StepperOnline DM556T, User Manual

DM556T Digital Stepper Drive User Manual                                                             

12 

Problem Symptoms and Possible Causes

Symptoms 

Possible Problems 

Motor is not rotating 

No power 

Microstep resolution setting is wrong 

DIP switch current setting is wrong   

Fault condition exists 

The drive is disabled 

Motor rotates in the wrong direction   

Motor phases may be connected in reverse 

The drive in fault 

DIP switch current setting is wrong 

Something wrong with motor coil 

Erratic motor motion 

Control signal is too weak 

Control signal is interfered 

Wrong motor connection 

Something wrong with motor coil 

Current setting is too small, losing steps 

Motor stalls during acceleration 

Current setting is too small 

Motor is undersized for the application   

Acceleration is set too high 

Power supply voltage too low 

Excessive motor and drive heating 

Inadequate heat sinking / cooling 

Automatic current reduction function not being utilized 

Current is set too high 

13. Warranty

Twelve Month Warranty   

OMC  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,  STEPPERONLINE  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,  please  contact  your  seller  to  obtain  a  returned  material  authorization  number  (RMA) 
before returning product for service. 

Shipping Failed Products         

If  your  product  fail  during  the  warranty  period,  please  contact  your  seller  for  how  and  where  to  ship  the  failed 
product 

for 

warranty 

or 

repair 

services 

first, 

you 

can 

also 

e-mail 

customer 

service 

at 

customer@omc-stepperonline.com  to  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.