Inductive probe doesn't recognized as the Z endstop
Posted by fannyLGP2
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Inductive probe doesn't recognized as the Z endstop January 03, 2017 05:31AM |
Registered: 7 years ago Posts: 2 |
Hello all,
I use a Prusa i3 with a Ramps 1.4 and an inductive probe on Z axis. I recently update the old version of Marlin firmware for Marlin 1.1.0 RC8.
I have one problem with this new version: the inductive probe is not recognised as the endstop for z min. Consequently during G28 command, the Z move never stops.
In pin_RAMPS.h, I changed z min pin value for 12 and in configuration.h, I tried to invert logic of endstop. With these modifications, when I realise a M119 command:
1) if I put #define Z_MIN_ENDSTOP_INVERTING false in configuration.h, z min always appears open (even when a metal is detected by the probe)
2) if I put #define Z_MIN_ENDSTOP_INVERTING true in configuration.h, z min always appears triggered (even when no metal is detected by the probe).
Does anyone have an idea to fix this problem, please?
Thank you very much,
Fanny
PS: I put a part of my configuration.h below:
//===========================================================================
//============================== Endstop Settings ===========================
//===========================================================================
// @section homing
// Specify here all the endstop connectors that are connected to any endstop or probe.
// Almost all printers will be using one per axis. Probes will use one or more of the
// extra connectors. Leave undefined any used for non-endstop and non-probe purposes.
#define USE_XMIN_PLUG
#define USE_YMIN_PLUG
#define USE_ZMIN_PLUG
//#define USE_XMAX_PLUG
//#define USE_YMAX_PLUG
//#define USE_ZMAX_PLUG
// coarse Endstop Settings
#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
#if DISABLED (ENDSTOPPULLUPS)
// fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
//#define ENDSTOPPULLUP_XMAX
//#define ENDSTOPPULLUP_YMAX
//#define ENDSTOPPULLUP_ZMAX
//#define ENDSTOPPULLUP_XMIN
//#define ENDSTOPPULLUP_YMIN
//#define ENDSTOPPULLUP_ZMIN
//#define ENDSTOPPULLUP_ZMIN_PROBE
#endif
// Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
#define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define X_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MIN_PROBE_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
// Enable this feature if all enabled endstop pins are interrupt-capable.
// This will remove the need to poll the interrupt pins, saving many CPU cycles.
//#define ENDSTOP_INTERRUPTS_FEATURE
//===========================================================================
//============================= Z Probe Options =============================
//===========================================================================
// @section probes
//
// Probe Type
// Probes are sensors/switches that are activated / deactivated before/after use.
//
// Allen Key Probes, Servo Probes, Z-Sled Probes, FIX_MOUNTED_PROBE, etc.
// You must activate one of these to use Auto Bed Leveling below.
//
// Use M851 to set the Z probe vertical offset from the nozzle. Store with M500.
//
// A Fix-Mounted Probe either doesn't deploy or needs manual deployment.
// For example an inductive probe, or a setup that uses the nozzle to probe.
// An inductive probe must be deactivated to go below
// its trigger-point if hardware endstops are active.
#define FIX_MOUNTED_PROBE
// The BLTouch probe emulates a servo probe.
// The default connector is SERVO 0. Set Z_ENDSTOP_SERVO_NR below to override.
//#define BLTOUCH
// Z Servo Probe, such as an endstop switch on a rotating arm.
//#define Z_ENDSTOP_SERVO_NR 0
//#define Z_SERVO_ANGLES {70,0} // Z Servo Deploy and Stow angles
// Enable if you have a Z probe mounted on a sled like those designed by Charles Bell.
//#define Z_PROBE_SLED
//#define SLED_DOCKING_OFFSET 5 // The extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
// Z Probe to nozzle (X,Y) offset, relative to (0, 0).
// X and Y offsets must be integers.
