Technical FAQs

Ask a Question

What are the differences between the various tripping classes of thermal overload?
There are four classes of thermal overload relay: 10A 10 20 30 These class numbers indicate the trip characteristics from cold state, and should be...
How should I configure the bus communication parameters of an ATS46 equipped with a VW3-G46301 coupler without the PC software?
  This is an obsolete drive and its service life ended in 2007 so all parts for this are now unavailable. The possibility of anyone trying to install...
Where to get drivers for the Bluetooth adaptor VW3A8115 for Zelio Logic Smart Relay SR2/SR3/Twido/ATV?
The drivers are contained in the CD, included in the Bluetooth adaptor kit accompanies, those drivers are also obtainable here. Bluetooth adaptor...
Which of the SquareD range of pressure switches are still available?
There have been many changes in the manufacturing and supply structure of Square D products since becoming part of Schneider Electric. The Square...
What are the function codes of the Modbus protocol used by IO Scanning in TCP-IP?
The following Modbus protocol function codes are used by IO Scanning on Ethernet TCP-IP:  Read only = function code 03 Write only = function code...
In a star-delta starter, how can I incorporate a thermal overload relay as per Type 1 or Type 2 coordination?
"Only tests carried out by accredited laboratories allow the announcement that a combination of equipment can protect the installation according to...
What is the difference between Pressure transmitters, Universal detectors, Pressure switches and Vacuum switches?
Pressure transmitters Are part of a range of products more properly generically referred to as Pressure Transducers.  They modify or generate an electrical...
Can I connect an SR2 or SR3 Zelio Logic Smart Relay to an HMI, separate display screen?
Yes, you can connect the SR2 or SR3 to a small HMI, this HMI comes included in a kit, starter-kit HMISTO & Zelio Logic – reference: VJDSTKSTOSR2  ...
What information is required to correctly select (specify) a contactor?
Although the contactor is probably one of the most common components in an industrial / motor control application, selecting one correctly requires...
How can manual override of an automatic control system be implemented?
There are many instances where it is necessary to have automatic control of a motor and also the provision of a manual override.   A typical automatic...
Results 1 - 10 of 100