Page 13
8. Loop detectors and associated functionality
FLUX OB onboard vehicle loop detector
Description
Certain
SECTOR
models provide an onboard single-channel inductive loop detector
known as the FLUX OB, eliminating the need for a separate detector. This highly sensitive
loop detector can be used for the connection of closing loops and does not require
additional relays and bases to be fitted, saving time and money.
A number of diagnostic LEDs are present on the termination board to allow for quick and
reliable loop installation, and a series of selectable dipswitches enables the individual
user to change settings as best suits the installation. In addition, the inclusion of
adjustable frequency settings provides excellent immunity to outside interference, and
adaptive self-tuning means unparalleled and uncompromising reliability.
1
2
3
4
5
6
7
8
9
10 11
SAFETY BEAM
COM
MI
COM
NMI
Lower
Raise
Status
TVI
TVI
LCK
AUX Out
FRX
LOOP
1
2
3
4
5
6
7
8
O
N
D
IP
17 18
PWR
DIA
DETECTED
LEVEL 5
LEVEL 4
LEVEL 3
LEVEL 2
LEVEL 1
FAULT
RUN
FREQ HI/LO
ASB
PERM PRES
0 0 0 0 1 1 1 1
UNI-DIR FRX
0 0 0 0 1 1 1 1
0 0 0 0 1 1 1 1
-
12V Out
+
12 13 14 15 16
FRX
LOOP
Free-exit loop detector 11 pin base
Reset button
Dipswitches
Diagnostic
LEDs
FLUX OB onboard
inductive loop detector
FLUX OB features
Reset button
!
results in the detector retuning the sensing loop and becoming ready for vehicle
detection. In addition, a 0.5S output pulse will be generated
Run switch
!
If the switch is ON, the detector is in Run Mode, and functions normally. If OFF, the
detector halts, and the output relay defaults to the detected state. This is useful when
working on the
SECTOR
, as it will prevent the boom from lowering
Frequency selection switch
!
The frequency of the loop is determined by the inductance of the loop and the
frequency switch setting. If the frequency switch is ON, the frequency is reduced by
approximately 25%. It may be necessary to change the frequency to prevent cross-
talk between adjacent loops
Pressing the reset button enables the detector to be manually reset at any time. This
FIGURE 3. FLUX OB ONBOARD VEHICLE LOOP DETECTOR