//
// In the following example the X and Y offsets are both positive:
// #define X_PROBE_OFFSET_FROM_EXTRUDER 10
// #define Y_PROBE_OFFSET_FROM_EXTRUDER 10
//
// +-- BACK ---+
// | |
// L | (+) P | R <-- probe (20,20)
// E | | I
// F | (-) N (+) | G <-- nozzle (10,10)
// T | | H
// | (-) | T
// | |
// O-- FRONT --+
// (0,0)
#define X_PROBE_OFFSET_FROM_EXTRUDER 10 // X offset: -left +right [of the nozzle]
#define Y_PROBE_OFFSET_FROM_EXTRUDER 10 // Y offset: -front +behind [the nozzle]
#define Z_PROBE_OFFSET_FROM_EXTRUDER 0 // Z offset: -below +above [the nozzle]
// X and Y axis travel speed (mm/m) between probes
#define XY_PROBE_SPEED 8000
// Speed for the first approach when double-probing (with PROBE_DOUBLE_TOUCH)
#define Z_PROBE_SPEED_FAST HOMING_FEEDRATE_Z
// Speed for the "accurate" probe of each point
#define Z_PROBE_SPEED_SLOW (Z_PROBE_SPEED_FAST / 2)
// Use double touch for probing
//#define PROBE_DOUBLE_TOUCH
//
// Allen Key Probe is defined in the Delta example configurations.
//
// *** PLEASE READ ALL INSTRUCTIONS BELOW FOR SAFETY! ***
//
// To continue using the Z-min-endstop for homing, be sure to disable Z_SAFE_HOMING.
// Example: To park the head outside the bed area when homing with G28.
//
// To use a separate Z probe, your board must define a Z_MIN_PROBE_PIN.
//
// For a servo-based Z probe, you must set up servo support below, including
// NUM_SERVOS, Z_ENDSTOP_SERVO_NR and Z_SERVO_ANGLES.
//
// - RAMPS 1.3/1.4 boards may be able to use the 5V, GND, and Aux4->D32 pin.
// - Use 5V for powered (usu. inductive) sensors.
// - Otherwise connect:
// - normally-closed switches to GND and D32.
// - normally-open switches to 5V and D32.
//
// Normally-closed switches are advised and are the default.
//
//
// The Z_MIN_PROBE_PIN sets the Arduino pin to use. (See your board's pins file.)
// Since the RAMPS Aux4->D32 pin maps directly to the Arduino D32 pin, D32 is the
// default pin for all RAMPS-based boards. Most boards use the X_MAX_PIN by default.
// To use a different pin you can override it here.
//
// WARNING:
// Setting the wrong pin may have unexpected and potentially disastrous consequences.
// Use with caution and do your homework.
//
//#define Z_MIN_PROBE_PIN
//
// Enable Z_MIN_PROBE_ENDSTOP to use _both_ a Z Probe and a Z-min-endstop on the same machine.
// With this option the Z_MIN_PROBE_PIN will only be used for probing, never for homing.
//#define Z_MIN_PROBE_ENDSTOP
// Enable Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN to use the Z_MIN_PIN for your Z_MIN_PROBE.
// The Z_MIN_PIN will then be used for both Z-homing and probing.
#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
// To use a probe you must enable one of the two options above!
// Enable Z Probe Repeatability test to see how accurate your probe is
#define Z_MIN_PROBE_REPEATABILITY_TEST
/**
* Z probes require clearance when deploying, stowing, and moving between
* probe points to avoid hitting the bed and other hardware.
* Servo-mounted probes require extra space for the arm to rotate.
* Inductive probes need space to keep from triggering early.
*
* Use these settings to specify the distance (mm) to raise the probe (or
* lower the bed). The values set here apply over and above any (negative)
* probe Z Offset set with Z_PROBE_OFFSET_FROM_EXTRUDER, M851, or the LCD.
* Only integer values >= 1 are valid here.
*
* Example: `M851 Z-5` with a CLEARANCE of 4 => 9mm from bed to nozzle.
* But: `M851 Z+1` with a CLEARANCE of 2 => 2mm from bed to nozzle.
