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EXAMPLE: A 6 lead motor in half coil configuration has a

specified phase current of 3.0A

3.0A x 1.4 = 4.2 Amps Peak

EXAMPLE: A 6 lead motor in full coil configuration

with a specified phase current of 3.0A

3.0A per phase = 3.0 Amps Peak

EXAMPLE: A 4 lead motor has a specified phase current

of 2.0A

2.0A x 1.4 = 2.8 Amps Peak

Determining the Output Current

Stepper motors can be configured as 4, 6 or 8 leads. Each configuration

requires different currents. Shown below are the different lead configurations

and the procedures to determine the peak per phase output current setting that

would be used with different motor/lead configurations.

4 Lead Motors

Multiply the specified phase current by 1.4 to determine the peak output

current.

6 Lead Motors

1) When configuring a 6 lead motor in a half coil configuration (i.e. connected

from one end of the coil to the center tap (high speed configuration))

multiply the specified per phase (or unipolar) current rating by 1.4 to

determine the peak output current.

2) When configuring the motor so the full coil is used (i.e. connected from

end-to-end with the center tap floating (higher torque configuration)) use

the per phase (or unipolar) current rating as the peak output current.

NOTE! The PEAK current will be used to determine the

current adjust resistor value, NOT the RMS current! This

represents the maximum output current that should be set for

your IM483 driver!

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Projecta IM2000 Istruzioni per gli Interventi Pagina 37