GE Multilin 565 Instruction Manual page 26

DISPLAY AND KEYBOARD
Number Name
11
12
13
14
15
16
17
18
19
3-6
Description
GND O/C CURVE
Use NEXT CHOICE
The display will then return to displaying the Extremely Inverse curve. The other curves can now be
viewed one at a time by pressing the NEXT CHOICE key. For example, the Custom Curve will be
seen the next time the key is pressed as shown in the following display.
GND O/C CURVE
SHAPE: CUSTOM
The remaining curves can be viewed in the same way. The display will cycle through all the curves
as the key is pressed. Note that the curve in use by the 565/575 Relay will not be changed by
displaying the various choices. To change the curve in use, it must be displayed and stored. See the
STORE key description.
The Numeric keypad has the numbers 0 to 9 and the decimal point. These keys are used to enter
the numerical values of the various setpoints with or without a decimal. The decimal point key also
functions as the NEXT CHOICE key. In this case it is used to display one choice at a time from a list
of items. See NEXT CHOICE key description.
The Trip LED indicates the state of the trip output relay which is used to trip the Feeder Breaker
monitored by the 565/575 Relay. When the LED is on, the Trip relay is active with the cause of the
trip condition shown on the LCD display. A flashing LED indicates that the relay was active, and has
returned to its inactive state. This can occur when the fault condition disappears and the relay is
programmed as pulsed. The LED will be extinguished by pressing the RESET key only if the fault
condition causing the relay to be activated has been removed.
The Aux 1 LED indicates the state of the output relay, Aux 1, which can be used for a function
chosen by the user. When the LED is on, the relay is active. If pulsed or unlatched operation is
chosen for this relay, the LED will flash if a trip condition is removed or will be extinguished when the
condition causing an alarm is removed. If latched operation is chosen the RESET key must be
pressed to return the relay to its no fault state and extinguish the LED indicator.
The Aux 2 LED indicates the state of the output relay, Aux 2, which can be used for a function
chosen by the user. When the LED is on, the relay is active. If pulsed or unlatched operation is
chosen for this relay, the LED will flash if a trip condition is removed or will be extinguished when the
condition causing an alarm is removed. If latched operation is chosen the RESET key must be
pressed to return the relay to its no fault state and extinguish the LED indicator.
The Aux.3 LED indicates the state of the output relay, Aux.3. When the LED is on, as during a trip
coil supervision alarm, the Aux 3 relay is inactive (cold coil).
If the Service LED illuminates steadily, the supply voltage may be too low. This LED may come on
momentarily when the 565/575 Relay is powered up. This is normal and does not indicate a fault
condition.
The Breaker Closed LED indicates the status of the Feeder Breaker being monitored by the 565/
575 Relay. The LED is on if the Feeder Breaker is closed.
The Breaker Open LED indicates the status of the Feeder Breaker being monitored by the 565/575
Relay. The LED is on if the Feeder Breaker is open.
RS232 program port. This port allows for programming from a personal computer. When a cable is
connected to this port and the DTR line is pulled high, the rear RS485 communications port is
disabled.