Troubleshooting: Causes And Remedies - tau 300SA1 Guía Para La Instalación

ON
GB
Dip-
Switch 7
OFF
Operating mode selection: this setting determines the relay's reaction when the
vehicle (or metal object) is detected.
Dip-
ON
Switch 8
OFF
The detection device must be reset every time the DIP switch settings are changed.
ON
Dip-
Switch 9
OFF
WARNING: When the setting of the DIP # 8 is changed, relay outputs vary, too (see
picture - page 28)
RELAY STATE
Relay
PRESENCE
mode
(norm. closed)
PULSE
mode
(norm. closed)
During switch-on or reset:
make sure the detection area has been cleared of any bits of metal, tools and vehi-
cles before switching on or resetting the detector!

TROUBLESHOOTING: CAUSES AND REMEDIES

Self-diagnostics on sensing loop:
Fault detection circuit – Loop open or frequency lower than 20 kHz
• FAULT LED (red LED): 3 flashes, 3-sec. pause, 3 flashes, 3-sec. pause...this sequence
continues until the loop is fixed and the device is then reset.
• BUZZER: 3 beeps, 3-sec. pause, 3 beeps, 3-sec. pause...this sequence is repeated 5
times.
REMEDY: if there is no break in the loop, increase its frequency by adding more turns of wire
to the loop.
10
FILTER ACTIVE: this setting determines a 2-second delay between
detecting the metal object and the relay activating. It can be used to
prevent false triggering due to small or fast objects moving through the
detection area or electric barriers nearby. If the object stays in the de-
tection area for less than 2 seconds, the relay will not activate.
FILTER NOT ACTIVE
Activates PRESENCE mode (see DIP switch 5)
Activates PULSE mode (see DIP switch 6)
RESET: to reset, set DIP switch 9 to ON for approx. 2 sec., then switch
it back to OFF. The device is reset and the routine test is run on the
sensing loop.
NORMAL
Vehicle
present
N.O.
Closed
(norm. open)
N.C.
Open
N.O. Closed for
(norm. open) 1 sec.
N.C. Open for
1 sec.
Vehicle
not
present
Open
Closed
Open
Closed
P-300SA1
Fault Detection
detection device
circuit not powered
Closed Closed
Open Open
Open Open
Closed Closed