Manual
VEK S4
4
03/09
FEIG ELECTRONIC GmbH
1 Functional
Description
The VEK S4 traffic detector is a dual system for the inductive detection of vehicles. Information about the
speed, length and class of a vehicle can be provided using the measuring system (two loop principle) and its
evaluation. The data determined in this way are compiled in a report and provided to a higher level system
(host computer) for further evaluation.
Features:
•
4-channel induction loop detector
•
two classification modules (for vehicle classification of, e.g. two lanes)
•
automatic speed and length measurement
•
vehicle classification in 8+1 classes according to TLS guidelines 2002
•
vehicle detection and classification in both directions
•
recording of the net time gap (time distance between two vehicles)
•
loop dimensions according to TLS guidelines
1
•
signal output can be adjusted using Open Drain in the case of excessive speed
•
automatic adjustment of the system after switching on
•
continuous readjustment of frequency drifts for largely eliminating environmental influences
•
sensitivity independent from the loop inductance
•
frequency band adjustment
•
long loop supply lines possible (up to 300 m)
•
simple installation using ribbon cable connection
•
RS485
interface
•
4 Open Drain outputs
Other features:
•
compact plastic case, mounting on DIN rail
•
avoidance of reciprocal influencing of the channels using multiplexing methods
•
avoidance of reciprocal influencing of several detectors using synchronisation
•
LED display of the loop conditions
•
insulation between loop and electronics
•
gas surge arrester for improved surge resistance
•
CANopen
Interface
Setting options:
•
five fixed frequency bands independent from the loop inductance
•
head gap of the loops per classification module
•
sensitivity adjustment of the loop pair per classification module
•
adjustment of the vehicle length per classification module
•
classification modules can be disconnected by deactivating the detector channels
•
output can be set as presence signal, direction signal or general fault indicator, signal for excessive
speed, class-selective signal output
•
hardware addresses 2 x (0-15) can be set using DIP switch and address offset via RS485 interface
•
other setting options (4-channel functions) actuation threshold per channel in 256 stages
•
hysteresis drop of 20-80% per channel
•
holding time 1-255 minutes and indefinite per channel
•
scanning
speed
•
direction
logic
Compatibility
•
downwards compatible to the TLS and FEIG protocol of the VEK S3-1
1
The publisher of the TLS (Technical delivery conditions for route stations) is the Federal Highway Research Institute
(BASt), Bergisch Gladbach
