Deragging - Siemens SINAMICS G120XA Operating Instructions Manual

Advanced commissioning
6.3 Pump control
6.3.6

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)
Parameters
Number
p29590
p29591
p29592
p29593
222
Name
Deragging mode
BI: Deragging enable
Deragging forward speed
Deragging reverse speed
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Factory setting
0
0
500 rpm
500 rpm
SINAMICS G120XA converter