ABB ACS560 - Page 349

Parameters 349
76.70 PFC autochange Defines the way the autochange is triggered.
In all cases except Even wear, the start order is moved one
step forward each time the autochange occurs. If the start
order initially is 1-2-3-4, after the first autochange the order
will be 2-3-4-1, etc.
For Even wear, the start order will be determined so that the
running times of all motors remain within the defined limit.
Note: Autochange only occurs when the speed of the drive is
below the speed defined by parameter 76.73 Autochange
level.
See also section Autochange on page 128.
Not selected
Not selected Autochange disabled. 0
Selected Rising edge starts the autochange if autochange conditions
are met.
1
DI1 Autochange triggered by the rising edge of digital input DI1
(10.02 DI delayed status, bit 0).
2
DI2 Autochange triggered by the rising edge of digital input DI2
(10.02 DI delayed status, bit 1).
3
DI3 Autochange triggered by the rising edge of digital input DI3
(10.02 DI delayed status, bit 2).
4
DI4 Autochange triggered by the rising edge of digital input DI4
(10.02 DI delayed status, bit 3).
5
DI5 Autochange triggered by the rising edge of digital input DI5
(10.02 DI delayed status, bit 4).
6
DI6 Autochange triggered by the rising edge of digital input DI6
(10.02 DI delayed status, bit 5).
7
Timed function 1 Autochange triggered by timed function 1 (bit 0 of 34.01
Timed functions status (see page 273)).
8
Timed function 2 Autochange triggered by timed function 2 (bit 1 of 34.01
Timed functions status (see page 273)).
9
Timed function 3 Autochange triggered by timed function 3 (bit 2 of 34.01
Timed functions status (see page 273)).
10
Fixed interval Autochange is done when the interval determined in the
parameter 76.71 PFC autochange interval
has elapsed.
11
All stop Autochange is done when all the motors are stopped.
The PID sleep feature (parameters 40.43 Set 1 sleep level …
40.48 Set 1 wake-up delay) must be used for the drive to stop
when the process demand is low.
12
Even wear The running time of the motors are balanced by the drive.
When the difference in running time between the motors with
the least and most running hours exceeds the time defined by
parameter 76.72 Maximum wear imbalance, the autochange
occurs.
The running hours of the motors can be found in group 77
PFC maintenance and monitoring.
13
Other [bit] Source selection (see Terms and abbreviations on page 162). -
76.71 PFC autochange
interval
Specifies the interval that is used in setting Fixed interval of
parameter 76.70 PFC autochange.
1.00 h
0.00…42949672.95
h
Time. 1 = 1 h
No. Name/Value Description Def/FbEq16