ABB ACSM1 - Page 246

Parameters and firmware blocks
246
67.03 INTERPOLAT MODE FW block: SYNC REF SEL (see above)
Selects whether the synchronisation reference selected by parameter 67.01 SYNC REF SEL is
interpolated or not. This function can be used to smooth out short breaks in the reference.
(0) NONE Interpolation is not used. The synchronisation reference is reflected
directly by actual signal 4.15 SYNC REF UNGEAR.
(1) INTERPOLATE The synchronisation reference is interpolated as shown in the diagram
below.
The synchronisation reference is sampled at intervals defined by
parameter 67.04 INTERPOLAT CYCLE. Signal 4.15 SYNC REF
UNGEAR is updated to the sampled reference value after one cycle.
67.04 INTERPOLAT CYCLE FW block: SYNC REF SEL (see above)
Interpolation cycle for synchronisation reference. Used if the drive does not receive a changing
position reference from the synchronisation reference source. During the cycle, the drive calculates
an internal synchronisation position reference according to the previous cycle reference delta. After
the cycle, the drive updates the new value to signal 4.15 SYNC REF UNGEAR.
See also parameter 67.03 INTERPOLAT MODE.
1…10000 ms Interpolation cycle.
67.10 VIRT MAS SPD REF FW block: SYNC REF SEL (see above)
Defines the virtual master speed reference when parameter 67.02 VIRT MAS REF SEL is set to (9)
VM SPD REF.
-30000…30000 rpm Virtual master speed reference.
Synchronisation
reference
67.04 INTERPOLAT CYCLE
4.15 SYNC REF UNGEAR