SMC Networks LECP7-XB54 Series, Руководство по эксплуатации

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8. 2 Position/ Speed troubles
Problem
Possible
cause
Investigation method and
location of possible causes
Countermeasures
Displacement
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.
Perform return to origin several times to
check the origin position.
Check if foreign matter is caught in the
product by operating the actuator.
Inappropriate
parameters
Check if the values for the parameter
are appropriate and the program is
correct.
Check if parameter values are correct.
Review the maximum speed, the
maximum acceleration and the
maximum deceleration of the actuator.
Review the maximum speed and the
maximum acceleration of the actuator.
Modify the parameters to appropriate ones
and test the operation.
Inappropriate
specification
Check if a product with a suitable
specification was selected. Reconfirm
the combination of the power supply and
the actuator and controller.
Check if the product number of the
controller actuator is appropriate for the
used actuator.
Not move to
the correct
position
Incorrect writing
Check if the wiring is correct.
Refer to the operation manual of the
controller to check wiring, for broken
wires and short-circuits.
Correct the wiring so that the input/output of
each signal is performed correctly.
Separate the power supply for the
CN1controller power supply and the CN5
I/O signal power supply.
Inappropriate
specification
Check if a product with a suitable
specification was selected. Reconfirm
the combination of the power supply and
the actuator and controller.
Check if the product number of the
controller actuator is appropriate for the
used actuator.
Signal
timing
Check the timing of the signal from the
PLC to the controller.
A process delay in the PLC or a scanning
delay of the controller may occur, so
continue the input signal combination for
30ms or longer.
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.
Speed does
not reach
the desired
speed.
Inappropriate
parameters
Check if parameter values are correct.
Review the maximum speed and the
maximum acceleration of the actuator.
Modify the parameters to appropriate ones
and test the operation.
Start
pattern
Non-conformance
If the operation pattern is triangular, the
actuator may start slowing down before
it reaches the maximum speed.
Lengthen the travel distance, or set a larger
acceleration value.
Inappropriate
specification
Check if a product with a suitable
specification was selected. Reconfirm
the combination of the power supply and
the actuator and controller.
Check if the product number of the
controller actuator is appropriate for the
used actuator.