Schneider Electric ALTIVAR 58 TRX Guía de instalación descargar pdf (Pagina 75)

VVDED397047USR6/03 Chapter 2—Menus

06/2003 5—I/O Menu

Table 20 provides a description of the inputs to the PI Regulator.

Figure 18: Diagram of PI Regulator

PI setpoint input AI1

or via a configured

setpoint

rPG

rIG

feedback

Time-constant filter

AC2

dE2

Run

command

ACC

dEC

Manual speed regulation input AI3 (PIM)

ACC

dEC

Auto

Man

Reference

Ramp

if PSP = 0

inversion

Ramp

–

PSP

FBS

Multiplier

PI regulator

Ramp

if PSP > 0

PIC

±1

PI Auto/Manual selection by Logic Input (PAU)

Input AI2

Table 20: Definition of PI Regulator Inputs and Adjustments

Input Code Range Description

PI setpoint —

The setpoint to the PI regulator can be provided from one of three

sources:

• via analog input, AI1 (AI2 and AI3 can be set to sum with AI1)

• via preset setpoints defined by logic inputs (see Preset

setpoints in this table)

• over a communication network

PI feedback —

The feedback to the PI regulator can be provided from

AI2 (0–20 mA signal) or AI3 (0–10 Vdc voltage signal).

Auto / Manual

with manual

speed Input

PAU,

PIM

When the PI regulator is configured and a logic input is configured

for PAU: PI Auto / Manual, AI3 is the speed input in manual mode.

The PI regulator function is active in Auto mode. When the logic

input is open, (set to state 0), Manual mode is active and the PI

regulator is inactive. In manual mode AI3 is enabled and the drive

controller responds proportionally to the speed reference at AI3.

PI Regulator mode is active when the logic input is closed, (set to

state 1).

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 125 126

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