Variant C: Equal duty cycle during the week
A timer triggers the switch between system setpoint pressure
pA
and system setpoint pressure
pB
(local operating mode:
pA/pB SC2Clk
).
Precondition The system setpoint pressure
pA
/
pB
is configured the same for both machines.
➤ The clock program is set up using the following switching points:
No.: Weekday Time Network nominal pressure
01 Mon 00:00AM
pA
On
02 Mon 09:00PM
pB
On
03 Tue 05:00PM
pA
On
04 Wed 03:00PM
pB
On
05 Thu 12:00PM
pA
On
06 Fri 09:00AM
pB
On
07 Sat 06:30AM
pA
On
08 Sun 03:00AM
pB
On
Tab. 73 Example for a clock program for equal duty cycling during the week
8.11 Setting input and output signals
The controller's analog and digital inputs and outputs can be used for customized messages and/or
other functions.
The various options are explained in the following chapters:
■ 8.11.1: Output operational states of machine on digital outputs
■ 8.11.2: Output input signals on the display
■ 8.11.3: Output measured values on the display
■ 8.11.4: Switching and/or triggering messages with thresholds
The controller only allows assignment of spare inputs and outputs.
Any assignment of a pre-assigned input or output is discarded by the controller.
When delivered from the factory, the outputs DO0.3 to DO0.5 are available for assignment.
Further spare outputs can be found in the machine circuit diagram.
➤ Set the inputs and outputs as described below.
8.11.1 Output important operational states of machine on digital outputs
Important operational machine states can be made available as digital signals via floating contacts.
Each output can be assigned only once.
The following messages can be output:
Message Explanation Output
Controller on Controller is powered up
Compressor on The machine is switched on
12)
Not for AIRTOWER
8 Initial Start-up
8.11 Setting input and output signals
No.: 9_9450 13 USE
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.1.2
151
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