3
You can adjust the yellow hue on these types of LED searchlight signals
using the switch labeled YEL HUE on the circuit board. If the switch is in
the ON position, as shown in Figure 3, then the yellow hue will be more
greenish and less red; if the switch is in the OFF position then the yellow
hue will be more reddish and less green. NOTE: this switch has no effect on
searchlight signals constructed with individual green, yellow and red LEDs.
Figure 3
adjusting yellow hue
Signals with 3 LEDs (Tomar Industries, Oregon Rail Supply,
all
BLMA, Atlas searchlights, etc)
To select signals using 3 individual LEDs
(this INCLUDES searchlight signals
from BLMA/Atlas and the newer searchlight signals from Tomar)
you must have
the appropriate configuration switch (SIG EB or SIG WB) in the OFF position as
shown in Figure 4. The
Block Animator/2
directly controls 3-light LED signals wired
in a common-anode (the anode is the positive side of the LED) arrangement.
Virtually all brands of 3-light signals are wired this way. Two known exceptions are
signals from Integrated Signal Systems which typically wire their signals in a
common-cathode arrangement and the Atlas 3-light circular head (not searchlight)
signals. We offer the
Block Animator/2
version BA2-CC or BA2-CC-IR for that type
of signal wiring. You MUST use resistors with LED-based signals! Since the
Block
Animator/2
pr5V power to the LED we recommend a resistor value of 150
Figure 4 –selecting 3-LED signals
(EB signal selection shown)
ohms. We have included six resistors with this product; you can use higher value resistors if you wish! We recommend using
individual resistors in each of the LED cathode paths as illustrated in Figure 4.
NOTE: The CTR terminal is not used with
this signal type!
3-light
signal
G
150
150
150
Y
R
common
anode (+)
Figure 5 – 3-light signal (EB signal wiring shown)
Sensor modes
The
Block Animator/2
supports four different sensor (detector) modes: photocell, between-the-rails infrared, across-the-rails
infrared, and external detector. When you purchased this product it either came with a photocell, infrared components or
neither (board only, for use with external detectors). The sensor mode is selected using the switches labeled SEN_TYPE and
SEN_POL as depicted in the Table 1 below.
Photocell
SEN TYPE – OFF
SEN POL - OFF
Between-the-rails Infrared
SEN TYPE – ON
SEN POL - ON
Across-the-rails Infrared
SEN TYPE – ON
SEN POL - OFF
External Detector
SEN TYPE – OFF
SEN POL - ON
Table 1 – Sensor mode selection
