User's Guide

75.1046 V3 July 2005 [Rev. 7/21/2005] Page 4 of 6
A 10 position dip switch is located on the front of the Matrix single detector. Dip switch 3, 5, 6, 7, and 8 configure the relay, while
dip switch 9 controls the duration of the pulse when the Matrix is configured for pulse operation, (as opposed to presence).
Configurations are as follows:
Dip Switch 3:
OFF= FAIL-SECURE MODE Relay is NOT energized when power is applied. Relay is energized upon detection only. In this
mode, the N.O. circuit is open, and the N.C. circuit is closed. Thus, if a closed circuit is required upon detection, one must use the
N.O. and COM terminals since they would close upon detection. When the Matrix is NOT powered, it is in the same state as it
would be for non-detection.
ON = FAIL-SAFE MODE Relay is energized as soon as power is applied, and de-energizes upon detection or power loss. In this
mode, upon powering the detector, the N.O. circuit becomes closed, and the N.C. circuit becomes open. Thus, if a closed circuit
is required upon detection, one must use the N.C. and COM terminals, since they would now be OPEN during non-detection, and
would close upon detection. When the Matrix is NOT powered, it is in the same state as it would be for detection.
III. DIP SWITCHES
After each dip switch change the sensor launches a learning process.
Dip Switch #1
Frequency Adjustments of Loop A (see ADJUSTMENTS on the next page)
Dip Switch #2 Frequency Adjustments of Loop A (with single loop) or Loop B (with dual loops)
Dip Switch #3 Relay configuration : active (fail-secure) or passive (fail-safe_ (see above)
Dip Switch #4
Automatic Sensitivity Boost (ASB option) [recommended for improved truck detection] :
During a detection, the sensitivity increases automatically to 8 times the preset sensitivity
given by the sensitivity potentiometer adjustment. It is limited to the maximum sensitivity
(∆f = 0.005%). It goes back to the preset value after detection stops.
Dip Switch #5 Relay A function : presence or pulse (not used with dual loop in combined mode)
Dip Switch #6 Relay A Pulse type : entry or exit (used only at pulse function)
or Relay B mode (with dual loop in combined mode) (see drawing on next page)
• Non-Directional :
Relay B provides a pulse according to the dip switches #7 and #8 setting.
• Directional A→B :
Relay B provides a pulse only if loop A is detecting before loop B. The logic
detection takes place according to dip switches #7 and #8.
Warning : During the detection, the 2 loops have to detect simultaneously for
a short period to be able to determine the movement direction. During loop
installation make sure the 2 loops are close enough to each other to ensure a
common detection (typical 3 feet).
Dip Switch #7 Relay B function : presence or pulse
Or loop selection for relay B pulse : pulse on Loop B or pulse on Loop A (used with dual
loop in combined mode)
Dip Switch #8 Relay B Pulse type : entry or exit (used only at pulse function)
Dip Switch #9 Pulse duration for both relays (used only at pulse function): 100 ms or 500 ms
Dip Switch #10
Dual loop mode : independent or combined A→B (not used with single loop)
Detection Status Fail-Secure Mode (Active Mode)
(Relay is not energized upon power-on)
Dipswitch 3 OFF
Fail-Safe Mode (Passive Mode)
(Relay becomes energized upon power-on)
Dipswitch 3 ON
No Detection
The COM and N.O. terminals are OPEN.
COM and N.C. terminals are CLOSED.
The relay is de-energized.
The COM and N.O. terminals are CLOSED.
COM and N.C. terminals are OPEN.
The relay is energized.
Detection
The COM and N.O. terminals are CLOSED.
COM and N.C. terminals are OPEN.
The relay is energized.
The COM and N.O. terminals are OPEN.
COM and N.C. terminals are CLOSED.
The relay is de-energized.
Upon Power Loss
The COM and N.O. terminals are OPEN.
COM and N.C. terminals are CLOSED
The relay is de-energized.
The COM and N.O. terminals are OPEN.
COM and N.C. terminals are CLOSED.
The relay is de-energized.
DIPSWITCH
SETTINGS
DIPSWITCH
SETTINGS
Same
Same