Dometic CRUISE CONTROL MS880 Handleiding pagina 5
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Beschikbare talen
Beschikbare talen
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MS880
➤ Test the engine speed signal on the electronic module of the cruise control:
– Connect the red cable of the voltmeter or oscilloscope to the yellow cable in
the connecting plug of the electronic module.
– Connect the second cable of the voltmeter or oscilloscope to earth.
➤ Make sure the signal at the electronic module matches that of the vehicle.
If the engine speed signal on the electronic module matches that of the vehicle, the
fault may be due to an incorrect PPM setting. If you chose to record the travel speed
or engine speed signal using the blue cable, the speed controller does not operate
using the engine speed signal (yellow cable).
➤ To change the PPM setting, see chapter "Starting automatic mode" on page 9
The LED does not flash when a travel speed signal is received (blue cable)
This is how to check whether the cruise control is receiving an incorrect engine
speed signal:
➤ Check the travel speed signal using a voltmeter or an oscilloscope.
➤ Make sure the signal is between 1.5 V and 24 V and the frequency range is
between 6 Hz and 8.5 kHz.
➤ Check that the blue cable is not damaged and is properly connected to the travel
speed signal.
➤ Test the travel speed signal on the electronic module of the cruise control:
– Connect the red cable of the voltmeter or oscilloscope to the blue cable in
the connecting plug of the electronic module.
– Connect the second cable of the voltmeter or oscilloscope to earth.
➤ Make sure the signal at the electronic module matches that of the vehicle.
If the travel speed signal on the electronic module matches that of the vehicle, the
fault may be due to an incorrect PPM setting. If you chose to record the travel speed
or engine speed signal using the yellow cable, the cruise control does not operate
via the travel speed signal (blue cable).
➤ To change the PPM setting, see chapter "Starting automatic mode" on page 9
EN
Troubleshooting
5
