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16.2 Position/Speed trouble
Trouble
Possible
cause
How to diagnose the trouble Solutions
Incorrect
origin
position
If it is a pushing operation, repeat return
to origin operations several times to
check if the actuator returns to the origin
correctly.
Take measure to make the actuator operates
normally (remove foreign matters that
interferes with the actuator movement, etc.)
Inappropriate
basic
parameters
Check if the values for the parameter are
appropriate and the program is correct.
Review the maximum speed, the
maximum acceleration and the maximum
deceleration of the actuator.
Modify the parameters to appropriate ones and
test the operation.
7. Setting Data Entry (page 28)
The
actuator
does not
move to
the correct
position.
Inappropriate
specifications
Check if the controller’s specifications are
appropriate, the power supply is suitable
and the controller is compatible to the
actuator.
Take appropriate measures according to this
manual.
3. Product Specifications (page 11)
Wiring fault
Check if the controller is wired correctly
according to this manual without any
breaks and short circuits
Correct the wiring so that the input/output of
each signal is performed appropriately.
Separate the power supply for the CN1
controller power supply and the CN5 I/O
signal power supply.
4. External Wiring Diagram (page 16)
6.4 Parallel I/O Wiring Example (page 27)
Inappropriate
specifications
Check if the controller’s specifications are
appropriate, the power supply is suitable
and the controller is compatible to the
actuator.
Take appropriate measures according to this
manual.
3. Product Specifications (page 11)
Signal timing
Check the timing of the signal from the
PLC to the controller.
PLC processing delay and controller scan
delay are generated. Please ensure an interval
of 15ms(30 ms if possible) or more between
input signals, and maintain the signal state.
8.4 Controller input signal response time
(page 36)
The
actuator
does not
move
correctly.
Data writing
failure
Check whether data (step data,
parameter) is written correctly.
Do not turn off the controller input power
or remove the cable while data is being
written (green light flashing).
Input correct data (step data, parameter) again
and confirm operation.
3.2 Parts description (page 12)
7. Setting Data Entry (page 28)
Inappropriate
basic
parameters
Check if the values for the parameter are
appropriate and the program is correct.
Review the maximum speed and the
maximum acceleration of the actuator.
Modify the values of the parameters to
appropriate ones and test the operation.
7. Setting Data Entry (page 28)
Inappropriate
step data
Check if a trapisodial acceleration /
deceleration is programmed for the
actuator operation. In case of such
operation, the actuator may start slowing
down before it reaches the maximum
speed.
Modify the setting to make the moving distance
longer or the acceleration larger.
7. Setting Data Entry (page 28)
Inappropriate
specifications
Check if the controller’s specifications are
appropriate, the power supply is suitable
and the controller is compatible to the
actuator.
Take appropriate measures according to this
manual.
3. Product Specifications (page 11)
Insufficient
speed
Voltage drop
Check if there has been any temporary
voltage drop in the power supply.
(If there is a temporary voltage drop in the
power supply, the EMG terminal of CN1
power connector will turn OFF so the
actuator will stop. However, this stop will
be released when the voltage recovers.)
There is a possibility of a momentary voltage
drop because the capacity of the power supply
is insufficient, or the power supply has inrush
current restraining specification.
3. Product Specifications (page 11)
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