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(4) Driving
①Please set the external control terminal to the driving side (short-circuit
when function J02 is 1). Moreover, please press the RUN key when
you have set the driving control method to the panel control (2 or 3)
with the function J02.
＊Please refer to P.28 and P.31 for the selection of the driving method.
②The data display changes from blinking "0" to lighting, and the voltage
value set with the speed adjustment knob is displayed and the voltage is
output at the same time. Also the RUN pilot light lights.
(5) Frequency adjustment
Please adjust the frequency while the parts feeder is driving.
①Set the speed adjustment knob to scale 6-7 for full wave system
and scale 4-5 for half wave system.
② Press the data key to display the frequency.
③ Press the down key to adjust to the required amplitude while
gradually lowering the frequency.
*1 Initial value of controller’s frequency at the time of shipment from
plant is 140Hz for ECF25 and 70.0Hz (frequency description) for
ECH45.
*2 The display automatically returns to the normal screen at the
time of constant voltage mode when the non-operating state
continues for 20 seconds.
Points for frequency adjustment
・ Please adjust the frequency after works in the bowl are emptied.
・ Please note that it becomes fast-forwarding if the key is kept pressed,
and passes the resonance point (point of maximum amplitude) at a
dash. It turns to a usual speed when sometimes releasing the hand
from the key. When the resonance point has been passed, raise the
frequency with the UP key over the resonance point once, and return
to the operation of (5) –③.
・ The vibration becomes steady when driving at a little higher frequency
(3-10Hz) than the resonance point.
・ There is no distinction between half wave and full wave. Please make
a set frequency half when you drive the main body of half wave.
(Ex.) Half wave→Adjust between 45~70Hz.
・According to conditions such as the material of work, a necessary
speed and the accuracy of array etc., the adjustment of the leaf spring
might become necessary.
・Due to aging of leaf spring for parts feeder main body, the spring
constant may drop and the amplitude may decrease. In such a
case, the amplitude may recover by re-adjusting the frequency.
ＲＵＮ
ＤＡＴＡ
ＥＮＴＥＲ
Display during stop
Display during driving
Adequate range
Low
Frequency (Hz)
High
Resonance point
mplitude
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