ahlsell ENERGY FLEX SKP 20, User Manual

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12 SKP 20
2. Diagnostics
2.1 Alarms
2.2 Digital alarm
2.3 Analog alarms
2.4 Alarm table
Preliminary precautions
• The control panel allows you to make all the necessary adjustments to the chiller operation and to view the values of the
main parameters and alarms. The control panel is located on the front panel of the electrical board.
The “Energy SBA600” performs full installation diagnostics and reports a variety of alarms.
Parameters for alarm activation and resetting can be viewed and configured in folder
AL (parameters AL00…AL82) (see User Interface and Parameters section).
2.1.1 Automatic reset
For automatic reset alarms, normal operation is restored as soon as the cause of the alarm has been
removed.
2.1.2 Manual reset
Alarms can be manually reset by pressing and releasing the [UP + DOWN] keys
Normal operation can only be reset
• by pressing a key on the instrument keyboard and
• only if the cause of the alarm has been removed.
2.1.3 Alarm mute
Alarms can be acknowledged by pressing any key.
acknowledging an alarm has no effect on the alarm generated other than on the alarm
LED, which goes from fixed to flashing.
An alarm has two effects:
• It blocks the services concerned
• Message on the keyboard display alternates with a message on the main display.
The next two sections summarize alarms grouped by type (digital or analogue).
Alarm code and alarm parameters are in bold (folder PAr/AL)
2.1 Alarms
Alar
m c
ode
Name of alar
m
Bypass ac
tiv
ation
ev
en
t
Bypass time
Aut
oma
tic alar
m
ac
tiv
ation time
Manual alar
m
ac
tiv
ation time
Exit alar
m
deac
tiv
ation time
Number of in
ter
ven
tions
per sample time
E001
Circuit 1
high pressure
alarm
None
Not
present
Not
present
Not
present
Not
present
AL10
E002
Circuit 2
high pressure
alarm
None
Not
present
Not
present
Not
present
Not
present
AL10
E005
(NOTA 4)
Circuit 1
low pressure
alarm
Circuit
compressor
activated
or reversal
of 4-way valve
(NOTE 1)
(NOTE 4)
AL11
(NOTA 4)
Not
present
Not
present
Not
present
AL12
Alar
m c
ode
Name of alar
m
Bypass ac
tiv
ation
ev
en
t
Bypass time
Aut
oma
tic alar
m
ac
tiv
ation time
Manual alar
m
ac
tiv
ation time
Exit alar
m
deac
tiv
ation time
Number of in
ter
ven
tions
per sample time
E006
(NOTA 4)
Circuit 2
low pressure
alarm
Circuit
compressor
activated
or reversal
of 4-way valve
(NOTE 1)
(NOTE 4)
AL11
(NOTA 4)
Not
present
Not
present
Not
present
AL12
E020
(NOTA 2)
Primary circuit
flow switch
alarm
Internal circuit
pump activation
(One of the two
pumps)
AL14 AL15 AL16 AL15
Not
present
E025
(NOTA 3)
Primary circuit
pump thermal
switch alarm
External circuit
pump activation AL17
AL18 AL19 AL18
Not
present
E010
Compressor 1
thermal switch
Compressor 1
switched on
AL20
Not
present
Not
present
Not
present
AL21
E011
Compressor 2
thermal switch
Compressor 2
switched on
AL20
Not
present
Not
present
Not
present
AL21
E012
Compressor 3
thermal switch
Compressor 3
switched on
AL20
Not
present
Not
present
Not
present
AL21
E013
Compressor 4
thermal switch
Compressor 4
switched on
AL20
Not
present
Not
present
Not
present
AL21
E015
(NOTE 2)
Compressor 1 oil
pressure switch
Compressor 1
switched on
AL22
Not
present
Not
present
Not
present
AL23
E016
(NOTE 2)
Compressor 2 oil
pressure switch
Compressor 2
switched on
AL22
Not
present
Not
present
Not
present
AL23
E017
(NOTE 2)
Compressor 3 oil
pressure switch
Compressor 3
switched on
AL22
Not
present
Not
present
Not
present
AL23
E018
(NOTE 2)
Compressor 4 oil
pressure switch
Compressor 4
switched on
AL22
Not
present
Not
present
Not
present
AL23
Er40
Primary exchanger
fan thermal switch
None
Not
present
Not
present
Not
present
Not
present
AL24
Er41
External exchanger
fan thermal switch
Circuit 1
None
Not
present
Not
present
Not
present
Not
present
AL25
Er42
External exchanger
fan thermal switch
Circuit 2
None
Not
present
Not
present
Not
present
Not
present
AL25
E021
Primary circuit
pump 1 thermal
switch
None
Not
present
Not
present
Not
present
Not
present
AL26
2.2 Digital alarms