Emerson Dixell iChill IC200D EVO Series - Page 128

1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 128/192
OIL ALARM FROM PRESSOSTAT SWITCH OR OIL LEVEL SWITCH (screw)
Occasionally it is possible to find both the safety systems, the delay, the active input duration and the
number of events per hour allow to set-up both the protections.
Par. AL11 Oil alarm delay after on compressor.
It allows to set a time delay before signalling the oil or the oil level switch alarms after the on compressor.
Par. AL12 Duration of the pressure switch / oil level switch in normal operating conditions.
Duration of the oil level switch activation during normal running condition.
It allows to set the time delay before signalling the alarm. AL11 defines the delay counting, it helps to
override the low pressure or the low oil level determined, for example, by a new partialization step of the
compressor itself.
Par. AL13 Maximum number of alarm events per hour.
It determs the maximum number of alarm events before switching the restart from automatic to manual.
C1Pd - C2Pd – compressor oil differential pressure
Label on alarm
visualization menu
C1Pd (compressor 1)
C2Pd (compressor 2)
Origin
Pistons compressor:
Compressor oil pressure – evaporating pressure < AL78
Screw compressor:
Condensing pressure – compressor oil pressure > AL78
Reset
Pistons compressor:
Compressor oil pressure – evaporating pressure > AL78 + AL79
Screw compressor:
Condensing pressure – compressor oil pressure < AL78 - AL79
Restart
Automatic – Manual after AL80 events per hour (Reset procedure in Menu
function).
Symbol
On the display the symbol is blinking
Action
Alarm Relay and buzzer on
Compressor / circuit involved
OFF
If more than one compressor is configured in the circuressors are OFF
C1tr - C2tr - C3tr - C4tr – C5tr - C6tr Compressor overload alarm
Label on alarm
visualization menu
C1tr (Compressor 1 overload alarm) -…C6tr (Compressor 6 overload alarm)
Origin
With active digital input.
The alarm is not detected within the AL19 time delay after the on compressor
Reset
When the digital input is not active
Restart
AL77=0:
 Manual reset in Alrm menu if AL20=116
 Manual reset in cOtr menu; if AL20=0 or number of alarm per hour =
AL20, password is requested
AL77=1:
 Automatic reset if the nummer of alarm per hour < AL20 or if AL20=16
 Manual reset in Alrm menu if the nummer of alarm per hour = AL20
Symbol
On the display the symbol is blinking
Action
Alarm relay + buzzer ON
Compressor involved
OFF if AL47=0 or AL47=1
Compressor not involved
OFF if AL47=1
noL Keyaboard Alarm
Label on alarm
visualization menu
keyaboard Alarm description
noL
No data communication between the keyaboard and the regulator.