Stepper motor making noise but not responding

dear RepRap fellows,

I almost completed my 3d printer. (Kossel K800XL)
I can send a print command to my printer and it will start printing.
But there's only one small problem. My extruder (Motor) is not responding.
I can hear the stepper motor loud and clear when i turn on the power.
I tried to crank up ''and'' reduce the voltage from the stepper motor, but it still won't respond.
My stepper motor is at maximum voltage right now. i tried several things in my configuration.h,
but with no success. But there's more!

When i allow Cold extrusion ''M302 S1'' the motor will stop responding somehow.
The X Y and Z stepper motor will freeze but only for a short amount of time
The command line is behaving kinda strange to this,

Here's an example:
---------------------------------------------------------------------------------------------------------------------------------
Cold extrusion allowed
Selectextruder0
X:0.00 Y:0.00 Z:345.00 E:0.0000
Cold extrusion allowed
Selectextruder0
X:0.00 Y:0.00 Z:345.00 E:-400.0000
Selectextruder0
X:0.00 Y:0.00 Z:345.00 E:-430.0000
Selectextruder0
X:0.00 Y:0.00 Z:345.00 E:-1580.0000
Selectextruder0
X:0.00 Y:0.00 Z:345.00 E:-1630.0000
e.t.c.....
_______________________________________________________________________________
Again: (The stepper motor is not moving)

After a long time of waiting, the extruder motor will start again making noise.
And if i send an command to the extruder motor, the whole cycle will start over again.

just to make the story a bit more short.

''The extruder motor will shutdown when i send an command and won't move during a print''

I would be more than glad if you guys could help me fixing this problem.

Thanks for watching

(Here is my configurarion.h)
_______________________________________________________________________________

#define NUM_EXTRUDER 1
#define MOTHERBOARD 702
#include "pins.h"

// ################## EDIT THESE SETTINGS MANUALLY ################
// ################ END MANUAL SETTINGS ##########################

#undef FAN_BOARD_PIN
#define FAN_BOARD_PIN -1
#define BOARD_FAN_SPEED 255
#define FAN_THERMO_PIN -1
#define FAN_THERMO_MIN_PWM 128
#define FAN_THERMO_MAX_PWM 255
#define FAN_THERMO_MIN_TEMP 45
#define FAN_THERMO_MAX_TEMP 60
#define FAN_THERMO_THERMISTOR_PIN -1
#define FAN_THERMO_THERMISTOR_TYPE 1

//#define EXTERNALSERIAL use Arduino serial library instead of build in. Requires more ram, has only 63 byte input buffer.
// Uncomment the following line if you are using Arduino compatible firmware made for Arduino version earlier then 1.0
// If it is incompatible you will get compiler errors about write functions not being compatible!
//#define COMPAT_PRE1
#define BLUETOOTH_SERIAL -1
#define BLUETOOTH_BAUD 115200
#define MIXING_EXTRUDER 0

