Entron EN1000 series, Installation And Operation Manual

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Page 66
Figure 6.1 Non Repeat sequence
Figure 6.2 Repeat sequence
In this example, pulsation is shown after Cool, until the number of Impulses has elapsed,
then moving to Hold. Hold time is when the electrodes are closed with no current present,
but the selected valve will still be energized. Since this in a Non-Repeat sequence, there is
no Off time mentioned. The valve will automatically de-energize at the end of the
programmed Hold time.
6.2.2 REPEAT -
CODE [
"#
] IN CYCLE MODE
When any of the 50 possible Schedules, having a cycle mode setting of [
"#
], is initiated by
a pilot switch the sequence is as shown in the following diagram, Figure 6.2.
In this example, the sequence is much the same as the previous example with the exception
of no Impulse welding. If the initiation (Foot Switch) is held closed until after the Off time,
the control will move to the beginning of Squeeze time and REPEAT the scheduled
sequence.
Each individual sequence intended to REPEAT must be programmed separately for a
CYCLE MODE [
"#
] to perform a REPEAT function.
6.2.3 CHAINED MODE -
[
"$
] IN CYCLE MODE
Scheduled sequences may be CHAINED, resulting in a weld sequence made up of several
Schedules in length. A CHAINED sequence can be programmed by entering [
"$
] in CYCLE
MODE. The last scheduled sequence must be a CYCLE MODE value of [
""
] (Non Repeat),
[
"#
] (Repeat), or [
"%
] (Successive).
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