Eurotherm introduces its first 'commodity' ac drive
Eurotherm Drives' new 650 series ac inverter is the company's first
'commodity' drive. Available initially in three compact frame sizes rated
at 230V (0.2-1.5kW) and 400V (to 7.5kW), the range will shortly be
extended to 90kW. While the 650 overlaps the existing 690 series in four
mid-sizes, it is a completely different animal. Aimed at the huge
majority of applications requiring only standard functionality, the 650
is designed to be easily configured and has default settings for a range
of duties, including variable torque (fans and pumps) and constant torque
(conveyors and mixers) applications.
The inverters have built-in filters up to 7.5kW and footprint filters
above this level. They are programmed via a six-button keypad and a
display provides local motor control, diagnostics and drive status
indication. Configurable inputs and outputs enable the drives to be
controlled from either 0-10V or 4-20mA signals or, alternatively, from up
to eight pre-set speeds. There are two programmable digital I/O and one
programmable analogue output for load or speed. A motor thermistor input
and relay output are provided as standard.