*/
#define Z_CLEARANCE_DEPLOY_PROBE 10 // Z Clearance for Deploy/Stow
#define Z_CLEARANCE_BETWEEN_PROBES 5 // Z Clearance between probe points
//
// For M851 give a range for adjusting the Z probe offset
//
#define Z_PROBE_OFFSET_RANGE_MIN -20
#define Z_PROBE_OFFSET_RANGE_MAX 20
// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
// :{ 0:'Low', 1:'High' }
#define X_ENABLE_ON 0
#define Y_ENABLE_ON 0
#define Z_ENABLE_ON 0
#define E_ENABLE_ON 0 // For all extruders
// Disables axis stepper immediately when it's not being used.
// WARNING: When motors turn off there is a chance of losing position accuracy!
#define DISABLE_X false
#define DISABLE_Y false
#define DISABLE_Z false
// Warn on display about possibly reduced accuracy
//#define DISABLE_REDUCED_ACCURACY_WARNING
I use a Prusa i3 with a Ramps 1.4 and an inductive probe on Z axis. I recently update the old version of Marlin firmware for Marlin 1.1.0 RC8.
I have one problem with this new version: the inductive probe is not recognised as the endstop for z min. Consequently during G28 command, the Z move never stops.
In pin_RAMPS.h, I changed z min pin value for 12 and in configuration.h, I tried to invert logic of endstop. With these modifications, when I realise a M119 command:
1) if I put #define Z_MIN_ENDSTOP_INVERTING false in configuration.h, z min always appears open (even when a metal is detected by the probe)
2) if I put #define Z_MIN_ENDSTOP_INVERTING true in configuration.h, z min always appears triggered (even when no metal is detected by the probe).
Does anyone have an idea to fix this problem, please?
Thank you very much,
Fanny
PS: I put a part of my configuration.h below:
//===========================================================================
//============================== Endstop Settings ===========================
//===========================================================================
// @section homing
// Specify here all the endstop connectors that are connected to any endstop or probe.
// Almost all printers will be using one per axis. Probes will use one or more of the
// extra connectors. Leave undefined any used for non-endstop and non-probe purposes.
#define USE_XMIN_PLUG
#define USE_YMIN_PLUG
#define USE_ZMIN_PLUG
//#define USE_XMAX_PLUG
//#define USE_YMAX_PLUG
//#define USE_ZMAX_PLUG
// coarse Endstop Settings
#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors
#if DISABLED (ENDSTOPPULLUPS)
// fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined
//#define ENDSTOPPULLUP_XMAX
//#define ENDSTOPPULLUP_YMAX
//#define ENDSTOPPULLUP_ZMAX
//#define ENDSTOPPULLUP_XMIN
//#define ENDSTOPPULLUP_YMIN
//#define ENDSTOPPULLUP_ZMIN
//#define ENDSTOPPULLUP_ZMIN_PROBE
#endif
// Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
#define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define X_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Y_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MAX_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
#define Z_MIN_PROBE_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
// Enable this feature if all enabled endstop pins are interrupt-capable.
// This will remove the need to poll the interrupt pins, saving many CPU cycles.
//#define ENDSTOP_INTERRUPTS_FEATURE
//===========================================================================
//============================= Z Probe Options =============================
//===========================================================================
// @section probes
//
// Probe Type
// Probes are sensors/switches that are activated / deactivated before/after use.
//
// Allen Key Probes, Servo Probes, Z-Sled Probes, FIX_MOUNTED_PROBE, etc.
// You must activate one of these to use Auto Bed Leveling below.
//
// Use M851 to set the Z probe vertical offset from the nozzle. Store with M500.
//
// A Fix-Mounted Probe either doesn't deploy or needs manual deployment.
// For example an inductive probe, or a setup that uses the nozzle to probe.
// An inductive probe must be deactivated to go below
// its trigger-point if hardware endstops are active.
#define FIX_MOUNTED_PROBE
// The BLTouch probe emulates a servo probe.
// The default connector is SERVO 0. Set Z_ENDSTOP_SERVO_NR below to override.
//#define BLTOUCH
// Z Servo Probe, such as an endstop switch on a rotating arm.
