[RASH1]

I test :*ESP EMG LOOP IS OK
the control sends a signal ENABLE *MCON to servo
also *mccoff is ok (PSM JX1B PIN 7)go to 0volt !

(THE PROBLEM IS NOT IN THE PSM AND MCC CONTACTOR !)
This means that the machine ladder right?and the parameters ok ?
The problem must be in only in the servo ?
It cant be limit switch or sensor like air, oil and……..others sensors ?

[jacof]

Look at DNG 720 FOR X , 721 FOR Y AND 722 FOR Z.
See if any bit becomes a 1.
ie. when the machine is ready all the bits should be 0
720= 00000000
721= 00000000
722= 00000000
If any of them is a 1, it indicates an alarm which is explained in your Maintenance manual.
If you have Alpha servo drives , the drives do have a display that should read 0 when ready , - means not ready and any number from 1 to 9 is an alarm.

[RASH1]

Look at DNG 720 FOR X , 721 FOR Y AND 722 FOR Z.
See if any bit becomes a 1.
ie. when the machine is ready all the bits should be 0
720= 00000000
721= 00000000
722= 00000000
If any of them is a 1, it indicates an alarm which is explained in your Maintenance manual.
If you have Alpha servo drives , the drives do have a display that should read 0 when ready , - means not ready and any number from 1 to 9 is an alarm.

thank you
but no more alarm only 401 +vrdy off !
and the display on svm and psm i see (-)
spm (--)
???

[jacof]

thank you
but no more alarm only 401 +vrdy off !
and the display on svm and psm i see (-)
spm (--)
???

You need to see if the e/stop on the PSM is ready.
It is the plug next to the mcc plug and must be a close between the 2 wires.
That is the e/stop signal from the machine to get the drives ready.

[RASH1]

You need to see if the e/stop on the PSM is ready.
It is the plug next to the mcc plug and must be a close between the 2 wires.
That is the e/stop signal from the machine to get the drives ready.

thanks
the e stop ok (cx4 2 ,3) in PSM
also the e stop esp for cnc ok
the PSM get *mccof 0v
the read relay in the psm cx3 not activ
and than the main mcc contactor not work !
I replace the PSM fo testing but no change !

[jacof]

thanks
the e stop ok (cx4 2 ,3) in PSM
also the e stop esp for cnc ok
the PSM get *mccof 0v
the read relay in the psm cx3 not activ
and than the main mcc contactor not work !
I replace the PSM fo testing but no change !

This might sound dumb , but can you check on the drawings to see if you are switching 0v thru the PSM for the mcc or 110v?
Is the PSM you replaced it with new? Can you confirm if the internal relay contact is closing?
Normally it is the 110v going thru the PSM and the com. goes directly from the supply to the mcc on A2.
If all of that is ok , look in the ladder for Machine ready output '"Y"' and see what is holding it from switching on .

[RASH1]

Thank you very much for your help,
the psm as I replaced not new)
Today I did more tests:
When I connect to *DRDY to *MCON on a single axis (XY or Z) there is no change! Alarm stays!
But if I connect *MCON to*DRDY in all axes, the alarm disappear !! (the psm stil not work )
(In testing I removed the plug from the card axes, and there I connected *MCON to*DRDY )
Other tests that I did:
Test servo parameters.
Test all cables,
Test MCON *.
Test MCOFF * to PSM input
EMG test signal to all the places.

When I disconnect or bypass axis I get another alarm depending axis.
The supplier does not want to work!
I checked the circuit of the relay
The question: What other signals from the nc needs to run the PSM?

Thank you very very much

David

[jacof]

Thank you very much for your help,
the psm as I replaced not new)
Today I did more tests:
When I connect to *DRDY to *MCON on a single axis (XY or Z) there is no change! Alarm stays!
But if I connect *MCON to*DRDY in all axes, the alarm disappear !! (the psm stil not work )
(In testing I removed the plug from the card axes, and there I connected *MCON to*DRDY )
Other tests that I did:
Test servo parameters.
Test all cables,
Test MCON *.
Test MCOFF * to PSM input
EMG test signal to all the places.

When I disconnect or bypass axis I get another alarm depending axis.
The supplier does not want to work!
I checked the circuit of the relay
The question: What other signals from the nc needs to run the PSM?

Thank you very very much

David

Hi David
Can you confirm that you are getting the MACHINE READY signal from the control?
If you are not getting that , you will never switch on the PSM.
Jacof

[RASH1]

Hi David
Can you confirm that you are getting the MACHINE READY signal from the control?
If you are not getting that , you will never switch on the PSM.
Jacof

Hi Jacof

how to check ?
on the cable from control to servo ?
the signal enable to servo is *mcon and this signal ok!
Did you mean a different signal? What his name? And where to test it?

