User Manual

PoKeys user manual
32
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7.4. Pulse engine
PoKeys57CNC is a hybrid device between a USB PoKeys, Ethernet PoKeys nad PoKeysCNCaddon. As
such, it contains an external pulse generator on-board, which is capable of driving of up to 8 axes
controlled by STEP/DIR signals with maximum pulse frequency of 125 kHz.
The pulse engine is fully configurable in terms of:
- Axis switches configuration: each switch (Limit-, Limit+ and Home/Ref) can be independently
enabled, inverted and positioned either on dedicated pins (pin value of 0) or standard PoKeys
pins that are listed in the device pinout
- Axis motion control configuration: each axis can be configured to optionally use an internal
motion controller in either position or speed mode
- Homing/referencing procedure: motion of the reference position search can be inverted if
home/ref switch is positioned in the positive end of the axis travel. The speed of the homing
procedure can be configured in percents of the maximum axis speed.
- Internal motion controller parameters: such as maximum speed, acceleration and
deceleration can be individually configured for each axis.
- Integrated MPG jog mode: where PoKeys can handle the MPG jogging directly - encoder
index and step multiplier can be individually configured
- Other axis settings: axis enable signals, direction inversion, soft limits, etc.
See the description of the Pulse engine status/control dialog on the next page.
Figure 5: Pulse engine status/control dialog