2-2
BE1-50/51B-Human Machine Interface (Controls and Indicators)
Table 2-1. BE1-50/51B Controls and Indicators - Continued
Locator
Control or Indicator
Function
SW8-3
In 100 series relays, switch SW8-3 closed (ON) provides an
additional instantaneous delay of 0.2 seconds. Closing both
switches SW8-2 and SW8-3 provides an additional
instantaneous delay of 0.3 seconds.
In 200 series relays, SW8-3 open (OFF) selects ABB type
curves (refer to Table 1-3. SW8-3 closed (ON) selects GE
IAC type curves (refer to Table 1-4).
SW8-4
Provides selection of either instantaneous or integrating
reset characteristic. Closing SW8-4 provides integrating
reset. Opening SW8-4 provides instantaneous reset.
K
Auxiliary Output Jumper
Terminations
Configures the auxiliary output contacts to close with either
the instantaneous (50) trip and/or the timed (51) trip.
Jumper E2 to E1A to close the auxiliary contact with the
timed (51) trip. This jumper is yellow and factory installed to
close the auxiliary output contacts with the timed trip.
Jumper E3 to E1B to close the auxiliary contact with the
instantaneous (50) trip. This jumper is blue and factory
installed to close the auxiliary output contacts with the
instantaneous trip.
NOTE: Users with unit revision Q and previous, in units
9 2520 00 100 through 109, refer to Section 8 for the
location of the auxiliary output jumper terminations.
Figure 2-1. Location of Controls and Indicators