[jacof]

Hi Jacof

how to check ?
on the cable from control to servo ?
the signal enable to servo is *mcon and this signal ok!
Did you mean a different signal? What his name? And where to test it?

Hi David.
Need to check in the electrical drawings of the machine.
Look for a ''Y'' out put from control. i.e Y48.7.
When you find it in the drawings , go to your Diagnostic screen and see if it is a ''0 or a 1''.
Do you know how to read the Dng?If not it works from right to left i.e. 00000001 where the 1 is your bit 0 and the far left 0 is bit 7.
The machine ready must be a 1.
If not , go to your Ladder screen ,type in ''Y__._ and press softkey ''search''
The control will jump to that line , and then you can see what is holding up the output ''Y'' from switching on.
Going out of the office now. Send your reply and I will try and futher assist you when I come back
Jacof

[RASH1]

HI JACOF

Y48.7 IN MY LADDER IS CLNSOL –COOLANT SOLENOID VALVE:
MACHINE READY = G0229.7 ITS OK
IS IT POSSIBLE THE PROBLEM IN THE LADDER ?
IF THE PROBLEM THERE , THE CONTOL WILL SEND THE *MCON ? (THE *MCON SIGNAL OK )


I APPRECIATE VERY MUCH YOUR HELP

DAVID

[jacof]

HI JACOF

Y48.7 IN MY LADDER IS CLNSOL –COOLANT SOLENOID VALVE:
MACHINE READY = G0229.7 ITS OK
IS IT POSSIBLE THE PROBLEM IN THE LADDER ?
IF THE PROBLEM THERE , THE CONTOL WILL SEND THE *MCON ? (THE *MCON SIGNAL OK )


I APPRECIATE VERY MUCH YOUR HELP

DAVID

Hi David
So , as far as I understand, you only got alarm 401 v-ready off.
It sounds to me like the machine is just waiting for the on confirmation from the drives.
Let's try this: On the PSM on the plug for the e-stop , remove the plug. Insert a bridge between the pins where the 2 wire was.
Remove the plug for the mcc.Put your test leads on the 2 pins where the wires was. Meter on ohms.
Get some one to switch on and see what does the meter show.
Should got to 000.00 briefly then ------- as this is a potential free contact with no voltage if not pluged in.
This way we are by passing the e-stop circuit and proving if the internal relay is switching(PSM recieving ready signal from control).
Can you also let me know what machine it is
Jaco

[jacof]

Also the machine ready should be on the Y to switch an out put.
Can you confirm please

[RASH1]

HI JACOF


yes, only got alarm 401 v-ready off: svm and psm display ( - ) spm (- -)


When I turn on the machine, without nc control ,em plug in cx4 pin 2,3 IS closed and there is 24v in 2 and 3 !
Maybe this contact opened when I turn on the control ?
I will try to do the test (Insert a bridge between the pins) in Sun day.

the machine ready= GO229.7 IS OUTPUT FROM THE PMC TO THE CNC. I HAVE NOT FOUND THIS OUTPUT IN "Y"



Maybe the cnc need only ANY reset ? if yes, do you know how to do the reset ?

many thanks
David

VERTICAL MACHINING CENTER LEADWEEL
MODEL: MCV-610CR
SERIAL NO:LISIE0127
MFG DATE :JUL. 1995
CNC UNIT
MODEL :FANUC-0MF
MFG NO:T95420136
PSM:A06B -6077-H111A
SPM:A06B-6078-H211 #500
Y Z AMP: A06B-6079-H206A
X AMP :A06B -6079-H103A

[jacof]

HI JACOF


yes, only got alarm 401 v-ready off: svm and psm display ( - ) spm (- -)


When I turn on the machine, without nc control ,em plug in cx4 pin 2,3 IS closed and there is 24v in 2 and 3 !
Maybe this contact opened when I turn on the control ?
I will try to do the test (Insert a bridge between the pins) in Sun day.

the machine ready= GO229.7 IS OUTPUT FROM THE PMC TO THE CNC. I HAVE NOT FOUND THIS OUTPUT IN "Y"



Maybe the cnc need only ANY reset ? if yes, do you know how to do the reset ?

many thanks
David

VERTICAL MACHINING CENTER LEADWEEL
MODEL: MCV-610CR
SERIAL NO:LISIE0127
MFG DATE :JUL. 1995
CNC UNIT
MODEL :FANUC-0MF
MFG NO:T95420136
PSM:A06B -6077-H111A
SPM:A06B-6078-H211 #500
Y Z AMP: A06B-6079-H206A
X AMP :A06B -6079-H103A

Can you please give me your e-mail address?
want to send some drawings

[RASH1]

Can you please give me your e-mail address?
want to send some drawings

[email protected]
thanks 🍷