Entron EN1000 series, Installation And Operation Manual

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Page 68
[
"$
] CHAINED : The SCHEDULE SELECT display will increment by one and
continue as explained in CHAINED Mode.
[
"%
] SUCCESSIVE : The sequence will end as if it were in NON REPEAT mode. The
SCHEDULE display would then be incremented by one to next
Schedule as in SUCCESSIVE Mode but not start that sequence until
the next initiation. By using [
"%
] at the end of CHAINED
SEQUENCES, extremely complicated sequences can be generated.
The SCHEDULE Display will display the Schedule number of the
last Schedule per 1.
[
"&
] CONDITIONAL SUCCESSIVE :
The sequence will start over at the initiated sequence.
[
"'
] WAIT-HERE :
The sequence will wait for FS7 or FS11 initiation input.
When Hold and Off in the first SCHEDULE of a chained sequence and Squeeze in the
second of the chained sequence are all programmed to 00 cycles, the sequence will jump
directly from the end of WELD Time of the first SCHEDULE to the beginning of WELD
Time in the following SCHEDULE, without any interval between the two WELD Times
(continuous weld current). This sequence allows two different weld currents to be
introduced with one immediately following the other.
The SCHEDULE number displayed at the end of a CHAINED SEQUENCE depends on the
EXTENDED FUNCTION [
=!=!
] INTERNAL/EXTERNAL. If it was programmed in the
EXTERNAL mode, the SCHEDULE number displayed will be controlled by the
combination of SS1, SS2 (See Section 2.1 CONTROL FUNCTIONS/SCHEDULE
NUMBER SELECTION). If it was programmed to the INTERNAL mode, the SCHEDULE
number will be the last number entered using keys (21) and (20). The number displayed
need not be the first number in a sequence of CHAINED SCHEDULES. For example, if
SCHEDULES 01, 02, 03 and 04 are chained together and we select SCHEDULE 02, after
initiation the sequence would be as follows: SCHEDULE 02, 03 ,04 and at the completion
of SCHEDULE 04, the SCHEDULE Display would read 02., and not the first SCHEDULE
01. See section 5.4 EXTENDED FUNCTIONS and section 5.4.3 SCHEDULE SELECTION.
6.2.4 SUCCESSIVE MODE -
[
"%
] IN CYCLE MODE
SUCCESSIVE MODE can be thought of as a CHAINED schedule being initiated one link
(or step) at a time. When the first SCHEDULE of a SUCCESSIVE series is initiated, it will
sequence as in NON REPEAT. At the completion of the SCHEDULE the SCHEDULE
Display will be incremented by one and the control will return to the READY state.
For example, if the control is programmed with a SUCCESSIVE series consisting of the
SCHEDULES 01, 02, and 03 (01 and 02 being programmed as SUCCESSIVE SCHEDULES
and 03 being programmed as a NON REPEAT SCHEDULE) and the SCHEDULE SELECT
display is manually set to 01 and the control is initiated, the sequence of events will be as
follows; the control will sequence through SCHEDULE 01 and then increment the
SCHEDULE Display to 02 (flashing) and wait for the next initiation.
An initiation at this point would start SCHEDULE 02. After SCHEDULE 02 was
completed, the SCHEDULE Display would then increment to SCHEDULE 03 (flashing).
After the next initiation SCHEDULE 03 will be completed and the SCHEDULE Display will
again show SCHEDULE 01.
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