PM752 Microstepping Driver Manual V1.0
Tel: +44(0)1202 237770 13
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
PM752 Microstepping Driver Manual V1.0
Tel: +44(0)1202 237770 14
APPENDIX
Twelve Month Limited Warranty
Zapp Automations 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,
we
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 before returning product for service.
Customer shall prepay shipping charges for products returned to Zapp Automation Ltd for warranty
service and Zapp Automation Ltd shall pay for return of products to customer.
Warranty Limitations
Zapp Automation Ltd
makes no other warranty, either expressed or implied, with respect to the
product.
Zapp Automation Ltd
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.
