LSIS 6731001500, Руководство пользователя

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Learning Advanced Features
5.8.2 Soft Fill Operation
A soft fill operation is used to prevent excessive pressure from building in the pipe system at the
initial stage of a pump operation. When the operation command is given, a general acceleration
(without PID control) begins and continues until the output reaches the frequency set at AP1-21,
for the time set at AP1-22. Then, the soft fill PID operation is performed unless the feedback value
has reached the value set at AP1-23 (Soft Fill Set value). The soft fill PID operation continues until
the feedback or the soft fill PID reference value reaches the value set at AP1-23 (Soft Fill Set value).
When the soft fill operation ends, a normal PID operation starts.
Group Code Name LCD Display Parameter Setting Setting Range Unit
AP1
20 Soft Fill options Soft Fill Sel 0 No 0–1 -
21
Pr- PID operation
frequency
Pre-PID Freq 30.00
Low Freq–
High Freq
Hz
22 Pre-PID duration Pre-PID Delay 60.0 600.0 sec
23 Soft fill escape value Soft Fill Set 20.00
Unit Min–Unit
Max
%
24
Soft fill reference
increment
Fill Step Set 2.00 0–Unit Band %
25
Soft fill reference
increment cycle
Fill Step Time 20 0–9999 sec
26
Soft fill feedback
difference
Fill Fdb Diff 0.00 0–Unit Band %
Soft Fill Operation Setting Details
Code Description
AP1-20
Soft Fill Sel
Enables or disables the soft fill PID.
AP1-21
Pre-PID Freq
Sets the frequency range for a general acceleration without PID control. If AP1-
21 (Pre-PID Freq) is set to 30 Hz, general operation is performed until the PID
feedback reaches the value set at AP1-23 (Soft Fill Set). However, if the PID
reference or feedback exceeds the value set at AP1-23 during the pre-PID
operation, a normal PID operation starts immediately.
AP1-22 Pre-PID In general, a PID operation starts when the feedback volume (controlled