You could do a forum search to find out what others are using for their BOB’s - the C10 seems to be popular and this can be found here
http://www.cnc4pc.com/Store/osc/index.php?cPath=33&osCsid=2d1fd3d8ffdeb2cc6078c4da7037fc55This is the basics of what I would do ( I don’t offer any warranty on this !!).
Q3HB220M Driver:- Pin 6 switches alternate steps per revolution which is not required. Pin 10 is an index output which is not required at this stage. Pin 12 is a driver ready output which is not required. (This assumes that you will not be using encoders with the motors).
Set the steps per (SK1) to a realistic setting, perhaps position 9 (2000). Set motor run current (runIM) and motor hold current (stopIM) to match your motors.
LPT output pins / BOB pins and Mach setup:-
PIN DESIGNATION MACH ports & pins
Input / Output signals.
1 C0/output
2 D0/output x step step low active
3 D1/output x dir active high / low will determine motor direction.
4 D2/output y step step low active
5 D3/output y dir active high / low will determine motor direction.
6 D4/output z step step low active
7 D5/output z dir active high / low will determine motor direction.
8 D6/output a step
9 D7/output a dir
10 S6/input e-stop
11 S7/input x home/limit
12 S5/input y home/limit
13 S4/input z home/limit
14 C1/output
15 S3/input
16 C2/output
17 C3/output
18 gnd )
19 gnd )
20 gnd )
21 gnd ) GND
22 gnd )
23 gnd )
24 gnd )
25 gnd )
Under motor tuning set the steps per to 2000, acceleration and velocity low (to start with) and the step and direction pulse widths to 2 uS.
Initial test:- Connect up one drive first (X axis) as diagram. At switch on the motor should lock – If the motor rotates, switch off and change DP4 to ON. Switch on again – if the motor does not lock, switch off and connect pin 8 (motor free signal) to GND and pin7 to +5V and try again.
Always switch off before changing any settings or connecting / disconnecting wires. Observe caution and safety when dealing with the 220 Vac and motor connections.
Tweakie.
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