12
Load Delay Timer
:
The star to delta output transition is immediately followed by a load delay time (adjustable) that will inhibit the
load solenoid output from energising until the load delay time expires. Intended to allow the main motor
speed to stabilize and other pre-load functions to occur.
Reload Delay Timer
:
The reload delay time (adjustable) is a period of time immediately following a load to unload event during
which the load solenoid output is inhibited from energising.
Blow Down Timer:
The blow down time (adjustable) immediately follows a main motor stop event. During the blow down time a
start request is recognised but is not initiated until the timer expires. If the optional internal pressure
detection feature is enabled the restart inhibit is also dependant on internal pressure falling below the ‘start
inhibit pressure level’ (adjustable). Failure of internal pressure to fall below the set pressure level for a period
of two minutes after the set blow down timer expires will result in a blow down trip fault. The remaining time
in seconds is show on the Information Item display.
Standby Run-On-Time:
When off load the standby run-on-timer will start. If the compressor remains in an off load condition and the
timer expires the main motor will stop and the compressor will enter the Standby state. The compressor will
automatically re-start and load as required. This function is intended to improve efficiency during low demand
periods and to limit the number, and interval between, motor start events. The remaining time in seconds is
show on the Information Item display.
Stop Run-On-Time:
When stopped (stop button, remote stop input or remote stop command) the compressor will unload and the
main motor continue to run for the stop run-on-time before stopping. This function is intended to allow for
internal pressure venting and to limit lubrication oil aeration prior to the main motor stopping. The remaining
time in seconds is show on the Information Item display.
Started State:
The unit has been started (start button, remote start input or remote start command) and is in an active
condition ready to respond to changes in delivery pressure.
Running State:
The unit is in the Started state AND the main motor is running.
Loaded State:
The unit is in the Started state AND Running state AND the load solenoid output is energised.
