Baldor VS1MXS51, Installation & Operating Manual

Page: 44 / 88

7-10 Parameter Descriptions MN762S
7.3.2 Parameter Group 3 – PID Control
Table 7-3 Parameter Group 3 - PID Control
Par No. Description Range Units Default Explanation
P3-01 Proportional gain 0.1 to 30.0 - 2.0
PID Controller Proportional
Gain. Higher values provide
a greater change in the
drive output frequency in
response to small changes
in the feedback signal. Too
high a value can cause
instability.
P3-02
Integral time
constant
0.0 to 30.0 Seconds 1.0
PID Controller Integral
Time. Larger values
provide a more damped
response for systems
where the overall process
responds slowly.
P3-03
Differential time
constant
0.00 to 1.0 Seconds 0.00
PID Differential Time
Constant
P3-04 PID operating mode
0: Direct
1: Inverse
- 0
Direct operation – Motor
speed increases with an
increase in the feedback
signal.
Inverse Operation – Motor
speed decreases with an
increase in the feedback
signal.
P3-05
PID Set point /
reference select
0: Digital
1: Analog
- 0
Selects the source for the
PID Reference / Setpoint
0: P3-06 is used
1: Bipolar analog input is
used
P3-06 PID digital reference 0.0 to 100.0 % 0.0
Sets the preset digital PID
reference / set point.
P3-07
PID controller high
limit output
P3-08 to 100.0 % 100
Limits the maximum
value output from the PID
controller.
P3-08
PID controller low
limit output
0 to P3-07 % 0
Limits the minimum output
from the PID controller