MODEL AX2DL-XP
TWO CHANNEL LOOP DETECTOR with
DIRECTIONAL LOGIC AND TWO PRESENCE RELAYS
OPERATING INSTRUCTIONS
I
General
The Model AX2DL-XP is a two channel inductive loop detector that monitors two independent inductive loops and
provides a separate presence relay output for each channel (1 and 2), AB directional logic relay output and BA
directional logic relay output. The loops connected to Channels 1 and 2 are scanned (alternating on and off
cycles), which eliminates crosstalk between loops connected to the same Model AX2DL-XP detector.
Please verify source voltage before applying power.
The model designation indicates the input power required,
number of connectors, Fail-Safe / Fail-Secure configuration, and contact designation for the detector as follows.
Model AX2DL-XP-x-2C-x
Blank = Fail-Safe
S
= Fail-Secure
2C
= Two 11-pin connectors
3
= 120 VAC
4
=
12 VDC / 24 VDC / 24 VAC
8
=
240 VAC
The detector is factory configured for either Fail-Safe or Fail-Secure operation (see unit side label). The output
state of the either channel in Fail-Safe or Fail-Secure mode is listed in the table below.
Fail-Safe
Fail-Secure
Power Failure
Loop Failure
Power Failure
Loop Failure
Ch 1 / Ch 2 Output
No Call
Call
No Call
No Call
AB / BA Output
Call
Call
No Call
No Call
II
Indicators and Controls
i
Detect / Fail LEDs
The detector has one green and two red LED indicators that are used to provide an indication of the detector’s
power status, output state, and/or loop failure conditions. The table below lists the various indications and their
meanings.
Status
POWER LED
CH 1 / CH 2 DETECT LED
OFF
No power or low power
No vehicle present and Loop OK
ON
Normal power to detector
Vehicle present (Detect)
Flash
N/A
1 Hz rate, 50% duty cycle - Shorted Loop
10 Hz rate, 50% duty cycle - Open Loop
3 Flashes per second - Prior Loop Failure
(Loop has failed and the problem has been corrected.)
NOTE: If a vehicle is detected, the LED will turn
ON even if a prior loop failure condition exists.
NOTE: If the supply voltage drops below 75% of the nominal level, the power LED will turn off, providing a visual
indication of low supply voltage. Model AX2DL-XP detector will operate with supply voltage as low as 70% of
nominal supply voltage.
Reno A&E
4655 Aircenter Circle
Reno, NV 89502-5948 USA
Telephone: (775) 826-2020
Fax: (775) 826-9191
Website: www.renoae.com
E-mail: [email protected]
