Position Name Function
15
Fault
Flashes red to indicate a machine fault.
Continuous red light after acknowledgement.
16
Communications
error
Continuous red light to indicate a faulty communication connec‐
tion, or an external fault message without machine shut-down.
17
Warning
Flashes in yellow in the following events:
■ Maintenance work due
■ Warning message
Continuous yellow light after acknowledgement.
18
Voltage applied to
controller
Continuous green light when voltage is applied to the controller.
19
LOAD
Continuous green light when the machine is running in LOAD.
20
IDLE
Continuous green light when the machine is running in IDLE.
Flashes when the «LOAD/IDLE» toggle key is pressed.
21
Remote control
Continuous green light when the machine is in remote control.
22
Time control
Continuous green light when the machine is in time control.
23
ON
Continuous green light when the machine switched on.
Tab. 37 LEDs
RFID reader
RFID is the abbreviation for “Radio Frequency Indentification” and enables the identification of per‐
sons or objects.
Placing a suitable transponder in front of the RFID reader of the controller will automatically acti‐
vate the communication between transponder and SIGMA CONTROL 2.
A suitable transponder is the KAESER RFID Equipment Card. Two of them have been provided
with the machine.
Typical application:
■ Users log on to the machine.
(no manual input of the password required.)
Fig. 7 RFID reader
4 Design and Function
4.3 Operating panel SIGMA CONTROL 2
30
Operating Manual Rotary screw compressor
SK 901848 21 E
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