LS ELECTRIC SV-iS7 Series, User Manual

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Learning Advanced Features
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8.8.2 Pre-PID Operation
Pre-PID operation refers to a section of a PID operation where the inverter runs without PID
control. The inverter accelerates to a set frequency and runs without PID control, and then the
PID control begins after the PID output exceeds the set value at APP-35 (Pre-PID Exit).
Code Description
APP-34 Pre-PID Frq
Sets the target frequency to operate without PID control. The inverter
continues running at the set frequency until the PID feedback exceeds the
feedback value (%) set at APP-35.
APP-35 Pre-PID Exit
Sets the feedback value of the PID control (PID reference) to stop pre-PID
operation and start PID control.
APP-36 Pre-PID
Delay
Sets the time until a pre-PID fault trip occurs. If a feedback smaller than the
PID reference set at APP-35 is maintained for the set time, a pre-PID fail trip
occurs and inverter output is stopped.