34 PCP/ESP program features
Timing diagram
At start, the pump starting speed function controls the pump to run in the start
acceleration time. After a defined delay time is passed, the function releases control
and the pumps shifts to normal acceleration time to reach the reference speed.
Settings
and
and
(Bit 14)
Warnings: -
Faults: -
Pump level control
The pump level control is a fluid level PI regulator for maintaining fluid level at a
certain set point. The pump speed is adjusted based on the requirements during the
working process. The actual fluid level value comes through a dedicated input, that
reads the signal from one or several sensors. The fluid level is maintained through
continuous speed adjustment in PI regulator. The user can enable this function in the
parameter
Note
: The pump level control provides fluid level data even if the level control is
disabled. It is also possible to check the fluid level through pressure data, since the
values are in direct relation.
Timing diagram
Non-inverted level control
When feedback from fluid level source is higher than fluid level set point, the PI
regulator output decreases, causing the speed reference to decrease. The grey
Time
Reference speed
Start
acceleration
time (Par
Wait time
(Par
Normal
ramp time
(Par
Start up reference
(Par
)
)
Содержание ACS880 ESP
Страница 1: ...ABB industrial drives Firmware manual ACS880 PCP ESP control program ...
Страница 4: ......
Страница 28: ...28 PCP ESP control start up ...
Страница 30: ...30 Using the control panel ...
Страница 94: ...94 Standard programposi features ...
Страница 100: ...100 Default control connections ...
Страница 360: ...360 Parameters ...
Страница 362: ...362 Additional parameter data Fieldbus addresses Refer to the User s Manual of the fieldbus adapter ...
Страница 436: ...436 Fault tracing ...
Страница 486: ...486 Control chain diagrams ...
Страница 492: ...492 Appendix ESP with step up transformer and sine filter ...
Страница 494: ...Contact us www abb com drives www abb com drivespartners 3AXD50000016186 Rev B EN 2015 10 27 ...