User Guide | Intelligent Purging System (IPS 8) for Ammonia - Technical data, installation and use
22 | BC306932151284en-000201
© Danfoss | DCS (ms) | 2020.01
Register Parameter Name Description
User
Level
Min Value Max Value
Default
Value
Unit/
Type
Read/
Write
Modbus
Function
Code
Modbus
Data Type
Persistent
Yes/No
UNIT CONFIG >
LIMITS SETTINGS
3027
Advanced Setting -
TempSensMin
Recommend default
setting only - Limit for
min temperature
3 -100,0 130,0 -50 °C R/W 3/6 Short Yes
3028
Advanced Setting -
TempSensMax
Recommend default
setting only - Limit for
max temperature
3 -100,0 130,0 120 °C R/W 3/6 Short Yes
3029
Advanced Setting -
BPLMin
Recommend default
setting only - Limit for
min pressure (ref)
3 -1,0 25,0 0.1 bar R/W 3/6 Short Yes
3030
Advanced Setting -
BPLMax
Recommend default
setting only - Limit for
max pressure (ref)
3 -1,0 25,0 24 bar R/W 3/6 Short Yes
3031
Advanced Setting -
BPHMin
Recommend default
setting only - Limit
for min pressure
(ammonia)
3 -1,0 59,0 1 bar R/W 3/6 Short Yes
3032
Advanced Setting -
BPHMax
Recommend default
setting only - Limit
for max pressure
(ammonia)
3 -1,0 59,0 24 bar R/W 3/6 Short Yes
3033 Comp Diff
Differential pressure -
start/stop
3 0,0 5,0 0.5 bar R/W 3/6 Short Yes
3034 Setpoint
Pressure threshhold
for compressor
2 0,0 12,0 6.5 bar R/W 3/6 Short Yes
3035 Tsh Setpoint for superheat 2 5,0 40,0 15 °C R/W 3/6 Short Yes
UNIT CONFIG >
MANUAL START
3036
Advanced Setting -
Man Start
Recommend default
setting only - This
engages 14 relays
on the unit - only for
factory
0: NO
1: YES
3 0 1 0 Enum 2 R/W 3/6 Short Yes
STATUS VAR > MCX
DESIGN HOTSPOTS
1859 Reset Alarms Reset alarm 0 0 2 0 N/A R/W 3/6 Short Yes
8101 SystemOnOff
Feedback from the
main switch
0 -32768 32767 0 Enum 1
Read
only
3 Short No
8102 ValveStatus
Feedback from the
purge valve - open/
closed
0 -32768 32767 0 Enum 1
Read
only
3 Short No
8103 CompressorStatus
Feedback from the
compressor - on/off
0 -32768 32767 0 Enum 1 R/W 3/6 Short Yes
8104 ALARActive
Any alarm active
indicator
0 -32768 32767 0 Enum 2
Read
only
3 Short No
8105 PressTotemp
Suction temperature
(calculated from
pressure on suction)
0 -327,7 327,7 0 °C
Read
only
3 Short No
8106 ValveCount
The amount of purge
valve activations
0 -2147483648 2147483647 0 N/A
Read
only
3 Long No
8108 ComprTime
Remaining time for
compressor pull-down
for the actual purge
pointr cycle
0 -2147483648 2147483647 0 Minutes
Read
only
3 Long No
8110 COmprStartAfter
The delay between
the purging cycles
0 -2147483648 2147483647 0 Minutes
Read
only
3 Long No
9901
Advanced Setting -
ResetMem
Recommend default
setting only - All
logged values are
reset
0: NO
1: YES
0 0 1 0 Enum 2 R/W 3/6 Short Yes
8112 ValveHour
The amount of hours
that the main purge
valve has been active
0 -214748364,8 214748364,7 0 Hours
Read
only
3 Long No
8114 StatusKL
Status of KL01 relay
(compressor and
crankcase heater)
0 -32768 32767 0 Enum 2
Read
only
3 Short No
8115 WaringCompr
Indicates problem
with compressor
status
0 -32768 32767 0 Enum 2
Read
only
3 Short No
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