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Table 21. Chiller / Compressor alarms / Faults listing (continued)
Description
Code
a4N
TC4 ANC - SCR Temperature
a4O
TC4 ANC - Super Heat
A92
Evaporator low flow rate alarm
A94
Condenser low flow rate alarm
A95
Master connection lost
N01
Network Error
N02
Master Error
N03
Alarm Node 1
N04
Alarm Node 2
N05
Alarm Node 3
N06
Alarm Node 4
A01
General alarm
S01
Ambient Temp Sensor Fault
S02
Free Cool LW Temp Sensor Fault
S03
Evap DP Sensor Fault
S04
Cond DP Sensor Fault
PF1
Chiller Pump 1 Fault
PF3
Condenser Pump 1 Fault
PA1
Chiller Pump 1 Flow Alarm
PA3
Condenser Pump 1 Flow Alarm
PF2
Chiller Pump 2 Fault
PF4
Condenser Pump 2 Fault
PA2
Chiller Pump 2 Flow Alarm
PA4
Condenser Pump 2 Flow Alarm
TF1
Cooling Tower Fault
S05
Wet Bulb Temp Sensor Fault
(a)
Reset – type of the alarm / fault reset:
•
"– 1". Automatic – when the alarm occurs the reset is done automatically if the alarm conditions no longer persist.
•
"0". Manual – when the alarm occurs, the reset has to be done compulsorily by the user (maintainer or service) by pressing a key combination on the user interface.
•
">0". Semiautomatic – alarm is automatically reset for the "Reset" number of attempts in the specified "Period" of time, but if the alarms occur one more time, it becomes
Manual.
(b)
Period – is the period of time where the alarm can occur for "Reset" number of times (minutes) with the automatic reset and without becoming manual.
(c)
Startup – is the delay (second) in the alarm during the startup phase.
(d)
Steady – is the delay (second) in the alarm during the steady phase.
(e)
Active in Off – if this box is checked the alarm will be enabled even if the machine is in OFF condition.
(f)
Alarm Relay – if this box is checked, when the alarm occurs the corresponding digital output (configured in the "Digital Output" tab as "Alarm") will be activated.
(g)
Warning Relay – if this box is checked, when the alarm occurs the corresponding digital output (configured in the "Digital Output" tab as "Warning") will be activated.
(h)
Compressors – with this column there is the possibility to stop/run for security reasons the compressors when the alarm occurs. There are two options:
•
OFF – when alarm / fault occurs compressors stop.
•
INTERLOCK – when alarm / fault occurs compressors lock out.
Note: For a complete list of compressor, motor and bearing
faults:https://files.danfoss.com/download/Drives/
Service%20Manual%20(M-SV-001-EN%20Rev.%
20E).pdf
ARTC-SVX007A-EN
Reset
(a)
Period
(b)
Start-up
-1
0
0
-1
0
0
5
60
5
5
60
5
-1
0
15
-1
90
60
-1
90
60
-1
90
60
-1
90
60
-1
90
60
-1
90
60
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
-1
60
5
Alarm
Active
(c)
Steady
(d)
in Off
(e)
Relay
0
X
0
X
5
5
0
60
60
0
X
0
X
0
X
0
X
1
X
5
X
5
X
5
X
5
X
1
X
1
X
5
X
5
X
1
X
1
X
5
X
5
X
1
X
5
X
Chiller Troubleshooting
Warning
Compressors
(f)
Relay
(g)
X
-
X
-
X
INTERLOCK
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
X
-
(h)
71
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