Diagnostic LEDs
The
SECTOR
controller has a series of diagnostic LEDs which indicate the state of the inputs.
Normally-open inputs are indicated by a red LED, and normally-closed inputs by a green LED.
An illuminated red LED indicates that the signal is present (e.g. barrier raise pressed), while a
non-illuminated green LED indicates that the signal is absent (i.e. IRB broken)
ILD - green: On
when the Inductive Loop Detector
output is not activated
Aux input - green:
when the Aux input is not
activated
On
Lck/Stp - green:
when the Lck/Stp input is not
activated
On
MI - red:
when the memory input signal is present
On
NMI - red:
when the non-memory input signal is
present
On
Raise - red:
when a Barrier Raise signal is present
On
Lower - red:
when a Barrier Lower signal is present
On
Status- red:
This LED indicates the
status of the
barrier
as per the table below
SECTOR barrier status LED
Off
Barrier is lowered
On
Barrier is partially or fully raised
Continuous slow flash
Barrier is raising
Continuous fast flash
Barrier is lowering
One flash every two seconds
Pillar Light override is activated
Two flashes every two seconds
No mains present
Three flashes every two seconds
Battery voltage is low
Four flashes every two seconds
Multiple collisions have occurred
FLUX OB (SECTOR termination board) diagnostic LEDs
Power indicator LED
!
Loop fault indicator LED
!
This red LED is illuminated when there is a loop fault. If the loop is open circuit, the
Fault LED will flash continuously. If the loop is short circuit, it will remain on
Detection level indicator LEDs
!
These five red LEDs provide a visual indication of the Detection Level. Once all five
LEDs are on, the detection threshold is almost reached. This is a very useful feature to
determine if the loop is going to perform reliably. With no vehicle in the vicinity, all the
LEDs should be off
Detect indicator LED
!
This green LED indicator is illuminated when there is a vehicle detected. This LED can
also be used to determine the loop frequency. Reset or power up, count the number of
times the Detect LED flashes. Multiply the number by 10KHz. For example: if the LED
flashes eight times, then the loop frequency is approximately 80KHz
This green LED is on when power is present, and the controller is functioning
23. Diagnostics
Page 51
FIGURE 39
