User Manual

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

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5.4 Thermal Behavior

The default conﬁguration parameters of the TMCM-1070 are set to the speciﬁed maximum current of 1.2A

rms / 1.7A peak, which is the maximum motor phase current speciﬁed for the stepper motor options given

in Table ??.

Typically, at this nominal current setting the stepper motor and the driver electronics will get hot. Continu-

ous operation at maximum current is not guaranteed without cooling the motor since the stepper driver

will switch oﬀ due to its internal over-temperature protection until temperature falls below the threshold.

Note

Operation with Maximum Current Setting

For table-top testing and applica-

tion bring-up the current should be reduced or the coolStep feature should be

conﬁgured to keep heating on a reasonable level. Especially, when there is no

other cooling option for the motor.

For proper and continuous operation at maximum current, the motor ﬂange

must be mounted to the applications mechanical interface with good contact.

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