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
To Next Page
Loading...
