User Guide
MES 1003 WMS
Doc no. 100837-MAN – Rev. E1 – Rev. date 2022-10
© Danfoss IXA A/S | Page 55
Alarm name
Alarm description
Trigger
Consequence
Possible cause (Troubleshooting)
SP3 Pressure
sensor
disconnected
[A168]
The WMS controller
has lost connection
to the pressure
transmitter in WSU 3
Alarm if the WMS
controller loses
connection to the
pressure transmitter in
WSU 3
Power for sample pump 3 to
be disconnected, and the
sample point ignored in the
cyclical sampling sequence.
All stored sensor values for
SP3 to be set to -1.
1. Connector to pressure transmitter
unplugged
2. Defect sensor
3. Damaged cable or loose connection
SP4 Pressure
sensor
disconnected
[A170]
The WMS controller
has lost connection
to the pressure
transmitter in WSU 4.
Alarm if the WMS
controller loses
connection to the
pressure transmitter in
WSU 4.
Power for sample pump 4 to
be disconnected, and the
sample point ignored in the
cyclical sampling sequence.
All stored sensor values for
SP4 to be set to -1.
1. Connector to pressure transmitter
unplugged
2. Defect sensor
3. Damaged cable or loose connection
SP1
Temperature
sensor
disconnected
[A172]
The WMS controller
has lost connection
to the temperature
transmitter in WSU 1.
Alarm if the WMS
controller loses
connection to the
pressure transmitter in
WSU 1.
Power for sample pump 1 to
be disconnected, and the
sample point ignored in the
cyclical sampling sequence.
All stored sensor values for
SP1 to be set to -1.
1. Connector to temperature transmitter
unplugged
2. Defect sensor
3. Damaged cable or loose connection
SP2
Temperature
sensor
disconnected
[A174]
The WMS controller
has lost connection
to the temperature
transmitter in WSU 2.
Alarm if the WMS
controller loses
connection to the
pressure transmitter in
WSU 2.
Power for sample pump 2 to
be disconnected, and the
sample point ignored in the
cyclical sampling sequence.
All stored sensor values for
SP2 to be set to -1.
1. Connector to temperature transmitter
unplugged
2. Defect sensor
3. Damaged cable or loose connection
SP3
Temperature
sensor
disconnected
[A176]
The WMS controller
has lost connection
to the temperature
transmitter in WSU 3.
Alarm if the WMS
controller loses
connection to the
pressure transmitter in
WSU 3.
Power for sample pump 3 to
be disconnected, and the
sample point ignored in the
cyclical sampling sequence.
All stored sensor values for
SP3 to be set to -1.
1. Connector to temperature transmitter
unplugged
2. Defect sensor
3. Damaged cable or loose connection
SP4
Temperature
sensor
disconnected
[A178]
The WMS controller
has lost connection
to the temperature
transmitter in WSU 4.
Alarm if the WMS
controller loses
connection to the
pressure transmitter in
WSU 4.
Power for sample pump 4 to
be disconnected, and the
sample point ignored in the
cyclical sampling sequence.
All stored sensor values for
SP4 to be set to -1.
1. Connector to temperature transmitter
unplugged
2. Defect sensor
3. Damaged cable or loose connection
Leakage flow
when
switching
sample point
[A180]
The flow switch has
detected a flow
while switching from
one sample point to
another.
If the flow switch doesn’t
reach “zero flow” during
the switching from one
sample point to another.
The cyclical sample sequence
is stopped, and the WMS
system goes into stand-by
mode.
1. Flow switch needs adjustment. Refer
to section 5.5.2 for procedure.
2. Leakage from a 3/2-Valve. Refer to
section 5.5.3 for procedure.
3. Manual override function of 3/2-Valve
is engaged
Table 21: Alarms and Troubleshooting
