User manual

Controlinc Digital Futronic VIII User Manual

Model DF320A Version 1.0

(

2003-01-31

)

1. Overview

1.1. Introduction

This manual covers basic installation, wiring, configuration, and operation of EIM Digital Futronic VIII

precision positioning controller installed in EIM 2000 Series valve actuators. The Futronic VIII controller

uses a Variable Frequency Controller (VFC) to control the motor. This manual describes the theory of

operation and details the settings required for VFC operation of EIM’s Digital Control Module (DCM)

320A with a VFC motor controller. A separate manual is provided with the VFC drive and DCM 320A.

Refer to the VFC manual for setup and programming the VFC drive. Refer to manual E796 for

mechanical setup and limit switch adjustments of the Series 2000 valve actuator. The valve actuator is

based on EIM's Modular Modular Control Package (M2CP). The VFC drive may be internal to the

actuator, close coupled to the actuator or remote mounted. EIM will wire all internal and close coupled

systems while others wire remote mounted drives during installation. Appendix A covers wiring and

programming requirements specific to each drive series provided with the actuator.

Note: Some functions, features, and options described in this manual may be disabled or may not be

present in some project specific systems.

1.2. Product Description

EIM's Digital Futronic VIII system is a precision positioner using standard 3-Phase AC motors with EIM

actuators. Futronic VIII is based on EIM's standard 320A digital control module used for many years in

EIM’s digital networks and analog control systems. The Digital Futronic VIII package uses a unique

terminal board module (TBM320A-VFC) that replaces the connection to a conventional motor starter

with a connector used for connecting to the VFC. The VFC replaces the motor reversing contactor and

inherently provides all solid state motor control and auto phase correction.

1.2.1. Mechanical Actuator Assembly with M2CP Electrical Enclosure

The main drive unit provides mechanical power to operate the valve, damper, or other positioning

device. This assembly contains the motor, gear box, hand wheel, declutch, valve position feedback

potentiometer, limit switches, and torque switches. The Modular Modular Control Package (M2CP) is

the electronic controls part of this assembly. Refer to manual E796 for instructions on setting limit and

torque switches. The M2CP consists of a DCM 320A TBM320A-VFC, Limit Switch Module(LSM), and

control voltage transformer. The M2CP accepts a 4-20mA command signal or a digital setpoint and

provides digital position feedback via the network or an optional 4-20mA signal. It also provides control

signals to the VFC based on the difference between the position command signal (setpoint) and the

position feedback signal. Control signals from the M2CP to the VFC include speed, and direction to the

VFC.