Chicago Pneumatic CPF 175, Instruction Book

Page: 47 / 152

Structure Definition Minimum Maximum
Setpoint 1: the
compressor will try to
maintain this pressure in
the network if this setting
is selected. 4 bar (58 psi) Value of
parameter
Setpoint Limit
Safety menu
Setpoint pressure 2: the
compressor will try to
maintain this pressure in
the network if this setting
is selected. 4 bar (58 psi) Value of
parameter
Setpoint Limit
Safety menu
Selection of the setpoint
pressure to be applied
for operation of the
compressor. Setpoint 1 Setpoint 2
Value added to the
current setpoint
pressure above which
the compressor will
switch to no-load
operation. 0.1 bar (1.4 psi) 10.0 bar (145 psi)
Value added to the
actual setpoint pressure
above which the
compressor will stop and
switch to default. No
error is generated. Value of previous
parameter 1.5 bar (21.7 psi)
Minimum rotation speed
of the main compressor
motor. This new setpoint
is only taken into
account when it is
greater than the
standard minimum
speed. 460RPM depends
on the compressor 900RPM depends
on the
compressor
Percentage maximum
speed reduction. Allows
the user to limit this
maximum speed for
certain applications. 75 % 100 %
If the unloaded running period is too long (if the pressure remains high in the customer network -- due to
decreased demand for air, for example), the compressor will stop automatically (the period depends on the
parameter Progr. Stop Time in the menu Conf. Distri). The compressor will be ready to restart if the pressure
drops again below the setting of Loading Pres. 1.
The pressure bands used can also be configured in the menu clock for using the weekly programming of start-
stop cycles.
Instruction book
2920 1804 00 45