FX-316 positioning servo driver with PCM-11 personality module

Description

The goals FX-316 of calibration are:

• To determine the endpoints of mechanical stroke.
• Help the plant set up the LVDT for optimum performance.
• Perform the calibration quickly to avoid startup delay

Calibration is required after the following:

• After a mechanical overhaul

If the mechanical stroke remains the same after the overhaul, and the same

LVDT is installed, simply adjust the LVDT so the FX-316 position feedback on the

Ovation system indicates 0% (with the valve fully closed), then tighten down

the LVDT assembly (that is, return to its former position).

• After the LVDT is changed

Calibration is required to fifind the null point and proper demodulator gain

adjustment. However, if it is the same model, time FX-316 can be saved by entering the

same constants before running the calibration sequence.

• If a secondary wire pair is swapped

The valve positioner is not affected because the demodulator is a diode

rectifying type. Also, the secondary pairs (A and B), can be swapped. The result

will be a change in sign of the calibration values. Arithmetic in FX-316 valve positioner

fifirmware will yield the correct result. However, the user should follow the

recommended hookup that will yield negative values at 0% and positive values

at 100%, and avoid confusion.

1. Access a turbine valve graphic. The turbine valve graphic shows a list of all the

turbine valves.

2. Click on the desired valve symbol to display the VP calibration graphic (see

Figure 25-3) and show the constants associated with that particular VP and

valve. This graphic is provided with the project graphics. Customizing of the

turbine valve graphic and VP calibration FX-316 graphic is not in the scope of this

document.

3. Perform the desired calibrations. All the calibration procedures cause the VP to

enter local mode. While the VP is calibrating in local mode, VP fifirmware

adjusts target demand accordingly. The Controller unconditionally tracks the

VP when it is in local mode.

Why are the prices of many products of our company more competitive?
(1) Source purchase to reduce the price difference in the intermediate phase
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Lead time problem
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Xiamen Xiongba adheres to the enterprise philosophy of “improving the value of spare parts supply chain”,
For the simple purchase procedure of spare parts, ensure that they are delivered to the site in a timely manner, and help users reduce the risk of downtime caused by the shortage of spare parts
The emergency spare parts support service is complete, and the user can customize the spare parts. The quality of the spare parts is reliable. All the spare parts provided enjoy a one-year super long warranty
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