TMCM-1321 – MEV Elektronik GmbH
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Stepper Motor Closed-Loop Controller [&] Driver 0.7A/24V with RS485, 28×28

The TMCM-1321 is an easy to use, single axis controller/driver for 2-phase bipolar stepper motors with separate home and stop switch inputs. The built-in magnetic encoder can be used when a suitable magnet is attached to the motor axis, enabling also closed-loop operation. As an alternative, an optical encoder can be connected via digital ABN inputs. Different ramp shapes can be selected. Dynamic current control, and quiet, smooth and efficient operation are combined with StallGuard™ and CoolStep™ features.

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
Microstep Resolution 1…256
Motion Controller X
Acceleration Ramp linear, S-shaped
ABN Encoder Interface X
sensOstep™ Encoder resolution 16384
End- [&] Ref.-Switch IN 3x 24V
General Purpose IN (digital) 3x optional
General Purpose OUT (digital) 1x (open drain)
General Purpose IN/OUT (digital):
General Purpose IN (analog)
stallGuard2™ X
coolStep™ X
spreadCycle™ Chopper X
microPlyer™ (interpolation)
stealthChop™ (no noise)
Board Size 28 x 28mm
Order Code TMCM-1321
Firmware Order Option
Related Cable Loom TMCM-1321-CABLE


TMCM-1321 hardware manual (pdf)
TMCM-1321 TMCL firmware manual (pdf)

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