CAW, CW, designer supervision

Designer supervision works - supervision and organizational and technical supervision of the installation of equipment by its supplier/manufacturer or authorized partner when performing installation work by specialists of the customer/contractor and commissioning are performed by personnel of the LPGroup commissioning site - a geographically distributed structural unit, as well as employees of the assembly production and service department, depending on the specifics of the supplied equipment and systems.

The list of activities performed during production, designer supervision should be regulated at the conclusion of the relevant contract in order to meet the needs of the customer as much as possible.

Commissioning works on the technical complex of IP and DCS are carried out in the following volume and sequence: Preparatory work, including organizational and engineering preparation of works, including:
• Analysis of working design documentation, selection of measuring instruments and tools, preparation of workplaces;
• Verification of compliance of the main technical characteristics of the equipment with the requirements set out in the passports and instructions of the manufacturers (the results of the inspection are drawn up in a protocol, defective technical means are transferred to the customer for repair or replacement);
• Coordination of accounting documentation forms, etc.
Работы первого этапа выполняются, как правило, вне зоны монтажа.
Commissioning works combined with installation of controls, controls and electrical devices are performed before the introduction of an operational mode and are carried out simultaneously with installation of devices and automation equipment, including communication channels with peripheral subsystems.
These works include the adjustment of individual elements and DCS components, including:
• checking intra-system connections and preparing for activation;
• checking the correctness of the installation of cable connections, including the connection of circuits of contact sensors, control circuits of mechanisms, etc. verification is carried out for compliance with the installation requirements of the manufacturer's instructions and working documentation;
• checking the correctness of marking, connection and phasing of electrical wiring;
• setting up and monitoring the characteristics of actuators;
• setting up logical and temporal interconnections of alarm systems, protections, locks and controls, checking the correctness of signal transmission.

When performing the work of the second stage, it is allowed to supply voltage to individual mounted units from test circuits and temporary power supply circuits in compliance with organizational and technical measures provided for by safety regulations.

Commissioning works that ensure the conduct of pre-start technological operations, individual tests and comprehensive testing of all equipment.

The commissioning works of the third stage include:
• verification of the functioning of the application and system software;
• preliminary determination of the characteristics of the facility, calculation and adjustment of the parameters of the automated systems equipment, configuration of measuring transducers and software logic devices;
• commissioning and inclusion in the work of application programs in the scope of operational functions that ensure the normal operation of equipment;
• adjustment of control circuits and verification of electric drives of regulatory authorities, including software verification of equipment with testing of blocking schemes;
• adjustment of information measuring channels (discrete and analog);
• setting up and conducting pre-start tests of the subsystem of technological protections, bringing the settings of software and hardware, communication channels and application software to a state in which automated systems can be used in operation, while being carried out in a complex:
• determining the compliance of the order of testing devices and elements of alarm systems, protections and control with the algorithms of the working documentation with the identification of the causes of failure or "false" operation, setting the necessary values for the operation of positional devices;
• determination of the compliance of the shut-off and control valves with the requirements of the technological process, the correctness of the testing of limit and way switches, position and status sensors;
• determination of the consumption characteristics of regulatory bodies and bringing them to the required standard using the configuration elements available in the design;
• clarification of the static and dynamic characteristics of the facility, adjustments to the values of the system settings;
• testing and determining the suitability of automated systems to ensure the operation of technological equipment with a performance that meets the standards for the development of design capacities in the initial period;
• analysis of the automated systems operation;
• registration of production documentation, the act of acceptance of systems into operation;
• making changes to one copy of the schematic diagrams from the set of working documentation based on the results of commissioning work agreed with the customer.