User Manual

TMCM-3314, TMCM-3315 Hardware Manual (V1.00 / 2018-APR-30) 27

10 TMCM-3314 Functional Description

The TMCM-3314 is a highly integrated controller/driver module for 3 stepper motor axes with (optional) closed-

loop operation. The unit may be controlled via several serial interfaces (CAN, RS485 and USB – depending on

firmware). Communication traffic is kept low since all time-critical operations (e.g. ramp calculations) are

performed on board. The nominal supply voltage of the unit is 24V or 48V DC. The module is designed for both,

standalone operation and direct mode. Full remote control of device with feedback is possible. The firmware of

the module can be updated via one of the serial interfaces (depending on module and firmware type).

In Figure 10.1 the main parts of the TMCM-3314 are shown:

- Microcontroller, responsible for overall control - executes the firmware (either TMCL or CANopen incl. the

communication stack)

- 3 motion controller and driver (based on the TMC4361 motion controller and the TMC5160 stepper driver

ICs) with additional higher-power MOSFET stepper motor driver stage. With the integrated motion

controller (TMC4361) calculation of ramps (linear / S-ramp), speed profiles and optional closed-loop

operation with external encoder is done internally in hardware

- interface for an external (e.g. optical) incremental A/B/N encoder (differential RS422 signals) for each axis

(High-resolution encoder required for optional closed-loop operation)

- interface for HOME / REFL / REFR reference switches for each axis

- 4 general purpose analog / digital inputs

- 4 general purpose digital (open-drain) outputs

- Three serial communication interfaces: CAN, RS485 and USB (Micro-USB-connector)

Figure 10.1 Main parts of the TMCM-3314