Lotem 800v2 error in xy centering

[kala]

Hi

if i give xy in harware iam facing the below mentioned error:

error 1:
DC Motor HP messing or Disconnected.
The task centering motor Go HP detector failed.
The task xy initialize of loading system failed

if xy works sometime then iam facing the below mentioned error
error 2
Centering motor task didnot end
The task centering motor go pos failed.
The task load from casette to punch entry loading system failed.
The task load from punch entry to drum entry loading system failed.

We tried changing the hp sensor on left hand side near centering motor. ( we changed the belt last week and adjusted it last week this is fyi its working fine past 1 week)

Under hardware/loading system system/centering system/ centering motor - if we give position or distance its not working if we give HP Det we are getting the below mentioned error.

Under centering motor / centering motor home position detector status is default on

Under centering motor / centering motor plate short detector status default off.

We adjusted those two bars manually and hold it then centering motor plate short detector status default on and if we release our manual hold then it shows off.

Under detectors we found some of the status off & On

Like Bar flage 1 detector - off
Bypass casette line detector - on
bypass casette outside detctor - on
bypass lock hp detector - on
dc tray button detector - off
paper/metal det - on
plate in punch short detec - off
xy vaccumok detec - off
xy vaccum power on dtectective - off

regards
kala

 

[PACH]

Hi

if i give xy in harware iam facing the below mentioned error:

error 1:
DC Motor HP messing or Disconnected.
The task centering motor Go HP detector failed.
The task xy initialize of loading system failed

if xy works sometime then iam facing the below mentioned error
error 2
Centering motor task didnot end
The task centering motor go pos failed.
The task load from casette to punch entry loading system failed.
The task load from punch entry to drum entry loading system failed.

We tried changing the hp sensor on left hand side near centering motor. ( we changed the belt last week and adjusted it last week this is fyi its working fine past 1 week)

Under hardware/loading system system/centering system/ centering motor - if we give position or distance its not working if we give HP Det we are getting the below mentioned error.

Under centering motor / centering motor home position detector status is default on

Under centering motor / centering motor plate short detector status default off.

We adjusted those two bars manually and hold it then centering motor plate short detector status default on and if we release our manual hold then it shows off.

Under detectors we found some of the status off & On

Like Bar flage 1 detector - off
Bypass casette line detector - on
bypass casette outside detctor - on
bypass lock hp detector - on
dc tray button detector - off
paper/metal det - on
plate in punch short detec - off
xy vaccumok detec - off
xy vaccum power on dtectective - off

regards
kala

Just an idea: try and measure from one of the pins to earth. Depending on a Local2 or Local3 board you should get different readings.
Measure between the pins.....
measure between one pin and earth.......
measure between the other pin and earth......
Let mem know what the results are,
By the way , have you tried and swapped between your Local boards?

 

[kala]

i have not tried swapping the local boards; i couldnt understand the point earth... to pin could u make it clear

 

[PACH]

i have not tried swapping the local boards; i couldnt understand the point earth... to pin could u make it clear

Kala,
Use a DVM and measure DC voltage between one of the Centering pins ( i.e. LHS one)and Erath
Measure between the the 2 Pins
Measure between the other Pin ( RHS one ) and Earh.
The centering mechanism works othe Pins coming together and measuring a Short circuit so the voltage will drop to Zero between the pins for a short time.
Have a go.

 

[kala]

let me try this and get back to u; is it necessity to interchange the local boards if yes then where its located above laser box there are more connectors which one is local board if i interchange hope it wont shows any additional error... kindly confirm

 

[PACH]

let me try this and get back to u; is it necessity to interchange the local boards if yes then where its located above laser box there are more connectors which one is local board if i interchange hope it wont shows any additional error... kindly confirm

I do not know which configuration you have but you will find one local board above the L Box ( where the laser diodes are).
The other one can be at the other end. i.e. if you open the RHS door and pannel you will see the Local box OR
It could be behind the Upper rear pannel or Lower rear pannel.
Make sure that you powered down the Lotem when you are going to swap the Locals.

