- 13 -
Scale made of iron, etc.
<For information: How to check the number of leaf springs for surplus or shortage>
Check according to the following method whether the number of leaf
springs currently mounted is excessive or short for the bowl and the
alignment mechanism used.
Slightly loosen the leaf spring mounting bolt located at one place while
allowing continuous vibrations of the machine, and check the amplitude.
•
Amplitude increased.
o
Number of leaf springs is too large.
•
Amplitude decreased.
o
Number of leaf springs is too small or proper.
Optimum number of leaf springs is that sufficient amplitude is ensured and
that the amplitude decreases when the bolt is loosened.
[2] Changeover of frequency in controller
Set the frequency as shown below. For details, refer to the Instruction Manual for individual
controllers.
Power source frequency
In the case of 50Hz
In the case of 60Hz
Setting of DIP switch
by K-EGA57.
6:
21
6:
2))
6:
2))
6:
21
9. Troubleshooting
If any trouble should be found, check the following points:
(1) No vibration at all
In this case, distinguish the trouble between mechanical system and electric system as shown below
for checking.
Turn ON the POWER switch, remove the cover, and bring an iron piece close to the vicinity of the
magnet core.
[1] When the iron piece is attracted strongly during vibration
Electric system is normal. Accordingly, the cause of the trouble
lies in either setting of the number of leaf springs of the bowl
feeder or wrong designation of the power frequency.
[2] When the iron piece is not attracted at all
Trouble of electric system including controller and magnet.
However, if the controller is equipped with a sensor, it is
possible that the detection head detects a workpiece. It is not a
trouble. Align optical axis or recheck proximity distance, etc.
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