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TECHNICAL DATA
•
POWER REQUIREMENT:
LD200
LD201
LD202
•
PRESENCE/PULSE RELAY :
0.5A/220VAC.
•
Approximately 120ms after vehicle enters loop.
RESPONSE TIME:
•
LED indicators show: Power ,Detect state and Loop Fault.
INDICATOR:
•
15 - 1500 uH.
DETECTOR TUNING RANGE:
•
Loop isolation transformer with lightning protection.
PROTECTION:
•
11 Pin Connector on rear of unit.
CONNECTOR:
•
80mm (height) X 40mm (width) X 79mm (Depth excl. connector).
DIMENSIONS:
SWITCH SETTINGS:
SWITCH SETTINGS
No.
FUNCTION
10
EXTEND TIME
7,8,9
SENS 0.02%
7,8,9
SENS 0.01%
7,8,9
SENS 0.05%
7,8,9
SENS 0.1%
7,8,9
SENS 0.2%
7,8,9
SENS 0.5%
7,8,9
SENS 1%
7,8,9
SENS 2%
6
FREQUENCY
5
MODE CH1
4
MODE CH1
3
MODE CH2
2
MODE CH2
1
PULSE TIME
200 - 260VAC 50Hz 1.5VA
100 - 120VAC 60Hz 1.5VA
11 - 26VAC/DC 50/60Hz 95mA max.
ON
OFF
2SECS
OFF
-
S7/S8/S9
S9
S7/S8
S8
S7/S9
S8/S9
S7
S7
S8/S9
S7/S9
S8
S7/S8
S9
S7/S8/S9
-
LOW
HI
PULS
PRES
UNDET
DET
PULS
PRES
UNDET
DET
1 SEC
0.2SEC
DIAGNOSTICS:
SYMPTOM
POSSIBLE CAUSE
The POWER LED is not
No power supply voltage on the
on.
input.
The DETECT LED
There may be a poor connection
flashes erratically.
in the loop or loop feeder.
The detector may be experiencing
crosstalk vith the loop of an
adjacent detector.
The DETECT LED
Faulty loop or loop feeder wiring.
randomly stays on.
Movement of the loop in the
ground.
The LOOP FAULT LED
The loop inductance is to small or
is flashing.
the loop is short circuit.
The LOOP FAULT LED
The loop inductance is to large or
is permanently
the loop is open circuit.
illuminated.
10
PRESENCE /
PULSE RELAY
11
OUTPUT 1
TWISTED
LOOP 1
CABLE
TWISTED
LOOP 2
CABLE
LIVE 220VAC / 12VAC/DC
NEUTRAL
/ 12VAC/DC
EARTH
SOLUTION
Check that the power supply is correctly
wired to the detector. (PINS 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. Is the feeder wire twisted?
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.
7
PRESENCE /
PULSE RELAY
8
OUTPUT 2
3
LOOP 1 INPUT
4
5
LOOP 2 INPUT
6
1
2
POWER INPUT
9
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