Specifications
56
Purpose
6-Operation
Introduction
In principle, four four levels of defects must be managed:
Process defects such as ow problems (level, pressure) or problems with the quality of materials. -
Equipment defect related to a process section such as a conveyor, settler, or crusher. -
Motor or pump fault. -
Fault in motor control, such as the soft starter or the VSD. -
Alarms are classied into different levels to help diagnostics and reduce the potential downtime.
Process control
Diagnosis of
operating
functions
Purpose
In this chapter, available operations on process control and related motor control diagnosis are described.
Process control requires information to monitor the different sections of the process and the functions related to
motor control.
It is necessary to be able to give commands and settings to the pumps and motors associated with the process
equipments. It is important to be able to manage event histories (cycles, operating time...) and to manage mea-
sured values (levels, ows, power...).
The actions necessary to manage these various levels of defects are performed by personnel who have various
qualications and use specic tools. Consequently, the presented architecture implements various diagnosis
solutions.
Five interfaces are used for process control functions and/or diagnostic functions:
The SCADA Vijeo Citect which provides complete monitoring of the process and the ability to control in manual 1
mode.
The HMI Magelis XBTGT provides a local monitoring of the process. But, it also provides a global vision of the 2
plant.
The Web diagnostic services provides system diagnosis during the maintenance phase. Products, such as 3
PLCs, ATV61, Advantys STB and ETG100 gateway are embedded with pre-loaded diagnostic pages that can
be visited from a standard web browser.
Buttons and indicators, provide quick display of the equipment status and also permit local command 4
operations on motors and pumps.
Dedicated software tools such as Unity or PowerSuite which allow diagnosis of equipment and processes, 5
particularly in the development and implementation phase of the process.
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Architecture
Process Control and Diagnostics