 

[kala]

Hi Pach

pls find the reply..

we interchanged the local boards no difference.,

before interchanging the readings as below :

lhs to earth - 8.90
rhs to earth - 4.42
between the pins - 4.53

after interchanging

lhs to earth - 9.03
rhs to earth - 4.46
between the pins - 4.56

still the problem exists we changed the home detector sensor from y to centering and now the error shifts to y motor if we click xy it shows the error dc motor hp detector messed up or disconnected. the task y motor go hp detector failed. the task xy initialise of loading system failed. kindly advise what to do next??/

 

[PACH]

Hi Pach

pls find the reply..

we interchanged the local boards no difference.,

before interchanging the readings as below :

lhs to earth - 8.90
rhs to earth - 4.42
between the pins - 4.53

after interchanging

lhs to earth - 9.03
rhs to earth - 4.46
between the pins - 4.56

still the problem exists we changed the home detector sensor from y to centering and now the error shifts to y motor if we click xy it shows the error dc motor hp detector messed up or disconnected. the task y motor go hp detector failed. the task xy initialise of loading system failed. kindly advise what to do next??/

Kala,

YOu must have Local 2 boards and your measurements are OK. I hope that you did not damage the HP detector when you moved it from the Y motor. Try and use Diag to run the Y motor and Centering motor and see what you get. Also run Diag on the Local boards.

 

[kala]

Hi patch

so far past 4 years we never used diag ( 4 year before we faced a couple of boards problem when we start diag) so scared to do diag...

Next regarding detector (sensor) we tried remove few sensors (detectors) from dolev 800v home and end sensors but nothing different ...

according to my knowlegde iam suspecting problem from y motor side ... if i remove manually its rotating slowly checked the power getting 24v according to 24 v it has to rotate fast but sofar its rotating slow..

Kindly answer my below questions can wee swap x motor instead of y motor to check or both are different power kindly confirm..

1. we have taken sensor from our scitex dolev 800v imagesetter - whether it will support or not...
2. we tried both home and end position sensors - no change in error part
3. whether u need any particular sensor (home or end ) for x / y & centering...

regards
kala

 

[PACH]

Hi patch

so far past 4 years we never used diag ( 4 year before we faced a couple of boards problem when we start diag) so scared to do diag...

Next regarding detector (sensor) we tried remove few sensors (detectors) from dolev 800v home and end sensors but nothing different ...

according to my knowlegde iam suspecting problem from y motor side ... if i remove manually its rotating slowly checked the power getting 24v according to 24 v it has to rotate fast but sofar its rotating slow..

Kindly answer my below questions can wee swap x motor instead of y motor to check or both are different power kindly confirm..

1. we have taken sensor from our scitex dolev 800v imagesetter - whether it will support or not...
2. we tried both home and end position sensors - no change in error part
3. whether u need any particular sensor (home or end ) for x / y & centering...

regards
kala

KALA,

What I do not understand that how come you have a problem with the X/Y when originaly the Centering system was problematic? What is the latest with this?
The X and Y motors are the same but I am not sure about the brackets. You can vary the speed of these motors in the motors dialogue under Hardware/ Loading system etc. Some of the detectors are similar to the D800s.

 

[kala]

KALA,

What I do not understand that how come you have a problem with the X/Y when originaly the Centering system was problematic? What is the latest with this?
The X and Y motors are the same but I am not sure about the brackets. You can vary the speed of these motors in the motors dialogue under Hardware/ Loading system etc. Some of the detectors are similar to the D800s.

Hi Patch

Sorry for my late reply...

rightnow we found that y motor is the problem and iam just awaiting for the spare to confirm...

Kindly advice is it possible to get or arrange spare for lotem 800v2...

Is it possible to repair or service lotem spares like (DDB Board / Power Supply / Universal Tsp / DC Motor)

regards
kala

 

[PACH]

Hi Patch

Sorry for my late reply...

rightnow we found that y motor is the problem and iam just awaiting for the spare to confirm...

Kindly advice is it possible to get or arrange spare for lotem 800v2...

Is it possible to repair or service lotem spares like (DDB Board / Power Supply / Universal Tsp / DC Motor)

regards
kala

Kala,

Does this mean that your centering assy is working OK now? What was the problem with this?
As far as spares go I am afraid I can not help you but I will ask arround to see if i can find a supplier.
To repair a DDB board you need special testing equipment and software as it is a VERY complex board.

 

[kala]

Kala,

Does this mean that your centering assy is working OK now? What was the problem with this?
As far as spares go I am afraid I can not help you but I will ask arround to see if i can find a supplier.
To repair a DDB board you need special testing equipment and software as it is a VERY complex board.

No after getting the y dc motor then only i can say what is the problem and where is the problem..

