R03.0
16/05/2019
Page 15
Table
4:
Obligatory values for the working weight
Type
Ideal useful mass [kg]
Max. useful mass [kg]
HLF07-P
0,7 ± 0,05
0,9
HLF12-P
1,2 ± 0,05
1,4
NOTE
Useful and counter masses should correspond to the values speci-
fied in Table 4: .
NOTE
1.
Masses are fully balanced if hardly any vibrations are noticea-
ble in the floor.
2.
When masses are fully balanced, the transport speeds at use-
ful and counter sides are identical.
4.3
Piezo control
The Afag Piezo linear conveyor is a spring and mass vibration system and works by
taking advantage of the resonance behaviour. Please proceed as follows in order to
achieve a stable operating point with the desired conveying capacity when adjusting
the control parameters (voltage and operating frequency):
1.
Start settings: Voltage 80% and operating frequency according to Table 1:
Technical data
2.
Find the resonance point by increasing or decreasing the operating frequency
from the start setting. The resonance point is at the frequency with the highest
amplitude of the vibration system.
3.
Set the operating frequency above the resonance point in 0.1 Hz increments
depending on the conveying capacity required, i.e. increase the operating fre-
quency from the resonance point until the required conveying capacity is
reached. The greater the distance between operating frequency and reso-
nance point, the more insensitive is the operating point to external disturb-
ances.
4.
Fine-adjustment of the conveying capacity is possible by changing the voltage.
Set the voltage as low as possible in order to save the Piezo.
The same conveying capacity can be reached by different combinations of the oper-
ating parameters “voltage” and “operating frequency”. The optimum setting as re-
