34
Compressor 1
Back with
ä
Compressor stop
SC:HC
18/07/2017
11:45:20
OFF
SM:PM2
5K
A
D
G
F
B
C
E
Fig. 13
A
Component whose status has changed.
B
Event (reason for the status change)
C
Date and time of the status change
D
Set status:
"ON"
or
"OFF"
E
Preset condition or limit for the status change with
unit
F
State machine
"SM"
: Control circuit that has trig-
gered the status change.
G
"SC"
: Hydraulic circuit to which the status change
relates.
Component
A
Component
A
Meaning
"Compressor 1"
Compressor
"Primary source 1"
Primary pump: Not connected
"Secondary
pump 1"
Secondary pump: Not connec-
ted
"LPG solenoid
valve 1"
Shut-off valve in the refrigerant
circuit
"Central fault mes-
sage"
Central fault message
"Methods"
Several system components si-
multaneously
Note
■
Only one event is indicated for each status change.
■
If a status change depends on several interlinked
events, it is always the last event that is indicated.
Events
B
Event
B
Causes
"Start hysteresis reached"
Set temperature exceeded or undershot by hysteresis.
"Stop hysteresis reached"
Set temperature exceeded or undershot by hysteresis.
"Power-OFF enabled"
Jumper at terminals X3.6/X3.7 is not inserted.
"Compressor stop"
■
Compressor has stopped. There is no longer a demand.
or
■
A fault has occurred.
"Integral value reached"
Integral for starting a component or a function has
exceeded
the start thresh-
old.
"Integral value undershot"
Integral for starting a component or a function has
undershot
the start thresh-
old.
"Pump run-on"
Run-on time of a circulation pump is active: Of no significance, as no circula-
tion pump is connected.
"Demand externally"
"Demand externally" function active.
"Block externally"
"External blocking" function active.
"Output at zero"
No more demand for the compressor.
"EEV shutdown"
Operating point outside application limits or refrigerant circuit controller fault
(observe
"Diagnosis"
"Refrigerant circuit"
"Message history"
)
"Refrigerant circuit fault"
Refrigerant circuit locked
"Frost protection"
Temperature at the condenser too low
"Safety chain"
Safety chain interrupted
"Primary temperature outside
application limits"
Primary circuit flow temperature outside the control limits, observe message
"CB Flow temp. primary"
.
Diagnosis
System
(cont.)
5800 917 GB
Diagnosis
