Lenze i950

7.15.3 Diameter hold
If the line velocity does not correspond to the circumferenal speed, the diameter cannot be
c
alculated from the line speed and the motor speed. In this case, the calculated diameter
moves in direcon d
max
or d
min
, depending on the winding direcon. Bit 21 is set when the
diameter is being maintained, but not when the line speed signal does not correspond to the
circumferenal speed. The bit is set in parameter Status signals = TRUE. 40x5050:110 Bit 21
Bit 21 is set to TRUE in the following cases:
•
Actual line v
elocity in [mm/s] < Min. line velocity in [mm/s].
•
Actual line velocity40x5051:009
•
Min. line velocity40x5051:013
•
In the states:
•
STOP
•
ERROR
•
READY
•
JOGGING
•
SYNCLINEVEL
See parameter Technology applicaon state. 40x5051:001
For the user-side maintenance of the diameter, control bit 21 of parameter Con
trol signals has
to be set to TRUE. 40x5050:010 Bit 21
Relevant parameters of other funcons
Address Designaon Default seng Seng range
0x5051:009 Actual line velocity x.xxxx mm/s (Read only)
0x5051:013 Min. line velocity 1.0000 mm/s -214748.3648 ...
214748.3647
mm/s
0x5051:037 Winder speed x.xx rev/s (Read only)
Conguring the "Winder Dancer" TA
Monit
oring
Diameter hold
148