6.4.5
Deragging
Overview
Blockage in the wastewater pumps can reduce the efficiency of the system. With the deragging
function, any clogs on the pump impellers, pipes or valves can be cleared automatically. This
function saves the maintenance efforts for manually cleaning the pumps.
Precondition
Before enabling the deragging, make sure that p1143 = r29640.0 and p1144 = r29641.
Function description
The deragging mode consists of forward and reverse runs of the motors. Parameter p29590
is used to select the deragging mode.
● p29590 = 1: enabled on first run after power-up
● p29590 = 2: enabled on every run
● p29590 = 3: enabled with a Binector input (p29591)
6SHHG
W
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5HYHUVHWLPH
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5DPSGRZQWLPH
5DPSXSWLPH
S
S
S
S
S
S
S
S
S
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Parameters
Number
Name
Factory setting
p29590
Deragging mode
0
p29591
BI: Deragging enable
0
p29592
Deragging forward speed
500 rpm
p29593
Deragging reverse speed
500 rpm
Advanced commissioning
6.4 Pump control
SINAMICS G120X converter
322
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC