Fixed Function Leds; Function Keys; Programable Leds - GE P24DM Technical Manual

P24xM
5.7

FIXED FUNCTION LEDS

Four fixed-function LEDs on the left-hand side of the front panel indicate the following conditions.
Trip (Red) switches ON when the IED issues a trip signal. It is reset when the associated fault record is
●
cleared from the front display. Also the trip LED can be configured as self-resetting.
Alarm (Yellow) flashes when the IED registers an alarm. This may be triggered by a fault, event or
●
maintenance record. The LED flashes until the alarms have been accepted (read), then changes to
constantly ON. When the alarms are cleared, the LED switches OFF.
Out of service (Yellow) is ON when the IED's functions are unavailable.
●
● Healthy (Green) is ON when the IED is in correct working order, and should be ON at all times. It goes OFF if
the unit's self-tests show there is an error in the hardware or software. The state of the healthy LED is
reflected by the watchdog contacts at the back of the unit.
5.8

FUNCTION KEYS

The programmable function keys are available for custom use for some models.
Factory default settings associate specific functions to these keys, but by using programmable scheme logic, you
can change the default functions of these keys to fit specific needs. Adjacent to these function keys are
programmable LEDs, which are usually set to be associated with their respective function keys.
5.9

PROGRAMABLE LEDS

The device has a number of programmable LEDs. All of the programmable LEDs on the unit are tri-colour and can
be set to RED, YELLOW or GREEN.
In the 20TE case, four programmable LEDs are available. In 30TE and 40TE, eight are available.
P24xM-TM-EN-2.1
Chapter 3 - Hardware Design
41