ABB ACSM1 - Page 218

Parameters and firmware blocks
218
68.02 SYNC GEAR MUL FW block: SYNC REF MOD (see above)
Defines the numerator for the synchron gear function. The gear function modifies the position
alterations of the synchron position reference value in order to obtain a certain ratio between the
master and follower motion. See also parameter 68.03 SYNC GEAR DIV.
Example: Parameter 68.02 SYNC GEAR MUL is set to the value of 253 and parameter 68.03 SYNC
GEAR DIV is set to the value of 100. Gear ratio is 2.53, i.e. follower speed is 2.53 times the master
speed.
-2
31
…2
31
- 1 Numerator for synchron gear function.
68.03 SYNC GEAR DIV FW block: SYNC REF MOD (see above)
Defines the denominator for the synchron gear function. See parameter 68.02 SYNC GEAR MUL.
1…2
31
- 1 Denominator for synchron gear function.
68.04 SYNC GEAR ADD FW block: SYNC REF MOD (see above)
Selects the scaling factor for the gear ratio (defined by parameters 68.02 SYNC GEAR MUL and
68.03 SYNC GEAR DIV) during operation. The gear ratio is multiplied with the selected value.
-30…30 Scaling factor for gear ratio.
68.05 SYNC REF FTIME FW block: SYNC REF MOD (see above)
Defines the synchron speed reference filter time. The filter filters synchron reference disturbances
caused by encoder pulse changes. This parameter is used together with parameter 68.06 SYNCFILT
DLY LIM to minimise synchron speed reference disturbances.
Adjust parameter 68.06 SYNCFILT DLY LIM to maintain dynamic operation during fast reference
changes.
0…1000 ms Synchron speed reference filter time.
68.06 SYNCFILT DLY LIM FW block: SYNC REF MOD (see above)
Defines the maximum position difference between the unfiltered and filtered synchron speed
reference. If the maximum difference is exceeded, the filter output is forced to follow the filter input.
This parameter is used together with parameter 68.05 SYNC REF FTIME to minimise synchron speed
reference disturbances.
The unit depends on parameter 60.05 POS UNIT selection.
0…0.4 Maximum difference between unfiltered and filtered synchron speed
references.
68.07 SYNCHRON MODE FW block: SYNC REF MOD (see above)
Selects the synchronisation of the follower drive in synchron mode.
(0) ABSOLUTE Absolute synchronisation of the follower. The follower follows the
master position after the start.
(1) RELATIVE Relative synchronisation of the follower. Only master position changes
which take place after the follower is started are taken into account.
68.02 SYNC GEAR MUL
68.03 SYNC GEAR DIV
=
Follower speed
Master speed