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  1. FiestaEng

    Parker Proportional Valve not Working at Lower Pressures

    With ED4 disconnected, we monitor pressure from PP5. 30% of 200 bars would put us at 60 bars which is where we see it start to react. This supports my theory that this set-up will not work no matter what I try to do with it. The flow is minimal, basically just pressurizing the cylinder at a...
  2. FiestaEng

    Parker Proportional Valve not Working at Lower Pressures

    We recently installed a Eurotherm 3508 controller, a Parker PCD00A Amplifier with two Denison R4R03 and Parker VP01 Sandwich valve assemblies. It is a horizontal press that closes initially at 100 bars and ramps up from there to a maximum of 240 bars. That part of it works fine. The second...
  3. FiestaEng

    Need identification of shuttle or sequence valve

    Thank you Oldhydroman
  4. FiestaEng

    Need identification of shuttle or sequence valve

    I am working on a hydraulic system for a press. The drawing states there are three sequencing valves in the system. They show their location and we were able to remove one from the block that we suspect may be bad. Problem is we are having trouble finding one and I am hoping some one out...
  5. FiestaEng

    First pass - OSR

    Ok, so I looked into it further and found one other use of the B3:0/1. Way down in the program, B3:0/1 is used as one way another bit is unlatched. So it looks like nothing happens the first scan; second scan gets the bit unlatched; and the third scan the whole program is looked at it. Does...
  6. FiestaEng

    First pass - OSR

    I am trying to understand and will be cleaning up a AB ladder logic program. The first rung has; |----- NOT S:1/15 ------- OSR B3:0/0 -------------------------- ( B3:0/1) --------| B3:0/1 then turns B3:0/2 on and holds itself on with a branch around B3:0/1 Most, if not all, rungs are then...
  7. FiestaEng

    Gravity Conveyor

    gatech50, if they're Homer Laughlin (American made) dishes, go with the steep angle. You'll be supporting the economy and we can always use the business. Seriously, the dishes could add significant weight and if you get them moving they will 'crash' at the end. I would take the advice of...

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