If u suggest someone for repairing DDB boards then it is very gud for me though i have 3 failed DDB boards..

regards
kala

 

[kala]

lotem 800v2 error_loading xy command

lotem 800v2 error_loading xy command

Kala,

Does this mean that your centering assy is working OK now? What was the problem with this?
As far as spares go I am afraid I can not help you but I will ask arround to see if i can find a supplier.
To repair a DDB board you need special testing equipment and software as it is a VERY complex board.

Hi Pach

Gud afternoon. Still my lotem is not working.

Today we changed the new y dc motor and again i faced the same error.. Kindly advise me the below questions.

1. Left Local controls both centering + X motor

Under hardware tree / centering motor if i give home position command the centering motor works and moved to home position without any error
but if i give end position command the motor rotates on the same direction but centering is not moving and it shows centering error...

2. Right Local controls Y motor

if i give xy command error comes in centering side

Now iam swapping the left local into right and right local into left,

Under Harware Tree / centering motor motor if i give home position the centering motor works and moved to home position without any error
but if i give end position command the motor rotates on the opposite direction and the centering is move slowly no error.
( hope it has to work fast or same as home position works)

If i give xy command error comes in y side.

Left Local and Right Local have similar function or different ; if similar means why the end position works slowly in centering motor when we swaps...

Next there are 7 connections like J1/J2/J3 to J7 what is the function of each and which connectors control x / y and centering in both cards..

Kindly note that if i swap the boards y motor is getting overheated... might be this is the reason y motor was down last time...

so we swap the boards to default state now no overheat from y motor side.

Awaiting for ur reply.

regards
kala

 

[nemo]

""Under Harware Tree / centering motor motor if i give home position the centering motor works and moved to home position without any error
but if i give end position command the motor rotates on the opposite direction and the centering is move slowly no error. ""

Please state again if your XY bar is working fine or not (X. Y go HP and position ok)

For Centering system, it needs to be calibrated first in order to work:
End position means closing the circuit to through a plate (contact between pins and plate edge). The speed is the one you enter in the control window.

If I understand well the pins are moving both ways.
Send the centering system to HP and note the value that shows in the bottom left of the window.
Measure the plate width exactly (with a measuring tape), do a load "from cassette to punch entry"
With a speed of 10mm/sec, send the centering motor to end position and see if the pins are going all the way to the edge of the plate. If they don't, try a larger plate size first.
If they still stop short, reply here with all the values listed under centering motor properties or in regedit under:
[HKEY_LOCAL_MACHINE\Software\Scitex\Projects\LOTEM800V\IO OBJECTS\NEW LOCAL \DC MOTORS\Centering Motor]

If it touches the plate and stops, check again the value in the bottom right of the window.
Reply here with the HP value, exact plate size, end value and the Virtual HP APP value from the centering system properties.

 

[kala]

Lotem is working now

Lotem is working now

Hi all

After changing the y motor and left local 2 board our lotem started working... thanks for patch and nemo..

regards
kala

 

[PACH]

Hi all

After changing the y motor and left local 2 board our lotem started working... thanks for patch and nemo..

regards
kala

Glad to hear, Kala that you got your Lotem working.
Well done.

 

[kala]

Hi Patch

Iam facing data (image) corruption error in lotem 800v with 48 laser fiber head + brisque + TSP spec from last week onwarrds

instead of dots iam getting lines on the images here and there ..

If i do diagnostic test for tsp in brisque it shows pass no error messages but when i switch on the lotem ctp and give diagnostic test it shows fail on plotter I/F - Internal lop test fail

kindly note that if i switch on the ctp immediatel i get this error in tsp diagnostic error message fail

Can anyone help we changed tsp cable; we changed tsp board still same status

Kindly suggest..

regards
kala

 

[PACH]

Hi Patch

Iam facing data (image) corruption error in lotem 800v with 48 laser fiber head + brisque + TSP spec from last week onwarrds

instead of dots iam getting lines on the images here and there ..

If i do diagnostic test for tsp in brisque it shows pass no error messages but when i switch on the lotem ctp and give diagnostic test it shows fail on plotter I/F - Internal lop test fail

kindly note that if i switch on the ctp immediatel i get this error in tsp diagnostic error message fail

Can anyone help we changed tsp cable; we changed tsp board still same status

Kindly suggest..

regards
kala

Kala,

If you changed the TSP and the cable it looks like the DDB board. Try and load the firmware onto it by going to Registry/ Lotem/etc......DDB board and change the Force download to 1 and restart the Lotem . Just an idea as it might not help. Did you try and switch off like the last 24 diodes and plot like that?