10 Programmable Inputs and Outputs
Gardner Denver
38
10.1.6
Warn. Condens. Drain
This could be set to display a warning message (A609)
if the water level in a condensate drain was close to full.
10.1.7 Air
Filter
This optional monitoring feature could be set to display
a warning (A611) if the Air Filter’s Differential Pressure
switch indicated it needed cleaning or changing.
10.1.8 Water
Filter
This optional monitoring feature could be set to display
a warning (A624) if the Water Filter’s Differential
Pressure switch indicated it needed cleaning or
changing.
10.1.9
Auto. Motor Greasing (if model is equipped
with an automatic motor greasing system)
This can be set to monitor the operation of automatic
motor greasing units.
10.1.10 External Speed Limit
This can be used to temporarily limit the upper motor
speed of the compressor as set in
Settings >
Configuration
Menu.
This function could be used if, for example, there was a
power failure and the factory had transferred to a stand-
by generator. The reduced motor speed could reduce
the maximum load on the generator.
10.1.11 Override Timer Start
If the compressor was switched off according to the
settings in the
Timer Start/Stop
Menu (see chapter
11.3),
this function will override the timer and start the
compressor as long as the input is activated.
This allows the machine, for example, to be started by
maintenance personnel during a weekend when the
timer would normally have shut down the machine.
10.1.12 Pressure Band p2
This function switches the pressure band over to the
alternative p2 pressure band, as defined in
Settings
> Control
. When this function is active, the
Home
screen displays that the p2 pressure band is currently in
use and that it has been activated by a programmable
input. The programmable input channel number is also
displayed.
10.1.13 Enable Sensor B1
Ordinarily the controller monitors the line pressure via
sensor B1 to determine when to load and unload the
compressor.
If this function has been assigned to a programmable
input and that programmable input's terminals are open,
the controller will still read and display the line pressure.
However, it will ignore the values for purposes of
loading the compressor.
Note
An open input will unload the compressor.
Closing this programmable input re-enables the
sensor’s influence on the compressor's loading and
unloading.
10.1.14 Enable Remote Load
This input enables/disables the “Remote Load” feature
(see below).
10.1.15 Remote Load
When enabled (see above), this allows fixed rotational
speed machines to be remotely loaded and unloaded.
VS
SM 1786
