Lenze EVS9332xK - Manual (Page 217)

Function library
Function blocks
3.2.60 Limiting element (LIMPHD1)
3−189
l
EDSVS9332K−EXT EN 4.0
Function
An active speed limitation results in a position loss of the cam (e.g. compared with the master drive).
While the speed limitation is active (asynchronous status), the overflow buffer is being filled.
The overflow buffer is cleared again if the signal at LIMPHD1−DFIN is lower then the upper and higher
than the lower limit value.
l The speed limitation can be set via C1084/1 and C1084/2.
– The speed is limited to the set maximum value via C1084/1.
– The speed is limited to the set minimum value via C1084/2.
– The lower limit (C1084/2) must be smaller than the upper limit (C1084/1).
l LIMPHD1−NO−LIM = HIGH is used to switch off the parameterisable limitation. The speed
signal is limited to ±29999 rpm.
– If C1085 = 0 (Lenze setting), the overflow buffer is cleared. The position gets lost.
– If C1085 = 1, the overflow buffer is cleared. The increments at output LIMPHD1−DFOUT. The
position is not lost.
– Code C1085 is available from the software version 3.4.
l If LIMPHD1−RESET = HIGH, the overflow buffer is cleared. The input has the highest priority.
– The limitations set via C1084/1 and C1084/2 remain active.
)
Note!
The overflow buffer behaves according to the cycle of numbers (32 bits).