#define DRIVE_SYSTEM 3
#define XAXIS_STEPS_PER_MM 200
#define YAXIS_STEPS_PER_MM 200
#define ZAXIS_STEPS_PER_MM 200
#define EXTRUDER_FAN_COOL_TEMP 50
#define PDM_FOR_EXTRUDER 0
#define PDM_FOR_COOLER 0
#define DECOUPLING_TEST_MAX_HOLD_VARIANCE 20
#define DECOUPLING_TEST_MIN_TEMP_RISE 1
#define KILL_IF_SENSOR_DEFECT 0
#define RETRACT_ON_PAUSE 2
#define PAUSE_START_COMMANDS ""
#define PAUSE_END_COMMANDS ""
#define SHARED_EXTRUDER_HEATER 1
#define EXT0_X_OFFSET 0
#define EXT0_Y_OFFSET 0
#define EXT0_Z_OFFSET 0
#define EXT0_STEPS_PER_MM 200
#define EXT0_TEMPSENSOR_TYPE 2
#define EXT0_TEMPSENSOR_PIN TEMP_0_PIN
#define EXT0_HEATER_PIN HEATER_0_PIN
#define EXT0_STEP_PIN ORIG_E0_STEP_PIN
#define EXT0_DIR_PIN ORIG_E0_DIR_PIN
#define EXT0_INVERSE 1
#define EXT0_ENABLE_PIN ORIG_E0_ENABLE_PIN
#define EXT0_ENABLE_ON 1
#define EXT0_MIRROR_STEPPER 0
#define EXT0_STEP2_PIN ORIG_E0_STEP_PIN
#define EXT0_DIR2_PIN ORIG_E0_DIR_PIN
#define EXT0_INVERSE2 0
#define EXT0_ENABLE2_PIN ORIG_E0_ENABLE_PIN
#define EXT0_MAX_FEEDRATE 100
#define EXT0_MAX_START_FEEDRATE 45
#define EXT0_MAX_ACCELERATION 6500
#define EXT0_HEAT_MANAGER 3
#define EXT0_WATCHPERIOD 1
#define EXT0_PID_INTEGRAL_DRIVE_MAX 180
#define EXT0_PID_INTEGRAL_DRIVE_MIN 80
#define EXT0_PID_PGAIN_OR_DEAD_TIME 7
#define EXT0_PID_I 2
#define EXT0_PID_D 40
#define EXT0_PID_MAX 255
#define EXT0_ADVANCE_K 0
#define EXT0_ADVANCE_L 0
#define EXT0_ADVANCE_BACKLASH_STEPS 0
#define EXT0_WAIT_RETRACT_TEMP 150
#define EXT0_WAIT_RETRACT_UNITS 0
#define EXT0_SELECT_COMMANDS ""
#define EXT0_DESELECT_COMMANDS ""
#define EXT0_EXTRUDER_COOLER_PIN -1
#define EXT0_EXTRUDER_COOLER_SPEED 255
#define EXT0_DECOUPLE_TEST_PERIOD 12000
#define EXT0_JAM_PIN -1
#define EXT0_JAM_PULLUP 0
#define EXT1_X_OFFSET 0
#define EXT1_Y_OFFSET 0
#define EXT1_Z_OFFSET 0
#define EXT1_STEPS_PER_MM 200
#define EXT1_TEMPSENSOR_TYPE 1
#define EXT1_TEMPSENSOR_PIN TEMP_2_PIN
#define EXT1_HEATER_PIN HEATER_2_PIN
#define EXT1_STEP_PIN ORIG_E1_STEP_PIN
#define EXT1_DIR_PIN ORIG_E1_DIR_PIN
#define EXT1_INVERSE 0
#define EXT1_ENABLE_PIN ORIG_E1_ENABLE_PIN
#define EXT1_ENABLE_ON 0
#define EXT1_MIRROR_STEPPER 0
#define EXT1_STEP2_PIN ORIG_E1_STEP_PIN
#define EXT1_DIR2_PIN ORIG_E1_DIR_PIN
#define EXT1_INVERSE2 0
#define EXT1_ENABLE2_PIN ORIG_E1_ENABLE_PIN
#define EXT1_MAX_FEEDRATE 100
#define EXT1_MAX_START_FEEDRATE 45
#define EXT1_MAX_ACCELERATION 65000
#define EXT1_HEAT_MANAGER 3
#define EXT1_WATCHPERIOD 1
#define EXT1_PID_INTEGRAL_DRIVE_MAX 180
#define EXT1_PID_INTEGRAL_DRIVE_MIN 80
#define EXT1_PID_PGAIN_OR_DEAD_TIME 7
#define EXT1_PID_I 2
#define EXT1_PID_D 40
#define EXT1_PID_MAX 255
#define EXT1_ADVANCE_K 0
#define EXT1_ADVANCE_L 0
#define EXT1_ADVANCE_BACKLASH_STEPS 0
#define EXT1_WAIT_RETRACT_TEMP 150
#define EXT1_WAIT_RETRACT_UNITS 0
#define EXT1_SELECT_COMMANDS ""
#define EXT1_DESELECT_COMMANDS ""
#define EXT1_EXTRUDER_COOLER_PIN -1
#define EXT1_EXTRUDER_COOLER_SPEED 255
#define EXT1_DECOUPLE_TEST_PERIOD 12000
#define EXT1_JAM_PIN -1
#define EXT1_JAM_PULLUP 0
#define EXT2_X_OFFSET 0
#define EXT2_Y_OFFSET 0
#define EXT2_Z_OFFSET 0
#define EXT2_STEPS_PER_MM 370
#define EXT2_TEMPSENSOR_TYPE 1
#define EXT2_TEMPSENSOR_PIN TEMP_3_PIN
#define EXT2_HEATER_PIN HEATER_3_PIN
#define EXT2_STEP_PIN ORIG_E2_STEP_PIN
#define EXT2_DIR_PIN ORIG_E2_DIR_PIN
#define EXT2_INVERSE 0
#define EXT2_ENABLE_PIN ORIG_E2_ENABLE_PIN
#define EXT2_ENABLE_ON 0
#define EXT2_MIRROR_STEPPER 0
#define EXT2_STEP2_PIN ORIG_E2_STEP_PIN
#define EXT2_DIR2_PIN ORIG_E2_DIR_PIN
#define EXT2_INVERSE2 0
#define EXT2_ENABLE2_PIN ORIG_E2_ENABLE_PIN
#define EXT2_MAX_FEEDRATE 50
#define EXT2_MAX_START_FEEDRATE 20
#define EXT2_MAX_ACCELERATION 5000
#define EXT2_HEAT_MANAGER 3
#define EXT2_WATCHPERIOD 1
#define EXT2_PID_INTEGRAL_DRIVE_MAX 230
#define EXT2_PID_INTEGRAL_DRIVE_MIN 40
#define EXT2_PID_PGAIN_OR_DEAD_TIME 7
#define EXT2_PID_I 2
#define EXT2_PID_D 40
#define EXT2_PID_MAX 255
#define EXT2_ADVANCE_K 0
#define EXT2_ADVANCE_L 0
#define EXT2_ADVANCE_BACKLASH_STEPS 0
#define EXT2_WAIT_RETRACT_TEMP 150
#define EXT2_WAIT_RETRACT_UNITS 0
#define EXT2_SELECT_COMMANDS ""
#define EXT2_DESELECT_COMMANDS ""
#define EXT2_EXTRUDER_COOLER_PIN -1
#define EXT2_EXTRUDER_COOLER_SPEED 255
#define EXT2_DECOUPLE_TEST_PERIOD 12000
#define EXT2_JAM_PIN -1
#define EXT2_JAM_PULLUP 0

