Page 85 - AMEFT Journal 2021-4

NORD drives for decentralized stand-alone applications
NORD DRIVESYSTEMS supplies ap- plication-optimized drive systems for compact mobile machine systems like pumps or fans up to 22 kW. For variable speed operation of such ma- chines that often have only one or a few drive axes, the NORDAC FLEX SK 200E frequency inverter can be direct- ly mounted on the motor or close to the motor at the machine.
Even for mobile systems such as pumps for the wine industry or floor grinding and cleaning machines that have a manageable structure, pumped media often places high demands on drive control. The decentralized NOR- DAC FLEX SK 200E frequency inverter is suitable for applications such as mo- bile conveying or dosing in process en- gineering, and applications with simi-
lar requirements.
The inverter generates the control
voltage itself, and can be easily and locally controlled and operated via switch and rotary potentiometer. Us- ing the inverter’s integrated PLC, the device can perform minor logic func- tions autonomously. The NORDAC FLEX SK 200E demonstrates its high operational flexibility particularly with saving synchronous motors such as those required for continuous opera-
tion. In dosing application, the NOR- DAC FLEX can implement exact dosing requirements via the integrated POSI- CON positioning function.
High precision regulation at low speed
Frequency inverters from the NOR- DAC FLEX series are characterised by their high precision regulation. Extend- ing into low speed ranges, the drive control prevents strong turbulences. The drive systems ensure a high-reso- lution flow setting and – at the same time – can measure the density, tem- perature and volume of the media us- ing external sensors. In addition, the inverter ensures smooth starting and stopping of the motor, enables – with dedicated sensors – self-regulating
speeds adapting to specified pres- sure ranges, and provides effective protection against dry running.
The decentralized NORDAC FLEX SK 200E frequency inverter is suitable for applications such as mobile conveying or dosing in process engineering, and applications with similar requirements.
PROCESSING & PACKAGING
(Source: NORD DRIVESYSTEMS)
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AMEFT 4 2021 85