Parameter Description
Parameters
189
process.
•
The relationship between PID auto adjustment basis and PID parameters is shown as
following diagram:
Auto adjustment basis
for PID parameters
PID Paraneters
P641/P642/P643
P172/P173/P174
The minimum
adjustment basis
Adjustment basis
during the process
The maximum
adjustment basis
D changes from P
.174
to P
.643
linearly
I changes from P
.173
to P
.642
linearly
P changes from P
.172
to P
.641
linearly
5.9
2
Pre-drive control parameters (P.645~P.647)
P.645 “Pre-drive speed gain”
P.646 “Pre-drive torque increase proportion”
P.647 “Pre-drive torque increase delay time”
Parameter
Factory
setting
Setting range
Remarks
645
0.0%
-50.0%~50.0%
Pre-drive speed gain
646
0.0%
-50.0%~50.0%
Pre-drive torque increase proportion
647
0
0~65535ms
Pre-drive torque increase delay time
<Setting>
• The diagram of auto roll alternation is as follows, there are two inverters to control the
replacing upper roll and replacing lower roll.
M1 is “replacing lower roll”, M2 is “replacing upper roll” or “pre-drive roll”
