Problem Symptoms And Possible Causes - Motion DMD870 User Manual

Problem Symptoms and Possible Causes

Symptoms
Motor is not rotating
Motor rotates in the
wrong direction
The drive in fault
Erratic motor motion
Motor stalls during
acceleration
Excessive motor and
drive heating
Motion Control Products Ltd.
DMD870 Digital Stepper Drive User's Manual
Possible Problems
No power
Microstep resolution setting is wrong
DIP switch current setting is wrong
Fault condition exists
The drive is disabled
Motor phases may be connected in reverse
DIP switch current setting is wrong
Motor coil problems/motor problem
Control signal is too weak
Control signal is interfered
Wrong motor connection
Motor coil problems
Current setting is too small, losing steps
Current setting is too small
Motor is undersized for the application
Acceleration is set too high
Power supply voltage too low
Inadequate heat sinking / cooling
Automatic current reduction function not being utilised
Current is set too high
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