Condensate in the cooling oil?
➤ Contact KAESER Service.
Further information Information on draining off cooling oil is given in chapter 10.14.
7.9 Checking the Door Interlock Switch
The interlock switch stops the machine as soon as a door or access panel is opened.
Check the interlock switch function on commissioning.
The door interlock switch is an important safety device.
The machine may only be operated with a correctly functioning interlock switch.
Fig. 21 Interlock switch position
1
Door interlock switch
2
Panel
1. Open the access panel
2
while the machine is running.
The machine switches off automatically. The controller displays an alarm message.
2. Close the panel and acknowledge the alarm.
The machine does not switch off automatically?.
➤ Have the interlock switch checked by an authorized KAESER Service representative agent.
7.10 Setting the setpoint pressure
The setpoint pressure (cut-out pressure) is factory set at the maximum permissible working pressure
of the machine.
Adjustment is necessary for individual operating conditions.
Do not set the setpoint pressure of the machine higher than the maximum working pressure of
the air system.
The machine may not toggle more than twice per minute between LOAD and IDLE.
To reduce the cycling (toggling) frequency:
➤ Increase the difference between cut-in and cut-out pressure.
➤ Add a larger air receiver downstream to increase buffer capacity.
7
Initial Start-up
7.9
Checking the Door Interlock Switch
44
Service manual Screw compressor
Aircenter SX 3/7.5 SIGMA CONTROL BASIC
Number: 9_6945 01USE
