Inovance MD800 Series - Page 317

Parameter Group
-316-
Description
This parameter is used for display of the PID reference and feedback, which are dimensionless. For
example, if this parameter is set to 1000, the PID reference (0% to 100%) corresponds linearly to the
feedback value (0 to 1000).
FA-05
Proportional gain Kp1
Address:
64005
Min.:
0.0
Unit:
-
Max.: 1000 Data type: UInt16
Default:
20.0
Change:
At once
Value Range:
0.0 to 1000
Description
This parameter defines the proportional gain Kp in PID control. The deviation reduction speed
depends on the proportional coefficient Kp. A larger Kp tends to reduce the deviation faster, but may
cause system oscillation, especially at large hysteresis. A smaller Kp indicates lower possibility of
oscillation but also slower deviation reduction.
FA-06
Integral time Ti1
Address:
64006
Min.:
01
Unit:
s
Max.: 100.00 Data type: UInt16
Default:
2.00
Change:
At once
Value Range:
0.01s to 100.00s
Description
This parameter defines the integral time Ti in PID control. It determines the integral adjustment
intensity of the PID controller. Shorter integral time indicates greater adjustment intensity.
FA-07
Derivative time Td1
Address:
64007
Min.:
0.000
Unit:
s
Max.: 10.000 Data type: UInt16
Default:
0.000
Change:
At once
Value Range:
0.000s to 10.000s
Description
This parameter defines the derivative time Td in PID control. It determines the deviation variation
adjustment intensity of the PID controller. Longer derivative time indicates greater adjustment
intensity.
FA-08
PID cut-off frequency in reverse direction
Address:
64008
Min.:
0.00
Unit:
Hz
Max.:
655.35
Data type: UInt16
Default:
2.00
Change:
At once
Value Range:
0.00 Hz to 655.35 Hz