RIB ACG9064 Guia De Inicio Rapido página 10

G
B
A RESET
B DIP-SWITCH
C LED
1
+ 11÷26 V ac/dc
2 - 11÷26 V ac/dc
3
4
5
6
7 N.O. CHANNEL 2 (N.C.)
8 COM. CHANNEL 2
9
10 N.O. CHANNEL 1 (N.C.)
11 COM. CHANNEL 1
SYMPTOM
The POWER LED is not on.
The DETECT LED flashes
erratically.
The DETECT LED stays on.
The LOOP FAULT LED is flashing.
The LOOP FAULT LED is
permanently illuminated.
LOOP 1
LOOP 2
EARTH
POSSIBLE CAUSE
No power supply voltage on the input.
There may be a poor connection in the loop or loop feeder.
The detector may be experiencing crosstalk with the loop of
an adjacent detector.
Faulty loop or loop feeder wiring, not correctly fixed.
Movement of the loop in the ground.
The loop inductance is to small or the loop is short circuit.
The loop inductance is to large or the loop is open circuit.
C
B
A
Check that the power supply is correctly wired to the detector (terminals 1 and 2).
Check all wiring.
Tighten screw terminals.
Check for broken wires.
Try changing frequencies using the frequency switch. Put the detector with the larger loop
onto low frequency and the detector with the smaller loop onto high frequency.
Check the wiring.
Tighten screw terminals.
Check for pinched or bent wires.
Check for cracks in the road surface near the loop.
Check that there is no short circuit on the loop feeder wiring or the loop.
If there is no short circuit then the inductance is to small and more turns of wire should be
added to the loop.
Check that there is electrical continuity on the loop.This can be done using a multimeter on
the ohms range (< 5 Ω).
If the loop inductance is to large then try reducing the number of turns.
10
2 1 6 11 10
4 3 5 7 8 9
SOLUTION
4