BOGE FOCUS compressor control for piston compressors
Page 15
FOCUS
1.4
Settings
Here the upper pressure target value for pressure range 2 is set. As soon as
the net pressure has reached
p
max
the compressor leaves load run.
Pressure range 2 is only active if corresponding adjustments of the timer have
been made and / or the external contact for the pressure range selection is ac-
tive.
P015 p
min
Pressure range 2
Pressure range 2 offers the possibility for pressure decreases and the value
must not be set above that of pressure range 1.
Here the lower pressure target value for pressure range 2 is set. As soon as
the net pressure drops below
p
min
, the compressor starts with the output.
Pressure range 2 is only active if corresponding adjustments of the timer have
been made and / or the external contact for the pressure range selection is ac-
tive.
P020 Auto-Restart
Switching On / Off of the Auto Restart function (network independent on-off
memory).
Normally the version display is shown after a power failure, which must be
acknowledged by actuating the
OFF key
before the control displays the
Off-status and the alarm relay returns to the status "no fault".
If the Auto Restart function is active and the compressor was previously
switched-on an adjustable count down is started after power recovery (Auto
Restart time P021).
When this time is elapsed the compressor automatically returns to the Ready
status. The pressure control is active and on demand the compressor resumes
the output.
If P020 is set to the value 1 and Auto Restart is activated. If the value 0 is set
the Auto Restart is deactivated.
When switching-off the compressors with the Emergency-Off button the Auto
Restart function is not active.
P021 Auto restart time
The time set here in seconds is the time that passes after return of the mains
voltage before the compressor is started again in case of auto re-start and / or
remote start / stop.
P022 Suction pressure monitoring delay
This parameter is the delay time for the suction pressure infeed monitor in sec-
onds. The time commences once the suction pressure (booster pressure) un-
dercuts the value of parameter P042 with the motor running. If the value con-
tinually remains below the threshold value of parameter P042 during the set
period of time, the compressor is stopped and a corresponding fault message
issued.
Note!
If
p
max
is set so that
p
min
is larger or the minimum hysteresis (P011) is not
complied with, confirming it with the
-key will force you to edit P015.
