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9 Control system
36
9.5.3
Setting system pressure
(only for L23RS-L29RS)
Speed control is achieved with the help of a software
controller which adjusts the speed according to the
need for compressed air.
In the
[
CONTROL
MENU
]
set the upper
CUT-OUT
POINT
and the
TARGET PRESSURE
.
When the maximum system pressure switching point is
reached, the machine switches to off-load.
Between the
TARGET PRESSURE
and the
CUT-OUT
POINT
the drive motor speed is controlled according to the
need for compressed air.
For example:
CUT-OUT
POINT
145 PSI
TARGET PRESSURE
138 PSI
The machine
ʼ
s rotational speed is controlled
based on the need for compressed air so that the
target pressure of 138 PSI is maintained.
When the system pressure reaches 145 PSI, the
machine switches to off-load.
Max. system pressure:
The
CUT-OUT
POINT
is set in the
[
CONTROL
MENU
]
sub-
menu. To do so, press the
+
buttons at the same
time. You are then taken to the main menu. Use
to
switch to the
[
CONTROL
MENU
]
sub-menu. Then press the
button.
The
CUT-OUT
POINT
Pressing the
button again
causes the value to flash. You can now change
(increase or decrease) this value by pressing
or
.
Then confirm the value set by pressing the
button.
NOTICE
The control system checks whether the value
set can be used. The value set for CUT-
OUT POINT must be at least 3 PSI larger than
the TARGET PRESSURE. Therefore, you may
have to set the TARGET PRESSURE first. To
prevent your compressor from suffering from
excess wear, the difference between the CUT-
OUT POINT and the TARGET PRESSURE
should not be too small.
TARGET PRESSURE:
In the
[
CONTROL
MENU
]
sub-menu, use
to go to the
TARGET PRESSURE
menu item.
Pressing the
button causes the value to flash.
You can now change (increase or decrease) this value
by pressing
or
. Then confirm the value set by
pressing the
button.
9.5.4
Setting time/date (timer)
The GD Pilot battery can bridge a loss of power lasting
around two weeks. If power is lost for longer periods,
the timer's time and date are lost and have to be re-
entered.
Press the
or
buttons at the same time. Use the
button to go to the [
TIMER
] sub-menu and press the
button. The date and time are displayed there in the
following format:
TU 30.10.07 12:10:34
If you press the
button, the left-hand value (day of
the week) begins to flash. You can now use the
or
buttons to set this. Then confirm the value by
pressing the
button.
All values can now be set in succession using this
procedure. When the last value (seconds) has been set,
the timer is fully set and you can exit the menu by twice
pressing the
+
buttons at the same time.
9.6
Starting the unit
WARNING
If the unit is ready, i.e., the green LED is
flashing, the compressor may automatically
start at any time.
Use the main switch to switch the unit on.
If warning or fault messages appear in the third row of
the display, these first have to be rectified and
confirmed using the
button.
Then start the unit by pressing the
I
button on the
GD Pilot.
9.7
Switching off the unit
The unit is switched off by pressing the
button on
the GD Pilot. However, the unit will only stop after a
soft-stop (minimum 30 seconds).
The soft-stop is preset to protect the compressor.
NOTICE
The unit may only be shut down using the
emergency off button in real emergencies.
When shutting down normally, please use the
button.
Summary of Contents for L23
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