BOGE FOCUS compressor control for piston compressors
Page 19
FOCUS
1.4
Settings
P066 Key switch
The function of the key switch is set here:
The settings for external output release (P064) and Remote-Start-Stop (P065)
have to be effectuated separately under the corresponding parameter num-
bers.
P067 Input 42 causes Fault 91
Normally there are three possibilities for a pressure range switch:
1. via integrated switch clock,
2. via data Bus and
3. via (external) switch contact at input 42, if P067 shows the value 0.
If P067 is set to1, point 3 is no longer valid.
Input 42 serves as compressor switch off by means of an optional monitoring
device when its contact is opened - fault message 91 is shown.
P070 Base load switching: determine number of involved compressors
The base load switch control (see „ Base load switch control with additional
compressors“, page 25) allows several linked compressors in turns to produce
the required quantity of compressed air. This parameter serves to determine
the number of compressors which are to be controlled by a master FOCUS in
the base load switching mode. The base load switch control is designed for
compressors of the same size.
Calling parameter P070 enables you to set a value between 1 and 4 by means
of the
keys
/ :
After setting the required value, press the
ENTER key
in order to confirm
data entry. Then use parameter P071 to determine the base load switching in-
terval time (Exception: the value is set at 1 while the base load switching func-
tion is deactivated.).
Setting
Meaning
0
The key switch has no function, it is deactivated.
1
When actuating the key switch, the function Remote-Start-Stop is acti-
vated.
2
When actuating the key switch the external output release is activated.
3
When actuating the key switch both the external output release as well
as the Remote-Start-Stop function are enabled.
Setting
Meaning
1
The basic load mode function is deactivated because only one compres-
sor is involved.
2
Two compressors are to be involved in the base load switching mode.
3
Three compressors are to be involved in the base load switching mode.
4
Four compressors are to be involved in the base load switching mode.
