Wavelength Electronics LFI-3751, User Manual

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Chapter 4 - Remote Interface Reference
Autotune PID & Setting the P, I, and D Constants
Autotune PID & Setting the P, I, and D Constants
•
To confi gure the instrument to begin an Autotune Optimization, send
one of the following Command Packets .
Write
!101210-002.00023
(Sets [P] to AutS)
!101211-001.00021
(Sets [P] to Autd)
•
To confi gure the instrument as a Proportional ( P ) controller with P = 30,
send the following Command Packets .
Write
!030.00024
(Sets [P] to 30)
!000.00026
(Sets [I] to OFF)
!000.00025
(Sets [D] to OFF)
•
To configure the instrument as a PI controller with P = 30 and
I = 1 second, send the following Command Packets .
Write
!030.00024
(Sets [P] to 30)
!001.00027
(Sets [I] to 1 second)
!000.00025
(Sets [D] to OFF)
For complete details about Autotune PID operation, see Chapter 2.
For complete detail about setting the P, I, and D constants, see Chapter 2.
The LFI-3751 with Autotune PID can optimize the PID control parameters
to minimize temperature overshoot and reduce settling times with Setpoint
Response Autotuning or to reject thermal transient effects on temperature
stability by using Disturbance Rejection Autotuning.
The LFI-3751 can be configured to operate as a P, PI, PD , or PID
temperature controller.
RS-232
Commands Discussed:
[P]
[I]
[D]