Lenze EVS9332xK - Manual (Page 357)

Function library
Function blocks
3.2.102 Welding bar control (WELD1)
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l
EDSVS9332K−EXT EN 4.0
3.2.102.6 Weld1 mode: Distance with saving (C1446 = 2)
The value at the input WELD1−TIME is interpreted as a distance. WELD1−TIME is saved for the further
cycle when phase 2 of the profile is started (see basics of welding bar control).
Output of status information
l WELD1−T−ERR = HIGH: The total length and the sum of times of the three sections
WELD1−LEN−C (close), WELD1−TIME (weld) and WELD1−LEN−O (open) do not agree. The
reasons may be as follows:
– Wrong profile selection
– Line speed too high
In this case the welding time is automatically reduced to avoid a disturbance of the motion sequence.
l WELD1−DIR−ERR = HIGH: A negative master angle is assigned to the input WELD1−XIN.
Remedy:
– Invert master angle
– Invert direction of rotation of the welding bar drive at the function block CCTRL.
l WELD1−ON = HIGH: Welding phase is active
0 WELD1−TIME is "frozen" when phase 2 is started by setting C1446 = 2 (distance with saving).
The distance WELD1−TIME" remains constant for the cycle.