Siemens EF 73E Series Manual de usuario descargar pdf (Pagina 7)

The relay is housed in a 4U high size E4 case with a

removable clear plastic fascia cover. The plastic fascia

cover can be ordered with or without two push buttons.

to allow the user to view the settings and instruments

without removing the cover.

Two plastic handles are provided to allow the relay to be

withdrawn from its case, contacts in the case ensure that

the CT circuits and normally closed contacts remain short

circuited when the relay is withdrawn.

The rear terminal blocks comprise M4 female terminals

for ring crimp wire connections, to provide a secure and

reliable termination.

Fig 8. Rear view of relay

Construction User Interface

Fig 9. User Interface

The operator interface is designed to provide a user

friendly method of controlling, viewing menus, entering

settings and retrieving data from the relay. Five buttons

are provided for navigation around the menu structure.

LCD

A 4 line by 20 character liquid crystal display with power

save operation indicates the relay identifier, settings,

instrumentation, fault data and control commands.

Up to 6 user programmable general alarms can be

configured to display your own indications on the LCD.

LEDs

A green steadily illuminated LED indicates the ‘Protection

Healthy’ condition.

9 user programmable LEDs are available eliminating the

need for expensive panel mounted pilot lights and

associated wiring. Each LED is tri-color (red, green,

yellow) allowing for clear indication of the associated

function’s state and has a label insert for identification.

Relay Information

The device is identified by the rating label on the fascia.

The user can also give the device its own identity by

editing the ‘Relay Identifier’ displayed on the LCD or space

is provided to place a slip in label giving the relays

function.

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Siemens EF 73E Series Manual de usuario Pagina 7