KAESER KOMPRESSOREN SIGMA CONTROL 2, User Manual

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Example 3 Two machines with equal flow rates
Base load sequencing is particularly well suited for machine constellations that require most of the
time just one of the two machines for covering the air demand. The set-point pressures
pA and pB
are set the same for both machines. Both machines use QUADRO, VARIO or DYNAMIC as the
control mode. Automatic base load sequencing ensures that unnecessary idle times are minimised
on both machines and that the energy-efficiency of the compressed air generation is increased.
■ Operating mode of load control on master:
Local mode pA/pB SC2.
─ When both machines are at standstill, the master switches its set-point pressure and sends
a signal to the slave to use the other set-point pressure. E.g. if the set-point pressure on the
master has been set to
pB, the slave receives the signal to use the set-point pressure pA
now. .
■ Operating mode of load control on slave:
Remote mode pA/pB SC2.
─ Depending on the specification by the master, the slave regulates to set-point pressure
pA
or
pB. See example for the master: The master regulates to set-point pressure pB and con‐
sequently, the slave to
pA.
To run two machines with SIGMA CONTROL 2 in interconnected operation, both controllers
must be equipped with the same software version.
➤ Follow the configuration steps as described in table 72:
Controller Procedure Chapter
Both Establishing the electrical connection 8.11.4.1
Both Set the set-point pressures for both, pA and pB. The pressure for the
pA and pB switching points is measured directly at the compressor.
Pressure losses in the network do not need to be taken into account.
8.11.4.2 and
8.11.4.3
Master Either set up switching times for the time program 8.11.4.2
or set switching times for the timer 8.11.4.2
Master Set the type of LOAD control (time program or timer) in on-site opera‐
tion.
8.11.4.2
Slave Set remote mode pA/pB SC2 8.11.4.3
Slave Activating the remote control 8.11.4.3
Both Set IP addresses for Ethernet 8.11.4.2 and
8.11.4.3
Both Setting the controller as master or slave 8.11.4.2 and
8.11.4.3
Tab. 72 Master-slave settings
8.11.4.1 Establishing the electrical connection
You need the following accessories to create the network connection with SIGMA NETWORK or
Ethernet:
■ SIGMA NETWORK cable (7.9679.0) or Ethernet cable with a maximum connection length of
100 m each
8 Initial Start-up
8.11 Setting the machine for master control operation
134
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.0.X
No.: 9_9450 12 E