Controlled Products Systems Group BXC3 - Manual (Page 2)

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Frequency (DIP Switches 1 and 2):
In situations where loop geometry forces loops to be located in close proximity to one another, it
may be necessary to select different frequencies for each loop to avoid loop interference, commonly
known as crosstalk. DIP switches 1 and 2 can be used to configure the detector to operate at one of
four frequencies corresponding to Low, Medium / Low, Medium / High, and High as shown in the
table below.
NOTE: After changing any frequency switch setting(s), the detector must be reset by momentarily
changing one of the other switch positions or pressing the front panel RESET pushbutton.
Switch
Frequency
Low (0) Medium / Low (1) Medium / High (2) High (3) *
1 ON OFF ON OFF *
2 ON ON OFF OFF *
* Factory default setting.
Output Delay (DIP Switch 3):
A two second delay of Outputs A and B can be activated by setting DIP switch 3 to the ON position.
Output delay is the time the detector outputs are delayed after a vehicle first enters the loop
detection zone. If the two second Output Delay feature is activated, the output relays will only be
turned on after two seconds have passed with a vehicle continuously present in the loop detection
zone. If the vehicle leaves the loop detection zone during the two second delay interval, detection is
aborted and the next vehicle to enter the loop detection zone will initiate a new full two second delay
interval. The detector provides an indication that a vehicle is being detected but that the outputs are
being delayed, by flashing the front panel DETECT LED at a four Hz rate with a 50% duty cycle.
The factory default setting is OFF (no Output Delay).
Sensitivity Boost (DIP Switch 4):
DIP switch 4 can be turned ON to increase sensitivity during the detect period without changing the
sensitivity during the no detect period. The boost feature has the effect of temporarily increasing the
sensitivity setting by up to two levels. When a vehicle enters the loop detection zone, the detector
automatically boosts the sensitivity level. As soon as no vehicle is detected, the detector
immediately returns to the original sensitivity level. This feature is particularly useful in preventing
dropouts during the passage of high bed vehicles. The factory default setting is OFF (no Sensitivity
Boost).
Sensitivity (DIP Switches 5 and 6):
DIP switches 5 and 6 select one of the four (4) sensitivity levels available as shown in the table
below. Use the lowest sensitivity setting that will consistently detect the smallest vehicle that must
be detected. Do not use a sensitivity level higher than necessary.
Switch
Sensitivity Level (- ΔL/L)
0.32% (0) 0.16% (1) * 0.08% (2) 0.02% (3)
5 OFF ON * OFF ON
6 OFF OFF * ON ON
* Factory default setting.
Relay B Output Mode (DIP Switches 7 and 8):
Relay B has four (4) modes of operation: Pulse-on-Entry, Pulse-on-Exit, Presence, and Fault. DIP
switches 7 and 8 are used to configure the output mode of Relay B.
When set to operate in Pulse mode (DIP switch 8 set to OFF), Relay B can be set to provide a 250
millisecond pulse when a vehicle enters or exits the loop detection zone. DIP switch 7 is used to
select Pulse-on-Entry or Pulse-on-Exit. When DIP switch 7 is OFF, Pulse-on-Entry is selected.
When DIP switch 7 is ON, Pulse-on-Exit is selected.
When DIP switch 8 is set to ON (Presence / Fault output), DIP switch 7 selects the Relay B Presence
or Fault mode of operation. When DIP switch 7 is OFF, Output B presence hold time is the same
as Output A. When DIP switch 7 is in the ON position, Relay B will output a Fault signal only
when a loop fault condition exists. If the loop fault self-corrects, Relay B will resume operation in
the No Fault output state.
The table below shows the various combinations of switch settings and Relay B modes of operation.
Switch Pulse-on-Entry * Pulse-on-Exit Presence Fault
7 OFF * ON OFF ON
8 OFF * OFF ON ON
* Factory default setting.
III. Reset:
Pushing the front panel RESET pushbutton or changing any DIP switch position (except 1 or 2) will
reset the detector. After changing the frequency selection switches, the detector must be reset.
IV. Call Memory:
When power is removed for two seconds or less, the detector automatically remembers if a vehicle was
present and a Call was in effect. When power is restored, the detector will continue to output a Call until
the vehicle leaves the loop detection zone (loss of power or power dips of two seconds or less will not
bring a gate arm down onto cars as they wait at the gate).
V. Failed Loop Diagnostics:
The LOOP FAIL LED indicates whether or not the loop is currently within tolerance. If the loop is out
of tolerance, the LOOP FAIL LED indicates whether the loop is shorted (one Hz flash rate) or open
(steady ON). If and when the loop returns to within tolerance, the LOOP FAIL LED will flash at a three
flashes per second rate to indicate that an intermittent loop fault has occurred and has been corrected.
This flash rate will continue until another loop fault occurs, the detector is reset, or power to the detector
is interrupted.
VI. Pin Connections (Reno A & E Wiring Harness Model 802-4):
Pin Wire Color Conventional Function Euro Function
1 Black AC Line / DC + AC Line / DC +
2 White AC Neutral / DC Common AC Neutral / DC Common
3 Orange Relay B, Normally Open (N.O.) Relay B, Normally Open (N.O.)
4 Green No Connection Relay B, Common
5 Yellow Relay A, Common Relay A, Normally Open (N.O.)
6 Blue Relay A, Normally Open (N.O.) Relay A, Common
7 Gray Loop Loop
8 Brown Loop Loop
9 Red Relay B, Common No Connection
10
Violet or
Black / White
Relay A, Normally Closed (N.C.) Relay A, Normally Closed (N.C.)
11
White / Green or
Red / White
Relay B, Normally Closed (N.C.) Relay B, Normally Closed (N.C.)
Note: All pin connections listed above are with power applied, loop(s) connected, and no vehicle detected.
VII. Warnings:
Separately, for each loop, a twisted pair should be created consisting of only two (2) loop wires running
the entire distance from the loop to the detector (including runs through all wiring harnesses) at a
minimum of six (6) complete twists per foot. For trouble free operation, it is highly recommended that
all connections (including crimped connectors) be soldered.