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I have MACH3 speed regulation 300 watt speed control sucks

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    I have MACH3 speed regulation 300 watt speed control sucks

    I have one of speed controller and I am not impressed with it speed control any ideas how to improve it preforms

    This is not the seller that I bought this item from

    https://www.ebay.com/itm/1PC-Engravi....c100290.m3507

    I have tried to a 500 ohm resistor between the two input and 1k ohm resistor on the positive input wire its response is a little bit better but not what I expect it to be of the PWM because the one seller has the input 3 to 12 volts another one seller has the input as 0 to 5 but nether one seems to work right

    But the resistor that is on the optic sensor is 470 so I assuming that it is really 0 to 5 volts but the Arduino Nano PWM output is 0 to 12 volts at M3 S1200 this value is at full speed
    Last edited by sam_sam_sam; 09-07-2020, 01:11 PM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    #2
    Re: I have MACH3 speed regulation 300 watt speed control sucks

    Well I found out by doing some research that this speed controller has frequently of 1 to 10 HZ. and apparently the Nano is running 490 HZ this would partially explain the problem that I am having most of the seller for this item do not put the operating HZ the device is
    Last edited by sam_sam_sam; 09-08-2020, 07:13 AM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

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