Basler Electric BE1-11d DC Power Protection System

In Edit mode, the scrolling pushbuttons provide data entry selections.

Edit mode is indicated by an LED on the Edit pushbutton.

Select Control Switch and Operate Control Switch pushbuttons provide a

means to control the logic switches.

The LCD has automatic priority logic to govern which metering values are

displayed on the screen so that when an operator approaches, the metering

data of most interest is automatically displayed without having to navigate

the menu structure. Scrollable metering parameters are selected on the

General Settings, Front Panel HMI settings screen in BESTCOMSPlus.

Device Information

The version of the embedded software (firmware), serial number, and style

number are available from the front panel or the communication ports.

Three free-form fields (Device ID, Station ID, and User ID) can be used

to enter information to identify the BE1-11d. These fields are used by

many of the reporting functions to identify the BE1-11d reporting the

information. Examples of BE1-11d identification field uses include station

name, circuit number, relay system, and purchase order.

Device Security

Security settings affect read and write access. Passwords provide access

security for six distinct functional access areas: Read, Control, Operator,

Settings, Design, and Administrator. Each username/password is assigned

an access area with access to that area and each area below it. An

administrator password provides access to all six of the functional areas.

A second dimension of security is provided by the ability to restrict access

for any of the access areas to only specific communication ports.

For example, you could set up security to deny access to control commands

through the Ethernet port.

Setting Groups

Four setting groups allow adaptive relaying to be implemented to optimize

BE1-11d settings for various operating conditions. Automatic and external

logic can be employed to select the active setting group.

Clock

The clock is used by the logging functions to timestamp events. BE1-11d

timekeeping can be self managed by the internal clock or coordinated with

an external source through a network or IRIG device.

A backup capacitor and additional battery backup are provided for the clock.

During a loss of operating power, the backup capacitor maintains timekeeping

for up to 24 hours depending on conditions. As the capacitor nears depletion,

the backup battery takes over and maintains timekeeping. The backup battery

has a life expectancy of greater than five years depending on conditions.

IRIG

A standard unmodulated IRIG-B input receives time synchronization signals

from a master clock. Automatic daylight saving time compensation can be

enabled and set for floating or fixed dates.

NTP (Network Time Protocol)

NTP synchronizes the real-time clock to network time servers through the

Ethernet port. BESTCOMSPlus is used to establish the priority of time

reference sources available to the BE1-11d, IRIG-B, NTP, DNP, and RTC

(real-time clock). The NTP address is set using BESTCOMSPlus.

Communications

Three independent communication ports provide access to all BE1-11d

functions. A USB (universal serial bus) port is located on the front panel,

a two-wire RS-485 port is located on the rear panel, and an optional

Ethernet port is located on the rear panel. The RS-485 and Ethernet ports

are electrically isolated.

Modbus® and DNP3 protocols are optionally available for the RS-485 or

Ethernet communication port.

The IEC 61850 protocol is optionally available for the Ethernet port when

RS-485 option is N (None). Separate instruction manuals cover each

available protocol. Consult the product bulletin or Basler Electric for

availability of these options and instruction manuals. Modbus sessions

can be operated simultaneously over the Ethernet and RS-485 ports.

System Parameters

All sensing is performed using an IT-D isolation module. Each IT-D isolation

module includes two channels that are capable of sensing either dc current

or dc voltage. The dc system current is sensed