Pump Impeller Cleaning - ABB +N5600 Firmware Instructions

Pump impeller cleaning

The Pump impeller cleaning procedure consists of a programmable sequence of
motor running forward and reverse for the defined number of cycles. The cleaning
function removes the solids stuck to impeller blades and thus reduces the friction and
inertial losses during normal operation.
Speed reference
81.24 Second
step reference
0
81.21 First
step reference
81.22
First step
time
The function can be triggered using:
1. Explicit command trigger - provided by the user through Fieldbus or digital input.
2. On schedule - repeated regularly based on user timer setting.
The ongoing cleaning operation can be interrupted either manually or automatically
based on actual load supervision.
• Supervision high function can be used to abort currently running cleaning cycle to
avoid motor overheating in case of abnormal load peaks.
• Supervision low function can be used to abort the whole cleaning sequence if load
detected in course of cleaning step is below a reasonable limit. The reduced load
can be interpreted as green light to switch to production state.
Settings
Parameter group 81 Pump cleaning
Warnings D200 Cleaning max warning
Faults D100 Cleaning max fault
Cleaning cycle 1
81.23
81.25
Off
Second
time step time
(page 440).
(page 605).
Cleaning cycle 2
81.23
81.22
81.23
Off First step Off
time
time time
(page 586).
ESP program features 59
Production
state
81.25
Second
step time
Time