GE C70 Instruction Manual page 216

PRODUCT SETUP
5
Application example 1
Assume one needs to check if any of the LEDs is "burned" through user-programmable pushbutton 1. Apply the following
settings.
Configure user-programmable pushbutton 1 by making the following entries in the
PROGRAMMABLE PUSHBUTTONS  USER PUSHBUTTON 1
PUSHBUTTON 1 FUNCTION
PUSHBTN 1 DROP-OUT TIME
Configure the LED test to recognize user-programmable pushbutton 1 by making the following entries in the
PRODUCT SETUP  USER-PROGRAMMABLE LEDS  LED TEST
LED TEST FUNCTION
LED TEST CONTROL
The test is initiated when the user-programmable pushbutton 1 is pressed. Keep the pushbutton pressed for as long as the
LEDs are being visually inspected. When finished, release the pushbutton. The relay then automatically starts stage 2. At
this point, test can be cancelled by pressing the pushbutton.
Application example 2
Assume one needs to check if any LEDs are "burned" as well as exercise one LED at a time to check for other failures. This
is to be performed via user-programmable pushbutton 1.
After applying the settings in application example 1, hold down the pushbutton as long as necessary to test all LEDs. When
finished, release the pushbutton so that the relay then automatically starts stage 2. When stage 2 is completed, stage 3
starts automatically. The test can be cancelled at any time by pressing the pushbutton.
5-92
Figure 5-32: LED test sequence
READY TO TEST
rising edge of the
control input
Start the software image of
the LEDs
LED TEST IN PROGRESS
control input is on
STAGE 1
(all LEDs on)
dropping edge of the
control input
Wait 1 second
STAGE 2
(one LED on at a time)
Wait 1 second
STAGE 3
(one LED off at a time)
: "Self-reset"
: "0.10 s"
: "Enabled"
: " "
PUSHBUTTON 1 ON
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
Reset the
LED TEST IN PROGRESS
operand
Restore the LED states
from the software image
Set the
operand
time-out
(1 minute)
rising edge of the
control input
rising edge of the
control input
rising edge of the
control input
rising edge
of the control
input
menu. (The option does not display when not purchased.)
menu:
CHAPTER 5: SETTINGS
842011A1.CDR
SETTINGS  PRODUCT SETUP  USER-
SETTINGS 