26
(A) Driving by constant voltage mode (Initial setting mode)
(A) – 1 Driving
Driving by constant voltage mode becomes to driving mode by adjusting
output voltage and frequency manually.
①
Please set the external control terminal to the driving side (short-circuit when
the 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.36 and P.39 for the selection of the driving method.
②
The 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.
(A) - 2 Frequency adjustment
Please adjust the frequency while the parts feeder is driving.
It becomes
easier to know the degree of adjustment.
①
Set the speed adjustment knob to scale 6-7 for the full wave system
and scale 4-5 for the 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 frequency at time of shipment from plant is 70.0Hz
(Frequency notation)
*
２
The display automatically returns to the normal screen 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 (A)-2 –
③
.
・
The vibration becomes steady when driving at a little higher frequency
(3-10Hz) than the resonance point.
Normally it is used between 45
～
65Hz.
・
Please note that the adjusting point for resonance frequency is different
from one for ECB96 and is the same as for standard controller. When
the load current exceeds 12A, make F/V curb of function J04 to P.
(Refer to P.36 and 39)
・
According to conditions such as the material of work, a necessary
speed and the accuracy of array, 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.
Display during stop
Display during driving
Adequate range
Low
Frequency (Hz)
High
Resonance point
Ampl
itu
de
RUN Vib.A
LIMIT
ＤＡＴＡ
ＥＮＴＥＲ
