ABB ACS880-01 Series, Firmware Instructions

Page: 59 / 664

ESP program features 59
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.
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 (page 440 ).
Warnings D200 Cleaning max warning (page 586 ).
Faults D100 Cleaning max fault (page 605 ).
Speed reference
Time
81.24 Second
step reference
81.21 First
step reference
81.22
First step
time
81.23
Off
time
81.25
Second
step time
81.23
Off
time
0
Production
state
Cleaning cycle 1 Cleaning cycle 2
81.22
First step
time
81.23
Off
time
81.25
Second
step time