Siemens SITRANS LUT400 Series Operating Instructions Manual page 396

Set Relays to FIXED DUTY BACKUP (FDB)
Parameter
2.7.1.5. Pump Control Mode
Set the ON Setpoints
Parameter
2.7.1.6. ON Setpoint Pump 1
2.7.1.8. ON Setpoint Pump 2
Set the OFF Setpoints
Parameter
2.7.1.7. OFF Setpoint Pump 1
2.7.1.9. OFF Setpoint Pump 2
Set Relays to SERVICE RATIO DUTY ASSIST (SRA)
Parameter
2.7.1.5. Pump Control Mode
2.7.1.10. Service Ratio Pump 1
2.7.1.11. Service Ratio Pump 2
Set the ON Setpoints
Parameter
2.7.1.6. ON Setpoint Pump 1
2.7.1.8. ON Setpoint Pump 2
Set the OFF Setpoints
Parameter
2.7.1.7. OFF Setpoint Pump 1
2.7.1.9. OFF Setpoint Pump 2
A5E33329501
Value Description
FDB
Sample
Value
1.3 m
1.2 m
Sample
Value
0.4 m
0.3 m
Value Description
SRA
25
75
Sample
Value
1.3 m
1.2 m
Sample
Value
0.4 m
0.3 m
SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS
Sets the control algorithm used to trip the pump
relay to FIXED DUTY BACKUP . Only one pump
can run at a time.
Description
Sets the level at which pump 1 turns on.
Sets the level at which pump 2 turns on.
Description
Sets the level at which pump 1 turns off.
Sets the level at which pump 2 turns off.
Sets the control algorithm used to trip the
pump relay to SERVICE RATIO DUTY ASSIST.
Multiple pumps can run simultaneously. Pump
usage is based on RUN time rather than last
used.
Sets the ratio to: 25% for pump 1, i.e. pump 1
will run 25% of the time.
Sets the ratio to: 75% for pump 2, i.e pump 2
will run 75% of the time
Description
Sets the level at which the first pump turns on.
Sets the level at which the second pump turns
on.
Description
Sets the level at which the first pump turns off.
Sets the level at which the second pump turns
off.
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