SVST2_4_7I47 you need a 7I43 bitfile that has a name that ends in 7I47, other bitfiles will have the wrong pinout you need to choose the appropriate bitfile in your .hal or .ini file New Stepper driver wires: Blue: Common Yellow: Step Red: Direction Driver pinout 7i47 7i43 Function Plug IO P2 1 ----- IO00 Step 0 2 ----- 3 ----- GND 4 ----- IO01 Dir 0 5 ----- 6 ----- GND 7 ----- IO02 Step 1 8 ----- 9 ----- GND 10 ----- IO03 Dir 1 11 ----- 12 ----- GND 13 ----- IO16 Step 2 14 ----- 15 ----- GND 16 ----- IO17 Dir 2 17 ----- 18 ----- GND 19 ----- IO18 Step 3 20 ----- 21 ----- GND 22 ----- IO19 Dir 3 23 ----- 24 ----- GND Plug P3 1 ----- IO5 x-sel 2 ----- 3 ----- GND 4 ----- IO7 Y-sel 5 ----- 6 ----- +5v 7 ----- IO9 Z-sel 8 ----- 9 ----- IO11 A-sel 10 ----- 11 ----- GND 12 ----- IO13 Spindle Button 13 ----- 14 ----- +5v 15 ----- IO15 Estop 16 ----- 17 ----- +5v 18 ----- GND 19 ----- IO 20 ----- 21 ----- GND 22 ----- IO 23 ----- 24 ----- GND Plug P4 1 ----- IO MPG-A 2 ----- 3 ----- GND 4 ----- IO MPG-B 5 ----- 6 ----- +5v 7 ----- IO NC (Enc0 Index) 8 ----- 9 ----- IO10 Enc1 A 10 ----- 11 ----- GND 12 ----- IO12 Enc1 B 13 ----- 14 ----- +5v 15 ----- IO Enc1 Index 16 ----- 17 ----- +5v 18 ----- GND 19 ----- IO Spindle on out 20 ----- 21 ----- GND 22 ----- IO Coolant out 23 ----- 24 ----- GND ***************************************************************************** PENDANT WIRING (P3-P4) IO Pin DB25 Color on 7I47 on 7i43 Color in Function PIN Pendant PIN Coltrol 1 - Black NC 2 - Black/White NC 3 - Brown IO35 Black PAUSE/RESUME 4 - Brown/White P3-12 Brown SPINDLE 5 - Red P3-15 Red ESTOP 6 - Red/White IO36 Orange res .01 7 - Red/Black IO37 Yellow res .001 res .0001 NC (default) 8 - Orange P3-9 Green A Axis 9 - Orange/White P3-7 Blue Z Axis 10 - Orange/Black P3-4 Purple Y Axis 11 - Pink P3-1 White X Axis 12 - Pink/Black P4-4 Black MPG B 13 - Yellow P4-1 Brown MPG A 14 - Yellow/Black P4-6 | Red +5v mpg 15 - Green P4-14 | Black +5v x y z axis select switch 16 - Green/White P4-17 | Black +5v resolution switch 17 - Green/Black Orange 18 - Lt Green Yellow 19 - Blue Green 20 - Blue/White Blue 21 - Purple Purple 22 - Purple/White NC 23 - Grey NC 24 - Grey/Black NC 25 - White P4-3 White GND mpg LIMIT SWITCHES & SPINDLE MOTOR (P3 on 7I43) 50 ---------- Red GND 49 ---------- Purple +5 SPINDLE 47 -- IO47 -- Brown X+ 45 -- IO46 -- Black X- 43 -- IO45 -- WHite Y+ 41 -- IO44 -- Blue Y- 39 -- IO43 -- Green Z+ 37 -- IO42 -- NC Z- 35 -- IO41 -- NC A+ 33 -- IO40 -- NC A- 31 -- IO39 -- Yellow SPINDLE ON 29 -- IO38 -- RED (Touch Probe connection) 27 -- IO37 -- Yellow mpg-scale-Sel0 25 -- IO36 -- Orange mpg-scale-Sel1 23 -- IO35 -- Black Pause/Resume 21 -- IO34 -- Green Program Run 19 -- IO33 -- NC 17 -- IO32 -- NC 15 -- IO31 -- NC 13 -- IO30 -- NC 11 -- IO29 -- NC 09 -- IO28 -- NC 07 -- IO27 -- NC 05 -- IO26 -- NC 03 -- IO25 -- NC 01 -- IO24 -- NC Limit Switch Plug - GND ->|--|--|--|--|--|--|--|--| |--|--|--|Z+|Y-|Y+|X-|X+| Spindle Motor Plug -- Yellow-> |Xx|--|--|--|--| |--|--|--|--|Xx|<-Purple ***************************************************************************** Original D25 Connector 1 - NC 1 - Black 2 - NC 2 - Black/White 3 - NC 3 - Brown 4 - NC 4 - Brown/White 5 - input5 5 - Red 6 - input6 6 - Red/White 7 - input7 7 - Red/Black 8 - input8 8 - Orange 9 - x direction P2-4 9 - Orange/White P2-4 high during X+ move 10 - A Step P2-19 10 - Orange/Black 11 - Z Step P2-13 11 - Pink P2-13 12 - Y Step P2-7 12 - Pink/Black P2-7 13 - X Step P2-1 13 - Yellow P2-1 14 - ENABLE ALL P2-6 14 - Yellow/Black stays low (GND) 15 - A Park 15 - Green 16 - Z Park 16 - Green/White goes low during z step pulse streams 17 - Y Park 17 - Green/Black goes low during y step pulse streams 18 - X Park 18 - Lt Green goes low during x step pulse streams 19 - A Direction P2-22 19 - Blue 20 - Z Direction P2-16 20 - Blue/White P2-16 low during Z+ move 21 - Y Direction P2-10 21 - Purple P2-10 low during Y+ move 22 - INternal VCC +5v 22 - Purple/White available +5v for external use 23 - OPT VCC (Input) 23 - Grey possibly tie to +5v but not yet 24 - Internal GND P2-3 24 - Grey/Black tie to GND 25 - OPT GND (Input) P2-9 25 - White tie to GND