//#define Z_ENDSTOP_SERVO_NR 0
//#define Z_SERVO_ANGLES {70,0} // Z Servo Deploy and Stow angles
// Enable if you have a Z probe mounted on a sled like those designed by Charles Bell.
//#define Z_PROBE_SLED
//#define SLED_DOCKING_OFFSET 5 // The extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
// Z Probe to nozzle (X,Y) offset, relative to (0, 0).
// X and Y offsets must be integers.
//
// In the following example the X and Y offsets are both positive:
// #define X_PROBE_OFFSET_FROM_EXTRUDER 10
// #define Y_PROBE_OFFSET_FROM_EXTRUDER 10
//
// +-- BACK ---+
// | |
// L | (+) P | R <-- probe (20,20)
// E | | I
// F | (-) N (+) | G <-- nozzle (10,10)
// T | | H
// | (-) | T
// | |
// O-- FRONT --+
// (0,0)
#define X_PROBE_OFFSET_FROM_EXTRUDER 10 // X offset: -left +right [of the nozzle]
#define Y_PROBE_OFFSET_FROM_EXTRUDER 10 // Y offset: -front +behind [the nozzle]
#define Z_PROBE_OFFSET_FROM_EXTRUDER 0 // Z offset: -below +above [the nozzle]
// X and Y axis travel speed (mm/m) between probes
#define XY_PROBE_SPEED 8000
// Speed for the first approach when double-probing (with PROBE_DOUBLE_TOUCH)
#define Z_PROBE_SPEED_FAST HOMING_FEEDRATE_Z
// Speed for the "accurate" probe of each point
#define Z_PROBE_SPEED_SLOW (Z_PROBE_SPEED_FAST / 2)
// Use double touch for probing
//#define PROBE_DOUBLE_TOUCH
//
// Allen Key Probe is defined in the Delta example configurations.
//
// *** PLEASE READ ALL INSTRUCTIONS BELOW FOR SAFETY! ***
//
// To continue using the Z-min-endstop for homing, be sure to disable Z_SAFE_HOMING.
// Example: To park the head outside the bed area when homing with G28.
//
// To use a separate Z probe, your board must define a Z_MIN_PROBE_PIN.
//
// For a servo-based Z probe, you must set up servo support below, including
// NUM_SERVOS, Z_ENDSTOP_SERVO_NR and Z_SERVO_ANGLES.
//
// - RAMPS 1.3/1.4 boards may be able to use the 5V, GND, and Aux4->D32 pin.
// - Use 5V for powered (usu. inductive) sensors.
// - Otherwise connect:
// - normally-closed switches to GND and D32.
// - normally-open switches to 5V and D32.
//
// Normally-closed switches are advised and are the default.
//
//
// The Z_MIN_PROBE_PIN sets the Arduino pin to use. (See your board's pins file.)
// Since the RAMPS Aux4->D32 pin maps directly to the Arduino D32 pin, D32 is the
// default pin for all RAMPS-based boards. Most boards use the X_MAX_PIN by default.
// To use a different pin you can override it here.
//
// WARNING:
// Setting the wrong pin may have unexpected and potentially disastrous consequences.
// Use with caution and do your homework.
//
//#define Z_MIN_PROBE_PIN
//
// Enable Z_MIN_PROBE_ENDSTOP to use _both_ a Z Probe and a Z-min-endstop on the same machine.
// With this option the Z_MIN_PROBE_PIN will only be used for probing, never for homing.
//#define Z_MIN_PROBE_ENDSTOP
// Enable Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN to use the Z_MIN_PIN for your Z_MIN_PROBE.
// The Z_MIN_PIN will then be used for both Z-homing and probing.
#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN
// To use a probe you must enable one of the two options above!
// Enable Z Probe Repeatability test to see how accurate your probe is
#define Z_MIN_PROBE_REPEATABILITY_TEST
/**
* Z probes require clearance when deploying, stowing, and moving between
* probe points to avoid hitting the bed and other hardware.
* Servo-mounted probes require extra space for the arm to rotate.
* Inductive probes need space to keep from triggering early.
