SFD frequency inverters –
longer service life, increased safety and speed for your crane

 

Give your crane and yourself a treat –
with our frequency inverters!
The stepless acceleration minimises stresses on the crane runway and the building structure. At the same time dangerous and time-consuming load swing is counteracted. Particularly if a high volume of loads needs to be handled and if the loads are heavy or delicate, you shouldn't do without our frequency inverters. Load-dependent travel also saves time: an analog load sensor calculates the weight suspended on the hook and permits higher travel speeds with light loads than under full load. They are parametrised by means of an external operating unit or the convenient PC software.

 

STAHL CraneSystems: SFD frequency inverter


 
 

SFD for mounting on motor up to approx. 3.5 kW
  

SFD frequency inverters –
the advantages

  • Stepless acceleration and braking, thus longer life for crane and building
  • Minimum load swing
  • Load-dependent travel via analog load sensor
  • Parametrisation via LCP2 operating unit or PC
STAHL CraneSystems: SFD for mounting on motor up to approx. 3.5 kW
LCP2 operating unit
  

Technical characteristics

  • U/f characteristic frequency control; range of adjustment up to 1:30
  • Motor potentiometer function:
    as standard, up to 4 parameter sets can be selected by external connection
  • Operation via external SPS possibleIntegrated motor temperature control (ptc thermistors)
  • Freely configurable relays for operating condition signal
  • Analog output for process value output
  • Diagnosis during operation
  • Protected against earth fault, overcurrent, overload, overvoltage and undervoltage
  • Integrated brake chopper and compact brake resistance
  • Vibration-resistant thanks to encapsulated components
  • For Ex Zone 22 as an option
  • Operation with 42/48/110/120/230 VAC control voltage
    > IP 66 protection
    > Operating temperature range:
    for SFD1 –20 °C to +50 °C;
    for SFD2 –10 °C to +40 °C
STAHL CraneSystems: LCP2 operating unit
SFD2 for installing in panel box
STAHL CraneSystems: SFD2 for installing in panel box
Basic configuration
   Variable speeds for safe operation
 

 

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STAHL CraneSystems GmbH
Fon: +49 7940 128-0
Fax: +49 7940 55665
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