3 Using the IED (Getting Started)
D02706R02.30
L-PRO 4000 User Manual
3-3
Push Buttons
Target LED Number
Description (Default values)
1
Any device 21P trip operation (phase distance - 21P1, 21P2, 21P3,
21P4)
2
Any device 21N trip operation (ground distance - 21N1, 21N2,
21N3, 21N4)
3
Any device 50 or 51 trip operation (phase overcurrent - 50 or 51,
neutral overcurrent - 50N or 51N, negative sequence overcurrent
46-50 or 46-51)
4
Any device 50BF trip operation (breaker failure - 50BF Main-1,
50BF Main-2, 50BF Aux-1, 50BF Aux-2)
5
Any device 81 trip operation (over/under-frequency - 81-1, 81-2, 81-
3, 81-4)
6
Switch On To Fault trip operation
7
Communication Scheme trip operation
8
Device 68 trip operation Power Swing trip
9
ProLogic 1 - 8
10
ProLogic 9 - 16
11
ProLogic 17 - 24
Target LED assignments are the default values but are configurable
by the user through the Offliner settings (output matrix configuration).
Table 3.2: Description of LED Lights
Table 3.3: Identification of Push Buttons
Up, Down, Right, Left, Enter, Escape
Used to navigate the front panel screens.
Summary of Contents for L-PRO 4000
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