Wintriss SmartPAC PRO Servo, User Manual

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1147100 SmartPAC PRO Servo User Manual
86 Chapter 4
– Initialization Mode
Table 4-2. Linear Sensor Setup Screen Field Definitions
Field Settings
SENSOR
RESOLUTION The smallest change the sensor can detect in its measurement
range. There are three linear sensor resolution options (displayed in
micrometers,
μm), which are dependent on the length of the sensor:
6- and 12-in. sensors 5
μm
18- and 24-in. sensors 10
μm
30-, 36-, 42-, and 48-in. sensors 20
μm
OFFSET VALUE A value added to the Upper Limit and Lower Limit readings on the
Ram Position screen in Program (see page 154) and Run (see page
179) modes that reflects the shut height opening of your press. This
corrected reading is used for all displays and settings.
The magnetostrictive transducer reports absolute distance, the
transdu
cer’s lowest position reporting zero, the highest position the
instrument’s maximum range. The absolute distance must be
modified by the Offset Value to represent the true length of the ram’s
vertical movement.
To determine the Offset Value, measure the shut height opening of
your press, using a dial gage if you want a precise display. From this
value subtract the reading displayed in the Lower Limit field on the
Ram Position screen in either Program or Run mode when the press
has been inched to its lowest position. The formula is
Offset Value = Shut height opening
– Lower Limit value
ZERO VALUE The
number of counts representing the sensor’s output at its zero
position. For an MTS sensor, this value should be at least 1,000
counts. For a Balluff sensor, this item should be set to zero (0).
UPPER LIMIT The highest value you can program as the Upper Limit on the Ram
Position screen in Program (see page 5-50) and Run (see page 6-22)
modes. This value should be set to the ram’s position at Top Dead
Center (TDC) and at the Upper Limit of its Shut Height adjustment.
The Upper Limit can be less than the maximum range of the linear
sensor.
UNITS The units in which the
sensor’s Upper Limit, Lower Limit, and Offset
Value are measured. There are two options:
IN Inches
MM Millimeters
To enter linear sensor Initialization settings, perform the following steps:
1. Select LINEAR SENSOR on the Main Initialization Menu. The Linear Sensor Setup screen
displays.
2. Highlight the UNITS item.
3. Press ENTER repeatedly until the unit you want is displayed, referring to Table 4-2 for available
options.