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1. The backlight is turned on after the relay has performed the internal power-up

tests and entered into the protection mode.

2. The display is tested by inverting it for approximately three seconds, see

Fig. 4.1.3.1.-1.

3. The display is returned to the idle mode and the backlight is turned off if no

operation target message is displayed. However, if the non-volatile function is

active, a message shown on the display before the auxiliary voltage was

disconnected reappears on the display.

A040216

Fig. 4.1.3.1.-1 Display test at power up, display inverted

4.1.3.2. Display modes

When the display is in the idle mode, the name of the feeder is displayed, which by

default is - ABB -. To change the name of the feeder, use SPA parameter M20.

- ABB -

A040217

Fig. 4.1.3.2.-1 Display in the idle mode

When the display is in the view mode, you can only view the settings.

SETTINGS

*GRP1 : 3.50

A040218

Fig. 4.1.3.2.-2 Display in the view mode

When the display is in the setting mode, you can also edit the settings.

SETTINGS

*GRP1 : 3.5 1

A040219

Fig. 4.1.3.2.-3 Display in the setting mode

4.1.3.3. Display backlight

Normally the backlight of the display is off.

Feeder Protection Relay

Operator's Manual - ANSI Version

REF 610REF 610

1MRS755539

ABB REF 610 User Manual

Other manuals for ABB REF 610