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Hardware Description

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Hardware Description
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
ETP4830-4815AF Power System

ETP4830-4815AF Power System

The ETP4830-4815AF external power system converts input 220 V AC power to -53.5 V DC power and supplies power to the NE. When the 220 V AC input power supply fails, the ETP4830-4815AF automatically supplies to the NE the backup power of storage batteries. An ETP4830-4815AF power system consists of a rectifier module, monitoring module, and AC/DC power distribution frame.

Appearance

Figure 7-11 and Table 7-7 show the appearance and structure of an ETP4830-4815AF, respectively.

Figure 7-11 Appearance of an ETP4830-4815AF

Interfaces on the monitoring module are reserved temporarily. Do not use these interfaces. Otherwise, the power system may be reset or damaged.

Table 7-7 Structure of an ETP4830-4815AF

Component

Description

Rectifier module

Converts AC power to DC power. One or two rectifier modules can be configured in an ETP4830-4815AF power system.

Monitoring module

Detects the status of the power system and storage batteries. Two RS232/RS485 communication interfaces and one DB50 interface are reserved on the monitoring module.

AC/DC power distribution frame

Provides AC power input interface, load interfaces, storage battery interface, and replaceable fuses.

Indicators

Indicators for the rectifier and monitoring modules are present on the front panel of the ETP4830-4815AF. Table 7-8 and Table 7-9 list the indications of indicators for the rectifier and monitoring modules respectively.

Table 7-8 Indicators for the rectifier modules

Indicator

Color

Status

Description

Power indicator

Green

Steady on

The rectifier has an AC power input.

Off

The rectifier has no AC power input.

The rectifier is faulty.

On 2s and off 2s

The rectifier is being queried.

On 250 ms and off 250 ms

The rectifier is loading an application program.

Alarm indicator

Yellow

Off

No alarm is generated.

Steady on

The rectifier generates an alarm for power limiting due to ambient overtemperature.

The rectifier generates an alarm for shutdown due to ambient overtemperature or undertemperature.

The rectifier protects against AC input overvoltage or undervoltage.

The rectifier is hibernating.

On 2s and off 2s

The communication between the rectifier and the SMU is interrupted.

Fault indicator

Red

Off

The rectifier is running properly.

Steady on

The rectifier locks out due to output overvoltage.

The rectifier has no output due to an internal fault.

Table 7-9 Indicators for the monitoring module

Indicator

Indication

Color

Normal State

Abnormal State

Cause of Exception

RUN

Running indicator

Green

Blinking at 1s internals

Off

The monitoring module is running abnormally.

Blinking at 125 ms internals

Abnormal communication

ALM

Alarm indicator

Red

Off

On

The ETP4830-4815AF reports an alarm.

Buttons

Table 7-10 describes the buttons on the panel of the monitoring module.

Table 7-10 Button description

Button

Name

Description

or

Up or Down

Allows you to view menu items and set the value of a menu item.

Back

Returns to the previous menu without saving the settings.

Enter

  • Enters the main menu from the standby screen.
  • Enters a submenu from the main menu.
  • Saves the menu settings.

Note:

  • The standby screen is displayed and the LCD screen becomes dark if you do not press any button for 5 minutes.
  • You need to log in again to enter the control and setting menus if you do not press any button for 8 minutes.

Interfaces

Table 7-11 lists types and usage of the interfaces on the front panel of the ETP4830-4815AF.

Table 7-11 Interfaces on the front panel of the ETP4830-4815AF

Interface Name

Number of Interfaces

Interface Type

Description

Remarks

AC INPUT

1

-

220 V AC power input interface

-

RS232/RS485

2

RJ-45

RS232/RS485 communication interfaces. The monitoring module communicates with the equipment, reports alarms, and implements remote control through these interfaces.

The interface on the left is the active interface and the interface on the right is the standby interface. The active and standby interfaces cannot be used at the same time.

Reserved interfaces

COM

1

DB50

The monitoring module is connected to various sensors through the COM interface.

Reserved interface

LOAD1

1

-

Output interface for load 1

LOAD1 and LOAD2 provide DC power for two PIUs. For how to connect the load interfaces to the PIUs, see the Installation Guide.

The pins marked with + and - are connected to the 48V+ and 48V- poles of the cable connector respectively.

Table 7-12 lists the relationships of the load output interfaces, interface for connecting to the storage batteries, and fuses.

LOAD2

1

-

Output interface for load 2

BATT

1

-

Interface for connecting to the storage batteries

ALM1

1

-

Dry contact output 1

Mains Fault, DC Over Volt, DC Under Volt, Batt Off, Batt Loop Trip, Rect Fault, Load Fuse Trip

Alarm severity: Major

ALM2

1

-

Dry contact output 2

AC Over Volt, AC Under Volt, Amb. Over Temp1, Amb. Under Temp1, Batt Over Temp, Batt Under Temp, Rect Protect, Rect Comm Fail, Batt Over Curr, Dig. Input1 ALM, Dig. Input2 ALM, Batt Discharge

Alarm severity: Minor

ALM3

1

-

Dry contact output 3

-

ALM4

1

-

Dry contact output 4

-

Output branch fuses

There are three replaceable fuses on the front panel of the ETP4830-4815AF. The fuses disable/enable the load and storage batteries, and provide overload and short-circuit protection for the load and storage batteries.

Table 7-12 Relationships of the load output interfaces, interface for connecting to the storage batteries, and fuses

Output Branch Fuse

Load Branch

FU-1 (20 A)

LOAD1 (20 A)

FU-2 (20 A)

LOAD2 (20 A)

FU-BT (20 A)

BATT (20 A)

Technical Specifications

Table 7-13 lists the technical specifications of the ETP4830-4815AF.

Table 7-13 Technical specifications of the ETP4830-4815AF

Category

Item

Specifications

Environmental conditions

Operating temperature

-40ºC to +70ºC

NOTE:
The system can run for 8 hours at 70ºC.

Transportation temperature

-40ºC to +70ºC

Storage temperature

-40ºC to +70ºC

Operating humidity

5%-95%

Altitude

0-4000 m

When the altitude ranges from 2000 m to 4000 m, the operating temperature decreases by 1ºC for each additional 200 m.

AC input

Input mode

Single-phase three-wire (L, N, PE)

Input voltage

85-300 V AC (rated voltage: 220 V AC)

Input frequency

45-66 Hz (rated frequency: 50/60 Hz)

Power factor

≥ 0.99 (100% load)

Maximum efficiency of the rectifier module

94%

Battery input

Rated input voltage

48 V

Capacity

40 Ah

Number of batteries

4

DC output

Output voltage range

-42 V DC - -58 V DC

Default output voltage

-53.5 V DC

Output current

  • FU-1 (20 A)
  • FU-2 (20 A)
  • FU-BT (20 A)

Maximum power output

2000 W (input voltage: 176 V AC to 300 V AC); 940 W (input voltage: 85 V AC to 175 V AC)
NOTE:

Number of rectifiers multiplied by the output power of a single rectifier

Regulated voltage precision

≤ ±0.6%

Peak-to-peak noise voltage

≤ 200 mV (0–20 MHz)

Structure

Dimensions (H x W x D)

43.6 mm x 442 mm x 255 mm

Weight

≤10 kg (with rectifiers)

Protection level

IP20

Installation mode

Adapts to 19-inch cabinets and ETSI cabinets by using different types of mounting ears

Maintenance mode

Maintained from the front

Cooling mode

air cooling, with two fans embedded

Dimensions of a battery

170 mm (H) x 197 mm (W) x 165 mm (D)

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Updated: 2019-01-14

Document ID: EDOC1100058943

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