MAXDATA SN 40 M1 Instructions d'exploitation Page 42

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Commissioning
42
Alternate
G09-RIA452ZZ-15-00-xx-en-007
Fig. 19: Alternating pump control
Alternate switching is used to ensure that several pumps are utilized evenly in level control
systems. The main factor for switching on a certain pump is not a fixed assigned switch-on value
but rather which pump has the shortest operation time.
In total, the first 4 relays (LIMIT 1 to 4) can be included in the alternating pump control system.
t
t
t
Mode Max
Setpoint A 3
Setpoint A 3
- Hysterese 3
Setpoint A 2
Setpoint A 2
- Hysterese 2
Setpoint A 1
Setpoint A 1
- Hysterese 1
Measured value
Switching status
Switching status
Relay 3
Relay 2
Relay 1
Relay 3
Relay 2
Relay 1
With alternating pump control
Without alternating pump control
Relay currentless
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