Non-Drive Related Problems - Parker Compumotor TQ10 User Manual

Non-Drive Related Problems

Problems During Move
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When the drive is powered up, enabled, and operating properly:
• The POWER ON LED is illuminated green
• No LEDs are illuminated red
• The fault output is LOW
These conditions indicate that the TQ10 is probably not the source of the problem. The
next table summarizes other possible sources of problems.
TROUBLESHOOTING TABLE
Possible Source
of Problem
Cycle power to clear fault latch.
CONTROLLER/
Verify control voltage at TQ10 Torque Drive command input.
INDEXER
Verify step/direction pulses at TQ10SD step/direction inputs.
Check for motor problems. Check motor coils for continuity,
MOTOR
shorts, proper resistance. Check Hall and Phase wiring.
Check for jams, binds, increased friction, etc.
MECHANICAL
SYSTEM Uncouple motor from load to test motor separately.
Check motor wiring: phases, Hall effects.
WIRING
Check controller/indexer wiring, especially enable.
Verify that drive's heatplate has good thermal contact with
OVERHEATING
heatsink. Check mounting screws. Provide sufficient ventilation.
Verify AC power mains supply delivers enough power during
AC POWER
entire move without undervoltage, especially during acceleration.
Check speed/torque limitations. Check for excessive friction,
MOVE PROBLEMS
regeneration, problems with gravity, transient undervoltage, etc.
Check for problems caused by electrical noise. Consult the
ELECTRICAL NOISE
Compumotor sales guide for possible solutions. Check grounds.
Some problems occur transiently during a move, or do not affect the LEDs. Others may be
due to wiring mistakes, or failure of other components in the system (controller or indexer,
encoder, motor, etc.). The sections below will help you identify such problems.
Speed/Torque Limitations
Make sure that you are not commanding a move that requires the motor to go faster than it
can, or use more torque than it can produce. Check the motor's speed/torque curve for your
operating conditions.
Acceleration
Some problems during acceleration can be caused by an undervoltage on the AC power line
(this can be a transient event), an unrealistic move profile, or too much load inertia.
Deceleration
Some problems during deceleration can be caused by excessive regeneration, resulting in an
overvoltage fault.
Excessive Friction
Too much friction in your system might cause move problems. Excessive friction can cause
trouble when mechanical components in a system age. As friction increases, problems may
occur in a system that had previously been working well.
SOLUTION
 Troubleshooting 5 5