Dukane i220 User Manual page 74

iQ Series
Ultrasonic Integrated Press System i 220 User's Manual
Scan Stack
To scan the stack: Scroll to Free Run Frequency in
the displayed list and select the Scan Stack soft key.
Follow the displayed instructions.
See Figure 5-42 to the right.
When scan is complete, the scan results appear as in
the example shown in Figure 5-43.
For more detail on the Scan Stack feature please refer
to our website to download:
Application Note 512 at http://www.dukane.com/us/
DL_ApplData.asp
3) Freq Lock and Hold
When frequency lock and hold is disabled the fre-
quency of the stack is tracked by changing the fre-
quency of the ultrasound driving pulses to match the
feedback signal frequency.
When enabled the frequency of the feedback is
tracked until lock is achieved then it is ignored and
the ultrasound output remains at a fixed frequency
until the end of the weld.
Enable or Disable this feature.
4) System Freq Limits
Limits can be: Wide, Normal, Narrow, or Manual.
Wide - In wide mode the upper and lower fre-
quency limits are set to the maximum and mini-
mum allowed frequencies.
In Normal mode the upper and lower
Normal -
frequency limits equal the free run frequency plus
or minus 500Hz.
In Narrow mode the upper and lower
Narrow -
frequency limits equal the free run frequency plus
or minus 200Hz.
Normal, Narrow, or Wide - Enter Upper and
Lower Limits within prescribed frequency limita-
tions.
Manual -
In Manual mode the user sets the
upper and lower frequency limits. To be valid,
the settings must be within the maximum and
minimum values allowed and at least 25Hz
greater than the "upper" free run frequency and
25Hz less than "lower" free run frequency.
Manual - Enter Upper and Lower Limits
Page 66
Continued from Previous Page
Figure 5-42
Figure 5-43
Why System Frequency Limits Modes
Wide - This mode is primarily used for
testing "bare" transducers (no booster or
horn attached).
Normal - This mode is the one most often
used covering a wide variety of horns.
Narrow - This mode is used when the
acoustic stack has known unwanted fre-
quencies that are close to the main oper-
ating frequency.
Manual - This mode allows for a fre-
quency range to include only frequencies
that are wanted, and excluding unwanted
frequencies.
SCAN STACK
SCAN
PRESS SCAN TO TEST STACK FOR
OPTIMAL FREQUENCY, PRESS BACK
TO RETURN TO PREVIOUS SCREEN
BACK
PRE
POST
AMP WELD
WELD
WELD
Scan Stack - 1
FREQUENCY CHECK
SCAN
PRESS SCAN TO TEST STACK FOR
OPTIMAL FREQUENCY, PRESS BACK
TO RETURN TO PREVIOUS SCREEN
RESONANT FREQUENCY = 20096
BACK
PRE POST
AMP WELD
WELD WELD
Scan Stack - 2
NOTE
Might be Chosen
Dukane Manual Part No. 403-594-02
Online
ONLINE
LIMITS SETUP SETUPS OPERATE LIVE
ONLINE Online
LIMITS LIVE
SETUPS OPERATE
SETUP
Continued