Design with flow rate limiter
When the generator is activated, the air inlet at the inlet valve is limited. The compressor runs with
a reduced compressed air flow rate. As a result the drive engine is protected from overloading. For
reduced compressed air flow rate, please refer to chapter 2.8.3.
4.6.3.1 Operating modes
The compressor works with the normal flow rate regulation and generates electrical power at the
same time.
The generator can work in two modes. These are selected by the mode switch:
■ Automatic cut-in
■ Continuous load
Generator power supply isolating
device
Mode selector switch What is provided?
OFF
-
Compressed air
ON
Position 1
(automatic start mode)
Compressed air and electrical power
Position 2
(continuous load)
Electrical power and compressed air
Tab. 63 Generator / compressor operation
Operating mode Automatic cut-in
Continuous load
Switch position Position 1
Position 2
Engine speed
Electrical power consumption > 100 VA:
automatic maximum speed
Permanent maximum speed (en‐
gine under full load)
Power consumption below minimum value:
Engine run-on time of approximately 2 mi‐
nutes at maximum speed
Advantages
Fuel saving
Constant oscillation between maximum and
minimum speed avoided
Continuous generator power
available without delay
Tab. 64 Generator operating modes
4.6.3.2 Operating controls
The switches and outlet sockets for electrical consumers are located on the generator control box.
Individual consumers are connected only by these outlet sockets.
The fuses are found within the machine.
Generator control box 400V
Sockets and switches 400 V – three phase AC generator, see illustration 8.
4
Design and Function
4.6
Options
No.: 9_9548 22 HCE
Operating Manual Portable Rotary Screw Compressor
MOBILAIR M27 PE
47
Option gb
