User Manual
R356 Controller & Driver Page 6 Version 1.06
RMS Technologies 2/17/2010
Default Settings
Function (command) Description
Running Current (m) 25% of 3.0 Amps
Holding Current (h) 10% of the run current
Step Resolution (j) 256x
Top Velocity (V) 305175 pps (microsteps/sec)
Acceleration (L) L=1000, 6103500 μsteps/sec
2
Position 0
Microstep smoothness (o) 1500
Outputs (J) Both are turned off, J0, inputs 1 & 2
Baud Rate 9600 bps
Table 1: Default Settings
2. ELECTRICAL SPECIFICATIONS
Supply Voltage: +12 to +40 VDC
Peak Current: 0.3 to 3.0 Amps
Digital I/O Specifications
Number of I/O 4
Number of Inputs 2
Input Voltage +0 VDC to +5 VDC
(0 to 24V tolerant, but 5V recommended)
Input Current 700 mA
Pull-up Resistors 20k Ω
Protection Static Protection to the microprocessor
For a 1.8° stepper:
Steps per Revolution: 200, 400, 800, 1600, 3200, 6400, 12800, 25600, 51200
3. OPERATING SPECIFICATIONS
Maximum Step Frequency 2^31 (pps) or 2.147GHz
Operating Temperature Range 0° to 50° C
Storage Temperature Range -20° to 70° C
Maximum surface temperature 70°C
Communication Specifications
Interface Type RS485 (RS232 or USB with a converter card)
Baud Rate 9600*, 19200, or 38400 bps
# Bits per character 8 Data
Parity None
Stop Bit 1
Flow Control None
*default