LS ELECTRIC LSLV-H100 Series, 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
Delay In general, a PID operation starts when the feedback volume (controlled
variables) of PID controller exceeds the value set at AP1-23. However, if