User manual

PoStep60 user manual
22
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Figure 14: Speed / Auto run control settings
1. Enable Auto run – when checked driver is in Auto run control mode
2. Invert direction – Inverts direction of stepper movement
3. Requested speed slider – Use the slider to set requested speed. Maximum speed value is limited
by “Max speed”
4. Requested speed – Requested and actual speed value. Due to hardware limitation actual speed
can differ from requested speed.
5. Max speed – Max speed value – this is the value of the speed at power up
7.6 DC motor control
PoStep60 driver can be configured to drive up to two dc motors bi-directionally. Enabling DC motor
control bypass driver internal indexer control used for stepper motor micro-stepping control. All the
driver parameters except idle current apply for DC motor control as well. This enable current limited
DC motor drive using PWM control. The PoStep60 application enables simple PWM control where
PWM and PWM frequency (period) can be set.
Figure 15: DC motor control controls
NOTE!
At power up “Max speed” value applies and not “Requested speed” value.
Requested speed value applies only during active USB connection of PoStep60
driver.
NOTE!
Make sure to confirm the change of driver mode and save mode settings by clicking
“Write values to driver”.
1: Enable DC motor
control
2: Channel A
3: Channel B
4: Set PWMs
5: Frequency dial
6: Frequency
input box
7: Auto update
8: Stop
1: Enable/disable mode
5: Max speed value
applies at power up
2: Invert direction of
3: Requested speed
slider
4: Requested speed
input and actual
speed value