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4.7
Resetting the System
During powerup, you can restore the weld parameter values to their Cold
Start (factory-set) values. Press both the FAST UP and FAST DOWN
switches until the welder displays "coldstrt" and goes to Time mode. This
will set Weld and Hold Time to 50 ms (the minimum value) and disable
AB Delay, AB Time and all limits. This procedure also functions if you
have activated. Display Lock.
4.8
Ultrasonic Test
Use the TEST switch on the front panel to measure the ultrasonic energy
dissipated by the stack in air, as long as the welder does not overload.
When a welder is operating correctly, the power dissipated by one specific
stack in air should be consistent (±10%) over a long period of time. Any
change in power indicates that a problem could be developing.
If an overload occurs, and the stack is known to be mechanically sound,
the welder may require manual tuning. (For further information, refer to
Section 4.4 "Manual Tuning.")
To test the welder, make sure that the stack is properly assembled and that
all connections have been made correctly. Then press TEST.
Caution:
You must have
converter-booster-horn stack installed in
your welder before activating ultrasonic energy.
Warning:
Ensure that the cover is closed with door screws secured
and that no one is in contact with the horn when you
press TEST. Automated systems users should turn-off
indexing equipment. for this test.
Ultrasonic energy will remain on as long as TEST remains pressed and the
welder does not overload. Pressing TEST causes the POWER BARGRAPH
to switch to the DIP Switch-selected multiplier (for further information,
refer to Section 3.9 "DIP Switches"). After 4 to 6 seconds, the Autotune
feature is disabled and the welder enters manual tuning mode (for further
information, refer to Section 4.4 "Manual Tuning"). From this point on,
tuning is controlled by the tuning potentiometer.
Operation
4-30
9001W+
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