DK-40 USER MANUAL V2.6 (02.08.2011)
K13D01-E - 12 -
Start procedure:
If mains phase voltages and frequency are between preset limits and the phase order is
correct, then the POWER led will turn on. The compressor may run only when the power
led is on. Otherwise it cannot run.
The Run mode of operation is selected by pressing the RUN
button or by sending
REMOTE START/STOP signal (if enabled). At this position, when the pressure falls below
P05 Start Pressure
(or pressure switch closes) the unit decides to run the compressor.
Befor running the compressor the STAR relay output becomes active. After
P15 Delay
between Relays Timer
LINE relay will be activated. Thus the motor starts in star mode.
After
P23 Star Timer
the STAR relay opens and after
P24 Star/Delta Transition Timer
the
DELTA relay operates.
After
P25 Timer before Loading
the LOAD relay operates and the compressor starts
producing compressed air.
Unloading and reloading:
When the pressure reaches
P04 Stop Pressure
(or pressure switch opens) then the LOAD
relay opens and the compressor runs unloaded during
P26 Unload Timer
. If the pressure
falls below P05 Start Pressure before the expiration of the timer, then the LOAD relay
energizes again.
Stopping and restarting:
If the pressure stays over the
P05 Start Pressure limit
(or pressure switch opened) during
P26 Unload Timer
, then the DELTA relay will release. After
P15 Delay between Relays
timer, the LINE relay releases.
In this situation, the RUN led starts flashing.
The maximum number of starts that the compressor may perform in one hour is adjusted
with
P37 Maximum Starts per Hour
parameter.
If the maximum start count is reached, then the compressor stopping is disabled and it will
continue to run unloaded until the end of 1 hour period.
