Flowserve Logix 3200IQ Digital Positioner Manuel d'utilisateur télécharger pdf (Page 3)

Piezo Valve

Output 2

Output 1

Hall Effect

Sensor

Flame

Arrestor

Exhaust

Spool Valve

Flame

Arrestor

Pressure

Sensor Board

Air Supply

Analog Output Signal

Main PCB

Regulator

Filter

Flame

Arrestor

Digital Position Algorithm

LED

Display

HART

Terminals

Command

Input Signal

Air-to-Open

Configuration

Steam

Position

Sensor

Flowserve Corporation 1350 N. Mountain Springs Parkway 1978 Foreman Dr.

Flow Control Division Springville, Utah 84663-3004 Cookville, TN 38501

www.flowserve.com Phone: 801 489 2233 Phone: 931 432 4021

FCD AXAIM3200-00 9/04 Page: 3 of 32

Automax Logix 3200IQ Digital Positioner

Installation, Operation and Maintenance Instructions

Positioner Operation

The Logix 3200IQ positioner is an electric feedback

instrument. Figure 2 shows a Logix 3200IQ positioner

installed on a double-acting actuator.

The Logix 3200IQ receives power from the two-wire,

4-20 mA input signal. However, since this positioner

utilizes HART communications, two sources can be used

for the command signal: Analog and Digital. In Analog

source, the 4-20 mA signal is used for the command

source. In Digital source, the level of the input 4-20 mA

signal is ignored and a digital signal, sent via HART,

is used as the command source. The command source

selection can be accessed with SoftTools software, the

HART 275/375 communicator, or other host software.

The input signal in percent passes through a

characterization/limits modifier block. The positioner

no longer uses CAMs or other mechanical means to

characterize the output of the positioner. This function

is done in software, which allows for in-the-field

customer adjustment. The positioner has three basic

modes: Linear, Equal Percent (=%) and Custom

characterization. In Linear mode, the input signal is

passed straight through to the control algorithm in a

1:1 transfer. In Equal Percent (=%) mode, the input signal

is mapped to a standard 30:1 rangeability =% curve.

If Custom characterization is enabled, the input signal

is mapped to either a default =% output curve or a

custom, user-defined 21-point output curve. The custom

Figure 2: Logix 3200IQ Digital Positioner Schematic (air-to-open configuration)

Table VI: 4 to 20 mA Analog Output Specifications

Potential Range

40° to 95°

of Rotation

Power Supply Range 12.5 to 40 VDC, (24 VDC typical)

Maximum Load

(Supply voltage - 12.5) / 0.02

Resistance (ohms)

Current Signal Output 4-20 mA

Linearity 1.0% F.S.

Repeatability 0.25% F.S.

Hysteresis 1.0% F.S.

Operating Temperature

-40° to 176°F, -40° to 80°C

Table VII: Hazardous Area Certifications

FM/CSA

Intrinsically Safe Explosion Proof

Class I, Div 1, Groups A, B, C, D

Class I, Div 1,

Groups A, B, C, D

Class II, Div 1, Groups E, F, G

Class II, Div 1,

Groups E, F, G

(See Figure 2 for installation requirements.)

CENELEC

II 1G EEx ia IIC T4, T5

Intrinsically Safe T4 Ta = -40°C to 80°C

T5 Ta = -40°C to 35°C

Flameproof

II 2 GD EEx d IIB + H

T5, Ta = -40°C to 80°C

Compliant

1 2 3 4 5 6 7 8 ... 31 32

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Flowserve Logix 3200IQ Digital Positioner Manuel d'utilisateur Page 3

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