PoKeys 57E - PoKeys Device Pins

PoKeys Pulse engine v2 documentation
7
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PoKeys device pins in use
Integrated pulse generator - up to 3 axes at 25 kHz step frequency
Pin
Function
38
Direction output – x
39
Direction output – y
40
Direction output – z
46 !
Step output – x
48 !
Step output – y (external 470 Ω pull-up resistor required)
49 !
Step output – z (external 470 Ω pull-up resistor needed)
52
Emergency switch input
53
Safety charge pump 5 kHz output
Inputs for limit, home and probing switches can be freely connected to any PoKeys pin and
configured in software.
Remarks:
- Watch for pin 47! It is not used for step output!
- All switch inputs expect normally closed (NC) switches and must be connected between
specified PoKeys input pin and ground.
- We advise adding an additional 1 kΩ pull-up resistor on pins with an external switch
- Emergency switch must be connected in such way so that it cuts the power supply to the
motors when the switch is activated.
External pull-up resistor wiring for pins 48 and 49