R208

Model: R208
Manufacturer: Lin Engineering
Description: Stepper, Bipolar 12 ~ 24VDC Supply 2A Load
Features and Benefits:
– Bipolar Step Motor Driver
– Operates from +12 to 24 VDC
– Phase current ranges from 0.35 to 2.0 Amps Peak
– Selectable Step Resolution from Full, Half, 1/4, and 1/8 microsteps
– Optically isolated
– Step, Direction, and Disable/Enable Inputs
– Selectable Current Reduction of 33%
– Low Power Dissipation
– Efficient Current Control
– Thermal Shutdown, Under-voltage Protection
– Power-on Indicator
– Power Disable/Enable Control
– Sinusoidal current waveform Low Cost Driver
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.

Dimension

PIN OUTS

Datasheet

Type: Module
Motor Type: Stepper
Control / Drive Type: Stepper, Bipolar
Mounting Type: Chassis Mount
Number of Motors: 1
Current – Output: 2A
Voltage – Supply: 12 ~ 24VDC
Operating Temperature: -20°C ~ 50°C