Entron EN1000 series, Installation And Operation Manual, Page: 47 / 131

Page 45
For example: if the steady state line voltage is approximately 480 VAC, do not program
[
.!.!
] until the line voltage is as close to 480 VAC as possible.
If nominal set point value is too low or too high compared to nominal voltage level, the
Control will display one of the following errors:
[
0!X!
] = 17 AVC nominal set point voltage is too low, compared to nominal
voltage level;
[
0!X!
] = 18 AVC nominal set point voltage is too high, compared to nominal
voltage level.
To clear these errors, simply press any push button. If either of these two errors occur during
[
.!.!
] programming, the Control will not enable AVC, i.e.[
.!.!
] will remain zero.
If AVC is enabled, the Control monitors relative line voltage changes from the nominal set
point. If the Control detects line voltage changes, it will average these values. When the
control is initiated to weld, it compares nominal relative voltage and measured average
values to make a correction in the firing angle used for the weld, i.e. to compensate for any
line voltage changes.
For [
.!.!
] values of 10 to 31, the threshold values determine a window within which error
messages are not triggered. These values are valid for any voltage level from 110VAC to
575VAC, since the Control uses nominal set point. Any time when [
.!.!
] is reprogrammed,
nominal voltage set point will be reset.
If the line voltage surpasses the threshold, the Control will display an error announcing that
the line voltage threshold has been exceeded. If measured average voltage is lower than low
window (nominal set points minus threshold), or higher than high window (nominal set
points plus threshold), the Control will display one of the following errors:
[
0!X!
] = 19 average voltage is below low window (below nominal set point
minus threshold);
[
0!X!
] = 20 average voltage is above high window (above nominal set point plus
threshold).
To clear these errors, simply press any push button.
Several Process Outputs may be programed for AVC and VM. If either error 19 or 20 occurs,
the Control will continue or stop the sequence depending on [
;!:!
] values.
[
;!:!
] = 12 Display Error for 30 cycles (0.5 second) and continue with
sequence. Valve 3 is off.
[
;!:!
]= 10, 13, or 17 Display Error, turn ON the Valve 3 for 30 cycles (0.5 second)
and continue with sequence.
[
;!:!
] = 14 Display Error, turn ON the Valve 3, and STOP the sequence.
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