41
11. Trouble shooting
Please investigate the following points if a trouble occurs by any chance. In addition, check the output voltage
(Refer to P.42) for the case of paragraphs of (2) and (3). When the cause is not clear and it needs to consult NTN on
the troubling state, please inform of the content in detail and concretely with referring the followings in order to be able
to take measures as soon as possible.
Contents of troubles Estimated causes Reference pages/documents/measures
・Wrong connection of power supply or
specification
Check it referring to the paragraph of the
specification in P.43.
・Wrong Wiring
Refer to I/O connection method in P.9.
・Broken fuse
Checks it referring to the paragraph of the
specification in P.43.
・Short-circuit between X1-0V and 24V-+V
or they are not opened.
Check the external control signal ON, referring
to the paragraph of the wiring for outside
control input in P.13
(1) It doesn't vibrate.
・The sensor is confirming the work.
Remove works in the chute.
・Wrong connection of power supply or
specification
Check it referring to the paragraph of the
specification in P.43.
・Wrong adjustment of frequency
Refer to the paragraph of the method of
driving and adjustment in P.21.
・Broken leaf spring
Refer to the manual for the main body.
・It is fixed with metal fittings for
transportation.
Refer to the manual for the main body.
・Loose leaf spring
Refer to the manual for the main body.
(2) The vibration doesn't
increase.
・Overweight of bowl/chute
Refer to the parts feeder guide book.
・ The power-supply voltage exceeds the
permissible value of the controller and
fluctuates.
Check voltages of the power supply and the
output, and remove the cause of the voltage
fluctuation.
・ It is in the resonance state.
Refer to the paragraph of the method of
driving and adjustment in P.21.
Refer to the manual for the main body.
(3) The vibration
fluctuates.
・ The amount of works in the bowl
changes greatly.
The amount of works charged is made
uniform.
・ Wrong wiring
Check the connection of wiring, referring to the
paragraph of the wiring for the external control
input in P.13 and after.
・ The polarity of wiring is different.
Check the connection of wiring, referring to the
paragraph of the wiring for the external control
input in P.13 and after.
・ The sensor is confirming the work.
Remove works in the chute.
(4) The control from the
outside is not effective.
・ Wrong setting of function
Refer to the paragraph of the setting method
of the function in P.26 and after.
・ Wrong setting of function
Refer to the paragraph of the setting method
of the function in P.26 and after
Check the driving method, logic switching of
sensor etc.
(5) The control of the
sensor is not effective.
・ Mistaking because of long time of
ON/OFF delay timer
Check the timer setting value, and check it in a
short time.
(6) The voltage and the
frequency cannot be
set.
・ Isn't the operation lock or the knob lock
turning on?
Refer to the function in P.26 and after or the
paragraph of panel lock in P.36.
Release the operation lock or the knob lock.
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