User Guide
MES 1003 WMS
Doc no. 100837-MAN – Rev. E1 – Rev. date 2022-10
© Danfoss IXA A/S | Page 53
Alarm name
Alarm description
Trigger
Consequence
Possible cause (Troubleshooting)
SP1 Thermal
Trip
[A132]
EOCR for sample
pump 1 active.
Alarm if the EOCR for
sample pump 1 is
activated.
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. Incorrect adjustment of EOCR in WSU1
2. Defect motor in WSU 1
3. Blocked or jammed pump in WSU 1
SP2 Thermal
Trip
[A140]
EOCR for sample
pump 2 active.
Alarm if the EOCR for
sample pump 2 is
activated.
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. Incorrect adjustment of EOCR in WSU2
2. Defect motor in WSU 2
3. Blocked or jammed pump in WSU 2
SP3 Thermal
Trip
[A148]
EOCR for sample
pump 3 active.
Alarm if the EOCR for
sample pump 3 is
activated.
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. Incorrect adjustment of EOCR in WSU3
2. Defect motor in WSU 3
3. Blocked or jammed pump in WSU 3
SP4 Thermal
Trip
[A156]
EOCR for sample
pump 4 active.
Alarm if the EOCR for
sample pump 4 is
activated.
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. Incorrect adjustment of EOCR in WSU4
2. Defect motor in WSU 4
3. Blocked or jammed pump in WSU 4
SP1 Low
pressure
[A128]
Inlet pressure in WSU
1 is too low.
Inlet pressure in WSU 1 is
below the low-pressure
limit.
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. No water supply to WSU 1
2. Blocked filter in WSU 1 inlet pipe
3. Any manual valve in WSU 1 inlet
pipeline closed
SP2 Low
pressure
[A136]
Inlet pressure in
sample pump 2 is
low.
Inlet pressure in WSU 2 is
below the low-pressure
limit.
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. No water supply to WSU 2
2. Blocked filter in WSU 2 inlet pipe
3. Any manual valve in WSU 2 inlet
pipeline closed
SP3 Low
pressure
[A144]
Inlet pressure in
sample pump 3 is
low.
Inlet pressure in WSU 3 is
below the low-pressure
limit.
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. No water supply to WSU 3
2. Blocked filter in WSU 3 inlet pipe
3. Any manual valve in WSU 3 inlet
pipeline closed
SP4 Low
pressure
[A152]
Inlet pressure in
sample pump 4 is
low.
Inlet pressure in WSU 4 is
below the low-pressure
limit.
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. No water supply to WSU 4
2. Blocked filter in WSU 4 inlet pipe
3. Any manual valve in WSU 4 inlet
pipeline closed
