Chapter 7 Parameter Explanation
Shanghai Sigriner STEP Electric Co., Ltd.
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Figure 7-22 Schematic Diagram of Open Loop Main and Auxiliary Reference Synthesis
In the process open-loop control mode, an auxiliary preset value f
a
overlays on the main preset value
f
m
, generating process open-loop synthesis frequency preset
.
The main reference value f
m
and the auxiliary reference value f
a
can be operated by means of
"addition", "subtraction", "offset", "maximum", and "minimum".
The process open loop reference main and auxiliary operation P50.01 are defined as follows.
0: No operation
1:Main reference + auxiliary reference Auxiliary frequency reference value is superimposed on
the main reference, and the function is "addition".
Figure 7-23 Open Loop Main and Auxiliary Reference Operation 0
Process open loop synthetic reference f
com
= main reference f
m
+ auxiliary reference f
a
2:Main reference - auxiliary reference Auxiliary frequency reference value is superimposed on
the main reference, and the function is "subtraction".
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