Basler BE1-50/51B-217, Instruction Manual, Page: 24 / 49

2-1
SECTION 2
CONTROLS AND INDICATORS
GENERAL
Table 2-1 lists and briefly describes the BE1-50/51B-217 controls and indicators. Reference the callouts
to Figures 2-1 and 2-2.
Table 2-1. BE1-50/51B Controls and Indicators (Refer to Figures 2-1, 2-2, and 2-3)
Locator Control or Indicator Function
A INST MANUAL TRIP Test
Points
When shorted, the test points (jacks) provide a secure means
to manually trip the controlled breaker. Jacks accept a
standard 0.080 inch diameter phone tip plug.
B INST PICKUP Selectors Two switches to select pickup current in amperes (TENS and
UNITS). Changing switch selectors while the relay is in
service may cause tripping.
C Targets Black target indicators trip to red and magnetically latch when
the trip circuit current is greater than 0.2 amperes. One
target each for TIME and INST.
D TIME PICKUP Selectors
Two switches to select pickup current in amperes (TENS and
UNITS). Changing switch selectors while the relay is in
service may cause tripping.
E CURVE Selector Ten position selector switch to select one of nine inverse
functions or one fixed time function.
F TIME DIAL Selectors Two selector switches (TENS and UNITS) to select the
desired characteristic curve. A setting of 0.0 results in
instantaneous operation without any intentional delay. A
setting of 9.9 corresponds to the typical time provided by an
electromechanical relay at its maximum dial setting.
G TIME MANUAL TRIP Test
Points
When shorted, the test points provide a secure means to
manually trip the controlled breaker. Jacks accept a standard
0.080 inch diameter phone tip plug.
H PICKUP LED Red LED indicates sensed current has exceeded the TIME
PICKUP setting. LED turns OFF when sensed current falls
below 95 % of pickup setting.
I Target Reset Lever Linkage extends through back of front cover to reset both
magnetically latched target indicators.
J SW8 -1 SW8-1 selects the system operating frequency. SW8-1 open
(OFF) selects 60 hertz operation. SW8-1 closed (ON)
selects 50 hertz operation.
SW8-2 SW8-2 selects additional delay for the instantaneous
element. Switch SW8-2 closed (ON) provides an additional
instantaneous delay of 0.1 seconds.