*
* Use these settings to specify the distance (mm) to raise the probe (or
* lower the bed). The values set here apply over and above any (negative)
* probe Z Offset set with Z_PROBE_OFFSET_FROM_EXTRUDER, M851, or the LCD.
* Only integer values >= 1 are valid here.
*
* Example: `M851 Z-5` with a CLEARANCE of 4 => 9mm from bed to nozzle.
* But: `M851 Z+1` with a CLEARANCE of 2 => 2mm from bed to nozzle.
*/
#define Z_CLEARANCE_DEPLOY_PROBE 10 // Z Clearance for Deploy/Stow
#define Z_CLEARANCE_BETWEEN_PROBES 5 // Z Clearance between probe points
//
// For M851 give a range for adjusting the Z probe offset
//
#define Z_PROBE_OFFSET_RANGE_MIN -20
#define Z_PROBE_OFFSET_RANGE_MAX 20
// For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1
// :{ 0:'Low', 1:'High' }
#define X_ENABLE_ON 0
#define Y_ENABLE_ON 0
#define Z_ENABLE_ON 0
#define E_ENABLE_ON 0 // For all extruders
// Disables axis stepper immediately when it's not being used.
// WARNING: When motors turn off there is a chance of losing position accuracy!
#define DISABLE_X false
#define DISABLE_Y false
#define DISABLE_Z false
// Warn on display about possibly reduced accuracy
//#define DISABLE_REDUCED_ACCURACY_WARNING
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Re: Inductive probe doesn't recognized as the Z endstop January 03, 2017 08:40AM |
Admin Registered: 13 years ago Posts: 7,002 |
what type of probe NPN or PNP, 5v or 12v? normally closed or normally open?
(the fact that it doesn’t change means at this stage don’t worry about normally open or normally closed)
How is it wired? Directly? via voltage divider? Via a diode?
Perhaps this will help Inductive Proximity Sensor probing [www.youtube.com]
One thing I see in the code that seems confusing is that nothing seems to set the ENDSTOPPULLUP_ZMIN_PROBE if just #define ENDSTOPPULLUPS is set
If your probe needs the pull up, perhaps try disabling the coarse setting and enabling them in the fine controls
ie
Edited 5 time(s). Last edit at 01/03/2017 09:00AM by Dust.
(the fact that it doesn’t change means at this stage don’t worry about normally open or normally closed)
How is it wired? Directly? via voltage divider? Via a diode?
Perhaps this will help Inductive Proximity Sensor probing [www.youtube.com]
One thing I see in the code that seems confusing is that nothing seems to set the ENDSTOPPULLUP_ZMIN_PROBE if just #define ENDSTOPPULLUPS is set
If your probe needs the pull up, perhaps try disabling the coarse setting and enabling them in the fine controls
ie
// coarse Endstop Settings //#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors #if DISABLED (ENDSTOPPULLUPS) // fine endstop settings: Individual pullups. will be ignored if ENDSTOPPULLUPS is defined //#define ENDSTOPPULLUP_XMAX //#define ENDSTOPPULLUP_YMAX //#define ENDSTOPPULLUP_ZMAX #define ENDSTOPPULLUP_XMIN #define ENDSTOPPULLUP_YMIN #define ENDSTOPPULLUP_ZMIN #define ENDSTOPPULLUP_ZMIN_PROBE #endif
Edited 5 time(s). Last edit at 01/03/2017 09:00AM by Dust.
|
Re: Inductive probe doesn't recognized as the Z endstop January 03, 2017 09:36AM |
Registered: 7 years ago Posts: 2 |
Thank you for your anwser.
I will try to enable the fine endstop settings.
According to the inductive probe, the features are the following:
NPN
DC6-36V
300mA
Normaly open
I used an electronic adapter between the ramps and the probe. Find here the equipment I have : [https://www.reprap-3d-printer.com/product/1234568401-inductive-sensor]
I will try to enable the fine endstop settings.
According to the inductive probe, the features are the following:
NPN
DC6-36V
300mA
Normaly open
I used an electronic adapter between the ramps and the probe. Find here the equipment I have : [https://www.reprap-3d-printer.com/product/1234568401-inductive-sensor]
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