Red Target Led; Programmable Target Leds; Target Messages - ABB REF 610 Operator's Manual

REF 610
3.3.1.3.
3.3.1.4.
3.3.2.
30
Feeder Protection Relay
Operator's Manual - ANSI Version
The yellow target LED will continue blinking for as long as a protection element
remains blocked. The blocking target will disappear with the digital input signal
or when the protection element is no longer picked up.
If a protection element is blocked when other protection elements are picked up,
the target will continue blinking. This because a blocking target has a higher
priority than a pickup target.

Red target LED

Fig. 3.3.1.3.-1 Red target LED
• Target off:
No protection element has tripped.
• Lit target:
A protection element has tripped. The trip target is latching, i.e. it will remain lit
until manually cleared.

Programmable target LEDs

In addition to the three fixed LEDs, the relay includes eight LEDs which you can
program to target the status of different type of relay signals. The programmable
LEDs can target the following information:
• Trip signals from protection elements
• Alarm signals from protection elements
• Circuit-breaker position
• Status of the auto-reclose function
• Trip lockout
• Light detected by the arc protection
• Status of the digital input signals
Rout the signals to the LEDs via switchgroups SGL1...SGL8; to LED1 with the
switches of switchgroup SGL1, to LED2 with those of SGL2, and so forth. Each
SGL consists of 21 alternative signals. For detailed information on the signals, refer
to the Technical Reference Manual.
The LEDs are non-latching by default but you can also set them to operate as
latching via switchgroup SGF5.
For instructions on setting the switchgroups, refer to section Switchgroups.

Target messages

The messages give an overview of protection operations and internal relay faults.
1MRS 755539