REOVIB MFS 368
Operating instructions
20
In the case of bowl feeders, it is advisable to mount the sensor as
far as possible on the outer diameter so that the largest possible
vibration displacement is covered.
If the sensor signal is too low, the setpoint's control range is
significantly restricted.
s = vibration displacement
Mounting point 1 = small vibration amplitude
Mounting point 2 = large vibration amplitude
Example of bowl feeder
1. small amplitude with vertical
mounting.
2. larger amplitude when
mounted at the same
inclination angle as the
springs.
Example of linear feeder
The control system and the sensor attached to the feeder form a closed control loop, whereby the signal
supplied by the sensor has a decisive influence on the setpoint's control range. I.e. the feeder is
controlled so that the actual value (feed rate or vibration intensity) corresponds to the specified setpoint
(ideal: 100 % setpoint = 100 % actual value). However, since the actual value depends on the feeder
(frequency, acceleration, vibration amplitude) and also on the sensor's mounting location, the control
range must usually be adjusted.
The adjustment is made with the "Max" parameter in the "Feeder" menu. The measured sensor signal is
adjusted with the value that can be set here. In most cases, a value below 100 must be entered so that
the setpoint’s control range reaches 100 % or appears to be as large as possible.
If no satisfactory adjustment is possible, the accelerometer should be mounted at a location with a larger
vibration amplitude (see example of bowl feeder).
The importance of adjusting this value can be seen, for example, in the time response of the controller.
Where the actual value is badly adjusted, for example, the result can be that the feeder only ramps up
very slowly when it is switched on.
1 2
2
1
s
Sensor
Swing Direction
Mounting Block
Moving Part
Fixed Part
1
2
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