15
(6&
5(6(7
(17(5
ESC
RESET
ENTER
5
EN
START-UP AND OPERATION
COMMAND AND PROGRAMMING KEYPAD
1 Scroll menu \ change values keys
2 Enter key –
to confirm settings
3 Esc key –
to return to the previous menu
4 Reset –
to silence the alarms
5 0 / Off key –
shut-down - STOP
6 I / On key –
start-up - START
Compressor Functioning
Start-up procedure:
Press the
START (I)
button. If no alarms are on, the start-up cycle activates:
Stand-by for start-up
: the control unit is waiting to verify the following conditions before starting the compressor:
-If the machine was switched off or a previous stoppage was executed, the control unit waits 15 seconds before
starting the compressor.
-The control unit waits for the pressure to go below the value set in the “Load pressure” set before starting the
compressor. (
“STAND -BY”
is displayed)
- Star compressor start-up:
the line and star remote control switch for the time defined in the parameter “Star/delta
time” (
“NO LOAD ”
is displayed)
-Transition from star to delta:
the remote control switch for the line remains active, while the star relay is deactivated;
this phase lasts for the set time of 20 msec. (
“NO LOAD ”
is displayed)
-Fully operational compressor start-up
: the line relay is maintained active and also the delta relay is activated; this
phase lasts for the time set in the parameter “Load delay”. (
“NO LOAD
” is displayed)
-Compressor loading phase:
the solenoid valve relay of the load is active. This phase lasts until the pressure
measured reaches the pressure set in the parameter "No load pressure". (
"LOADED"
is displayed)
-Compressor no load phase:
the solenoid valve relay of the load is deactivated; this phase lasts as long as set in
the parameter “No load time”. After this, the cycle re-starts from the Start-up stand-by phase
(
“NO LOAD
” is displayed)
2 - CONTROL PANEL
The compressor is fitted with a “control panel” for setting up and monitoring machine operation. The operating parameters were
entered by the Manufacturer during “testing”. The parameters were tested for several hours in the various operating conditions.
The features offered by this electronic control system includes:
• Fully automatic compressor operation.
• Real-time operating parameter display.
• Customization operating parameter.
•
Programming of compressor operation on a daily or weekly basis.
•
Programming and signalling of the Manufacturer’s maintenance schedule.
•
Machine self-protection system to signal fault pre-alarms and automatically stop the machine in the event of serious problems.
•
Remote machine control.
•
Possibility of connecting the compressor to other similar compressors with the same controller for integrated management
of the set of machines.
•
Remote compressor monitoring via personal computer and dedicated software (optional).
NOBEL DV 45-55_NOBEL 75 E DV CSA - Cod.197EE0696ML - Rev.0 02/2020
