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■ LOAD/PARTIAL LOAD:
In the LOAD/PARTIAL LOAD control mode, the machine runs in PARTIAL LOAD once the cut-
out pressure has been reached. If there is no demand for pressure within 30 seconds, the mo‐
tor switches off and the machine switches to the READY operating point.
■ START/STOP
In the START/STOP control mode, the motor switches off once the cut-out pressure has been
reached and the machine switches to the READY operating point.
The relief and load valve opens and the machine relieves up to the check valve. When the
compressed air consumption then rises and the network pressure falls, the motor restarts and
the machine generates compressed air.
4.4 i.Comp CONTROLLER
If the machine is switched on and the network pressure is below the cut-in pressure, the compres‐
sor motor starts and the machine generates compressed air.
Depending on the compressed air consumption, the motor speed is adjusted, within the permissi‐
ble speed limits, so that the network pressure corresponds with the set required pressure. When
the consumption falls below the minimum flow rate of the machine, the pressure increases further.
Once the cut-out pressure is reached, the compressor motor stops and the machine is relieved up
to the check valve (START/STOP control mode).
When the compressed air consumption rises again and the pressure falls below the cut-in pres‐
sure, the compressor motor starts and the machine generates compressed air.
Controller switching points
Fig. 4 Controller switching points
p
Network pressure
t
Time
1
Cut-out pressure
2
Cut-in pressure
3
Set required pressure
4
Pressure differential (0.2 bar) cannot be
set
5
Switching differential (0.8 bar) cannot be
set
6
Pressure trend
4
Design and Function
4.4
i.Comp CONTROLLER
No.: 901731 24E
Operator manual Reciprocating compressor
i.Comp 3
21
Содержание i.Comp 3
Страница 2: ...Original instructions KKW PWPC 2 04 en SBA KOLBEN ANLAGE M 20200310 081012...
Страница 6: ...Contents iv Operator manual Reciprocating compressor i Comp 3 No 901731 24E...
Страница 8: ...List of Illustrations vi Operator manual Reciprocating compressor i Comp 3 No 901731 24E...
Страница 10: ...List of Tables viii Operator manual Reciprocating compressor i Comp 3 No 901731 24E...