KAESER KOMPRESSOREN SX, Руководство по обслуживанию

Страница: 51 / 122

The machine does not shut down?
➤ Have the interlock switch checked by an authorised KAESER Service representative.
7.9 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.
Setpoint pressure: switching point
1. Scroll with the arrow keys until the parameter D "setpoint pressure: switch.point" is displayed in
line 3.
2. Press and hold «enter» for at least 3 seconds until the cursor flashes.
3. Use the arrow keys to set the desired switching point and confirm with «enter».
Setpoint pressure: switching differential
This switching differential is factory set. Adjust this parameter if the motor starting frequency is too
high.
1. Scroll with the arrow keys until the parameter C "setpoint pressure: switching differential" is dis‐
played in line 3.
2. Press and hold «enter» for at least 3 seconds until the cursor flashes.
3. Use the arrow keys to set the desired differential and confirm with «enter».
7 Initial Start-up
7.9 Setting the setpoint pressure
9_6919 04 E
Service Manual Screw Compressor
SX SIGMA CONTROL BASIC
41