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  • Users: funguy123
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  1. funguy123

    Camming and Constant Velocity Countoring Question

    I have a question on how to do the following application with 2 servomotors that are being controlled from the same motion controller: Imagine you have an elliptical shaped part rotating about an axis through it's center. This is being rotated at a constant velocity by servo #1. Then you have...
  2. funguy123

    Blown PLC Outputs for bidirectional control valves

    Having numerous 24VDC (rated @ 2A continuous) output cards that are going bad over the past year (a point or two will remain ON/OFF.) Cards are 3 years old. 16 point in 2 groups of 8 with. The outputs are 24VDC Solenoid Control valves (rated @ 1.25A with built in surge suppression). They...
  3. funguy123

    Looking for an encoder signal multiplier

    We have a customer who has a 512 counts/rev (A A\ B B\) encoder mounted to a rotating shaft. They have a custom PC HMI application that expects to see 2048 counts/rev for position tracking purposes. This application can not be reconfigured. Has anyone heard of an encoder signal multiplier...
  4. funguy123

    How to test an optical encoder in the field???

    If I have an industrial 24VDC incremental optical encoder with A and B channels in the field (say a dynapar/danaher encoder), how can I verify that it is working properly? Do I use an oscope and connect to the A and B channels to check that they are properly 90 degrees out of phase? Anything...
  5. funguy123

    Using a 24VDC SSR into a sinking PLC input...always on.

    I have a Phoenix Contact 24VDC Solid State Relay that I have a Sick Optic Photoeye wired to that is PNP. The contacts of the relay are switching 0VDC to the input of a PLC wired for sinking. The sensor is activating the relay transistor and is working fine. My issue is whether the Photoeye is...

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