Optional Pump Controls; Starting Pumps By Rate Of Level Change - Siemens HydroRanger 200 HMI Operating Instructions Manual

Optional pump controls

Starting pumps by rate of level change

Use this function when multiple pumps will be controlled by rate of level change rather
than setpoints. Pumping costs can be reduced because only the highest ON setpoint
needs to be programmed. This results in a lower difference in head to the next wet well
which, in turn, results in less energy being used to pump out the well.
Parameter
2.8.1.5. ON Setpoint
2.8.1.5. ON Setpoint
2.8.1.5. ON Setpoint
2.8.1.6. OFF Setpoint
2.8.1.6. OFF Setpoint
2.8.1.6. OFF Setpoint
2.8.1.8. Pump by Rate
2.8.1.8. Pump by Rate
2.8.1.8. Pump by Rate
2.8.2.8.1. Delay Between
Starts
When the first ON setpoint is reached, the pumps will start, one by one, until the material
level rate of change is set at the same value or greater than the value in:
2.8.1.9. Filling Indicator
•
2.8.1.10. Emptying Indicator
•
Set delay between pump starts using
Single- and dual-point
• Single-point Mode: One pump by rate control available that affects all pumps.
• Dual-point Mode: A single pump by rate control can be set up for each of the three
available level points. Set Operation for difference or average (
Dual-Point Difference or Dual-Point Average).
Notes:
• Set all pump control relay ON and OFF setpoints to the same value.
• If the level is within 5% of
not started.
A5E36281317
Index
1
2
3
1
2
3
1
2
3
Global
(pump up applications)
(pump down applications)
2.8.2.8.1. Delay Between Starts
2.2.2. Span
HydroRanger 200 HMI – OPERATING INSTRUCTIONS
Mode/
Description
Value
1.35 Starting pumps by rate allows all
setpoints to be set higher, to save
1.35
money by pumping from the highest
1.35
safe level of the wet well.
0.5 m
0.5 m
Notice that all indexed relays for both
0.5 m
2.8.1.5. ON Setpoint
ON
Setpoint
are set to the same levels.
ON
ON
The pumps will start on 20-second
20.0
intervals until the rate set in
Emptying Indicator
of the OFF setpoint, then the next pump is
2.8. 1 .6. OFF
and
2.3.10.
is met.
.
2. 1 .3. Sensor Mode
=
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