LSIS LSLV-S100 - Frequency Limit

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Learning Advanced Features
5.8.2 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
Code
Description
AP.34 Pre-PID Freq
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.
AP.35 Pre-PID Exit,
AP.36 Pre-PID Delay
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.
5.8.3 PID Operation Sleep Mode
If the operation continues at a frequency lower than the set condition for PID operation, the PID
operation sleep mode starts. When PID operation sleep mode starts, the operation will stop until
the feedback exceeds the parameter value set at AP.39 (PID WakeUp Lev).