Inovance MD800 Series - Page 320

Parameter Group
-319-
0: No switchover
1: Switchover by DI
2: Automatic switchover based on deviation
3: Switchover based on running frequency
6: Automatic adjustment based on roll diameter
7: Automatic adjustment based on maximum roll diameter percentage
Description
This parameter defines the switchover between two groups of PID parameters.
0: No switchover
No switchover is performed.
1: Switchover by DI
To use this function, the DI terminal must be assigned with function 43 (PID parameter switchover). If
the DI is inactive, parameter group 1 (FA-05 to FA-07) is selected. If the DI is active, parameter group 2
(FA-15 to FA-17) is selected.
2: Automatic switchover based on deviation
If the absolute value of the deviation between the reference and the feedback is lower than that set
by FA-19 (PID parameter switchover deviation 1), parameter group 1 applies. If the absolute value of
the deviation between the reference and the feedback is higher than that set by FA-20 (PID parameter
switchover deviation 2), parameter group 2 applies. If this absolute value is between FA-19 (PID
parameter switchover deviation 1) and FA-20 (PID parameter switchover deviation 2), the PID
parameters are the linear interpolation values of the two groups of parameters.
3: Switchover based on running frequency
PID parameters are switched automatically based on the running frequency of the AC drive.
6: Automatic adjustment based on roll diameter
When the current roll diameter changes between the maximum roll diameter (B0-08) and the
minimum roll diameter (B0-09), the PID parameters are the linear interpolation values of the two
groups of PID parameters. The minimum roll diameter corresponds to parameter group 1 (FA-05 to
FA-07), and the maximum roll diameter corresponds to parameter group 2 (FA-15 to FA-17).
7: Automatic adjustment based on maximum roll diameter percentage
When the current roll diameter changes between the maximum roll diameter (B0-08) x FA-20 and the
maximum roll diameter (B0-08) x FA-19, the PID parameters are the linear interpolation values of the
two groups of PID parameters.
FA-19
PID parameter switchover deviation 1
Address:
64019
Min.:
0.0
Unit:
%
Max.:
6553.5
Data type: UInt16
Default:
20.0
Change:
At once
Value Range:
0.0% to 6553.5%
Description
The value 100% corresponds to the maximum deviation between the reference and feedback. The
value range is 0.0% to FA-20 (PID parameter switchover deviation 2).
FA-20
PID parameter switchover deviation 2
Address:
64020
Min.:
0.0
Unit:
%
Max.: 100.0 Data type: UInt16
Default:
80.0
Change:
At once