The upper and lower limit of the setting is shown in grey, the actual setting is shown in black. Use the ↑
or ↓ key of the Scroll keys to modify the settings as required and press the Enter key to accept.
If necessary, change the other settings as required in the same way as described above.
Indirect stop: occurs when the pressure rises to the pre-set Indirect stop setpoint (= setpoint plus Indirect stop
level). The motor will decelerate to minimum speed and the compressor will switch to unloaded condition.
Direct stop: occurs when the compressor runs at a speed between minimum and maximum and the net pressure
rises above the direct stop setpoint (= setpoint plus Direct stop level).
Both settings (Indirect stop level and Direct stop level) are programmable, see section Programmable settings.
3.13 Event history menu
Menu icon, Event History
Function
To call up the last shut-down and last emergency stop data.
Procedure
Starting from the Main screen,
• Move the cursor to the action button Menu and press the Enter key.
• Using the Scroll keys, move the cursor to the Event History icon (see below).
• Press the Enter key.
The list of last shut-down and emergency stop cases is shown.
Instruction book
2920 7101 21
39
Summary of Contents for QGS 40
Page 1: ...QGS 40 QGS 50 QGS 60 QGS 75 QGS 100 Instruction book Oil flooded rotary screw compressors...
Page 2: ......
Page 100: ......
Page 101: ......