General Operation
7.7 Pump Control
SITRANS LUT400
106 Operating Instructions, 07/2019, A5E33329501-AC
7.7.2.4 Set the OFF Setpoints
OFF Setpoint Pump 1
(2.7.1.7.) (Page 186)
0.5 m** Sets the level at which pump 1 turns off. The first
cycle will use this setpoint. Subsequent cycles
rotate the setpoint among the pumps. For exam-
ple: In cycle 1, pump 1 turns off at 0.5 m. In the
next cycle, pump 2 will turn off at 0.5 m.
OFF Setpoint Pump 2
0.6 m** Sets the level at which pump 2 turns off.
1)
Sample values denoted by asterisks in illustration on Setting a pump down (wet well) group
(Page 104).
7.7.3 Other Pump Control algorithms
7.7.3.1 Set Relays to ALTERNATE DUTY BACKUP (ADB)
Pump Control Mode
(2.7.1.4.) (Page 185) or
Pump Control Mode
ADB Sets the control algorithm used to trip the
pump relay to ALTERNATE DUTY
BACKUP. Only one pump can run at a time.
Set the ON Setpoints
ON Setpoint Pump 1
(2.7.1.6.) (Page 186)
1.3 m* Sets the level at which pump 1 turns on. The first cycle will use
this setpoint. Subsequent cycles rotate the setpoint among the
ON Setpoint Pump 2
1.2 m* Sets the level at which pump 2 turns on.
Set the OFF Setpoints
OFF Setpoint
Pump 1 (2.7.1.7.)
0.4 m** Sets the level at which pump 1 turns off. The first cycle will use
this setpoint. Subsequent cycles rotate the setpoint among the
OFF Setpoint
Pump 2 (2.7.1.9.)
0.3 m** Sets the level at which pump 2 turns off.
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