9190600990 Rev F
BE1-50BF Controls and Indicators
2-1
SECTION 2
•
CONTROLS AND INDICATORS
INTRODUCTION
BE1-50BF controls and indicators are located on the front panel and the left interior. The controls and
indicators are shown in Figures 2-1 and 2-2. Table 2-1 references the callouts in Figure 2-1. Table 2-2
references Figure 2-2.
Table 2-1. BE1-50BF Controls and Indicators (Refer to Figure 2-1)
Locator
Control or Indicator
Function
A
thru
D
TIMING MONITOR
Test
Points
Jacks provide nominal 10 V oscilloscope test points for
monitoring the control timer, timer T1, and timer T2. The
jacks accommodate a standard 0.080 diameter phone tip
plug.
E
thru
G
CONT, T1, T2, TIMING
ADJUST
Multiturn potentiometers allow screwdriver adjustment of
timers (control, T1, and (optional) T2).
H PHASE
CURRENT
ADJUST
Pickup Control
Multiturn potentiometer establishes the pickup point for
phase current. Continuously adjustable over the range
defined by the style number.
I NEUTral
CURRENT
ADJUST
Pickup Control
Multiturn potentiometer establishes the pickup point for
neutral current. Continuously adjustable over the range
defined by the style number.
J
Current Pickup Indicator
LED lights when current exceeds the pickup point on any
monitored phase (or neutral). The lamp extinguishes as
soon as all monitored inputs drop below pickup.
K
POWER
LED
LED illuminates to indicate that power supply is operating.
L
Target Reset Switch
This switch resets the target indicators.
M
BF1, BF2, INST
Target
Indicators (optional)
Electronically latching red indicators illuminate when the
associated output relay has been energized.
N PUSH-TO-ENERGIZE
OUTPUT
(optional)
Momentary pushbuttons accessible by inserting a 1/8 inch
diameter non-conducting rod through the front panel.
Pushbuttons are used to energize the output relays in
order to test system wiring.
CAUTION
If S1-3 is closed and pickup current present, the push-to-energize switch for the
instantaneous output will also close the breaker failure output.
Содержание BE1-50BF
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