Toledo PWi Forging, User Manual

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PWi Forging User’s Manual
Doc #17663 Rev A Page
Toledo Integrated Systems
69
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Calibration Procedure
Use the following steps for proper load calibration of the PWi Forging unit.
1) Put the PWi Forging in Setup Mode (see page 33 for details).
2) Set Press Capacity
A)
Enter the Configuration mode by toggling Dip-Switch 1 to the down position (see page 28 for
location of Dip-Switch 1).
B)
Use the or buttons to navigate to the Capacity menu.
C)
Enter the press capacity for the total and each channel. Refer to the Capacity Menu section on page
53 for more detail.
3) Balance the Tonnage Sensors
A)
Make sure the press is under no load.
B)
Use the or buttons to navigate to the Calibration menu.
C)
Open the PWi Forging enclosure and locate the Balance and Gain pots on the Analog Board (see
Figure 1.7 and Figure 1.8).
D)
Adjust the balance pot for CH1 until the balance value for channel 1 reads zero. Turn the pot
clockwise to increase the balance value and counter-clockwise to decrease the balance value.
E)
Repeat for each of the remaining channels.
4) Find the Shut Height of the Press
A)
Jog the press until the ram is at bottom dead center (BDC) or 180º without any load cells or die in
the press.
B)
Determine the amount of spacers needed with your load cells. Cycle the press without load cells to
insure correct height.