CompAir 5280D.1.IAC Operator's Handbook Manual page 108

App 408 Customer PET controller installation guide & user's manual
Page 12
Parameter
Starts/hour This safety feature prevents the compressor
from starting too often in order to protect the
motor against overheating. The controller uses
an advanced start per hour handling program
and when the limit of the number of starts is
reached it will prevent the motor from stopping
when running unloaded.
NOTE The system does not prevent manual
start/stops but takes them into account when
running automatically.
Water flow The time that the water flow digital input fault is
delay overridden after ½ load is engaged.
Star delta The star-delta time is the transition time when
passing from the star relay to the delta relay.
This can also be used for soft start.
ST-delt dl The star-delta delay time is the time between the
release of the star relay and the powering of the
delta relay.
Accel time The acceleration time is the time between the
powering of the delta relay and the powering of
( Load delay the load solenoid valve. The delay is to ensure
time) adequate lubrication before the compressor
goes on load.
Minimum The minimum unload time determines the
unload time minimum time that the compressor has to run
unloaded before switching again to load.
Unloaded run The unloaded run time is the time that the motor
time keeps on running after the stop button has been
pushed. This is to release condensate before
the compressor stops
Blowdown time The blowdown time is required to depressurise
Fan delay The time that the digital output to the fan motor
is delayed after stopping the compressor.
Pump delay The time that the digital output to the cooling
water motor is delayed after stopping the
compressor.
Run hours Total amount of compressor running hours
Half load Total amount of hours the compressor has been
running on ½ load.
Full load Total amount of hours the compressor has been
running on full load.
Stage 3 cycles The number of times the 3
gone below its low pressure level.
Drain open time Opening time of the drain valves to release
moisture from the separators.
Drain closed The time the drain valves are kept closed before
time opening to release the moisture. See manual for
recommended times with various ambient
conditions.
Defaults Reinstalls all the default settings and values to
the original as supplied settings.
*** THESE SETTINGS WILL VARY WITH COMPRESSOR TYPE AND OPERATING DUTY.
GUIDELINES ARE GIVEN IN SECTION 2.2.7.1 TABLE 9A.
App 408C
Function
the compressor internally when the motor stops.
This prevents starting against excessive internal
pressures. This also sets the start delay after a
power failure. Set times at 5sec intervals for
multi m/c installations.
rd
stage pressure has
Default Min.
6 3
20s 1s
5s 3s
50ms 10ms
30s 10s
5s 1s
60s 1s
20s 5s
2 m 1m
15s 1s
0 0
0 0
0 0
0 0
20s 5s
***
15m 3m
***
Max.
10
60s
30s
100ms
60s
60s
120s
60s
5m
120s
99900
99900
99900
99900
30s
45m
Table 9
98155.1015