequency Conversion mode is only applicable to single UPS but not to

parallel UPSs.

3. When the UPS runs in Frequency Conversion mode, once the inverter

becomes off, there is no bypass power supplying to the loads.

Step 1

Ensure that the Manual Bypass Switch (Q3) is in the OFF position.

Step 2

Switch ON every external battery cabinet’s breaker (Q5).

Step 3

Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).

If the bypass input is within the normal range, the UPS will run in Bypass mode.

Delta UPS DPH 60-400/ 500/ 600 kVA 90

Step 4

personnel.

Step 5

Go to SETUP → Mode Setting → Select Frequency Conversion.

WARNING:

Once you select 'Frequency Conversion' mode, the UPS will run in Standby

mode and the output will be terminated.

Step 6

Tap the icon ( ) to go back to the Main Screen and tap the ON/ OFF Button ( ).

ON/ OFF

Button

Administrator Login

Chapter 6 : UPS Operation

Step 7

After the inverter turns on, the UPS will run in Frequency Conversion mode, the output

frequency will be the same as the setup value, the LCD screen will show as below, and

the tri-color LED indicator will illuminate green.

6.2.7 Green Mode Start-up Procedures

WARNING:

1. Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions

have been followed.

2. For parallel units, ensure that every operation procedure mentioned

below is synchronized to all parallel UPSs.

Step 1

Ensure that the Manual Bypass Switch (Q3) is in the OFF position.

Step 2

Switch ON every external battery cabinet’s breaker (Q5).

Step 3

Switch ON the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).

If the bypass input is within the normal range, the UPS will run in Bypass mode.

Delta UPS DPH 60-400/ 500/ 600 kVA 92

Step 4

personnel.

Step 5

Go to SETUP → Mode Setting → Select Green.

Step 6

Tap the icon ( ) to go back to the Main Screen and tap the ON/ OFF Button ( ).

Step 7

Now, the UPS automatically transfers to run in Green mode and the system automatically

detects the output status (i.e. total load capacity %) to decide which specific power

module(s) should be fully powered on or idle in order to achieve higher efficiency of the

UPS. The LCD screen shows as below, and the tri-color LED indicator illuminates green.

Administrator Login

Chapter 6 : UPS Operation

6.2.8 Energy Recycle Mode Start-up Procedures

WARNING:

Energy Recycle mode is only applicable to single input and single unit

application.

Step 1

Ensure that the Manual Bypass Switch (Q3), Output Switch (Q4) and every external

battery cabinet’s breaker (Q5) are in the OFF position.

Step 2

Switch ON the Input Switch (Q1) and Bypass Switch (Q2).

Step 3

personnel. Administrator Login

Delta UPS DPH 60-400/ 500/ 600 kVA 94

Step 4

Go to SETUP → Mode Setting → select Energy Recycle.

Step 5

Tap the icon ( ) to go back to the Main Screen and tap the ON/ OFF Button ( ).

Step 6

After the inverter turns on, the UPS will run in Energy Recycle mode and perform selfaging test. The LCD screen shows as below, and the tri-color LED indicator illuminates

yellow.

Chapter 6 : UPS Operation

6.3 Turn-off Procedures

6.3.1 On-Line Mode Turn-off Procedures

WARNING:

Before turning off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Tap the ON/ OFF Button ( ) to shut down the UPS’s inverter. After that, the UPS will

let the bypass AC source supply power. At the moment, if the bypass is abnormal,

there is a risk of output interruption.

Step 2

Switch OFF the external maintenance bypass cabinet’s Input Breaker or Switch (Q1)

and Bypass Breaker or Switch (Q2). After that, the UPS will transfer to Standby mode.

Step 3

Wait for the UPS to complete the DC BUS discharging. After that, switch OFF each

external battery cabinet's breaker (Q5), and the LCD screen and tri-color LED indicator

will be off.

6.3.2 Battery Mode Turn-off Procedures

WARNING:

Before turning off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Tap the ON/ OFF Button ( ) to shut down the UPS’s inverter. Note that once you turn

off the inverter, all the output power will be completely cut off, and the UPS will transfer

to Standby mode.

Step 2

Switch OFF the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4).

Step 3

Wait for the UPS to complete the DC BUS discharging. After that, switch OFF each

external battery cabinet's breaker (Q5), and the LCD and tri-color LED indicator will be

off.

Delta UPS DPH 60-400/ 500/ 600 kVA 96

6.3.3 Bypass Mode Turn-off Procedures

WARNING:

Before turning off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Switch OFF the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4). After

that, the UPS will run in Standby mode.

