8
PARAMETERS DESCRIPTION
Depending on the chosen TMA configuration, the settings are made using two encoding wheels with 16 positions
each and/or using an RS-232 link.
The parameters described here are for the TMA-296 configuration. Other parameters may apply to other TMA
configurations.
1
S
ENSITIVITY
The factory setting fulfills the requirements of the majority of the installations. If the position or the size of the
detection area is not satisfactory, change first the position of the radar (tilt angle and/or height of installation). On
some products, the sensitivity threshold can be lowered to reduce detections beyond the FSK ambiguity distance
(~250 m) and interfering movements at the edge of the detection area.
2
S
ELF
-
MONITORING
The self-monitoring applies to the following parts of the hardware:
-
Micro-processor oscillator
-
Code running
When a failure is detected, the relays are permanently actuated and the flashing LEDs show an error code (see
Tune up procedure for further information).
3
RF
CHANNEL
This parameter allows to shift the radar’s frequency. If two units face each other, they must be put on different
channels as to not interfere with each other.
4
S
PEED THRESHOLD
This parameter defines (a) minimum speed threshold(s) above which the relay is triggered.
5
R
ELAY TRIGGER
This parameter defines the logic for the relay triggering. It can be triggered for speeds above or under the chosen
threshold. This threshold is thus a minimum or maximum value for the relay activation.
6
P
ARAMETERS TO BE SET USING
RS-232
SERIAL COMMUNICATION
6.1
D
ETECTION DISTANCE
This parameter defines the maximum detection range.
6.2
D
ETECTION DIRECTION
This parameter defines the direction of the movements which will trigger the relay: approaching, receding or
bidirectional.
6.3
M
AXIMUM RELAY HOLD TIME
This parameter defines the maximum hold time for the relay in the absence of detection. When this time is elapsed,
the radar will release the relay, regardless of the presence of a vehicle.
6.4
O
THERS
See also p. 11 and following for a complete list of parameters that can be set via RS-232.
