LPKF ProtoMat 93s Manual
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8.4 Motor connection
The stepping motors are connected per axis via a 15-pole SUB-D plug. If the limit
switch is actuated, any further axis movement in the direction of the limit switch is
immediately blocked. The position of the sockets is described in the section
entitled "LPKF ProtoMat 93s displays and connections". Another 5-pole cable is
used to supply the high-speed spindle with power.
Important: never confuse the stepper motor and the mill/drill head cables!!!
8.5 Mill head connection
The mill/drill head is connected to the control unit with a 15-pole socket. The
socket position is described in the section entitled "LPKF ProtoMat 93s displays
and connections".
Important: never confuse the stepper motor and the mill/drill head cables!!!
8.6 EPROMs
The software for the control unit is in 2 EPROMs. If the EPROMs need to be
replaced (updates), the LPKF ProtoMat 93s has to be partially dismantled, so
follow the procedure described in the section entitled "Fuses" and change the
EPROMs, ensuring that the EPROMs are correctly aligned and positioned.
Use only an IC extractor to remove the EPROMs as otherwise the contacts of the
mounting might be damaged. When inserting new EPROMs support the PCB from
the bottom in order to avoid bending of the board. Take care that the orientation of
the EPROMs is correct.