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Conveyors Under Control

Conveyors under control

Craig our Service Engineer is upgrading multiple soft starts at a large site in London. The original 2K Torq-master units were supplied in 2002 and have been running conveyors loading aggregate onto trains. The customer runs a 24/7 operation and needed to maintain continuity of supply of spare parts. The 2K cannot be supported due to component issues on the firing board hence the need to upgrade to the 3K or third generation of Ralspeed soft starters. The 2K Torq-master was chosen for this site because of its ability to smoothly accelerate the motor to speed in the least amount of current and the 3K builds on that original concept giving tight torque control during the starting phase. The upgrading has been made easier because the footprint, fixing centres and terminal connections are identical to the 2K version. The 3K soft start has the following additional features that are ideal for conveyor systems...

·       Torque boost facility for ‘sticky’ loads

·       Adjustable torque control during ramp to full speed

·       Overload pre-alarm alerts the user that the normal running current has been exceeded, this could point to a pending fault

·       Adjustable earth leakage detection, useful for giving early warning of short circuits before they become more serious

·       Unique underload circuit detects if motor is not loaded and can stop the motor to save energy, the user can then set a time for it to restart

·       Adjustable stall protection

·       Digital input automatically changes starting settings, so user can choose hard or soft start depending on load conditions

·       Inbuilt data logger records the last 1000 events, downloadable though the USB port

·       Thermistor input for detecting motor over temperature

Ralspeed Ltd are the sole manufacturer of the Torq-master soft starter and also a premium partner and service centre for Danfoss Drives.

Contact for more information

22nd January 2019, 9:44
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Page updated 22nd Jan 2019, 09:47
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