MA860H Microstepping Driver Manual V1.0
Tel: +086 0755-26434369 13 Web Site: www.leadshine.com
Problem Symptoms and Possible Causes
Symptoms
Possible Problems
No power
Microstep resolution setting is wrong
DIP switch current setting is wrong
Fault condition exists
Motor is not rotating
The driver is disabled
Motor rotates in the wrong direction
Motor phases may be connected in reverse
DIP switch current setting is wrong
The driver in fault
Something wrong with motor coil
Control signal is too weak
Control signal is interfered
Wrong motor connection
Something wrong with motor coil
Erratic motor motion
Current setting is too small, losing steps
Current setting is too small
Motor is undersized for the application
Acceleration is set too high
Motor stalls during acceleration
Power supply voltage too low
Inadequate heat sinking / cooling
Automatic current reduction function not being utilized
Excessive motor and driver heating
Current is set too high
MA860H Microstepping Driver Manual V1.0
Tel: +086 0755-26434369 13 Web Site: www.leadshine.com
APPENDIX
Twelve month limited warranty
Leadshine Technology Co., Ltd. warrants its products against defects in materials and
workmanship for a period of 12 months from shipment
out of factory. During the warranty period,
Leadshine 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
from customer service at e-mail:
before returning product for service.
Customer shall prepay shipping charges for products returned to Leadshine for warranty service,
and Leadshine shall pay for return of products to customer.
Warranty limitations
Leadshine makes no other warranty, either expressed or implied, with respect to the product.
Leadshine specifically disclaims the implied warranties of merchantability and fitness for a
particular purpose. Some jurisdictions do not allow limitations on how long and implied warranty
lasts, so the above limitation or exclusion may not apply to you. However, any implied warranty of
merchantability or fitness is limited to the 12-month duration of this written warranty.
Shipping failed product
If your product fail during the warranty period, e-mail customer service at
obtain a returned material authorization number (RMA) before returning product for service.
Please include a written description of the problem along with contact name and address. Send
failed product to distributor in your area or: Leadshine Technology Co., Ltd. 3/F, Block 2, Nanyou
Tianan Industrial Park, Nanshan Dist, Shenzhen, China. Also enclose information regarding the
circumstances prior to product failure.
