Doc No. 740048
8
MODEL 96
TUBE TO TUBESHEET WELD HEAD
OPERATION MANUAL
4.0 ROTATION (SPEED) AUTO-CALIBRATION
(contd.)
Fig. 5
4.1 ROTATION (SPEED) MANUAL CALIBRATION
Follow the instructions on your power supply in making
adjustments to the potentiometer. Repeat this procedure until the
power supply indicates that the head is calibrated.
For power supplies that do not have auto calibration software.
Some power supplies do not have auto calibration software. In this
case, the weld head motor is manually calibrated by creating a weld
program that should rotate the electrode 360 degrees. ie:1 RPM for a
total of 60 seconds, 2 RPM for a total of 30 seconds, 3 RPM for
a total of 20 seconds, etc. Select a speed (RPM) and corresponding
time close to or equal to the speed that you intend on welding at to
achieve the most accurate calibration.
4.2
The power supply must be in the “TEST” mode. Create a one level
weld schedule at your selected RPM. Amperage and pulse rate
settings may be set to any value, as during rotation calibration no
arc will be established. Set rotation mode to “CONT” (continuous
rotation). Set rotation delay and down slope times to 0.0.
