Sonics GXL - Manual (Page 21)

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I N S T R U C T I O N M A N U A L • M O D E L G X L P O W E R S U P P LY
20
will display “02.00 sec,” with the “sec” flashing, along with whatever energy
was delivered. The peak power delivered (%Pmax) will be displayed as a
percent of the supply rating.
The ability to specify Time, Energy and Distance affords maximum control of
the weld process. However, when entering your specifications in the various
menus described below, keep in mind that the settings from previous use
remain in effect until you make a change and use the Enter key to register a
new value. This means that if you want to achieve a weld time of 2 seconds,
for example, you will need to ensure that other entries in the Energy or
Distance menus will allow a 2-second weld before an Energy or Distance
setting is reached (and ultrasonics are terminated).
TIME SETTINGS
There are five time parameters, or timers, that can be set. They are accessed
by pressing the Time key which allows specification of the following time
parameters. The first menu display will show the following:
Weld Time – sets the duration of time for which ultrasonic vibrations are
applied to the parts. A time value must be entered in order to weld.
Press the Time key again (and successively after each menu display) to
advance to these next screen displays:
Hold Time – sets the duration of time for which pressure is maintained to
ensure proper bonding of the parts, after the actual weld time and with
ultrasonics off. (This allows the weld to cool.)
Delay Time – sets the duration of time allotted for pressure to build up after
the parts have been contacted and before the application of ultrasonic
vibrations to the horn. (“Delay Timer” must be selected as the trigger mode
– see page 25 – and a value equal to or greater than 0 must be set.)
Afterburst Time – sets the duration of time for another application of
ultrasonic vibrations to the horn (for “shake-off”) to ensure that the parts
being assembled do not adhere to the horn.
Time Limit Low – sets the low time alarm examination point (as a tolerance
limit). A time alarm will be triggered if the actual weld time is less than this
value. By specifying values for this limit and the Time Limit High, a weld time
“window” is created that defines a ”good weld.” (If no alarms are triggered –
the weld cycle occurred within the designated time limits.)
Time Limit High – sets the high time alarm examination point. A time alarm
will be triggered if the actual weld time is greater than this value.
NOTE: A review of
the Basic Weld Cycle
Time Line on page 52
gives additional
information on how
the weld cycle and
settings operate.
NOTE: If no time is
set, an error message
(“Set Weld Timer”) will
display prompting a
parameter entry.
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