The pressure transducer installed on the system is a Setra model C206 that has a pressure range of 0 to 250 psi and an output of 4 to 20 ma.

An SMC ITV2050-31T2S4 servo-valve will be used to control the pressure. This valve is 0-130 psi with a 0-10V input.

Now we go to the “Auto Sets” screen and with the RUN/PROG switch in PROG hit the “CONFIGURE” softkey. After typing the configuration code, we press the “CONFIGURE AIR” softkey.

Since the hydraulic overload is wired in at “AS7", if the slot reported on the screen in not already “AS7", we hit the “NEXT AIR SLOT” softkey until it is. The hardware detected should be “0 - 10 Volt Out”.

The first thing we must configure is the “Name” of the system. The cursor should already be on the “Name” line so we check to see if the name is already “Hydraulic Overload". If not, the “CHANGE NAME” softkey allows us to cycle through the systems.

Using the arrow keys, we move the cursor to the “Transducer Type” line. Looking at table 4.1, we see that the transducer type for any model pressure transducer with a 250 psi pressure range and a 4 to 20 ma output is “Type 3". We hit the “CHANGE TYPE” softkey select Type 3 from the list that appears. When the proper type is selected, the “Air Pressure” line should change to read the pressure currently in the hydraulic overload system.

Next we use the arrow keys to move the editing cursor to the “Maximum Pressure” line. From the information we already gathered, we enter 80 psi.

Going to the “Minimum Pressure” line, we enter 20 psi.

“Max. Trip Point” should be the tonnage trip point at the Max Pressure (80 psi in this case) so we enter 400 tons. Note that units to the right of the number are also an editable parameter. When the editing cursor is placed on the Max Trip Point units, we can press the “CHANGE UNIT” softkey to get a list of supported units. The units can be pounds, kilograms, tons, or metric tons. A hydraulic overload will typically use tons and that is what we select. Note that the units for minimum and maximum trip point will always be the same, but will not necessarily be the same as the “Display Trip As” units. This allows us to enter the minimum and maximum trip points in whatever units the name plate uses, but operate the press in a different set of units.

“Min. Trip Point” should be the tonnage trip point at the Min Pressure ( 20 psi in this case) so we enter 100 tons.

The “Display Trip As” units we set to tons.

The “Fault Time” we leave at 20 seconds.

The “Valve Type” is set to “6". This value comes from table 4.2 for the type of servo valve we have.

The “Tolerance” is left at the default 2 psi.

April 17, 2000 Man ual Versio n 1.0

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SMC Networks 5000 manual April 17, 2000 Man ual Versio n

5000 specifications

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