#define FEATURE_RETRACTION 1
#define AUTORETRACT_ENABLED 0
#define RETRACTION_LENGTH 3
#define RETRACTION_LONG_LENGTH 13
#define RETRACTION_SPEED 40
#define RETRACTION_Z_LIFT 0
#define RETRACTION_UNDO_EXTRA_LENGTH 0
#define RETRACTION_UNDO_EXTRA_LONG_LENGTH 0
#define RETRACTION_UNDO_SPEED 20
#define FILAMENTCHANGE_X_POS 0
#define FILAMENTCHANGE_Y_POS 0
#define FILAMENTCHANGE_Z_ADD 2
#define FILAMENTCHANGE_REHOME 1
#define FILAMENTCHANGE_SHORTRETRACT 5
#define FILAMENTCHANGE_LONGRETRACT 50
#define JAM_STEPS 220
#define JAM_SLOWDOWN_STEPS 320
#define JAM_SLOWDOWN_TO 70
#define JAM_ERROR_STEPS 500
#define JAM_MIN_STEPS 10
#define JAM_ACTION 1

#define RETRACT_DURING_HEATUP true
#define PID_CONTROL_RANGE 20
#define SKIP_M109_IF_WITHIN 2
#define SCALE_PID_TO_MAX 0
#define TEMP_HYSTERESIS 0
#define EXTRUDE_MAXLENGTH 160
#define NUM_TEMPS_USERTHERMISTOR0 0
#define USER_THERMISTORTABLE0 {}
#define NUM_TEMPS_USERTHERMISTOR1 0
#define USER_THERMISTORTABLE1 {}
#define NUM_TEMPS_USERTHERMISTOR2 0
#define USER_THERMISTORTABLE2 {}
#define GENERIC_THERM_VREF 5
#define GENERIC_THERM_NUM_ENTRIES 33
#define HEATER_PWM_SPEED 0

Why did you define more than one pin for dir and step for EXT0? And what about the inverse setting?

#define EXT0_STEP_PIN ORIG_E0_STEP_PIN
#define EXT0_DIR_PIN ORIG_E0_DIR_PIN
#define EXT0_INVERSE 1
#define EXT0_ENABLE_PIN ORIG_E0_ENABLE_PIN

#define EXT0_STEP2_PIN ORIG_E0_STEP_PIN
#define EXT0_DIR2_PIN ORIG_E0_DIR_PIN
#define EXT0_INVERSE2 0

thanks for replying

I just downloaded the firmware from the Repetier website.
The most things are in the default settings
I removed the commands that you listed and this is what happend.

The motor didin't shutdown anymore and the X Y and Z motor won't freeze anymore so thats really good.
the extruder motor still won't respond ''but'' repetier host don't give negative values anymore in the registry.

Is it some how possible that the Stepper motor is plugged in backwards.
Sound to me like My first 3D Printer when the extruder wiring was wrong.

Or 2nd suggestion maybe it is running in reverse direction when you extrude it retracts, this happen to me and is more common.

Thank you guys,

The extruder motor is working fine right now.
I removed the step2, dir2, enable2 and inverse2.
The motor didin't move first but i forgot to use the M302 S1 command. I think that the problem indicates to the inverse settings. I had one
"inverse 0" but also a "inverse2 1." So i think that the motor turned off because it created a short circuit.