gefran WPA-F User Manual page 7

Contactless magnetostrictive linear position transducer
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Explanation:
● Version of device parameter: it's a read only tag which defines the version of the parameter set
● Resolution: it defines the resolution for the position data, values allowed are: 0,5, 1, 2, 5, 10, 50, 100 um
● Filter mode: different types of filters on process data can be set by user:
- Disabled: no filter applied
- Simple average (FIR): only the number of samples corresponding to parameter "Filter nr. of samples" are considered
to define the process data; the filter method used on these samples is moving average
- Endless response average (IIR): not only the number of samples corresponding to parameter "Filter nr. of samples" but
also the previous data are considered to define the process output value
● Filter nr. of samples: it defines the number of samples used to filter the position data; values allowed are 2...16
● Velocity nr. of samples: it defines the number of position samples used to calculate velocity; values allowed are 2...16
● Velocity Unit: it defines the resolution of velocity data; values allowed are:
- 0: steps/1000ms
- 1: steps/100ms
- 2: steps/10ms
- 3: mm/s
● Output Direction: it defines the increasing direction of position and velocity data, values allowed are:
- Forward: it means that values increase positively from sensor head to the end of stroke
- Reverse: it means that values increase positively from sensor end of stroke towards the head
● Number of configured cursors: it defines the number of expected cursors on sensor stroke; this value will be responsible for
Position failure alarm in respect to the real number of cursors detected by the sensor; values allowed are 0...15 (corresponding
to cursors 1...16)
● Number of Cursors Alarm: it is possible to set an alarm referred to the number of cursors detected/configured; values allowed
are:
- 0: Number of cursors detected different than configured
- 1: Number of cursors detected higher than configured
- 2: Number of cursors detected lower than configured
- 3: Cursor alarm disabled
● Voltage Supply Alarm: the device measures its Voltage supply; it is possible to set an alarm referred to its level; values allowed
are:
- 0: Supply voltage higher or lower than limits
- 1: Supply voltage lower than limits
- 2: Supply voltage higher than limits
- 3: Voltage supply alarm disabled
● Position offset of cursor n: it is possible to define, for each of the possible 16 cursors, an offset value added to the
position value; the offset value is always expressed in um as an Int32
80715_MAN_WPA-F_WRA-F_03-2021_ENG
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