Instruction Manual

10-10 Height Sensor
Z-Axis Velocity and Acceleration
The Z-Axis velocity and acceleration control the speed and acceleration of the lowering and
raising of the dispensing head during a height sense measurement. Adjusting the Z-Axis
velocity and acceleration can improve throughput by decreasing the time for a height sense
measurement.
? NOTE At the factory, Z-Axis velocity is set at 50.8 mm/sec (2.0 in/sec),
and Z-Axis acceleration is set at 7620 mm/sec
2
(300 in/sec
2
).
To adjust the Z-Axis velocity and acceleration in FMW and FmNT:
1. In the Main Window, click on Configuration.
2. Select Setup Height Sensor.
The Height Sensor Setup dialog box opens.
3. Enter values for Z-Axis velocity and acceleration.
4. Consult On-Line Help for assistance.
TIP A slow velocity of for example 25.4 mm/sec (1.0 in/sec) and a high
acceleration value of for example 7620 mm/sec
2
(300 in./sec
2
),
produce the most accurate height sensing measurements.
TIP Velocities above 50.8 mm/sec (2.0 in/sec) and accelerations above
7620 mm/sec
2
(300 in/sec
2
) can result in large repeatability errors.
See “Specifications” on page 10-13 for more information.