Base Load Sequencing (BLS) 10
October 2013 GB 65 /80
If the compressor is connected via the STD mod-
ule, the actual compressor hours run cannot be
serially read in. In this case there is a button here
to set the hours run. After tapping the button, an
input menu appears for entry of the current com-
pressor hours run.
Hours Run (BLS)
The BLS sequence will be redefined regularly
on the basis of the operating hours (BLS) shown
here. If this setting differs from the actual operat-
ing hours on the compressor button, both values
are displayed on the compressor button.
For the cyclic specification of a BLS sequence,
see chapter "BLS function description / Specifica-
tion of a new BLS sequence based on the hours
run (BLS)".
Maximum Volume Flow
Display of the maximum volume flow. (FS)
Display of the maximum available volume flow at
the current line pressure. (RS)
For some slaves this setting must be configured
manually. Accordingly a button is then available
here. After tapping the button, an input menu ap-
pears for entry of the compressor maximum vol-
ume flow.
Line Pressure
Display of the current line pressure measured by
the compressor.
This line is not displayed for compressors con-
trolled by the compressor module (STD).
Software Version
Display of the controller software version.
10.6 Base Load Sequencing
Settings
Calling
1
Tap the <Base Load Sequencing> tab.
2
Tap button <Settings>.
–
The menu "Settings" appears.
Description
Base Load Sequencing
On
Select Menu
Setpoints...
Behavior...
Settings
OK
Timer Control...
Configuration...
Fig. 10-8: BLS menu "Settings"
Base load sequencing <On> / <Off>
Switching on and off of base load sequencing.
Base load sequencing can only be turned on when
the number of slaves is greater than zero. If base
load sequencing is switched on, the slaves will be
controlled by the master. The local setpoints of the
slaves are ignored.
If base load sequencing is switched off, the slaves
will run independently from the master and will
use their local setpoints. The BLS group is still dis-
played.
Setpoints
p1 Cut-Out Point
p1 Cut-In Point
p2 Cut-Out Point
p2 Cut-In Point
Timer Start Enabled
Select a Setting
Setpoints
OK
Off
Fig. 10-9: BLS menu "Setpoints"
The "Setpoints" menu is used to configure the op-
erating behaviour of the base load sequencing.
The following sub-menus are available: The dis-
play can be scrolled using the arrow keys to permit
display of other points.
p1 Cut-Out Point
Maximum line pressure at which the BLS will shut
down the compressor on the far right in the se-
quence.
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