<5. Functions>
85
IM 01E21A02-03EN
5.5.3 Pulsing Flow Support Function Setting
If a pump, etc. is used, it may cause an error in the average of the flow rate due to the pulsing
flow. If the pulsing flow support function is used, an error due to a pulsing flow can be reduced by
following a flow rate change while controlling the flow rate calculation.
The setting can be configured with the following parameter.
Menu path
Display
Device setup ► Detailed setup ► AUX calculation ►(see below)
F
OUNDATION
Fieldbus
Device Configuration ► STB ► Device Configuration ► Configuration ► AUX Calculation
► (see below)
Block
Name
Relative
Index
Parameter
Description
Display
F
OUNDATION
Fieldbus
STB
92
Pulsing flow
Pulsing Flow
Specifies the use of the pulsing
flow support function.
From the table below, select the use of the pulsing flow support function.
Selection
Description
Display
F
OUNDATION
Fieldbus
No
No
Do not use the pulsing flow support function.
Yes
Yes
Use the pulsing flow support function.
5.5.4 Power Frequency Synchronization Setting
This function can be specified whether the excitation frequency (internal signal processing
frequency) and power frequency are synchronous or asynchronous.
When setting the excitation frequency and power frequency to asynchronous, the excitation
frequency is determined with the setpoint of the power frequency.
The power frequency synchronous/asynchronous mode and the power frequency can be
configured with the following parameters.
Menu path
Display
Device setup ► Detailed setup ► AUX calculation ► (see below)
F
OUNDATION
Fieldbus
Device Configuration ► STB ► Device Configuration ► Configuration ► AUX Calculation
► (see below)
Block
Name
Relative
Index
Parameter
Description
Display
F
OUNDATION
Fieldbus
STB
93
Power sync on/off
Power Synchronize
Sets the excitation frequency
and power frequency to
synchronous.
*1
STB
94
Set power freq
Set Power Frequency
Specifies the power frequency
when the excitation frequency
and power frequency are
asynchronous.
*1:
Sets the synchronous/asynchronous mode of power frequency from the table below.
Selection
Description
Display
F
OUNDATION
Fieldbus
Off
No
Sets the excitation frequency and power frequency asynchronous.
On
Yes
Sets the excitation frequency and power frequency synchronous.