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Detector PC2003 - Introduction to PC2003 Amplifier; Peak Measurement Mode; Peak Controlled Measurement Mode

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Programming Manual
PC 2003 Amplifier
English
Page 2/14
PROPC2003EN – Index A
1. Introduction
Détector France congratulates and thanks you for having selected its PC2003
amplifier for your applications. After a brief presentation of the device’s
capabilities, this guide describes all the menus and functions you will encounter
during programming and use. For details about the sensor and its mechanical
mounting, please refer to the Integration and mechanical adjustment manual.
Don’t hesitate to contact us for additional information or problems, a technician
will answer your questions.
The PC2003 is designed to measure part length or diameters (depending on the
sensor type chosen) using an LVDT linear probe. Three measurement modes are
available: Peak , Peak Controlled or Realtime.
The Peak mode (default) can be described as follows:
1- During the passing of a part (spindle indexing), the sensor moves when it
comes in contact with the part.
2- The largest value (the sensor’s peak movement) is stored by the amplifier.
3- After the valid signal is sent by the machine at end of the cycle, the stored
value is compared to the reference value and the programmed tolerances.
4- The amplifier instantaneously triggers relays based on the results of its
comparison (good part, min. part, max. part or machine shutdown).
5- If the measured part is not within tolerance, the machine can be shutdown
using these relays. On the contrary, if the measured part is within tolerance,
the amplifier is automatically reset and awaits the next cycle.
The Peak Controlled mode differs only from the Peak mode because there is
another check (internal to the amplifier) to assure that the sensor is working
correctly:
The first stages (1 and 2) are the same until the valid signal.
3-When the valid signal is sent from the machine, the value stored in memory
is compared to the reference and to the programmed tolerances, but there is
also another check of the instantaneous position of the sensor (sensor value
at the time of the valid signal). This control will be correct only if this
instantaneous value is not within the defined tolerances at the moment of the
valid signal.
4-The amplifier instantaneously sends the results to the machine (control of
the stored value + control of the instantaneous value)
5-If the measured part is not within tolerance, the machine will be shutdown at
the end of the cycle and will show a bad part on the screen.
If the sensor does not come back to its initial position, so the instantaneous
value at the moment of the valid signal is still within tolerance, the machine
will stop at the end of the cycle and show defective sensor on the screen.
On the contrary if the 2 controls are Ok (peak measure within tolerance and
instantaneous measure at the moment of the valid signal not within tolerance)
the machine is not shutdown and the measurement is reset and will wait for
the next cycle.