User Manual

TMCM-1070 Hardware Manual • Hardware Version V1.00 | Document Revision V1.10 • 2017-Oct-27

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TTL UART high level voltage V

T T L

3.25 5 V

TTL UART output voltage V

T T L_OU T

5 V

Table 10: Operational ratings of optically isolated inputs and TTL UART interface

6.4 Functional Characteristics

Parameter Description / Value

Control 4-wire interface with Step, Direction, Enable, and Chopper Mode Switch

Step Pulse Width

The step pulse width should be between 2

s and 4

s for maximum frequency.

With a larger step pulse width, for example 50% duty cycle coming from a

frequency generator, the maximum input frequency will be lower at ca. 9kHz.

Communication

2-wire TTL UART interface for conﬁguration, 9600-115200 bps (default 9600 bps)

Driving Mode

spreadCycle and stealthChop chopper modes (selectable with CHOP input),

adaptive automatic current reduction using stallGuard2 and coolStep

Stepping Resolution

Full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256 step, default is 1/16 with internal

interpolation to 1/256

Table 11: Functional Characteristics

6.5 Other Requirements

Speciﬁcations Description or Value

Cooling Free air

Working environment Avoid dust, water, oil mist and corrosive gases, no condensation, no frosting

Working temperature -30° C to +40° C

Table 12: Other Requirements and Characteristics

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