phytron MCD+, Руководство пользователя

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Manual MCD
+
The moment in the full step mode, M
FS,
as compared to the moment in the half-step mode,
M
HS
is:
⏐
M
FS
⏐
=
⏐
M
HS
⏐ ×
2
This means, when a single phase is energized, the current must be increased by a
2
factor to obtain an identical torque.
Fig. 32: Holding torques without/with torque compensation
Ministep/ Microstep
In Rotary switch mode the power stage MCD increases the step resolution by a factor
2, 4, 5, 8, 10 or 20 of a full step – MINISTEP MODE.
In ServiceBus mode the step resolution can be increased by a factor 2, 4, 5, 8, 10, 16, 20,
32, 64, 128, 256 or 512 of a full step – MICROSTEP MODE.
Various advantages are obtained by the MINISTEP MODE:
•
The torque undulation drops when
the number of ministeps is
increased.
•
Resonance and overshoot
phenomena are greatly reduced; the
motor operation is almost
resonance-free.
•
The motor noise also drops when the
number of ministeps is increased.
Fig. 33: Ministep 1/10 of a full step
MA 2102-A005 GB
46