RMS Technologies R208 DRIVER User Manual
Page 8
RMS Technologies
Page 8
Version 1.22
R208 Microstepping Driver Manual
8/31/2007
5. PIN ASSIGNMENTS
A DB-9 female connector cable receives power and provides the control connections for the
R208 Driver. Active signals are optically isolated. An open-collector drive is required to
provide pulses for Step, levels for Direction and Disable/Enable.
PIN #
COLOR
(#26 AWG Lead)
FUNCTION
DESCRIPTION
1
Red
+V
Motor Supply Voltage. +12 to +24 VDC
2
Black
SR1 Input
Step Resolution 1. Pins 2 & 3 are used to
preset the step resolution by selective
contact to ground (Pin 7)
3
Brown
SR2 Input
Step Resolution 2. Pins 2 & 3 are used to
preset the step resolution by selective
contact to ground (Pin 7)
4
Black/White
Enable/Disable
Input
This input is used to enable/disable the
output of the driver
5
Orange
Direction Input
This input is used to change the rotation
direction of the motor
6
Green
Power Ground
The ground or return of power supply
connects here.
7
White
Logic Ground
Used to ground to the logic functions (i.e.
step resolution)
8
Blue
Opto Supply
(Input)
+5 VDC input used to supply power to the
isolated logic inputs**
9
Yellow
Step Clock
Connects to the open-collector drive.
Table 1: Pin Assignments
WARNING!
- Do not apply differential voltage on SR1 and SR2, this will
damage the driver.
**
The Resistors shall be connected in series with each Input: Pin 4 (Disable), Pin 5
(Direction), and Pin 9 (Step) if you are to use an opto supply of more than +5VDC. See
Section 7.
6. CONNECTION SPECIFICATIONS
List of Parts
Connection of the R208 is simple. Here is what you need:
• External Main Power Supply (+12 to +24 VDC)
• +5 VDC Power Supply used as the Opto Supply
• Voltmeter
• Function Generator
• An appropriate Bipolar Step Motor
• Mating Connector Cables that are provided with the R208 Driver
Mating Connectors
A mating DB-9 connector and crimp style connector will be provided.
P/N 090-00019
P/N 090-00018
Color
Function
Red A+
Phase
Blue
A- Phase
Green B+
Phase
Black
B- Phase
Table 2: Pinouts for 090-018