Danfoss IPS 8 Technical Data, Installation And Use page 19

User Guide | Intelligent Purging System (IPS 8) for Ammonia - Technical data, installation and use
Table 03
Occurring active alarms, possible reasons and recommended action
Label Parameter Name Description
ALARMS
A01 General alarm Input from AI3 Leads to shut down of IPS 8
Indicates no signal from temperature sensor
E01 Temp Sensor Fault
(R452a)
Indicates no signal from temperature sensor
E01 Temp Sensor Fault
(R452a)
Indicates no signal from temperature sensor
E01 Temp Sensor Fault
(R452a)
Indicates no signal from pressure transmitter
E02 BPL Sensor Fault
(R452a)
Indicates no signal from pressure transmitter
E02 BPL Sensor Fault
(R452a)
Indicates no signal from pressure transmitter
E02 BPL Sensor Fault
(R452a)
Indicates no signal from pressure transmitter
E03 BPL Sensor Fault
(R717)
Indicates no signal from pressure transmitter
E03 BPL Sensor Fault
(R717)
Indicates no signal from pressure transmitter
E03
BPL Sensor Fault
(R717)
Indicates too low ambient temperature
E04 Low temperature
(<-10 °C)
Indicates too high ambient temperature
E05 High temperature
(>120 °C)
E05 High temperature Low R452a charge because of possible leak
E06 Low pressure BPL Indicates too low R717 pressure
E07 High pressure BPL Indicates too high R717 pressure
E08 Low pressure BPH Indicates too low R452a pressure
E09
High pressure BPH Indicates too high R452a pressure
E10
System is OFF Indicates status of the main switch
E11 Memory is full A memory reset is required
This occurs when PLT is activated System will
E12 Totla purge time error
automatically restart when CST has expired
Indicates no status is being received from
E13 Compressor ERROR
relay KL01
Signal from the LLS that there is liquid in the
E14 Liquid alarm
evaporator
Wrong counter values The unit will
E15 Memory wrong!
automatically repair itself
E16
Discharge sensor error Indicates no signal from temperature sensor
E17
Suction sensor error Indicates no signal from temperature sensor
All alarms except (*) activates red light on box outside
For alarms not resettable and/or cause not identified, please contact Danfoss
Level legend: 0 = Read view, 2 = Installer view (code 200) 3 = Danfoss Service view (Contact Danfoss)
© Danfoss | DCS (ms) | 2020.01
Possible Reason
Fault in system connected to the DIO4
Broken wire to R452a temperature sensor
Electrical supply failure supplying R452a
temperature sensor
Temperature measurement of the R452a line
is out of range
Broken wire to R452A pressure transmitter
Electrical supply failure to the R422a pressure
transmitter
Pressure measurement of the R452a line is out
of range
Broken wire to R717 pressure transmitter
Electrical supply failure to the R717 pressure
transmitter
Pressure measurement of the R717 line is out
of range
Too low ambient temperature
Too high ambient temperature
Locate and repair leak Evacuate
Closed stop valve
Ammonia system pressure too high
Low R452A charge
R452s system pressure too high
Main switch is OFF
Memory is full from long time operation
Restrictor is blocked
Possible broken wire from the MCX
Recommended action
Input from AI3 Leads to shut down of IPS 9
Repair temperature sensor wire or replace
temperature sensor
Repair or replace power source
Compare temperature with another
temperature sensor reading and replace
temperature sensor if needed
Repair pressure transmitter wire or replace
pressure transmitter
Repair or replace power source
Compare pressure with another pressure
reading and replace pressure transmitter if
needed
Repair pressure transmitter wire or replace
pressure transmitter
Repair or replace power source
Compare pressure with another pressure
reading and replace pressure transmitter if
needed
Move the IPS to a higher ambient temperature
Move the IPS to a lower ambient temperature
Move the IPS to a lower ambient temperature
Open inlet stop valve
Wait for lower pressure
Find and repair leak, evacuate and recharge
with R452a
Wait for lower pressure
Switch ON the main switch
Clean MCX memory by means of finding
Parameters_UnitConfig_
Replace the restrictor
Repair broken wire from the MCX
BC306932151284en-000201 | 19