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Advanced commissioning
6.4 Pump control
Number
p29520
p29521
p29522
p29523
p29524
p29525
p29526
p29527
p29528
r29529
p29530[0...5]
r29538
p29546
For converters FSA and converters with PROFINET fieldbus, the factory setting for p1080 is 300 rpm.
1)
6.4.1.2
Stop mode
Function description
Two stop modes are available as follows:
● Normal stop: All pumps running in line operation are switched off simultaneously as soon as
the stop command is received. The pump in converter operation stops under the control of
the converter. Normal stop aims to quickly stop all the pumps under emergency situations
such as pipe cracks or leakages.
● Sequence stop: The pumps running in line operation stop one by one in the reverse
sequence in which they are switched on. There is a delay time (p29537) between every
pump stop. The pump in converter operation stops under the control of the converter after
the first pump in line operation is switched off. Sequence stop aims to reduce the water
hammer effect to pipes especially in systems with high power range.
After the OFF command is received, the pumps are switched off in either of the two stop modes:
● With OFF1 command received, the pump stop mode is selected in parameter p29533 as
follows:
– p29533 = 0: normal stop
– p29533 = 1: sequence stop
● With OFF2/OFF3 command received, the pumps are switched off with normal stop.
308
Name
Multi-pump control enable
Multi-pump control motor configuration
Multi-pump control motor selection mode
Multi-pump control switch-in threshold
Multi-pump control switch-in delay
Multi-pump control switch-out delay
Multi-pump control overcontrol threshold
Multi-pump control interlocking time
Multi-pump control switch-out speed offset
BO/CO: Multi-pump control status word
Multi-pump control absolute operating hours
Multi-pump control variable-speed motor
Multi-pump control deviation threshold
For more information about the parameters, see Chapter "Parameters (Page 467)".
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
Factory setting
0
0
0
20%
30 s
30 s
25%
0 s
100 rpm
-
0 h
-
20%
SINAMICS G120X converter
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