1b 2a1a
24V 2b0V
22.50 74.00
80.00
1 2 3 4
ON DIP
5
6 7 8
24V
1b
2b
2a
0V
1a
1
2
1
2
1
2
5'
sensitivity ch. 1
sensitivity ch. 2
frequency
5' holding time
direction mode
output mode
*) direction mode: pulse on covering both loops
normal mode: pulse only on channel 2 (after covering)
*) flashing = tuning and loop frequency signalization
**) may be changed by setting jumper on the board
operating voltage
24V AC/DC ±10 %
power
detector is tuning
loop free
covered / pulse signal
loop failure
detector status
relays 250mA / 24V AC/DC relay 1
(min. 1mA / 5V) relay 2 **) **)
off
flashing *)
on
on
off
off
off
off
on
on
LED green LED red n.o. n.c.
low . . . . . . . high
low
5 minutes
off
presence
high
on
pulse *)
1
2
Connect Loops to
these terminals
Green Flashing, Red OFF:-
Green ON, Red OFF:-
Red ON, Green ON:-
Green ON-OFF-ON:-
Red ON, Green OFF:-
Red OFF, Green OFF:-
0V
24V
Relay 2
Relay 1
Loop Connections
L.E.D. Functions
Detector is Tuning
Loop Free
Loop is Covered
Pulse Output
Loop Fail
Power OFF
Loop Detector Layout
Operating Instructions
1. Connect the power, ground, loop & output (See Terminal & Loop Connections).
2. Sensitivity of Loop 1 is set by switches `1` & `2` (See Function Settings).
3. Sensitivity of Loop 2 is set by switches `3` & `4` (See Function Settings).
Terminal Connections
Title:- Drawing No:-
Revision No:-
Drawn By:-
Checked By:-
Page No:-
Rev Date:-
Date:-
Appr' By:-
Stuart Rd, Manor Park, Runcorn, Cheshire, WA7 1TS
T: +44 (0)1928 579050
www.linkcontrols.co.uk
F: +44 (0)1928 579259
sales@linkcontrols.co.uk
Link Controls
MFZ
LC-1687
26/11/99
B 25/02/09
1 of 2
S.B.P.
R.A.H. S.L.
VEK M2H LOOP DETECTOR MODULE
(STOCK CODE: 37-4078)
Function
Loop Free
Loop Covered
Loop Fail
Detector is Tuning
Power Off
1
1
2
2
3
3
Loop 1
Loop 2
Relay Function
As standard, both of the relays are Normally Open (N/O). To change Relay 2 to Normally Closed (N/C),
carefully open the detector housing and place the jumper (JP2) to the following position...
:Normally Open :Normally Closed
Note:- For additional information, please see side of loop detector
Function Settings
DIP Switches 1 & 2 :- Loop 1 sensitivity (4 steps)
DIP Switches 3 & 4 :- Loop 2 sensitivity (4 steps)
DIP Switch 5:- Frequency (High / Low)
DIP Switch 6:- Holding time (5 mins - Infinity)
Note:- Loop will recalibrate after 5 minutes constant detection
DIP Switch 7:- Direction detection
Note:- Directional operation is used for Traffic Management ONLY
DIP Switch 8:- Presence / Impulse selection
Note:- If Impulse operation is selected, the 1st loop to be activated will give a Presence signal when the
2nd loop is clear, a Pulse signal will then be given.
8
8
7
7
6
6
5
5
4
4
4
4
ON
ON
ON
ON
3
3
3
3
2
2
2
2
ON
ON
ON
ON
1
1
1
1
:High
:5mins
:Normal Operation
:Presence Operation
:Low
:Infinite
:Directional Operation
:Impulse Operation
MIN.
MIN.
MAX.
MAX.
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