Barrier MHTM
TM
MicroDrive
Parameterising control unit
5815,5001US / Version 02.66
145
10.15.2 Reconciling and setting the operating frequency of the induction
loop
Operating frequency requirements
The operating frequency must fulfil following requirements:
When driving over the induction loop with a vehicle, a significant
frequency increase must be measurable. Chose stage 5 or 6 for
sensitivity. The relative frequency change (
f/f) must be at least
0.1%. The higher the relative frequency increase, the higher the
operating safety of the induction loop.
The induction loops of a control unit operate alternating, and
can therefore not affect each other.
However, to avoid interferences by frequency coupling from
external loop detectors or other control units in the direct
proximity, a frequency clearance of at least 10000 Hz must be
kept between them. For this, the menu "Freq. Shift" is used to
set the frequency option to "Low" or "High", or to deactivate or
adjust the induction loop windings number.
Reference working frequency via
the menu “Information" ( )
1. The operating view is displayed.
See page 106, Fig. 44.
2. Press left operating button .
3. Press the left control button repeatedly, until the menu
"Detector 1 (A-B)" is displayed.
4. Press second operating button from the left .
5. The barrier is referenced. The loop symbols flash during
reconciliation.
6. Check working frequencies. If required, perform settings like
sensitivity, etc. in the menu "Detector 1 (A-B)" in the main
menu.
7. Perform one of the following steps:
For a "Detector" plug-in module: Use the right button
to
leave the "Detector 1 (A-B)" menu. The operating view is
displayed.
For two "Detector" plug-in modules: Press the third opera-
ting button from the left . The "Detector 2 (C-D)" menu is
displayed.
8. The barrier is referenced. The loop symbols flash during
reconciliation.
9. Check working frequencies. If required, perform settings like
sensitivity, etc. in the menu "Detector 2 (C-D)" in the main
menu.
10. Use the right button
to leave the "Detector 2 (C-D)" menu.
The operating view is displayed.
Содержание MHTM MicroDrive
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