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Rms current and peak current

For the stepper motor drives belonging to the xS10, DS30 and DS5x series the phase current is expressed in Arms, i.e. effective current. Instead, other manufacturers characterize their products indicating the peak current (sometimes also referred to as maximum current- Imax) and this does not allow to get the maximum torque from the motor.

The rms value of a sinusoidal current is equivalent to 1,41 times the peak current (about 40% more) therefore, for example, a drive used in microstepping and calibrated for a phase current amounting to 5Arms is equivalent to a drive by 7,05A of peak.

Additional Tips
Rms current and peak current
For the stepper motor drives belonging to the xS10, DS30 and DS5x series the phase current is expressed in Arms, i.e. effective current. Instead, other manufacturers characterize their products indicating the peak current (sometimes also referred to … »read more
Innovative digital inputs
All the digital inputs present in the stepper motor drives of the xS10, DS30 and DS5x series are optoisolated.

Each optocoupler has an innovative current limiting circuit that allows to supply each input singularly, and independently one from the … »read more

Interrupted phase alarm
The stepper motor drives of the xS10, DS30 and DS5x series implement a special technology able to detect the interrupted phase condition.

This characteristic, hard to find in other drives, is particularly useful when the motor is used in open loop … »read more

Line Driver inputs
All the input digital lines of the stepper motor drives belonging to the xS10, DS30 and DS5x series can be controlled also in differential mode (also known as Line Driver). … »read more
Univocal indication for each anomaly
In the stepper motor drives belonging to the xS10, DS30 and DS5x series has been developped a special technique that allows to provide an univocal indication for each malfunction condition detected by the drive.

If the failure conditions are more … »read more