Step 2

Wait for the UPS to complete the DC BUS discharging. After that, switch OFF each

external battery cabinet's breaker (Q5), and the LCD and tri-color LED indicator will be

off.

6.3.4 Manual Bypass Mode Turn-off Procedures

WARNING:

1. Ensure that the LCD, all LED indicators and fans are OFF.

2. Check that all the switches, breakers and power are OFF.

In Manual Bypass mode, the LCD and tri-color LED indicator are both OFF. To

completely shut down the UPS, switch OFF the Manual Bypass Switch (Q3).

6.3.5 ECO Mode Turn-off Procedures

WARNING:

Before turning off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Tap the ON/ OFF Button ( ) to shut down the UPS’s inverter. After that, the UPS will

let the bypass AC source supply power. At the moment, if the bypass is abnormal,

there is a risk of output interruption.

Step 2

personnel.

Chapter 6 : UPS Operation

Step 3

Go to SETUP → Mode Setting → On-Line.

Step 4

Switch OFF the Input Switch (Q1), Bypass Switch (Q2) and Output Switch (Q4). After

that, the UPS will run in Standby mode.

Step 5

Wait for the UPS to complete the DC BUS discharging. After that, switch OFF each

external battery cabinet's breaker (Q5), and the LCD and tri-color LED indicator will be

off.

6.3.6 Frequency Conversion Mode Turn-off Procedures

WARNING:

Before turning off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Please make sure that the critical loads connected to the UPS have already been safely

shut down. After confirmation, tap the ON/ OFF Button ( ) to shut down the UPS’s

inverter. Note that once you turn off the inverter, all the output power will be

completely cut off, and the UPS will transfer to Standby mode. Now, the power

modules keep charging the batteries.

Step 2

Switch OFF the Output Switch (Q4).

Delta UPS DPH 60-400/ 500/ 600 kVA 98

Step 3

personnel.

Step 4

Go to SETUP → Mode Setting → On-Line.

Step 5

Switch OFF the Input Switch (Q1) and Bypass Switch (Q2) and the UPS will transfer

to Standby mode.

Step 6

Wait for the UPS to complete the DC BUS discharging. After that, switch OFF each

external battery cabinet's breaker (Q5), and the LCD and tri-color LED indicator will be

off.

6.3.7 Green Mode Turn-off Procedures

WARNING:

Before turning off the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions have

been followed.

Step 1

Please make sure that the critical loads connected to the UPS have already been safely

shut down. After confirmation, tap the ON/ OFF Button ( ) to shut down the UPS’s

inverter. After that, the UPS will let the bypass AC source supply power. At the

moment, if the bypass is abnormal, three is a risk of output interruption.

Step 2

Switch OFF the Output Switch (Q4).

Chapter 6 : UPS Operation

Step 3

personnel.

Step 4

Go to SETUP → Mode Setting → On-Line.

Step 5

Switch OFF the Input Switch (Q1) and Bypass Switch (Q2). After that, the UPS will

run in Standby mode.

Step 6

Wait for the UPS to complete the DC BUS discharging. After that, switch OFF each

external battery cabinet's breaker (Q5), and the LCD and tri-color LED indicator will be

off.

6.3.8 Energy Recycle Mode Turn-off Procedures

WARNING:

1. Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions

have been followed.

2. Energy Recycle mode is only applicable to single input and single unit

application.

Step 1

Tap the ON/ OFF Button ( ) to shut down the UPS’s inverter. After that, the UPS will

stop self-aging test and transfer to run in Bypass mode.

Delta UPS DPH 60-400/ 500/ 600 kVA 100

Step 2

Please log in as an Administrator. For the Administrator password, please contact

service personnel.

Step 3

Go to SETUP → Mode Setting → On-Line.

Step 4

Switch OFF the Input Switch (Q1) and Bypass Switch (Q2). After that, the UPS will be

off and the LCD and tri-color LED indicator will be off.

6.4 Start-up & Turn off Procedures for Parallel Units

WARNING:

1. Before turning on the UPS, please read 6.1 Pre Start-up & Pre Turn-off

Warnings thoroughly and ensure that the precautions and instructions

have been followed.

2. Ensure that every operation procedure is synchronized to all parallel

UPSs. If you just want to operate a specific UPS but not all the parallel

ones, please contact service personnel.

• Start-up Procedures (Parallel Units)

Step 1

Ensure that each parallel cable (provided) is connected well.

Step 2

Perform the first few steps following your chosen mode’s section in 6.2 Start-up

Procedures until there is power supplying to the UPS (after switching ON Q1/ Q2 or

pressing the BATT. START button).

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