Basler BE1-50B, Инструкция по эксплуатации

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BE1-50/51B-Human Machine Interface (Controls and Indicators) 2-1
SECTION 2 • HUMAN MACHINE INTERFACE
(Controls and Indicators)
DESCRIPTION
Table 2-1 lists and briefly describes the operator controls and indicators of the BE1-50/51B Overcurrent
Relay. Reference the call-out letters to Figures 2-1 and 2-2.
Table 2-1. BE1-50/51B 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 0.080 inch diameter phone tip plug.
B INST PICKUP Selectors Two switches to select pickup current in amperes (TENS
and UNITS on five ampere models, COURSE and FINE on
one ampere models). 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 on five ampere models, COURSE and FINE on
one ampere models). 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
In 100 and 200 series relays, SW8-2 selects additional
delay for the instantaneous element. Switch SW8-2 closed
(ON) provides an additional instantaneous delay of 0.1
seconds.