the line Display Meaning
4
1, 2, ... Error code for alarm and warning messages (see table 49 and table 50).
Operating state: LOAD
Operating state: IDLE
Tab. 43 Display
4.10.2 Parameters
Parameters Meaning
0
Operating hours counter
Displays the total time the drive motor was switched on.
Only KAESER Service has the right to change this parameter.
1
Load hours counter
Shows the total time the compressor drive motor has run under LOAD.
Only KAESER Service has the right to change this parameter.
2
Maintenance counters
Displays the number of operating hours until the next scheduled maintenance is due.
SIGMA CONTROL BASIC counts down the operating hours from a default value. The
warning message
S
is displayed when the counter reaches zero.
Set the counter to its original value upon completion of the service activities. The in‐
terval starts anew.
A password is required to change this parameter.
3
Relief valve test mode
This function switches the activating pressure check mode for the pressure relief
valve on and off.
The warning message
i
is displayed when the check mode is switched on.
A password is required to change this parameter.
For the inspection and the password: see chapter10.10
4
Temperature display units
The airend outlet temperature can be displayed in either °C or °F.
5
Pressure display units
The current working pressure can be displayed in bar, psi or MPa.
6
Control modes
Factory setting: OFF
This parameter changes the control mode:
■ OFF: QUADRO
■ ON: DUAL
7
Refrigeration dryer control mode
Factory setting: OFF
This parameter changes the dryer control mode:
■ OFF: TIMER
■ ON: CONTINUOUS
4
Design and Function
4.10 Functional description – SIGMA CONTROL BASIC
9_5717 20 E
Service Manual Screw Compressor
ASK T SIGMA CONTROL BASIC
35
