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5 Operating the pump controller
18/02/2021
bplogic intelligent pump controller
157
5.5 Secondary functions
Secondary functions are used to expand primary functions.
This section describes the possible secondary functions. The secondary functions
that are available to you depend on the pump controller configuration file that is
used. Only the manufacturer can edit the configuration file.
If there are problems with the configuration, contact customer
service:
When doing so, provide the current configuration file
” on
page 249
Or:
Have the pump controller’s order number and serial number
at hand.
page 8
5.5.1 Offset control
The offset control is used to limit the pressure and to extend the permissible work-
ing range of a screw spindle pump. In the offset control, a preselected pressure
opens a pressure control valve in order to prevent pressure peaks.
Using offset control
Prerequisites:
The
“Offset control” secondary function is assigned to an application module
with the “Control mode” primary function that controls the “Pressure” process
size:
Checking the assignments to application modules
” on
Using the application overview during operation
on
For information regarding the offset control, also see
Setting parameters for analog inputs and out-
on page 172