Dukane DPC II Plus 9001:2000 - Manual (Page 86)

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Dukane Manual Part No. 403–566–01
DPC ™ II Plus and EZ Welder System – User’s Manual
3. If DISABLE was selected in the AUTO STOP
menu, the TRIGGER TYPE menu is displayed
next. This selects whether the trigger which
initiates the weld cycle is momentary or must
be maintained throughout the weld cycle.
4. The SINGLE PRESSURE mode follows the
same programming sequence as Weld Method
in the previous Timed Auto Probe. The
DUAL
PRESSURE mode eliminates ground detect for
obvious reasons and allows welding by Time
or Energy at both pressure level settings.
Initiate Mode
When using a press, the usual choice is to select
MANUAL for the Initiate Mode. This permits the
dual palm switches to initiate the operate sequence.
If
AUTO mode is selected, then an external initiate
signal must be supplied to either pins 3 and 4 (Iso
Oper In) or pin 8 (Sw Oper In) of the HD–15 Sys-
tem In connector. Refer back to Figure 5–2 and
Table 5—I for more information.
Auto Stop
The normal configuration when using a press is
to set Auto Stop to
DISABLE . This permits the stan-
dard emergency OFF switch on the front of the
press base to halt the weld cycle. If Auto Stop is
set to
ENABLE , then an external signal must be
supplied to pin 9 (Iso Auto Stop) of the HD–15
System In connector. Refer back to the discussion
under Figure 7–13 and also to Table 5—I for more
detailed information.
Head Up On Auto Stop
If DISABLE was selected in the AUTO STOP menu,
the HEAD UP ON AUTO STOP menu is bypassed. If
ENABLE was selected in AUTO STOP , the HEAD UP
menu is displayed. It offers two choices for head
position. If
ENABLE is selected for the Head Up op-
tion, the head retracts when an Auto Stop signal is
detected. If the
DISABLE option is selected, the press
head remains stationary after an Auto Stop signal.
Note that this option and Auto Stop are only avail-
able when the Initiate Mode has been set to Auto.
Trigger Type
If DISABLE was selected in the AUTO STOP menu,
the TRIGGER TYPE menu is displayed next. Other-
wise it follows the HEAD UP ON AUTO STOP menu.
If MOMENTARY is selected, the trigger switch
is ignored after the first contact closure. The
DPC external bus scan time is 1 msec so the
minimum signal duration is >1 msec. If the
trigger switch opens after the weld cycle is
initiated, the welding processes continues nor-
mally. Momentary is recommended for most
welding processes except hand probes.
If
MAINTAINED is selected, the trigger must
be maintained during the entire portion of the
weld cycle. If the trigger signal is momentarily
lost while the ultrasonic signal is on, the weld
cycle is terminated. This mode is recom-
mended for special applications. It has an ad-
vantage over momentary trigger in that it will
generate a
TRIGGER LOST error message if you
suddenly lose trigger force (see Error Messages
in Section 12 – Troubleshooting). This may hap-
pen when welding soft plastic or small parts.
Single/Dual Pressure Mode
The SINGLE PRESSURE mode has the same pro-
gramming sequence as Weld method in the pre-
vious Timed Auto Probe. The
DUAL PRESSURE
mode eliminates ground detect and allows Time
or Energy target values to be used at both pres-
sure trigger points. The modes can be mixed us-
NOTE
The word AUTO in the menu options is short
for Automation not automatic. Any menu that
contains the word AUTO means the DPC II Plus
will require an external signal(s) from custom
automation equipment for correct operation.