Schneider Electric Altivar 12 Manual De Usuario

BBV28581  05/2010

81

The auxiliary pump is controlled by the Altivar 12  via logic output LO.

Enter the values given on the motor rating plate in the Motor control menu drC
1st level adjustment parameters

ACC

 Acceleration: 0.1 s

dEC

 Deceleration: 0.1 s

LSP

 Low speed: 35 Hz

AI1t

 Scale of analog input AI1: 0-20 mA

SLP

 Nominal motor slip: 0 Hz

FLG

 Frequency loop gain: 70%

UFr

 IR compensation: 0%

tCt

 2-wire type control: LEL

PI sub-menu

PIF

 Assignment of the PI function feedback: AI1

rPG

 PI regulator proportional gain: 5.00

rIG

 PI regulator integral gain: 8.00

rPI

 Internal PI regulator reference: 51%

rSL

 Restart error threshold: 42%

Pump sub-menu PMP

MdE

 Selecting the operating mode: YES

FOn

 Starting frequency of the auxiliary pump: 49 Hz

tOn

 Time delay before starting the auxiliary pump: 1 s

rOn

 Ramp for reaching the nominal speed of the auxiliary pump: 1 s

FOF

 Stopping frequency of the auxiliary pump: 39.6 Hz

tOF

 Time delay before the auxiliary pump stop command: 1 s

rOF

 Ramp for stopping the auxiliary pump: 1 s

nFd

 Zero flow detection: 1 min

FFd

 Zero flow detection activation threshold: 42 Hz

LFd

 Zero flow detection offset: 2 Hz

tLS

 Sleep threshold operating time: 5 s

SLE

 Sleep threshold offset: 3 Hz 

LO1

 Assignment as logic/analog output PMP

Automatic DC injection sub-menu AdC

AdC

 Automatic DC injection assignment: nO

Automatic restart function Atr

Atr

 Automatic restart: YES

tUL

 Underload function time delay 5 s

LUL

 Underload threshold: 59%

FtU

 Time delay before automatic restart for the underload fault: 1 

 

Variable pump

ATV12

Fixed speed auxiliary pump

Pressure 
sensor
0-20 mA
4-20 mA
0+5 V
0+10 V