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6-49
Rev.2.00
1
Before Using the Products
2
Preparation
3
Setup
4
Trial Run
5
Adjustment
6
When in T
rouble
7
Supplement
Classification
Causes
Measures
Adjustment
Gain adjustment is not proper.
Increase the setup of Pr1.01, 1st velocity loop gain. Enter torque
filter of Pr1.04 and increase the setup of Pr1.01 again.
Wiring
Servo on signal of Connector X4
is chattering.
Check the wiring and connection of the Connector X4. Correct the
wiring and connection so that the Servo-ON signal can be turned
on normally. Review the controller.
6
4. Troubleshooting
When in Trouble
Unstable Rotation (Not Smooth)
6
4. Troubleshooting
When in Trouble
Positioning Accuracy Is Poor
Classification
Causes
Measures
System
Position command is not correct.
(Amount of command pulse)
Count the feedback pulses with a monitor function of the USB
conmmunication (PANATERM) or feedback pulse monitor mode of
the console while repeating the movement of the same distance
.
If
the value does not return to the same value, review the controller.
Adjustment
Position loop gain is small.
Check the position deviation with the monitor function of the USB
communication (PANATERM) or at the monitor mode of the console.
Increase the setup of Pr1.00 within the range where no oscillation
occurs.
Parameter
Setup of the positioning
complete range is large.
Lower the setup of Pr4.31 within the range where no chattering of
complete signal occurs.
Setup of the division/
multiplication is not correct.
Check if the repetition accuracy is same or not. If it does not
change, use a larger capacity motor and driver.
Velocity loop gain is proportion
action at motor in stall.
Set up Pr1.02 and Pr1.07 of time constant of velocity loop
integration to 9999 or smaller.
Wiring
Servo on signal of Connector X4
is chattering.
Check the wiring and connection of the connector X4.Correct the
wiring and connection so that the servo-On signal can be turned on
normally. Review the controller.
Installation
Load inertia is large.
Check the overshoot at stopping with graphic function of the USB
communication (PANATERM) . If no improvement is obtained,
increase the driver and motor capacity.
Related page
• P.3-39 “Details of Parameter” • P.2-47 “Wiring to the Connector, X4”
• P.7-9 “Outline of Setup Support Software “PANATERM”
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