Mechanical Technology October 2015

⎪ Power transmission, bearings, bushes and seals ⎪

The digital input and output functions of the control unit are automatically configured when the operation mode is selected. The system will also automati- cally recognise which protocol is in use. The digital inputs can be configured to monitor external digital signals. Using this feature, the output contact from an external relay can be connected to the digital input of the smart relay. Significantly, it is this feature that enables the user to incorporate various protection mechanisms, such as earth leakage and thermal (PTC), in the same relay. The WEG SRW01 supports a range of communications networks including DeviceNet, Modbus-RTU, Profibus-DP, and Ethernet (2016). The communica- tions modules can be easily exchanged due to the design of the system. The WEG SRW01 has a USB port for relay monitoring, programming and online backup through a PC when using WLP software. Rapid system monitoring and relay parameterisation is done via a Human Machine Interface (HMI) keypad, and the device’s internal memory makes it possible to record up to three parameter E:\!BMG\#Jobs\Adverts\2015\092015\BMG-PT24092015-MT.cdr 07 October 2015 09:55:56 AM Color profile: Disabled Composite Default screen

Stephen Cook of Zest WEG Group shows the company’s extended range of off-the-shelf low-voltage protec- tion equipment, which now includes RW_E electronic motor protection overload relays and the compact WEG SRW01 electric motor management system.

settings or user programmes. The relay incorporates a thermal memory circuit, which will maintain the motor thermal image, even in the event of power loss. This handheld keypad allows engineers to link up to 250 WEG SRW01 smart relays offering great flexibility. The WEG SRW01 smart relay is avail- able from Zest WEG Group’s network of branches and representatives.

The Zest WEG Group’s range of motor protection and starter products also in- cludes modular contactors of up to 800 A (three-phase ac), compact contactors of up to 22 A (three-phase ac), control relays, motor protective circuit breakers of up to 100 A, enclosed starters (plas- tic or metallic), as well as customised starters and overload relays for OEM applications. q

WE’VE GOT THE DRIVE!

BMG leads the market with an unparalleled portfolio of mechanical power transmission products, supported on-site by 140 specialized Field Service technicians. So whether it’s supplying components, expertise or training, BMG is driven to enhance your production process and plant efficiency, 24/7/365

Our power transmission products are an integral part of BMG’s world of process solutions, and include:

• • •

Drive Belts & Pulleys

• • •

Couplings & Clutches Sprockets & Bushes

Transmission & Conveyor Chain

Cable Carrier Systems

Drives, Motors & Inverters

For more information contact: Tel: 011-620 1500, or visit your nearest BMG branch.

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Mechanical Technology — October 2015

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