Electricity + Control January 2019

round up

CONTROL SYSTEMS + AUTOMATION

PremiumVFD control for HVAC and pumps

PC setup using the DriveView7 integration software freely available from LSIS. Further options include features such as pipe fill, pipe break, pump clean, and motor pre-heating.. The Fire Mode option is designed for fire emergencies where fan control and exhausting are necessary and the mo- tor needs to keep running no matter the condition of field devices communicating with the drive. Should an event occur that results in the failure of the inverter’s oper-

complies fully with international standards such as UL, CE and EAC quality and elec- tromagnetic compatibility standard. With this standard drive the operation temperatures are rated up to 50°C at 90% humidity without condensation, making the LSLV-H100 range a robust, cost-effec- tive power saver that complements any well-designed system. Enquiries:Tel. +27 (0)11-704 0144, +27 (0)21-914 9030, +27 (0)31-903 1627; Email: info@anadigi.co.za

With the implementation of HVAC sys- tems, demands for proper control and safety are becoming less of a choice and more of a necessity. The LSLV-H100 offers features unique to HVAC and pump systems. Unlike a mul- tipurpose drive, this VFD specifically focus- es on applications for the water reticulation and ventilation industries and has many new functional features. Using MMC (Multiple Motor Control), the H100 as master can start up to five auxiliary motors with PID control to bal- ance the pressure in a system. There are also two analogue and one pulse train input and two analogue outputs with an open collector pulse output as standard. Added to this are seven programable dig- ital inputs and five programmable outputs including a NO/NC output. With the RTC (RealTime Clock), calendar set dates and time set points can be im- plemented without using external devices such as PLCs and timers. The RTC and set- tings are not installed in the keypad but in the control board, thus allowing the drive to run with or without the keypad. The keypad, which is designed for HVAC use, is able to store the drive parameters, thus enabling easy transfers from one drive to another. There is also a USB programming port for

ation, the H100 will perform a reset and restart to con- tinue the operation until either the mo- tor or the drive fails completely. Communica- tion protocols are not limited to the standard RS485 but include BAC- net MS/TP, Mod- bus-RTU, Metasys N2, and the option of LonWorks which can be added. For peace of mind, the LSLV-H100

Electrical upgrades at Zululand Anthracite Colliery EMIS 2002, part of Becker Mining SA, has completed upgrade projects at Zululand Anthra- cite Colliery (ZAC) near Ulundi in KwaZulu-Natal, which encompassed the design and instal- lation of communication, automation and protection systems, for improved productivity at the plant. “These projects involved the upgrade of existing switchgear at the plant substation and the installation of communication, automation and protection systems at the mine’s MacNel- ly Plant. Becker Mining was also responsible for the design and installation of advancements at the mine’s main washing and siding plants, as well as the establishment of a leading-edge control room,” said Frikkie Quirk, Senior General Manager, Electrical: Becker Mining South Africa. “All Becker Mining’s upgrade projects for ZAC, which were installed and commis- sioned on time, have resulted in improved efficiencies, greater productivity and energy sav- ings on the mine.” Apart from the design and manufacture of a wide range of electrical products for haz- ardous and non-hazardous applications, Becker Mining South Africa also offers a repair and maintenance service to ensure total reliability of equipment in harsh operating environments. Becker Mining SA’s specialist services to the mining sector include energy distribution, communications and automation solutions, mechanical and transportation systems and steel arch roof supports. Enquiries: Frikkie Quirk.Tel. +27 (0) 11 617 6300 or email info@za.becker-mining.com

12 Electricity + Control

JANUARY 2019