Of trip, Of trip -5 – Basler Electric BE1-87T User Manual
Page 39
9171300990 Rev V
BE1-87T Functional Description
3-5
NOTE
Prior to September 2007, the BE1-87T target indicators consisted of
magnetically latched, disc indicators. These mechanically latched target
indicators have been replaced by the electronically latched LED targets in use
today.
% of Trip
When the % of trip pushbutton Q is pushed, eight LEDs, shown in Figure 2-5, are used to indicate the
percentage of operating current to: Minimum pickup (LED M also lights); or Slope characteristic pickup
(LED S also lights). The eight LEDs represent the following percentages:
1 LED:
3% (Yellow LED)
2 LEDs:
7% (Yellow LED)
3 LEDs:
11% (Yellow LED)
4 LEDs:
20% (Red LED)
5 LEDs:
40% (Red LED)
6 LEDs:
60% (Red LED)
7 LEDs:
80% (Red LED)
8 LEDs:
100% (Red LED)
A bar chart above the LEDs shows the relative percentage of trip.