Feig Electronic VEK M1H Bedienungsanleitung Seite 4

27.06.2017
FEIG ELECTRONIC GmbH Lange Straße 4
D-35781 Weilburg/Lahn
Operation Instruction
VEK M1H
1-channel induction loop detector
for installation on DIN-rail
Please read these instructions and safety information and warn-
ings attentively before initial operation of the detector !
1 General
Applications:

Barrier controls

Door and gate controls

Parking and traffic technology
Features:
The induction loop detector VEK M1H is a system for inductive recogni-
tion of vehicles with the following characteristics:

Isolated transformer between loop and detector electronics

Automatic calibration of the system after switching on

Continuous rebalancing of frequency drifts

Usable for single place parking space supervising

Sensitivity independent of the loop inductivity

Presence signal by LED display

Potential free relay contacts for presence and pulse output

Pulse output while leaving the loop

Signalling of loop frequency by LED

Loop connection plug-in for diagnosis
For planning and installation of loops please note our manual "detection
of vehicles with the induction loop detector".
2 Setting options
2.1 Sensitivity
The setting of the sensitivity calls the electronics to a value of frequency
deviation which a vehicle must produce for setting the output of the
detector. The sensitivity can be adjusted in 4 steps with the two DIP-
switches 's' on top of the front panel.
sensitivity step
(0,64 % f/f)
1 low
(0,16 % f/f)
2
(0,04 % f/f)
3
(0,01 % f/f)
4 high
VEK M1H_DE_GB_FR_NL_IT_ES_CE_FAAC_1.docx
DIP-switch 's'
4 | 19
2.2 Hold time and Reset
The hold time can be adjusted with DIP-switch 'h'.
At the completion of hold time it will be displayed "free loop" and the
detector calibrates automatically. The hold time starts with the occupa-
tion of the loop.
hold time
5 minutes
infinite
An automatic calibration of the loop frequency will be done by the
detector after switch-on of the power supply. In case of short power cuts
<0,1 s there is no calibration.
A reset with calibration can be effected by changing the hold time
setting.
2.3 Operation principle of the presence relay
The detector has one relay for presence output and another relay for
pulse output each with a potential free contact. The operation principle
of the presence relay can be changed with the DIP-switch 'r'
operation principle presence
relay
contact normally closed
contact normally open
2.4 Frequency adjustment
The operation frequency of the detector can be adjusted in two steps by
the 3-pole connection jack in the front panel. The permissible frequency
range is 30 kHz to 130 kHz. The frequency depends on the loop induc-
tivity (depending itself on: loop geometry, number of loop turns and loop
lead) and the adjusted frequency step.
upper position = high frequency
lower position = low frequency
3 Outputs and LED
3.1 Contact mode of the relays
The following table shows the state of the relay contacts depending on
the detector mode.
presence relay
detector mode
free loop close
covered loop open
loop gets free close
loop failure open
power off close
In case of a loop failure the detector checks the loop condition cyclically
and continues automatically after elimination.
3.2 LED signals
The green LED signals that the detector is ready for operation. Via the
red LED, the activation of the relays output is announced depending on
the occupation status of the loop.
LED green LED red
loop loop
control condition
off off
flashing off
on off
on on
off on
 Copyright 2017 by FEIG ELECTRONIC GmbH
DIP-switch 'h'
DIP-switch 'r'
pulse relay
open open
close open
open 200 ms pulse
close open
close open
detector function
power off
calibration or output of
frequency
detector ready for operation,
free loop
det. ready f. operation,
covered loop
loop failure