LOGIX si OVERVIEW. The Logix si is a two-wire, mA input digital valve positioner. The Logix si positioner controls single-acting actuators with . Mounting of the Logix si Positioner on a Linear Pneumatic Actuator. ( NAMUR / IEC document describes the setting and use of the Logix si. Available Logix + Models. Part of the versatile Logix positioner series the Logix + and Logix + digital positioners fulfill the ever growing.
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The minimum input signal required to function is 3,6 mA. O-rings, screws, low temp. Digital command mode – The analog mA input signal is ignored in this mode and a handheld or Flowserve supplied software is needed to change the position command. See the logis for an explanation of the various light sequences.
Logix 500si series Digital Positioners Operation Maintenance
loyix Version Number Checking Logix si Status Condition Codes Colors Identifier Indication and resolution R – – – Any sequence starting with a red light indicates that there is an operational problem with the unit. When installing Logix si intrinsically safe, 510ai consider the information on page Tight shutoff MPC Minimum position cutoff is active 4. Logix si Status Condition Codes Colors Identifier Indication and resolution Y – – – Any sequence starting with a yellow light indicates that the unit is in a special calibration or test mode, or that there was a calibration problem.
Never connect a voltage source directly across the positioner terminals.
The grounded scrrew must not be used to termingate signal shield wires. Normally this will be 4 mA, but if split range operation is required use the minimum current for the desired operating range. South Africa Saudi Arabia Telephone: Valve with actuator valve stroke is matched with the actuator stroke.
To prevent distortion of the HART communication, cable capacitance and cable lpgix restrictions must be calculated.
Flowserve Logix si Manuals
Products not manufactured from stainless steel are provided with an epoxy resin coating. The Logix si digital positioner can be equipped with an additional limit switch unit. When the lights return to a sequence that starts with a green light the calibration is complete.
If an elevated zero is needed a handheld or other PC based configuration software is required. This communication signal is superimposed on the DC mA current signal. Note that the valve will be locked at its position when an input loop calibration is initiated until the calibration is completed.
This can also be caused by over tightened packing, very sticky packing, or very high gain settings. Compliance with other, not particularly emphasised notes, with regard to transport, assembly, operationand maintenance and with regard to technical documentation e.
Adjust the actuator to mid-stroke. The stroke feed-back is realized by a follower arm and stem clamps. Now connect the air supply to the filter, which is connected to the Logix Series positioner.
Wiring and grounding guidelines A coalescing filter should be installed in front of the supply air connection Figure 8. Note that the loop must be externally powered with a voltage between 12VDC and 40VDC and a current meter used to measure the current in the loop.
Set the switching point of the limit switch by adjusting the cam of the upper switch. This could cause permanent circuit board damage. Don’t show me this message again.
Flowserve Logix si Digital Positioner Actuator siw1dse | eBay
Off Forces the positioner logiz use one of the factory preset tuning sets determined by the rotary Gain selector switch. Between actuator and valve there are moving parts.
For units installed in Hazardous areas special installation caution and procedure is required.
Cycle power and complete a Quick-Cal if needed. Additionally, the electrical conduit should be earth grounded at both ends of its run. A reset will cause the loss of other data. Country specific regulations may apply.