RMS Technologies R208 DRIVER - Manual (Page 10)

RMS Technologies Page 10 Version 1.22
R208 Microstepping Driver Manual 8/31/2007
How to Connect
To connect the R208 according to Figure 4, begin by connecting your step motor to
the R208, for details on how to make that connection refer to Section 8 – Motor
Connections. Next, connect the DB-9 mating connector to the R208.
If using a function generator, take the positive end and connect it to Pin 9 (Step) and
connect the negative end of the generator and connect it to the negative of the +5
VDC power supply. Take the positive end of the +5 VDC power supply and connect it
to Pin 8, the Opto Supply. (Refer to Table 6 for Opto supply resistor values)
Finally, connect the external +12 to +24 VDC power supply. Connect Pin 1 (Power)
to the positive terminal of the power supply. Connect Pin 6 (Power Ground) to the
negative terminal of the power supply.
Remember that the default Current is set to 1.4 Amp. BE SURE NOT TO BURN
YOUR STEP MOTOR WITH THIS DEFAULT CURRENT SETTING. In order to
change this value, please see the section above called “Adjusting the Output
Current”.
Figure 4: Connections Diagram
WARNING! Avoid touching Pin 1 (+12 to 24 VDC) to Pins 2, 3, 4, or 5. These four
pins are connected to optocouplers which can only handle a few milliamps of current.