Appendix; Twelve Month Limited Warranty; Exclusions; Obtaining Warranty Service - SUNWIND M542H User Manual

Sunwind Electronics Company Ltd.
Motor rotates in the wrong direction
The driver in fault
Erratic motor motion
Motor stalls during acceleration
Excessive motor and driver heating

APPENDIX

Twelve Month Limited Warranty

Sunwind Electronics Company Limited warrants its products against defects in materials and
workmanship for a period of 12 months from shipment out of factory. During the warranty period,
Sunwind will either, at its option, repair or replace products which proved to be defective.

Exclusions

The above warranty does not extend to any product damaged by reasons of improper or inadequate
handlings by customer, improper or inadequate customer wirings, unauthorized modification or
misuse, or operation beyond the electrical specifications of the product and/or operation beyond
environmental specifications for the product.

Obtaining Warranty Service

To obtain warranty service, a returned material authorization number (RMA) must be obtained
http://www.stepmotordriver.com
Stepper Motor Driver:M542H
The driver is disabled
Motor phases may be connected in reverse
DIP switch current setting is wrong
Something wrong with motor coil
Control signal is too weak
Control signal is interfered
Wrong motor connection
Something wrong with motor coil
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 utilized
Current is set too high
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