Siemens SITRANS LUT400, Operating Instructions Manual

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A5E33329501 SITRANS LUT400 (HART) – OPERATING INSTRUCTIONS Page 89
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Example:
Pump 1 is set to pump for an extra 60 seconds every 5 hours, pump 2 should not run-on.
Setting the pump start delays
In the event that power to the SITRANS LUT400 has been lost, the pump start delay
ensures that all of the pumps do not start at once to avoid power surges. There are two
parameters used here: Pump Start Delay and Power Resumption Delay.
Example:
The delay between pumps is set to 20 seconds and the delay of the first pump is set to 60
seconds.
Parameter
Sample
Value
Description
2.7.2.3.2. Run-On Interval
5 Five hours between pump run-on occurrences.
2.7.2.3.3. Run-On Duration
Pump 1
60 The pump will run-on for 60 seconds.
2.7.2.3.4. Run-On Duration
Pump 2
0 Pump 2 will never run-on.
Parameter
Sample
Value
Description
2.7.2.4.1. Delay Between
Starts
20 Wait at least 20 seconds between pump starts.
2.7.2.4.2. Power Resumption
Delay
60 Wait for 60 seconds when power is restored for
the first pump to activate.