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Industry 4.0 Summit

Manchester Central Convention Complex(M2 3GX)

31/03/2020 - 01/04/2020

The UK’s leading conference gathering of senior level executives from the UK manufacturing industry (more)

Drives & Controls Exhibition

NEC, Birmingham(B40 1NT)

21/04/2020 - 23/04/2020

The show brings together key suppliers of state-of-the-art equipment representing the multi-tasking culture (more)

UKIVA Machine Vision Conference 2020

Marshall Arena, Milton Keynes(MK1 1ST)

14/05/2020

Vision solutions have been applied in almost any industry you can think of. Food, beverage, pharmaceutical, (more)

PPMA Show 2020

NEC, Birmingham(B40 1NT)

29/09/2020 - 01/10/2020

PPMA Show 2020 is the UK’s largest ever event dedicated to state-of-the-art processing and packaging (more)

Advanced Engineering 2020

NEC, Birmingham(B40 1NT)

04/11/2020 - 05/11/2020

The UK's largest annual advanced manufacturing trade show, Advanced Engineering is your opportunity to (more)

Can you be sure your machine has stopped?

Dold has launched a new safety standstill back EMF monitor, the Safemaster LH5946. The unit is designed to directly monitor three phase, single phase and inverter driven motors without the need for external transuding elements, by directly looking at the back EMF created by a rotating motor. The unit is simply connected to the output connections of the motor contactor and, via an adjustable voltage setting up to 400mV and an internal adjustable safety timer up to 6sec, gives a safe indication of standstill, thereby allowing electromechanical guard interlocks to be released and operator access to dangerous machinery allowed.

The LH5946 has three NO outputs and one NC output. These are conventional redundant safety contact outputs with LED indication of broken wire detection and motor standstill. There is also one CO contact and two semiconductor outputs for status indication. The unit is TUV approved for safety applications to BS-EN 954-1 Cat 4 and EN 13849-1 to PL e and can be fully integrated with Dold solenoid locking devices and conventional or programmable safety relays.
 

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