Entron EN1000 series, Инструкция по установке и эксплуатации

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Page 65
CAUTION
KEEP HANDS, ARMS, OTHER PORTIONS OF THE BODY, CLOTHING, AND
TOOLS AWAY FROM THE MOVING PARTS OF THE MACHINE
.
3. Program the schedule for the part to be welded. Place the work in the machine and set
the WELD/NO WELD switch (both on control panel and any EXTERNAL WELD/NO
WELD switches) to the WELD position. The machine is ready to weld.
4. If no standards have been set, it is recommended to use a short weld count for initial
setup and welding. Weld count can be increased, the percent current can be adjusted,
and welding transformer tap (if applicable) can be increased for the best weld.
The most
efficient use of the control and welding machine will generally be made at the lowest
welding transformer tap, the highest percent current setting and the shortest weld
count.
5. For repeat operation, program CYCLE MODE to [
"#
] , and program OFF count to
allow sufficient time to reposition the part for subsequent welds.
6.2 CYCLE MODES
The EN1000/EN1001 can be programmed to operate in several operating modes. They are:
Non-Repeat, Repeat, and Successive. Each of the 50 possible schedules has a cycle mode
parameter that dictates the sequence of events that will follow an initiation.
The cycle modes are as follows:
[
""
] = Non-Repeat
[
"#
] = Repeat
[
"$
] = Chained
[
"%
] = Successive
[
"&
] = Conditional Successive
[
"'
] = Wait-Here
The CYCLE MODE parameter is entered into a schedule when the control in the
“Program”(23) mode with the “CYCLE MODE” LED (16) is illuminated.
6.2.1 NON 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 executes as shown in the Figure 6.1 (depending on the
programmed parameters).
Upon initiation, the programmed valve is energized at the beginning of Squeeze. If the
Pressure Switch is “open” the control counts through the Squeeze time but does not begin
counting Weld time until the Pressure Switch closes. If the Pressure Switch remains open
the SQUEEZE LED will flash. Once the Pressure Switch closes, the Weld time begins.
Weld current is then supplied to the welding transformer at a value programmed by the
PERCENT CURRENT for a duration programmed in WELD.
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