TMCM-1021 – MEV Elektronik GmbH
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Stepper Motor Controller & Driver, 0.7A/24V, RS485/S&D, 28x28mm

The TMCM-1021 is an intelligent stepper motor controller/driver module featuring the new outstanding CoolStep™ technology for sensorless load dependent current control. This allows energy efficient motor operation. With the advanced stallGuard2™ feature the load of the motor can be detected with high resolution. The module is designed to be mounted directly on a 28mm flange QMot stepper motor. It converts the motor into a compact mechatronic device with serial bus oriented or standalone control.

The PC based software development environment TMCL-IDE for the Trinamic Motion Control Language (TMCL™) can be downloaded free of charge from the TRINAMIC website. Predefined high level TMCL commands guarantee a rapid development of motion control applications. Communication traffic is kept very low since all time critical operations, e.g. ramp calculation are performed onboard.

Technical Data

Technical Data:

Motor Type Stepper, 2-phase, bipolar
Motor mountable 28 x 28mm / NEMA 11
Supply Voltage 9…28V
Max. phase current (RMS) 0,7A
Interfaces RS485
S/D Driver Interface (GP IN)
Microstep Resolution 1…256
Motion Controller X
Acceleration Ramp linear
ABN Encoder Interface X
sensOstep™ Encoder resolution 1024
End- [&] Ref.-Switch IN 3x 24V)
General Purpose IN (digital) 2x 5/24V
General Purpose OUT (digital)
General Purpose IN/OUT (digital): 2x OD, 100mA
General Purpose IN (analog) 1x 0…6,6V, 12bit
stallGuard2™ X
coolStep™ X
spreadCycle™ Chopper X
microPlyer™ (interpolation) 16 to 256
stealthChop™ (no noise)
Board Size 28 x 28mm
Order Code TMCM-1021
Firmware Order Option
Related Cable Loom TMCM-1021-CABLE


TMCM-1021 hardware manual (pdf)
TMCM-1021 TMCL firmware manual (pdf)

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