Allen-Bradley Kinetix 350, Руководство пользователя

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Rockwell Automation Publication 2097-UM002D-EN-P - April 2017 121
Troubleshoot the Kinetix 350 Drive Chapter 7
You cannot obtain the motor
acceleration/deceleration that you
want.
Torque Limit limits are set too low. Verify that current limits are set properly.
Incorrect motor that is selected in configuration.
Select the correct motor and run Tune in Logix Designer
Application again.
The system inertia is excessive.
• Check motor size versus application need.
• Review servo system sizing.
The system friction torque is excessive. Check motor size versus application need.
Available current is insufficient to supply the correct accel/decel rate.
• Check motor size versus application need.
• Review servo system sizing.
Acceleration limit is incorrect. Verify limit settings and correct them, as necessary.
Velocity Limit limits are incorrect. Verify limit settings and correct them, as necessary.
Motor does not respond to a
velocity command.
The axis cannot be enabled for 1.5 seconds after disabling.
Disable the axis, wait for 1.5 seconds, and enable the
axis.
Enable signal has not been applied or the enable wiring is incorrect.
• Check the controller.
• Check the wiring.
The motor wiring is open. Check the wiring.
The motor thermal switch has tripped.
• Check for a fault.
• Check the wiring.
The motor has malfunctioned. Repair or replace the motor.
The coupling between motor and machine has broken (for example, the motor
moves, but the load/machine does not).
Check and correct the mechanics.
Primary operation mode is set incorrectly. Check and properly set the limit.
Velocity or current limits are set incorrectly. Check and properly set the limits.
Presence of noise on command or
motor feedback signal wires.
Recommended grounding per installation instructions have not been followed.
• Verify grounding.
• Route wire away from noise sources.
• See System Design for Control of Electrical Noise,
publication GMC-RM001 .
Line frequency can be present.
• Verify grounding.
• Route wire away from noise sources.
Variable frequency can be velocity feedback ripple or a disturbance that is
caused by gear teeth or ballscrew balls, and so forth. The frequency can be a
multiple of the motor power transmission components or ballscrew speeds
resulting in velocity disturbance.
• Decouple the motor for verification.
• Check and improve mechanical performance, for
example, the gearbox or ballscrew mechanism.
No rotation
The motor connections are loose or open. Check motor wiring and connections.
Foreign matter is lodged in the motor. Remove foreign matter.
The motor load is excessive. Verify the servo system sizing.
The bearings are worn. Return the motor for repair.
The motor brake is engaged (if supplied).
• Check brake wiring and function.
• Return the motor for repair.
The motor is not connected to the load. Check coupling.
Motor overheating
The duty cycle is excessive.
Change the command profile to reduce accel/decel or
increase time.
The rotor is partially demagnetized causing excessive motor current. Return the motor for repair.
Table 56 - General System Behavior (Continued)
Condition Potential Cause Possible Resolution