Display Of The Compressor Control Delcos Xl; Routine Commissioning - CompAir L15 Operating And Service Manual

7. Commissioning
7.3 Display of the compressor control
DELCOS XL
Fig. 16
1. Touchscreen Display
2. Start push-button [ I ]
3. Stop push-button [ O ]
4. red LED Flashing slowly = Warning
Flashing rapidly = fault
5. yellow LED Flashing slowly = Maintenance required
6. green LED Lit up permanently = Unit in operation
Flashing slowly = Unit in standby mode
7. Emergency stop
Warning
The compressor can be automatically
started at any time when it is in standby
mode, i.e. the green LED is flashing.
36
7.4

Routine commissioning

Warning
Make sure before commissioning that
nobody is in the danger zone of the
motor/screw compressor.
After completion of work: Verify that all
safety devices have been refitted and that
all tools have been removed.
Only operate the screw compressor unit
with closed access panels.
For routine commissioning, proceed as follows:
Check oil level in the pressure reservoir (see also
•
chapter 6.5).
Open shut-off valves between the screw
•
compressor, reservoir and pipe.
Ensure cooling water supply in accordance with
•
Chapter 6.3. (only Lxx W – water-cooled units).
Switch on the power supply master switch.
•
After the power supply was switched on, all LEDs
•
on the compressor control DELCOS XL light up for a
display test. The fault shown on the display [power
supply fault] must be acknowledged in the fault
memory menu item prior to starting the unit. (The
display language can be set in the start screen
using the "globe icon".)
After the acknowledgement, the message [READY
•
TO START] appears on the display, unless another
fault is present.
Press START button [ I ] (- 2 - Fig. 16).
•
To switch off the compressor in the usual way use
•
the STOP button (- 3- Fig. 16) and not the
emergency STOP button (-7- Fig. 16). After
shutdown the compressor has a run on time of 30-
50 seconds (soft-stop). The time remaining is
counted down on the display.
Start-up protection of the electric motor
The screw compressor unit will not start up if the final
compression pressure is more than
0.8 bar (11.6 PSI) for L90-L140 or
2.0 bar (29 PSI) for L90RS-L132RS.
Temperature start-up protection
The screw compressor unit will not start up if the ambi-
ent temperature is lower than + 1 °C (33.8 °F).