Basler Electric BE1-50/51B-122 - Manual (Page 27)

9252000981 Rev H BE1-50/51B-219/-226 Controls and Indicators 2-3
Table 2-1. BE1-50/51B-219 and BE1-50/51B-226 Controls and Indicators (Refer to Figures 2-1 and 2-2)
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 0.08
inch diameter phone tip plug.
B INST PICKUP
Selectors
Two switches (TENS and UNITS) to select pickup current in
amperes. Changing switch selectors while the relay is in service
may cause tripping.
C Targets Red target indicators 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 (UNITS and TENTHS) to select pickup current in
amperes. 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 (UNITS and TENTHS) 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 0.08 inch
diameter phone tip plug.
H ACTIVE/PICKUP LED Red LED indicates sensed current has exceeded the TIME
PICKUP setting. LED turns from red to green when sensed current
falls below 95% of pickup setting. When the LED is green, the
relay is active but has not picked up.
I Target Reset Button Linkage extends through back of front cover to reset both gravity
latched target indicators.
SW3-1 SW3-1 selects the system operating frequency. SW3-1 open
(OFF) selects 60 Hz operation. SW3-1 closed (ON) selects 50 Hz
operation.
SW3-2 SW3-2 provides additional time delay for the instantaneous
element. Closing switch SW3-2 (ON) provides an additional
instantaneous delay of 0.1 second.
SW3-3 SW3-3 provides selection of GE IAC type curves or ABB type
curves. Closing switch SW3-3 (ON) selects GE IAC type curves
(refer to Table 1-3). Opening switch SW3-3 (OFF) selects ABB
type curves (refer to Table 1-2).
SW3

SW3-4 SW3-4 provides selection of either instantaneous or integrating
reset characteristics. Closing SW3-4 (ON) selects integrating reset
characteristics. Opening SW3-4 (OFF) selects instantaneous reset
characteristics.
 NOTE: In BE1-50/51B-219 Revision F and previous relays and BE1-50/51B-226 Revision I and
previous relays, switch SW3 is designated as SW8.