Reset Button; Dip Switch Settings; Description Of Functions; Led Status Indicators - Feig Electronic VEK MNH1-R24-A Kurzanleitung

VEK MNH1-R24-A
3.3.2 Relay outputs with changeover contact
The relay outputs are designed as changeover contacts. This allows the
contacts to be connected as normally closed (NC) or as normally open
(NO) contacts. The relays are potential-free and suitable for many
different switching modes.
The analogue outputs of the (R24) relay variants are connected to the red
and yellow terminal blocks as shown in the following illustration.
NO1
NO2
COM1
COM2
NC1
NC2
Fig. 4: Relay connections 1 (yellow) and 2 (red)

4 Description of functions

4.1 LED status indicators

The LEDs (light emitting diodes) on the front side indicate the state of the
loops and the detector.
There are two LEDs for each loop channel:
•
The red LED indicates the coverage status of the respective loop
•
The blue LED indicates the operating status of the detector
Red Blue
Description of status
LED LED
No power supply, detector inactive
Detector ready, loop connected, no object detected
Detector ready, loop connected, object detected
No loop connected, loop break, loop closure
Ready for operation following earlier, now rectified,
loop error or
settings changed with Detector Tool (DIP switch not
1 Hz
up-to-date)
Frequency alignment is running
5 Hz
After frequency adjustment, both LEDs
simultaneously display the set loop frequency in a
flash code (see Flash code illustrated example)
Tab. 5: LED signal colours
Key to LED symbols
Lit up Off
Flashing Frequency
LED flash code following a frequency alignment
Fig. 5: LED display of loop frequency
VEK MNH1-R24-A QUICK START GUIDE 1.4 EN
Normally open contact to output 1 or
output 2
Common contact to output 1 or
output 2
Normally closed contact to output 1
or output 2

4.2 Reset button

The device is reset using the reset button on the front as follows:
Function Description
reset / runs a frequency
readjustment readjustment and clears the
LED fault messages
factory settings resets the device to factory
settings (DIP switch default
settings)
Tab. 6: Reset functions

4.3 DIP switch settings

Depending on the output function settings, presence, pulse and loop fault
signals are output.
For the pulse signal, it is also possible to select whether an output should
occur when a loop is driven past or vacated.
In addition to inversion of the output signal, both outputs can individually
be permanently switched on or off.
Function Description
Sensitivity Switch-on threshold for the signal output when a
loop is covered
Frequency level Frequency of the loop oscillating circuit in two
levels
Hold time until Maximum duration of the output signal up to the
readjustment automatic frequency readjustment of the loop
channel
Output signal 2 Switching between continuous and pulse signal
mode on output 2
Output signal 2 time Time of output signal for activated pulse signal
on output 2
Output signal Switching between open circuit (not inverted)
inversion and closed circuit principle (inverted) for the
output signals
Direction detection Switching between presence and travel direction
detection for both outputs (dual-channel variants)
Direction Logic Evaluation logic of the travel direction when
loops are covered, depending on the application
(see full operating manual!)
Tab. 7: Description of the settings
The single-channel variants have an 8-pole DIP switch for configuring the
detector.
DIP Designation Function
1 Sense a Loop 1 sensitivity
2 Sense b Loop 1 sensitivity
3 Frequency Frequency step
4
Hold time Hold time until readjustment
5 Output 2 Output signal 2 mode
6 Edge 2 Output signal 2 time
7 Inv. Out 1 Output signal 1 inversion
8 Inv. Out 2 Output signal 2 inversion
Tab. 8: DIP switch assignment (default)
3 | 4
Press LED
button
1 second red LED
flashes
5 seconds blue LED
flashes
SENSORS