Siemens 200 Service Ratio Duty Assist P111 = 54 MR, Relay Operation for P118 = 2 MR

Models: 200

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Appendix D: Pump Control

Relay Table

 

 

 

 

 

 

 

 

 

 

Cycle 1

 

Relays

 

 

 

 

1

2

3

Setpoints

 

On 3

Off

Off

On

 

 

 

 

 

 

 

On 2

Off

On

Off

 

 

On 1

On

Off

Off

 

 

0ff 0

Off

Off

Off

 

 

 

 

 

 

 

Cycle 2

 

Relays

 

 

1

 

2

3

Setpoints

On 3

On

Off

Off

On 2

Off

Off

On

 

On 1

Off

On

Off

 

Off 0

Off

Off

Off

 

Cycle 3

 

Relays

 

 

 

 

 

 

 

1

2

3

Setpoints

 

On 3

Off

On

Off

 

 

 

 

 

 

 

On 2

On

Off

Off

 

 

On 1

Off

Off

On

 

 

Off 0

Off

Off

Off

 

 

 

 

 

 

Service Ratio Duty Assist (P111 = 54) [MR 200]

Selects the lead pump based on number of hours each pump has run and the specified ratios that each pump requires. Multiple pumps can run at one time.

Please note that this feature applies to the MultiRanger 200 only.

Relay Operation (for P118 = 2) [MR 200]

Please note that this feature applies to the MultiRanger 200 only.

The setpoints associated with the relays are grouped so they can be redistributed based on pump RUN time ratios. The next pump to start or stop is the one with the required time to actual time ratio.

Over time the number of hours demanded of each pump will conform to the ratios specified. Usually, the ratios are specified in percent values.

To create a grouping of pumps where two pumps make up 50% of the run time and the third pump makes up the other 50%.

P122 is set to these values:

P122 Index

Value

1

25

2

25

3

50

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MultiRanger 100/200 – INSTRUCTION MANUAL

7ML19981FB06

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Image 252
Siemens 200 instruction manual Service Ratio Duty Assist P111 = 54 MR, Relay Operation for P118 = 2 MR