Torque Comparison

As a simple 2 Amp driver, the R208 outperforms all of its competitors in its class in maximizing the torque output of a step motor. In the test below you can see that it even outperforms the IMS IM483, a driver that costs over twice as much. Using a standard 1.8° step motor at 8x microstepping, you can see how the R208 outperforms the competition on the torque/speed curve below. The R208 gets over 10% more torque out of the motor at the various speeds compared to the lowest performer.

Temperature Comparison

The R208 directly competes with the IMS IB462. They are both 2 Amp peak drivers. Both feature full and half step, while the R208 is also capable of 4x and 8x microstepping. Using a standard 1.8° Step motor, 24 VDC, 2 Amps/phase, half-stepping, and 20 revolutions per second, you can see that the R208 runs much cooler than the IB462. After running both for 120 minutes the R208 is at 129° F (53.8° C), while the IB462 is at 138° F (58.8° C). If overall system temperature is important in your application, the R208 has a clear advantage running 9° F (5° C) cooler.

PIN OUTS

Connectors

A DB-9 male connector provides power and control connections. Mating connector provided.

• INPUT VOLTAGE:+12 to 24 VDC (Including Unregulated Power Supplies)
• DRIVE CURRENT(PER PHASE): 0.25 to 1.4 Amps RMS, 2 Amps Peak
• ISOLATED INPUTS: Step Clock, Direction, Enable & Disable
• STEP FREQUENCY (MAX): 500 kHz
• STEPS PER REVOLUTION (1.8º MOTOR): 200, 400, 8000, 16000