RMS Technologies R208 DRIVER - Manual (Page 6)

RMS Technologies Page 6 Version 1.22
R208 Microstepping Driver Manual 8/31/2007
2. ELECTRICAL SPECIFICATIONS
Supply Voltage:
+12 to 24 VDC
Peak Current: 0.35 to 2.0 Amps OR 0.25 to 1.4 Amps/Phase
100% duty cycle is OK as long as bottom of unit is 50°C or less
3. OPERATING SPECIFICATIONS
Operating Temperature: -20° to 50° Celsius
Humidity Range: 0 to 95% (non-condensing)
Logic Input Timing
(A) Minimum Command Active Time
Before Step Pulse (Data Set-up Time) 200 nanoseconds
(B) Minimum Command Active Time
After Step Pulse (Data Hold Time) 200 nanoseconds
(C) Minimum Step Pulse Width 20 microseconds
(D) Minimum Step Low Time 20 microseconds
(E) Maximum Power-Down Recovery Time 20 milliseconds
Maximum Step Frequency 30 kHz
Figure 1: Timing Diagram
NOTE: The R208, by default steps on the falling edge into the opto-coupler.