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IndustryArena Forum > Machine Controllers Software and Solutions > Fanuc > Matsuura MC-1000V with Fanuc 15M control doesn't power
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  1. #1
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    Matsuura MC-1000V with Fanuc 15M control doesn't power

    Machine was on. I was looking at an error on the screen that I think was related to the pallet changer (that isn't on the machine anymore). The control turned off. I think I heard a click but wasn't able to tell if it was from the control or a breaker in the cabinet. I've checked every breaker I can find. I suspect a fuse or breaker that I'm not readily finding. Pressing the power switch doesn't make any clicking noises or turn on the CRT. Any ideas?

  2. #2
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    This is what I had on the screen prior to it turning off.
    Attachment 271272

  3. #3
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    You were in Estop already? Also check the fuses/overloads with a meter (main power OFF).
    Check the lights/fuses on the Fanuc Input Unit.

  4. #4
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by memoryman View Post
    You were in Estop already? Also check the fuses/overloads with a meter (main power OFF).
    Check the lights/fuses on the Fanuc Input Unit.
    Just bringing this machine online after being moved. I suspect the estop is related to the now missing pallet changer.

    I've attached a photo of what I think is the Fanuc Input Unit. The leds PIL and ALM are both off. Fuses are all good. Voltage at R and S is 212V. This is a 208 3 phase system. The online maintenance manual, which is newer than my hard copy has some tests. Being that the fuses are good and the green PIL led never comes on it appears to be a bad power unit. The power unit they are describing is the input unit or the upper power supply? See the picture below.

    Thanks for your help. I couldn't find the PIL and ALM leds for the life of me.

    Attachment 271338
    Click image for larger version. 

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  5. #5
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    that is the unit that controls the POWER ON to the control; it could be defective. The control ON/OFF pushbuttons go to it; check them out.

  6. #6
    Join Date
    Feb 2015
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    174

    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Ut oh! there is a single digital led numeric indicator on the motherboard, you may have to remove few screws and open the panel to see it. What does it read? 1 is good anything else is NOT good. Looks like this.

    https://encrypted-tbn0.gstatic.com/i...SmXeiAzmcUl-Ai

    No "click" power relays not responding. Ut oh....

    I love that sound, click click and then power up. we're in!

  7. #7
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by memoryman View Post
    that is the unit that controls the POWER ON to the control; it could be defective. The control ON/OFF pushbuttons go to it; check them out.
    I'll check the buttons. Shouldn't the green PIL led be on all the time on the input board?

    Edit: I'm looking at the photo I posted of the input board today. I think I finally found fuses F1 and F2. I had checked all the buss fuses and only looked at the fuses on the board without actually checking them. Does the white indicate tripped? I know what the first thing I'm going to check in the morning. :laugh:

    Attachment 271354

  8. #8
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    I reset the fuses F1 and F2. Still no joy. The PIL is still off. Bad input board?

  9. #9
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    The PIL should be on. These fuses cannot be reset; must be replaced.

  10. #10
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by memoryman View Post
    The PIL should be on. These fuses cannot be reset; must be replaced.
    I thought the white flag could be pushed to reset. I ordered some P4100H fuses. These ones are definitely bad. Thank you for confirming the PIL status. I'll try again when the fuses arrive next week.

  11. #11
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    24216

    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    The flag fuses can be simple to rewire, if you use the same gauge single copper conductor.
    Open them up and the wire has to be soldered at the same time pull off of the closed contact.
    In some cases these are used across much larger fuses as an indicator alarm function.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  12. #12
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by Al_The_Man View Post
    The flag fuses can be simple to rewire, if you use the same gauge single copper conductor.
    Open them up and the wire has to be soldered at the same time pull off of the closed contact.
    In some cases these are used across much larger fuses as an indicator alarm function.
    Interesting. I took the fuse apart yesterday and I saw how simple they are. I did some reading on fuse wire and most use tinned-copper. McMaster-Carr has a bunch of small diameter tinned-copper. I think I'll measure the wire and order a spool the next time I order. McMaster-Carr

    Click image for larger version. 

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  13. #13
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Afaik, some silver alloy is often used.

  14. #14
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    I need to measure the wire but I found this table:
    American wire gauge - Wikipedia, the free encyclopedia

  15. #15
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by forhire View Post
    I think I'll measure the wire and order a spool the next time I order.
    One source of replacement copper wire is if you have any stranded wire conductors lying around and use a strand from this.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  16. #16
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by Al_The_Man View Post
    One source of replacement copper wire is if you have any stranded wire conductors lying around and use a strand from this.
    I was crazy busy today so I didn't get a chance to hunt for the correct diameter strand. I'm sure I have something around that will work. I did measure the wire in one of the fuses. It was 0.010" (30 gauge). Exactly what the chart listed for 10A in the Preece column. Now that I've done my homework I'm more confident to rewire the old fuses.

  17. #17
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    I soldered up the two flag fuses. It was fairly easy. I had to drill out the plastic sleeve where the wire passes to remove the remnants of the old wire, but other than that it was straight forward. I installed the fuses back onto the input board and powered it up. The green PIL light came on. So I pressed the on button on the control and it started booting. Yeah! But my joy was short lived. It then blew one of the JG1 10A fuses after it was on a few minutes. Now it's possible that this fuse was strained when the other fuses went. I need to find some JG1 fuses and see what happens. At least now I know the control on button works and the CRT is working.

    Here's the repaired fuse.
    Attachment 271812

  18. #18
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    It appears you have a short or partial one out on the machine somewhere, do you have the schematics for the machine?
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  19. #19
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Most likely the +24V supply; often there is a shorted diode across a relay coil somewhere...

  20. #20
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    Re: Matsuura MC-1000V with Fanuc 15M control doesn't power

    Quote Originally Posted by Al_The_Man View Post
    It appears you have a short or partial one out on the machine somewhere, do you have the schematics for the machine?
    Yes I have the schematics.

    Quote Originally Posted by memoryman View Post
    Most likely the +24V supply; often there is a shorted diode across a relay coil somewhere...
    Are you talking the on the input board or the power supply (A16B-1211-0890-01) that plugs into the backplane?

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