CHAPTER 3: OPERATING INSTRUCTIONS
SERIES 300 FAST RESPONSE WELD HEAD SYSTEM
990-115
3-7
Table 3-2. Alphanumerical Screen Field Definitions
* Note:
Force accuracy of unit is only maintained if the head is calibrated in the same position as it is
used. Head is factory calibrated in horizontal position. This does not affect force
repeatability.
Field
Function
SCHEDULE: 000
Schedule number from 000 - 127. Use the [
▲▼
] keys or numerical keys to select a
different schedule number when in the RUN state.
WELD: 0000000
Weld counter. Increments each time a weld is completed.
FORCE: 2.0 lbs.
Tare force. Force required to keep the weld head electrode holder in the UPST
position. Tare force is not programmable.
POSITION: .000
inch
Current position of the weld head.
TIME: UPST
Rate at which the head moves toward or away from the upstop position:
FAST:
30 inches (76.2 cm)/second
MED:
8 inches (20.3 cm)/second
SLOW: 1 inch (2.5 cm)/second
POSITION: UPST
Upstop position is relative to 0.000, where the electrodes touch each other.
TIME: SRCH
Rate at which the head moves between search position and where the electrode
touches the weld material:
FAST:
0.5 inches (12.7 mm)/second
MED:
0.1 inches (2.5 mm)/second
SLOW: 0.05 inches (1.3 mm)/second
POSITION: SRCH
Search height position is relative to 000.0, where the electrodes touch each other.
TIME: SQZ
Time duration for force to build up to the WELD force.(50ms recommended)
TIME: WELD
Time duration for WELD. The start signal to the Power Supply is asserted for this
time period.
FORCE: WELD *
Force maintained for the duration of the WELD time, except for the interval during
which the follow-up force is applied.
TIME: DLY
Time interval from the start of the WELD period to application of follow-up force.
The optimal programming of this parameter to achieve good welds is important.
Refer to
The Importance of Follow-Up Force
in this chapter.
TIME: FWUP
Time duration of follow-up force. The optimal programming of this parameter to
achieve good welds is important. Refer to
The Importance of Follow-Up Force
in
this chapter.
FORCE: FWUP *
Follow-up force must be greater than or equal to WELD force.
Summary of Contents for 300 Series
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