RMS Technologies R325P DRIVER - Manual (Page 7)

5. PIN ASSIGNMENTS
Mating Connectors
P1 Amp 640441-3
P3 Phoenix Contact 1803675
P1 – RS485 bus Interface
P1 Configuration
Pin No Function
1 A Input (+ve)
2 Ground
3 B Input (-ve)
Table 5.1
P1 Connector – Pin 1 Location
Image 5.1
P3 – Motor/Controls/Power Interface
A 12-pin pluggable terminal strip connector P3 provides power and the step and direction
control functions for the module. All of these signals are optically isolated. Open-collector drives
are required to provide pulses for Step, levels for Direction, and Disable. The common +ve
supply ranges from 5 VDC to 30 VDC with respect to the signal input; however if the supply is
greater than 5 VDC then a resistor must be inserted in series with each signal line to limit the
current to 10 mA.
P3 Configuration
Pin No Function
1 Common +ve External
2 Step (in)
3 Direction (in)
4 +5 VDC Internal
5 Disable (in)
6 Motor A+ (out)
7 Motor A- (out)
8 Motor B+ (out)
9 Motor B- (out)
10 Full Step Output
11 Power Ground
12 Power Positive
Table 5.2
P3 Connector – Pin 1 Location
Image 5.2
R325P User Manual Page 7 of 20 5/29/2013 Version 1.01