2012年12月22日星期六

Nord frequency inverters


SK 500E

Product information

SK 500E Frequenzumrichter
Frequency Inverter SK 500E  
Performance0,33 - 125 hp
Performance0,33 - 125 hp
3ph 380 - 480 V
Output frequency0 ... 400 Hz
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The SK 500E by NORD - an inverter of (almost) unlimited possibilities!

The SK 500E frequency inverter in book size allows for intelligent configurations to be implemented at a very favourable price.With its high functionality and numerous options the scope of possible uses is virtually unlimited. Easy to parameterize and with fully automatic motor identification, the SK 500E ensures that system start-up is accomplished in a very short time. While the SK 500E is appropriate for standard applications, the SK 520E version which is provided with an extra set of features is ideal for processes with more complex requirements.

SK 500E the versatile inverter among the compact-class units

Even the basic type has got a multiplicity of features sufficient for the majority of requirements:
  • four sets of parameters switchable online
  • sensorless vectorial current control ensuring torques of up to 400%
  • automatic motor parameter identification
  • 5 control inputs to be parameterized for various digital and analogue control functions
  • 2 digital outputs, 1 analogue output
  • integrated braking chopper and control of an electromagnetic motor brake
  • PID controller and process controller
  • RS 232 & RS 485 interface
  • 32 fixed frequencies (binary-coded)
  • motor potentiometer function
  • limit switch control
  • flying start
SK 520E - a member of the supper class

Wherever drive control is of the intricate kind the SK 520E with its extra features and options will cope:
  • encoder interface (TTL)
  • CANopen interface
  • 2 additional digital inputs
  • 2 additional digital outputs
  • integrated safety features as per EN 654-1 cat. 3. Stop categories 0 and 1 to be available soon

SK 700 E

Product information

SK 700E SK 700E SK 700E
Performance2,0 - 200,0 hp
Performance2 - 214 hp
3ph 380 - 480 V
Output frequency0 ... 400 Hz
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Numerous basic features
The SK 700E is a universal type of frequency inverter fitting every application. From simple speed control to complex positioning jobs, any specific modular option that may be required is conveniently integrated inside the housing.
A high performance is ensured even by the basic functions:
  • no-sensor current control for torques of up to 400 %
  • integrated line filter for a class A EMC standard (up to 22kW)
  • 4 parameter sets, to be switched without disconnection
  • a braking chopper for dynamic electrical braking preventing wear of the brakes
  • the modular construction allows for customizing the unit with no extra space being required
  • automatic identification of the modules
  • connection to all current bus systems

SK 200E

Product information

NORD Frequenzumrichter SK 200E /
NORD Frequency Inverter SK 200E Frequenzumrichter/Frequency Inverter SK 200E Frequenzumrichter/Frequency Inverter SK 200E - Baugrößen/Frame sizes 1-4
Performance0,33 - 30 hp
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NEW - The SK 200E for decentralised system versatility

After many years of experience with motor-mounted frequency inverters, with the release of the SK 200E NORD has now introduced a new series of devices which enable a wide range of decentralised drive technology solutions. These robust, reliable and economic systems are suitable for extensive plant, e.g. conveyors, and were specially optimised for price-sensitive market segments. Similar to the SK 500E Panel Mount family, an application-oriented performance level is available which offers the same high quality functionality. Expected features of decentralised components such as robust design, integration of plug connectors, rapid replacement and decentralised modules for communication and I/O signals ensure reliable integration of distributed drive units at the field level.
Scope of supply - SK 200E:
  • 1~ 115 V 0.25 – 0.75 kW
    1~ 230 V 0.25 – 1.1 kW
    1~ 230 V 0.25 – 4.0 kW
    3~ 480 V 0.55 – 7.5 kW
  • Wall-mounted version
  • Decentralised modules (also with gateway functionality)
SK 205E Basic Unit
  • High quality control process through sensorless current vector control (ISD)
  • External 24DCV control card supply
  • 4 control inputs, which can be parameterised to various digital functions
  • Externally visible status LEDs (signal state of control inputs)
  • 2 externally adjustable setpoint potentiometers
  • Plug-in memory storage module (EEPROM)
  • Automatic motor parameter identification
  • Four parameter sets, switchable online
  • Incremental encoder evaluation (HTL)
  • regenerative, 4 quadrant generator 4Q operation possible by means of optional braking resistor
  • PID controller and process controller
  • RS 232 & RS485 (RJ12 connector) diagnostic interface
  • Motor potentiometer function
SK 215E
  • Basic equipment – as SK 205E (see above)
  • Safety function “Safe stop” as per EN 954-1 (EN13849) up to max. Category 4, Stop category 0 and 1.
SK 225E
  • Basic equipment – as SK 205E (see above)
  • AS interface on board
SK 235E
  • Basic equipment – as SK 205E (see above)
  • Safety function “Safe stop” as per EN 954-1 (EN13849) up to max. Category 4, Stop category 0 and 1.
  • AS interface on board
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