9.1.2 Switching off
1. Press the «OFF» key.
The machine switches to IDLE (not for AIRTOWER) and the
ON
LED flashes. The
SIGMA CONTROL 2 display shows
Stopping
. The
ON
LED extinguishes as soon as the auto‐
matic shut-off action is completed.
2. Switch off and lock out/tag out the power supply disconnecting device.
Result The
Controller voltage
LED extinguishes. The machine is switched off and disconnected from the
power supply.
In rare cases, you may want to shut down the machine immediately and cannot wait until the
automatic shut-down process is finished.
➤ Press «OFF» once again.
9.2 Switching off in an emergency
The EMERGENCY STOP push button is located below the controller
2)
.
2)
Does not apply to i.Comp
Fig. 41 Switching off in an emergency
22 EMERGENCY STOP push button
Switching off
➤ Press the EMERGENCY STOP push button.
After actuating the EMERGENCY STOP push button, the machine is shut down. However,
the machine is still connected to the electrical power supply.
Result The EMERGENCY STOP push button remains latched after actuation.
The compressor's pressure system is vented and the machine is prevented from automatically re-
starting.
Switching on
Precondition The fault has been rectified
9 Operation
9.2 Switching off in an emergency
No.: 9_9450 13 USE
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.1.2
175
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