[looey_bj]

today i move the control's POWER SWITCH to the ON positon.the Start up screen ,below,will tell me "PUSH MODE SELECT TO SEE MENU"
When i press the MODE SELECT key,nothing to happen! the operator panel's CNC keyboard is invalid.
Attachment 350116
the first ,i check the keyboard "MODE SELECT"KEY that is ok.beccause when i make the COL0 grouds and push "MODE
SELECT "KEY ,the ROW4 become grounds.
Attachment 350118
the second, when i push "MODE SELECT"KEY ,the LED2 will flash frequently to indicae that Canbus is functioning
properly.
Attachment 350120
the last,i find no err information on LED or message on screen .
Attachment 350122
Attachment 350124
what is the wrong with my delta 4OM ?
thanks for your help !

[cngbrick]

Hi looey_bj,

Did you check all the other keyboard switch combinations to confirm there are no stuck keys making contact at the same time you are pressing the mode select key?

RT

[looey_bj]

HI cngbrick

thanks for your help. i am from china. do u have another contact way? such as email. may i write email to u directly?
i will check keyboard lately ,i think the keyboard is ok , computer receive the instruction but nothing to do. something wrong in motherboard?

[cngbrick]

looey_bj,

I believe it's better if we address your issue here, that way everyone benefits if we find a solution. Please let us know what you find with the keyboard.

RT

[looey_bj]

today i check all keys of keyboard ,i find no problem.
i use oscilloscope to monitor the singal of keyscan
Attachment 350240
Attachment 350242
Attachment 350244

[cngbrick]

Did you verify that all the boards in the controller are fully seated? The is also a ribbon cable that connects to the top of some cards which may be related to CAN bus vommunication.

RT

[looey_bj]

If there is something wrong in canbus communication ,computer will give a err message on LED , but all led is flashing normally

[cngbrick]

Some other suggestions:

1) Do the soft keys ("advanced features", "customer service", "exit to dos") under the monitor work?
2) Since you have an oscilloscope, you should verify the power supply output voltages for excessive ripple, an apparently common cause of problems on older Dynapath controls.

RT

[looey_bj]

what can i do ?-------motor not move!

after make a great effort , the machine have gone into the manu! i found that the servo board control multi keyboard function.
softkey function is ok .
panel keyboard is ok
Attachment 350962
but the system is in "jog mode",when i press "X +" or y or z ,the moters dont rotate , screen display initial value still.
servo drive led is green indicate ready.
Attachment 350966
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1.is there some software settings control the servo motors?
2.is something wrong with chips on servo board? no output signals to serve drives?
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pless tell me what can i do ,make old machine moving
thenks very much

[cngbrick]

A few more questions for you

1) Was this machine working recently or has it been off for some time?
2) Can you tell us what you did to get your keypad working? Did you correct a problem with the control?
3) What does the FAULT/STATUS screen say?
4) I can't see from your photos, but is the feedrate override control set to stop? That would prevent the servos from moving.

RT

[looey_bj]

thanks for your help , All problems have been resolved ,My machine is working normally now!

what methed i used

1.panel keyboard function is controlled by PLC with CANBUS communication .When keyboard invilid ,we must check keyboard self ,if keyborad is ok ,then measurement the canbus ,the last check PLC .

2. buy new ISA 96 PIN header and IDC10 head ,update!
3 with new line conection PLC Servo IO MTC
4.monitor PLC siganl from screem

Finally ,i found the singal of JOG disable from screem,So, check MTC all lines. Retract BUTTON is broken!!!

[cngbrick]

Good work! Thank you for posting your solution. The PLC screen is a very useful troubleshooting tool.

RT