www.fastech-motions.com - 6
2. Main characteristics
3
Drive Output Signal Monitoring
Ezi-STEP provides loss of step, run/stop, over-current,
over-heat, over-voltage, power and motor connection
alarms that can be monitored by the controller and
visible by a motor-mounted flashing LED indicator.
4
Improvement of High-Speed Driving
Depending on the speed of a stepping motor, Ezi-
STEP automatically increases the supply voltage and
prevents the torque lowering due to the low operating
voltage to the motor caused by back-emf voltage, this
enables high-speed operation. Additionally, the software
damping algorithm minimizes the vibration and prevents
the loss-of-synchronization at high-speed.
Applicable model : Ezi-STEP-MPB-42 Series
Ezi-STEP-MPB-56 Series
Ezi-STEP-MPB-60 Series
Ezi-STEP-HPB-86 Series
1
Microstep and Filtering
The high-performance MCU operates at step resolutions
of 1.8 ° up to maximum 0.0072 ° (1/250 steps) and Ezi-
STEP adjusts PWM control signal in every 25 μsec,
which makes it possible for more precise current control,
resulting in high-precision Microstep operation.
High precision Microstep function and Filtering
2
Software Damping
Vibration suppression and High-speed operation (Patent
pending) Motor vibration is created by magnetic flux
variations of the motor, lower current from the drive
due to back-emf from the motor at high speeds and
lowering of phase voltages from the drive.
Ezi-STEP drive detects these problems and the MCU
adjusts the phase of the current according to the pole
position of the motor, drastically suppressing vibration.
This allows the smooth operation of the motor at high
speeds.
Vibration suppression and high-speed
operation
Software Damping OFF
※ This is real measured speed that using 100,000 [pulse/rev] encoder.
Software Damping ON
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