The relationship between the output current and the resistor value is as follows: RMS OUTPUT CURRENT (Amps) = (.707)(0.002)(Resistor in Ohms) RMS Current Resistor Value RMS Current Resistor Value 1.0 698 2.5 1740 1.2 845 2.6 1820 1.4 988 2.7 1890 1.6 1110 2.9 2030 1.7 1180 3.0 2100 1.9 1330 3.2 2230 2.0 1400 3.3 2320 2.2 1540 3.4 2370 2.3 1600 3.8 2670 2.4 1670 4.0 2870 TABLE 3: RESISTOR VALUES WITH RESPECT TO OUTPUT CURRENT Closest 1% value selected WARNING! A current adjustment resistor is alw

2000 Steps/Revolution . On-Board Programmable Simple Indexer with 2 motion profiles . Pulses From 1Hz to 50kHz . Directional Soft and Hard Limit Switch Inputs . Complete Output . Busy Output . Motor On/Off Input and Automatic Current Reduction . Short Circuit Protection Introduction The MBC10SI1 is an low cost single axis step motor driver integrated with a programmable simple indexer. The MBC10SI1 microstep driver/pulse generator has an output current capability of 1.5A minimum to 10.0A maximum