Learning Advanced Features
Pre-PID Operation
When an operation command is entered that does not include PID control, general
acceleration occurs until the set frequency is reached. When the controlled variables
increase to a particular point, the PID operation begins.
Pre-PID Operation Setting Details
When general acceleration is required, the frequency up to general
acceleration is entered. If Pre-PID Freq is set to 30Hz, the general
operation continues until the control variable (PID feedback variable) set at
AP. 35 is exceeded.
When the feedback variable of the PID controller is higher than the value
set at AP. 35, the PID control operation begins. However, when a value is
set for AP.36 (Pre-PID Delay) and a feedback variable less than the value
set at AP.35 is maintained for a set amount of time, the “pre-PID Fail” fault
trip will occur and the output will be blocked.
To Next Page
Loading...
