RMS Technologies R325P DRIVER - Manual (Page 14)

9. Troubleshooting
R325P is not functioning correctly
Try putting the R325P into TEST mode by placing a jumper on Pins 3 & 4 of J1 as shown below.
The motor should twitch back and forth slightly if the R325P is functioning properly.
R325P not moving the motor (Step/Dip)
Verify that the 5V is being supplied to Pin 1.
The R325P is causing the motor to vibrate and jitter back and forth
Are the Motor phases switched? Be sure to check that motor wires are connected to Pins 6
through 9, in the order of A, A Bar, B, B Bar. To check which wires belong to one phase, take a
Meter to measure resistance between any two wires. If there is a finite value between two of
them, insert the wires into pins 6 and 7, OR pins 8 and 9. Insert the remaining two wires
accordingly.
Technical Support
By Telephone: 408-919-0200
(Monday-Friday; 8:00 AM - 5:00PM Pacific)
On the Web: www.linengineering.com
Our technical support group is glad to work with you in answering your questions. If you cannot
find the solution to your particular application, or, if for any reason you need additional
technical assistance, please call technical support at 408-919-0200.
R325P User Manual Page 14 of 20 5/29/2013 Version 1.01