Error when trying to home for testing

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09 Nov 2023 03:50 #284915 by morg769
Hello,
I am getting an error when trying to home  "Cannot jog joint 1 because home _sequence is synchronized (-2)". I do not have the enable wired and the stepper motors are not moving or locked. I do have green lights on the DM566 drives, I am useing a Mesa 7i96s controller, Here is my hal and ini files.

File Attachment:

File Name: printnc.hal
File Size:12 KB
 

File Attachment:

File Name: printnc.ini
File Size:5 KB
Attachments:

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09 Nov 2023 04:42 #284916 by PCW
If the drives are not locked, that is a most likely
a wiring or drive setup issue. Is the enable polarity
settable in the drives?

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09 Nov 2023 05:48 #284918 by morg769
Hello,

First Thank You for your replay. I don't  think the enable is settable on the driver, not by the switchs anyway.  Here is a photo of the stepper driver and description on how I have it wired and set:


(Signal)
Wire Color
DM556 Driver
Mesa 7i96s

Blue
PUL+
Step+
Yellow
Pul-
Step-
Red
DIR+
DIR+
White
DIR- 
DIR-
                                        ENA+
N/A
                                        ENA-
N/A

(Settings)
SW1
On
SW2
On
SW3
Off
SW4
ON
SW5
On
SW6
On
SW7
On
SW8
Off

(High Voltage)
42 Volts

Black
-42V
Red
+42V

Nema 23 Stepper Motor

B- 
Blue Wire
B+
Red Wire
A-
Yellow Wire
A+
Black Wire



 
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09 Nov 2023 06:47 - 09 Nov 2023 06:55 #284919 by morg769
 

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Hello,Sorry the formatting changed on the wire description here a PDF of it.
Attachments:
Last edit: 09 Nov 2023 06:55 by morg769. Reason: wrong file

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09 Nov 2023 14:45 #284945 by PCW
If the drives are not locked  (with no step/dir signals connected)
There is an issue with the drives or motor wiring.

Also I would not use differential wiring as you have but single
ended as the DM556 manual suggests:

7I96S +5V --> DM556 PUL+
7I96S +5V --> DM556 DIR+
7I96S STEP- --> DM556 PUL-
7I96S DIR- --> DM556 DIR-

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09 Nov 2023 18:53 #284957 by morg769
Hello,

I wired it as the diagram showed they had on there website they did not have a manual listed or posted. I will rewire and see if it works.

Thank You

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12 Nov 2023 00:08 #285144 by morg769
Hello,

I now have it moving and homing. Buy the y axis homes - and backs off like it should, but the travel after that is backward + is back over the home switch not away from it. How do I fix this?

Thanks

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12 Nov 2023 09:09 #285151 by rodw
Direction is controlled by the sign of the various home velocities in your ini file.

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12 Nov 2023 22:17 #285207 by morg769
I tried changing the home velocities in the ini.file. It only changes the Homing directions. It is homing in the right direction it is after it homes and you try to jog the machine that the direction are reversed -Y moves Positive and +Y move Negative.

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12 Nov 2023 22:23 #285209 by tommylight

I tried changing the home velocities in the ini.file. It only changes the Homing directions. It is homing in the right direction it is after it homes and you try to jog the machine that the direction are reversed -Y moves Positive and +Y move Negative.

The direction of the joints/axis is reversed, so add or remove - in front of the SCALE value for those joints.
You also have to do the same for home_search_velocity and/or home_latch_velocity.

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