RMS Technologies R325P DRIVER - Manual (Page 8)

CAUTION: Connecting Motor phases (A, A Bar, B, B Bar) to the incorrect location
while the R325P is powered will cause the board to burn. Be sure to insert motor
phases into Pins 6 through 9, in the order of A, A Bar, B, and B Bar. It is
recommended that power is connected last, so that all connections can be checked
before power up.
6. CONNECTION SPECIFICATIONS
When using the Driver Only portion of the R325P, use the dip switches for step resolution and
current settings.
Using the R325P as a Driver Unit Only
If using the R325P as a Driver only, be sure to connect the power supply last.
Pin 1: Connect Pin 1 to Pin 4 to use the internal +5VDC. By using the internal +5VDC the I/O’s
will no longer be optically isolated. If optical isolation is still desired, use a separate +5VDC
supply and connect the POSITIVE end of the supply to Pin 1. The NEGATIVE end will connect
with the NEGATIVE end of your pulse generator.
Pin 2: Use a pulse generator or function generator to receive pulses into the R325P. Connect
the POSTIVE end of the pulse generator to Pin 2. The NEGATIVE end will be connected to the
NEGATIVE end of the +5VDC supply if using a separate power source. If using the internal
+5VDC supply, connect the NEGATIVE end of the pulse generator to Power GROUND.
Pin 3: To switch the direction of motor rotation, connect Pin 3 with Pin 11, Power Ground. An
open or closed connection to Power Ground will change the direction.
Pin 4: This is the internal +5VDC. Use this for testing purposes or if optical isolation of the inputs
is not desired. It can output a max of 50 mAmps.
Pin 5: To enable the drive leave this Pin open, disable the drive connect Pin 5 with Pin 11 (Power
Ground). An open or closed connection to Power Ground will enable and disable the drive,
respectively. A closed connection will remove all power to the output motor leads (Pins 6
through 9).
Pin 6: Phase A Motor Connection
Pin 7: Phase A Motor Connection
Pin 8: Phase B Motor Connection
Pin 9: Phase B Motor Connection
CAUTION: Connecting Motor phases
(A, A Bar, B, B Bar) to the incorrect
location while the R325P is powered
will cause the board to burn. Be sure
to insert motor phases into Pins 6 through 9, in
the order of A, A Bar, B, and B Bar. It is
recommended that power is connected last, so
that all connections can be checked before
power up.
Pin 10: The Full Step output is not available for the basic R325P. This feature is used on the
R325PE.
Pin 11: Connect the NEGATIVE of the Power Supply to this terminal.
Pin 12: Connect the POSITIVE of the Power Supply to this terminal. (+12 to 48VDC)
R325P User Manual Page 8 of 20 5/29/2013 Version 1.01