Set Relays To First In First Out (Fifo) Assist [Mr 200]; Optional Pump Controls; Starting Pumps By Rate Of Level Change [Mr 200] - Siemens MAG 1100 Operating Instructions Manual

Set Relays to FIRST IN FIRST OUT (FIFO) ASSIST [MR 200]

Parameter
P111
P111
P111
Set the Relay ON Setpoints [MR 200]
Parameter
P112
P112
P112
Set the Relay OFF Setpoints [MR 200]
Parameter
P113

Optional Pump Controls

Starting Pumps by Rate of Level Change [MR 200]

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
P112
P112
P112
P113
P113
P113
P121
P121
P121
P132
Page 62 MultiRanger 100/200 – INSTRUCTION MANUAL
Index Value Description
1 56 Sets the pump relays (index 1, 2, and 3) to
FIFO DUTY ASSIST.
2 56
3 56
Index Value Description
1 0.4m Sets the three setpoints for the pump relays.
The first cycle will use these setpoints.
2 0.3m
Subsequent cycles rotate the setpoints
3 0.2m
among the pumps.
Index Value Description
0 1.3m By using index 0 all six relays are set at the
same time, including any alarm relays. Use
with caution.
Index Value Description
1 1.35 Starting pumps by rate allows all setpoints to
be set higher to save money by pumping from
2 1.35
the highest safe level of the wet well.
3 1.35
1 0.5m
Notice that all indexed relays for both P112
2 0.5m
and P113 are set to the same levels.
3 0.5m
1 1
The pumps will start on 20 second intervals
2 1
until the rate set in P703 is met.
3 1
G 20.0
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