Siemens 200 instruction manual Fixed Duty Assist P111 =, Fixed Duty Backup P111 = 51 MR

Models: 200

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Appendix D: Pump Control

All of these algorithms can be used to start multiple pumps (assist) or one pump at a time (backup).

The MultiRanger 100 and MultiRanger 200 have three main methods of pump control:

Fixed

Starts pumps based on individual setpoints and always starts the same pumps in the same sequence.

Alternate

Starts pumps based on the duty schedule and always leads with a new pump.

Service Ratio

Starts pumps based on user-defined ratio of running time.

Fixed Duty Assist (P111 = 50)

Ties the indexed pump relay directly to the indexed setpoint.

Relay Operation (for P118 = 2)

The relay contact closes at the ON setpoint and opens at the OFF setpoint. Multiple relay contacts in the pump group can be closed at the same time.

Relay Table

The following table shows relay status when each setpoint is reached.

 

Index

 

Relays

 

Setpoints

1

2

3

On 3

On

On

On

On 2

On

On

Off

On 1

On

Off

Off

Off 0

Off

Off

Off

Fixed Duty Backup (P111 = 51) [MR 200]

Ties the indexed pump relay directly to the indexed setpoint.

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

Relay Operation (for P118 = 2)

The relay contact closes at the ON setpoint and opens at the OFF setpoint. When a new relay trips the previously closed relay contact opens to shut down the running pump.

Only one relay contact in the pump group can be closed at any one time.

Relay Table

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MultiRanger 100/200 – INSTRUCTION MANUAL

7ML19981FB06

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Siemens 200 instruction manual Fixed Duty Assist P111 =, Fixed Duty Backup P111 = 51 MR