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2. DELCOS 3100 Base-Load Sequencing
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2.6
Overview of [BASE LOAD SELECT.] menu
All menu settings can be locked/unlocked again with code 3031.
Version FS:
BASE LOAD SELECT.
{menu header}
OPERATION
ON
{off, on, optional timer, fault}
CUT-OUT POINT
9.7 bar
{max. network pressure}
CUT-IN POINT
9.3 bar
{min. network pressure}
BASE LOAD COMP
2
{current base-load system}
123h
K2
K3
k4
r5
k1
{Status line: hours remaining and array}
CHANGEOVER TIME
240h
{setpoint time planned for the array}
QUANT.SLAVES
3
{for normal BLS operation}
QUANT.RESERVE
1
{as backup in case of emergency}
START DELAY
5s
{staggered start-up}
LOAD NET IN
15min
{start-up speed}
VOLUME OF NET
20%
{operating figure for compressed-air station}
Version RS and SR:
BASE LOAD SELECT.
{menu header}
OPERATION
ON
{off, On, timer, fault}
CUT-OUT POINT
13,0 bar / 188 psi
{max. network pressure}
TARGET PRESSURE
12,5 bar / 181 psi
{target network pressure}
BASE LOAD COMP
2
{current base-load system}
24h
K1
K2
k3
k4
k5
{status line: hours remaining and array}
CHANGEOVER TIME
24h
{setpoint time planned for array}
QUANT.SLAVES
3
{for normal BLS operation}
QUANT.RESERVE
1
{as backup in case of emergency}
VOL.COMP2 =
20.0 m3/min
{rate delivered from compressor 2}
VOL.COMP3 =
15.0 m3/min
{rate delivered from compressor 3}
VOL.COMP4 =
15.0 m3/min
{rate delivered from compressor 4}
VOL.COMP5 =
8.0 m3/min
{rate delivered from compressor 5}
SWITCH OFF DELAY
30s
{time until disconnected}
START DELAY
5s
{gradual start-up}
LOAD NET IN
15min
{start-up speed}
NET VOLUME
20m3
{network volume}
2.6.1
Setting information
This system of base-load sequencing provides every
capability of supplying compressed air in the most
efficient way possible.
It permits extremely narrow pressure bands with
maximum precision and very low pressure levels etc.
At the same time, it is possible to prevent compressors
switching on unnecessarily in response, for example,
to irrelevant, short-term dips in network pressure.
On the other hand, specific conditions may be given
that are less than optimal (e.g. compressor installed
has long start-up time) but which cannot be changed.
In addition, the compressed-air accumulator may be too
small or network losses (leakages) too high. Mention
could be given to many other reasons at this point
This is why, of course, it is most important to match
settings to BLS. Data must always be set as correctly
and as realistically as possible, with care being taken to
find the optimum setting.
2.6.2
Data protection
BLS setting data are protected from loss by a battery.
Protection by battery is only important in phases when
the machine is without current. Long before the battery
is no longer able to protect the data, a warning appears
on the display: battery. The electronics clock module
(RTC) must then soon be changed.
Once the battery is completely exhausted, data will be
lost after a power failure. To ensure the supply of
compressed air in this case too, the BLS system will set
itself to default values. The system-specific data can be
re-set temporarily (of course only until the next power
failure).