Control System; General; Keys; Status Indicator (Display / Light Signals) - Gardner Denver L15 Original Operating Manual

9. Control system

9 Contr ol s yst em
9.1

General

This Section is used to quickly commission the unit.
The control system is explained in detail in the separate
GD PILOT operating instructions.
When the unit has been switched on for the first time,
the POWER LOSS fault appears on the display. This fault
must be acknowledged using
message, the compressor is not defective.
When supplied, the display language is set to English.
To set another language, see Section 9.5.1.
73ºC 10,4bar 10,3bar
TOTAL RUNNING
Fig. 15
9.2

Keys


Switch on unit
I

 Switch off unit
The three keys on the right next to the display have a
dual function:
 
 +

Call up or exit menu,
at the same exit menu / sub-menu
time

Switch to next sub-menu / menu item,

or reduce a value

 Switch to previous sub-menu / menu
item, or increase a value
Acknowledgement key,
if you are in a menu / sub-menu, the
acknowledgement key functions as an
Enter key [↵].
32
. This is a routine
4711h
ON-LOAD
9.3 Status indicator (display / light
signals)
The control system is fitted with a three-row display.
1st row:
The final compression temperature, final compression -
pressure and network pressure are permanently
displayed here.
Final compression temperature: is the temperature
measured downstream of the compressor stage.
Final compression pressure: is the pressure measured
downstream of the compressor stage.
Network pressure: is the pressure within the system
connected downstream of the compressor.
2nd row:
The second row is reserved for the menu. You can view
values like the total service hours and set values like
the nominal pressure in the menu.
3rd row:
The third row shows status, fault and warning -
messages.
Light signals
The GD PILOT is fitted with two light signals (red,
green).
Red light signal:
Flashing slowly: warning, maintenance due
Flashing rapidly: fault, unit is stopped until fault has
been rectified
The red light signal only goes out once the warning or
fault has been remedied properly.
Green light signal:
Flashing: system is ready, i.e. the motor
may start up automatically at any
time.
Lit up permanently: the drive motor is running