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  1. I have the FR-SF service manual BNP-A 0801-19-D-E...

    I have the FR-SF service manual BNP-A 0801-19-D-E

    File size is over 15 MB.

    The T2 control is not bus linked to the drive, so all the drive parameters are set on the drive.
    #33 is for accel....
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    Most of the heads like this I have worked on are...

    Most of the heads like this I have worked on are NMTB-30 spindle taper.
    They do not use a draw bar like the R-8, but have a nut on the spindle mouth to hold the tools in.

    Bill
  3. The nameplate on the door of the electrical panel...

    The nameplate on the door of the electrical panel lists the schematic part number.
    The stuff I have posted is from a CHB-8220 drawing, normally the only thing that changes is the version letter a...
  4. Check the 3 phase power to the bottom of the...

    Check the 3 phase power to the bottom of the FR-SF. Phase to phase and phase to ground, 6 checks.
    Line voltage may be a little high.

    When does it fault out above 1000 RPM?
    Picking up speed?...
  5. First the spindle rotation must be correct. I...

    First the spindle rotation must be correct.

    I started this thread to help others troubleshoot the HC speed controls.


    Hardinge HC spindle variable speed won't change speed troubleshooting info...
  6. Try running the spindle at 10 RPM. Does it turn...

    Try running the spindle at 10 RPM.
    Does it turn smoothly, or pause (may even turn backward) then jump a little?
    You may need to look at the motor pulley to see that the jump happens at the same...
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    Get the drive checked out first. with part of a...

    Get the drive checked out first. with part of a sine wave missing, the motor has no torque to hold position.
    So this problem may go away when the first problem is fixed.

    Bill
  8. Posting an accurate wording of the alarm is a...

    Posting an accurate wording of the alarm is a good place to start.
    "Something" in the wording will keep most people away.
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    If the spindle drive is a FR-SE or a FR-SF there...

    If the spindle drive is a FR-SE or a FR-SF there is a power supply at the top of the drive that has lots of outputs.
    There is probably 1 or more outputs that are not working.
    This leaves parts of...
  10. Use Mazatrol for it's strength, and then calling...

    Use Mazatrol for it's strength, and then calling G code subroutines to do the complex and 5 axis stuff.

    Best of both worlds.
  11. Posting a link to the manual for the VFD you...

    Posting a link to the manual for the VFD you intend to use would allow us to help you better.


    On the VFD's I have worked with there are 2 things to look for.

    1. A note on what 2 phases to...
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    The backup battery for the programs and...

    The backup battery for the programs and parameters etc is on the P.S.
    If it is unplugged overnight, you probably will need to re-initialize the control, and replace the items lost.

    Bill
  13. I have an old Union 5" 3 Jaw with 2 Pc. Jaws. I...

    I have an old Union 5" 3 Jaw with 2 Pc. Jaws.
    I have made several sets of soft jaws for it.
    They are used for applications where I can't fit the part into any of my chucks. Such as a tall dish...
  14. My B'port sits on 4 X 4's. There are shims under...

    My B'port sits on 4 X 4's.
    There are shims under the corners of the mill to get it somewhere near level.

    Bill
  15. Motor hum most probably is drum switch problems....

    Motor hum most probably is drum switch problems.
    Try wiggling the handle a little farther than the detent position in forward to see if it make contact.

    Is this problem in the forward direction...
  16. Since this is a new to you machine, you should...

    Since this is a new to you machine, you should look over the condition of the keys in the Varispeed.
    The first clue is if the holes for the bolts to compress the spring don't line up with the...
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    Check each input power phase to X0 should be 120...

    Check each input power phase to X0 should be 120 Volts or so.
    Is the phase rotation correct? You will not get any output power if wrong.
    One bank of SCR's is for Fwd and the other for Rev.

    Bill
  18. This is a conversion I did awhile back using a...

    This is a conversion I did awhile back using a Parker 4 Quadrant control.

    43 10ee MG with Parker 514c-16 DC Controller

    My own RPC is a heavy 3 HP 1140 RPM motor with start and run caps.
    I just...
  19. The 2 transformers are used to BOOST the 440 to...

    The 2 transformers are used to BOOST the 440 to 550 with an open delta configuration.

    The item below the red label transformer is a bridge rectifier that will produce DC from AC

    The push button...
  20. Additional pictures needed: Good photos of the...

    Additional pictures needed:

    Good photos of the inside of this: The AC contactor, heaters, etc. have been completely bypassed by a push button on/off switch.

    The nameplate info and pictures of...
  21. With no capacitors installed, either direction...

    With no capacitors installed, either direction will work fine.
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    It looks like a transformer on the back of a...

    It looks like a transformer on the back of a Monarch EE.
    That is a 4 11/16" square junction box on the top of the transformer.
  23. It could have problems and is not drawing current...

    It could have problems and is not drawing current on 1 of the 3 phases. They normally just hum when this happens.

    You can easily cause more problems if you try it on 480 before finding out if it...
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    Several commentators here seem to have missed a...

    Several commentators here seem to have missed a major item in this line in post #3:
    3400 kWh / 720 = 4.722 KWH draw all the time (ignoring actual usage)

    "Ignoring actual usage" Meaning the...
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    Your numbers seem reasonable. The line...

    Your numbers seem reasonable.

    The line currents on a lightly loaded transformer are mostly reactive (KVAR) or watt less power.


    Reality check time:

    $0.15/KWH is only an estimate, Be sure...
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