The stand alone SM02 Unipolar stepper drive has a footprint of only 55mm x 40mm and can to be panel mounted. It can drive a wide range of unipolar stepper motors, with 6 or 8 leads, at currents up to 1 Amps per phase and supply voltages from 9-24 Volts DC. The drive board and motor share the same power supply. Connections are made by PCB mounted terminal blocks.

The board is programmed to drive at speeds from 16 to 500pps controlled by an external potentiometer. To assist customers we can also supply the SM02 with a fixed output speed or with other speed ranges. A standard 0.1” header provides direction control, full step (1 or 2 phase) or half step modes via jumpers or external control.

For the customer that needs a simple timing/control device we offer this widest range of Cam Timers. Up to eight stations with the choice of either synchronous or intrinsically safe pneumatic motors, both drives have extensive gearbox ratio options. This rugged system gives huge flexibility to the OEM designer.

 

Data sheet

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SM02v2 specification
Motor type: Four phase uni-polar
Board supply voltage: 9V to 24Vdc
Motor supply voltage: 9V to 24Vdc
Motor phase current: 1A max
Motor speed: 16 - 500 pps (other ranges are available)
Board connections: 8 way terminal block and one 10 way IDC header
Board size: 55mm x 40mm x 14mm
Mounting holes: Diameter 3mm
Operating temperature range: 0º to 50º

 

Potentiometer Use
The value of potentiometer used will vary the speed range available. The potentiometers below show the effect of potentiometer value to speed range. Tolerances will apply:

220KΩ
100KΩ
50KΩ
10KΩ
5KΩ
1KΩ

16-504pps
16-480pps
16-444pps
16-270pps
16-186pps
16-62pps

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